Crosby Guest Blog: Shackle Inspection & Care

crosby shackles

CROSBY SHACKLES 

Crosby shackles are a popular option for lifting applications. Time-tested and work proven, Crosby has made their mark in rigging—they’ve produced the first wire rope clip, quench and temper fittings (this makes performance more reliable) and were the first to fatigue-rate products. Their shackles are particularly popular – read on to learn more about Crosby shackles and how to use them safely, a handy interactive inspection checklist and more tips for best use. 

CROSBY SHACKLES: 3 MAIN SHACKLE TYPES

Round pin shackles can be used for lifting applications and others like tie down, towing or suspension applications when the load’s strictly applied in-line.

Screw pin shackles are used for pick and place applications. Pick and place applications are when a load is moved to its desired location, and the screw pin is tightened before each pick.

Bolt-type shackles can be used in any applications that round pin or screw pin shackles are used. They’re also great for long-term or permanent installations where the load may slide on the pin, which causes it to rotate. The other way to secure a shackle includes using a nut and cotter, which eliminates the need for you to tighten the pin before each lift or movement. 

CROSBY SHACKLES: USE THEM SAFELY  

Before you put your Crosby shackle in service, make sure your shackle’s in good condition. To do so, look for these conditions:

  • The shackle’s pin works freely and fits correctly. 
  • The pins are undamaged, have no considerable wear and fit properly from the opposite side of the shackle. 
  • The load line and jaw opening are aligned.
  • The pin is always seated and is ‘matched’ to the body.
  • The shackle is the right material, size and type for the proposed lift.
  • Shackles are stored in a dry, cool place. 

CROSBY SHACKLES: INSPECTION 

It’s important to inspect your rigging equipment frequently. Ideally, this happens before use, during (check for points of stress or tension during use) and after use. Inspection is important to prevent equipment failure, which can lead to damaging the load entirely, or worse—injure or kill workers’. 

Check your shackle before use. If any of these conditions are present, remove your shackle from service and have it inspected, repaired or replaced. 

  • The shackle’s jaws or pins are distorted.
  • The shackle isn’t stamped with is safe-working load (SWL).
  • The shackle is home-made (never use homemade shackles).
  • The shackle’s pin does not work freely, or fit correctly in the shackle’s opening. 
  • The pins’ threads are damaged, worn down or don’t easily screw in from the opposite side of the shackle. 
  • The unthreaded hole is enlarged – a hole too big places unnecessary strain on the loaded shackle. 
  • The shackle has wear that’s reduced its diameter by more than 8% of its original diameter. To test for cracks that may be hidden, tap them with a hammer. A shackle in good-condition should ‘ring’ clearly.
  • The shackle’s pin has been replaced, especially if it’s been replaced with anything but a pin. 

CROSBY SHACKLES: USE THEM SAFELY OR NOT AT ALL 

There are a few things to keep in mind when using shackles for securing and lifting applications. 

  • When you use shackles in conjunction with multi-leg slings, you must give consideration to the angle between the legs of the sling. 
  • As the angle increases, so does the load in the sling leg, and as a consequence, any shackle attached to the leg. 
  • Try to avoid erratic loading of the shackle – to do this, place a loose spacer on either end of the shackle’s pin, or use a shackle with a smaller jaw. 
  • If using a shackle to secure the top block of a rope block set, the load on the shackle is increased by the value of the hoisting effort. 
  • Take care to make sure the shackle and assembly above the hook is the right capacity. 
  • It’s important that on shackles fitted with a nut and bolt pin, the length of the bolt’s plain portion will cause the nut to jam on the inner end of the thread, and not on the shackle’s eye. This leaves the bolt free to rotate.
  • Be sure the bolt and nut are cross-drilled for the fitting of a split cotter pin. 

FOR MORE INFORMATION ON CROSBY PRODUCTS,

CHECK OUT OUR BLOGS:

CROSBY QUIZ: CAN YOU PASS THIS HOOK INSPECTION QUIZ?

GUEST BLOG: CROSBY TALKS FORGED WIRE ROPE CLIPS VS MALLEABLE CAST IRON CLIPS

RIGGING HARDWARE WE LOVE: CROSBY® 4-50 CLIP APPLICATIONS


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Have questions about Crosby products? Hercules SLR will lift you to the answers.

Click here to learn more about Crosby at Hercules SLR. 

Hercules SLR is part of the Hercules Group of Companies which offers a unique portfolio of businesses nationally with locations from coast to coast. Our companies provide an extensive coverage of products and services that support the success of a wide range of business sectors across Canada including the energy, oil & gas, manufacturing, construction, aerospace, infrastructure, utilities, oil and gas, mining and marine industries.

Hercules Group of Companies is comprised of: Hercules SLRHercules Machining & Millwright ServicesSpartan Industrial MarineStellar Industrial Sales and Wire Rope Atlantic.

We have the ability to provide any solution your business or project will need. Call us today for more information. 1-877-461-4876. Don’t forget to follow us on FacebookTwitter and LinkedIn for more news and upcoming events.

NEW: Hercules SLR ‘Specials’ Page

specials at hercules slr

NEW from Hercules SLR – amazing specials and an easy place to find them. 

We released our Winter flyer in December – but the deals don’t stop there. Hercules SLR has launched a new page called ‘Specials’, so you can find all of our steals and deals in one convenient place. 

BROWSE OUR SPECIALS

Hercules SLR aims to provide securing, rigging and lifting equipment and services for all your needs. Find everything you need to push, pull, move, hull or hoist almost anything safely & smoothly. We stock a vast range of products to suit most needs, our specials page includes products you don’t see too often – all great product, at great prices. 

Find Hercules SLR Specials page here, or find it on our menu under ‘Products’ → ‘Specials’. 

The products displayed on our web site are used as part of a system employed to accomplish a task. Therefore, we only recommend using these products to accomplish the desired task within the specified Working Load Limit (WLL). Products are subject to wear, misuse, overloading, corrosion, deformation, intentional alteration and other usage factors which may necessitate a reduction in the product’s Working Load Limit (WLL) rating, or is cause to remove the product from service. 


Hercules SLR is part of the Hercules Group of Companies which offers a unique portfolio of businesses nationally with locations from coast to coast. Our companies provide an extensive coverage of products and services that support the success of a wide range of business sectors across Canada including the energy, oil & gas, manufacturing, construction, aerospace, infrastructure, utilities, oil and gas, mining and marine industries.

Hercules Group of Companies is comprised of: Hercules SLRHercules Machining & Millwright ServicesSpartan Industrial MarineStellar Industrial Sales and Wire Rope Atlantic.

We have the ability to provide any solution your business or project will need. Call us today for more information. 1-877-461-4876. Don’t forget to follow us on FacebookTwitter and LinkedIn for more news and upcoming events.

Modular Construction Trending: Innovative Workspaces

modular construction project hercules slr

WHAT’S MODULAR CONSTRUCTION?

Modular construction allows significant portions of work to be completed, off-site and usually inside in a modular workspace. It doesn’t describe the building itself, but the way it’s built. 

Many think of a mobile home or re-locatable building when they think of prefabricated or relocatable buildings, but modular construction has become more modern and sophisticated in recent years, which has led to more modular working spaces. Modular construction can be used to build either residential or commercial buildings, although commercial is the most common. 

A modular working approach to construction tends to focus on manufacturing—Read on for an example.  

EXAMPLE: A construction crew builds an office building. Instead of assembling the entire project on-site, individual parts are manufactured indoors. The crew would assemble individual wall panels indoors, and these will later be put up on-site. 

Other parts of the project could be assembled here, too—think washrooms, pre-built wall panels, ped-ways, stairs, and even the roof. 

These parts are assembled in the modular workspace, transported and put together on-site as the construction project progresses—these prefabricated parts are put together with lifting equipment like cranes or aerial lift trucks.  

modular construction capabilities by hercules slr
Modular constructed apartment.

WHAT ARE THE BENEFITS?

Since modular workplaces are a bit different than traditional construction sites, they can also reduce some of the risk or hazards found on typical construction sites. Safety can be enhanced by modular construction:

  • Less work at height—for example, on many modular projects a roof is lifted to the top with a crane. 
  • Reduce garbage and waste—working off-site can limit the amount of extra material thrown away, and can be recycled for future use. 
  • Community disruption—modular construction and workspaces bring work off-site, making the area more quiet! For example, let’s say you’re building an office on a University campus. Modular construction frees the campus from common construction disruptions (loud machinery, dust, barricades, etc.). 
  • Time—they say time is money, and modular construction can save time compared to working on-site. Prefabrication often takes about half the time and many pieces can be made at once, which lets contractors take on multiple projects, schedules can be planned more ‘tightly’ and projects are finished quickly.  
  • Remote Locations—Modular construction allows work to be taken off-site, which can be a great benefit for more isolated locations. Think—a house in Northern Alberta is mainly assembled indoors, so workers can do less work in frigid, outdoor temperatures. 

MODULAR PROJECTS

One notable modular construction project is the 57-storey skyscraper built in China by entrepreneur Zhang Yue, in just 19 days—yes, you read that right, a whole skyscraper assembled in 19 days altogether. Specifically, the first 20 storeys were assembled in seven days, but various regulations held the project up for a year before the last 37-storeys were built in 12 working days. The final skyscraper has offices that fit 4,000 people, 800 apartments and 19 atriums. 

Zhang has built a number of other buildings using the same method. A skyscraper built using traditional, on-site construction takes about 2-3 years compared to the days Zhang’s projects take to complete.

FINAL THOUGHTS

Overall, modular construction reduces uncomfortable environmental conditions for workers and clients, increases productivity and can reduce harm and injuries.

Traditional construction sites will always have a place in the industry, but it’s an exciting innovation that’s sure to shake things up. 


NEED EQUIPMENT INSPECTIONS, REPAIRS & MAINTENCE? CALL HERCULES SLR.

Equipment needs regular maintenance like relevant inspections, repairs and proper employee training to operate properly, prevent damage or injuries and work efficiently—consider Hercules SLR your one-stop-shop. We’ll inspect, test & repair your equipment, and fully certify it to comply with national and provincial safety regulations. 

We’ll keep your modular workplace running smoothly and efficiently, so you can complete projects and keep your customers and employees happy. 

Hercules SLR inspects, repairs and certifies:  

  • Lifting Magnets 
  • Hoists & Cranes 
  • Lifting & Rigging Equipment & Hardware (EX. shackles, slings, beam clamps, pallet lifters, etc.)
  • Fall Protection 

Workplace safety is important in any construction setting—We offer training for: 


FOR MORE INFORMATION ON RIGGING AND CONSTRUCTION,

CHECK OUT OUR BLOGS:

CONSTRUCTION SAFETY TIPS: SECURE YOUR WORKSITE
10 CONSTRUCTION INDUSTRY TRENDS 2018/19
7 MAJOR TRENDS THAT WILL IMPACT THE CONSTRUCTION INDUSTRY

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Hercules SLR is part of the Hercules Group of Companies which offers a unique portfolio of businesses nationally with locations from coast to coast. Our companies provide an extensive coverage of products and services that support the success of a wide range of business sectors across Canada including the energy, oil & gas, manufacturing, construction, aerospace, infrastructure, utilities, oil and gas, mining and marine industries.

Hercules Group of Companies is comprised of: Hercules SLRHercules Machining & Millwright ServicesSpartan Industrial MarineStellar Industrial Sales and Wire Rope Atlantic.

We have the ability to provide any solution your business or project will need. Call us today for more information. 1-877-461-4876. Don’t forget to follow us on FacebookTwitter and LinkedIn for more news and upcoming events.

Star Struck in Hamilton: Kevin Richardson from Heavy Rescue 401

heavy rescue 401 visits hercules

The Hercules SLR branch in Hamilton, Ontario had a special visitor stop by – Kevin Richardson from the hit Discovery Channel show, Heavy Rescue 401. Read on to find out what he and the Hamilton branch in Hercules SLR got up to during his visit. 

HERCULES SLR MEETS HEAVY RESCUE 401

heavy rescue 401 at hercules slr
Kevin Richardson of Heavy Rescue 401 and Hamilton, Hercules SLR Branch Manager Brian Moniz

Hercules SLR was excited to have Kevin Richardson at the shop – a name and face you might recognize from hauling wreckage from accidents on the 401. 

Heavy Rescue 401 is a Discover Channel show that focuses on the first responders, tow and rigging companies that clean up accidents on Ontario’s busiest highway. Kevin worked for Metro Towing on the show, and is now with Ken’s Towing. 

Being responsible to clean up accidents in a timely manner on the busiest highway requires the best lifting equipment and service – an 18-wheeler tipped over on the 401 could back up traffic for eight hours, so people like Kevin need to remove the accident, and do it quickly. There’s no one-size fits all method to remove accident wreckage, so people like Kevin need to use different methods and equipment to get the job done.

Kevin came in to pick up a purchase and learn more about how Hercules SLR can help him do his job at Ken’s Towing, safely and effectively.

Brian Moniz, Hamilton Hercules SLR Branch Manager says, « It was really exciting to have Kevin walk in our doors. I’ve actually been watching the show with my family recently, and it’s been a great chance to show them what I do for work! On Heavy Rescue 401, they’ll use wire rope assemblies to lift cars, or rope to tow a truck from the ditch, and I get to show my family the things we work on, sell and what they help people do. Personally, I’m a fan of the show and I really like that I get to see different ways rigging and lifting equipment are applied by the end-user.«

HERCULES SLR HELPS HEAVY RESCUE 401’S KEVIN RICHARDSON

Kevin came to Hercules SLR after placing an order with a local competitor. He went to their shop and the order wasn’t complete, or even processed, even though he had placed the order one-month earlier and was promised a one-month turnaround.

Unhappy with the order’s outcome, Kevin stopped by the Hamilton Hercules SLR branch, to see if they could fix his issue.

Our Hamilton branch not only placed his order during the busy holiday season, but promised and delivered a two-week turnaround – compared to the one-month lead time promised to him by the competitor. 

We were especially thrilled to accomplish this during our busy holiday season – typically, turnaround times in Hamilton are actually shorter than two weeks.

heavy rescue 401, ken's towing at hercules slr
Ken’s Towing & Recovery – Kevin’s truck

LEADING WITH SERVICE: HOW HERCULES SLR GOES ABOVE & BEYOND

After waiting the two weeks promised for his order, Kevin came to the Hamilton branch to pick it up and take a short tour.

We know service means more than simply being handed the product – our Hamilton team told Kevin about Hercules SLR’s services he could use, like: 

  •  Hercules SLR custom sling-making services (specifically, we talked about a custom 30ft X 12″ web sling);
  •  Inspection services, which can be delivered on-site or in our shop;
  •  Our exclusive asset management tool CertTracker, which will allow Kevin and the Heavy Rescue 401 crew to pull certifications on the road or straight at a worksite and notify them of upcoming inspection dates. 
Kevin was impressed with the value, timely delivery and personalized service from the Hamilton branch – we hope to see Kevin on the next season of Heavy Rescue 401! 
 
Learn more about services at Hercules SLR – check out our blogs: 

SERVICES AT HERCULES SLR


Hercules SLR is part of the Hercules Group of Companies which offers a unique portfolio of businesses nationally with locations from coast to coast. Our companies provide an extensive coverage of products and services that support the success of a wide range of business sectors across Canada including the energy, oil & gas, manufacturing, construction, aerospace, infrastructure, utilities, oil and gas, mining and marine industries.

Hercules Group of Companies is comprised of: Hercules SLRHercules Machining & Millwright ServicesSpartan Industrial MarineStellar Industrial Sales and Wire Rope Atlantic.

We have the ability to provide any solution your business or project will need. Call us today for more information. 1-877-461-4876. Don’t forget to follow us on FacebookTwitter and LinkedIn for more news and upcoming events. 

Webbing Sling Q&A: Delicate Material for Difficult Lifts

webbing sling from hercules slr

WEBBING SLING: EVERYTHING YOU NEED TO KNOW

If you’re a rigger or work in material handling, you likely encounter webbing slings often in your work. A synthetic webbing sling is fantastic to lift delicate or soft materials, since their soft surface offers more protection than abrasive materials, like wire rope. 

Webbing slings come in two types — duplex and simplex. A duplex webbing sling is made with two synthetic fabric layers stitched together for extra reinforcement. A simplex webbing sling is made with only one synthetic fabric layer. 

« Just one layer? That won’t do anything, » you might be thinking—but how wrong you’d be! Even though a webbing sling may not have the same reputation for strength as say, steel, a webbing sling is surprisingly strong. 

There are some misconceptions and often-asked questions about synthetic materials in the industry—so we’ve asked Hercules SLR experts from our Brampton, Ontario branch to help. 

Read on to find out the questions we hear about webbing slings, and how our experts’ answer. 

Q: What are they usually made from? 

Answer: A flat webbing sling is usually made from woven polyester, nylon (otherwise known as polyamide) and polypropylene.   

Q: Do flat webbing slings come in just one width? 

Answer Flat webbing slings come in different widths – but their ultimate flexibility and strength is noted by the number of webbing layers stitched together. webbing sling at hercules slr

Q: Should I use paint or dye to colour code webbing slings? This should help me identify them quickly and easily, right?

AnswerNO! Don’t use paint to colour code webbing slings—the solvents in the paint could corrode the synthetic material. A torn or broken sling is unsafe, and will drastically reduce it’s SWL. To identify a synthetic sling’s material, look for the label colour: 

Polyester (PES)—Blue Label, or blue with a green line down the center of the webbing. 

Polyamide (PA)—Green label

Polypropylene (PP)—Brown label

Q: What chemicals will affect webbing slings?

Answer: Polyester isn’t affected much by acid, but alkali’s will damage a polyester webbing sling. An alkali, or alkaline is basically a substance with a pH level higher than 7. Examples of alkali substances are sea water, baking soda, bleaches, lye and even blood. Polyamide’s are basically immune to alkali damage, but are damaged by even moderately-strength acids. They can also lose up to 15% of their SWL when wet. Polypropylene is resistant to acids and alkali’s, which makes them a good choice when you have to lift something which needs protection from chemicals. Be sure the polypropylene is stabilized to protect from ultraviolet degrading. 

Q: What markings should I look for on a webbing sling?

Answer: Look for the safe-working load (SWL), identification number and the label’s colour code.

 Q: How do I store my webbing sling?

AnswerIt definitely matters! Be sure to store your slings in a dry, cool place. Keep them out of sunlight or other ultra-violet radiation, and don’t store them in damp conditions. 

Q: So, they’re really strong – does that mean I can use them to lift anything? 

AnswerDon’t use a webbing sling for a critical lift! Make sure you use extra caution and have a detailed lifting plan for using a webbing sling with delicate or fragile lifting operations. 

Q: Okay, so what’s a critical lift?!

Answer: A critical lift is defined by WorkSafe BC as a lift with high risk factors that could cause the crane or hoist to fail, or poses a significant potential harm to human life. A critical lift is also one that needs a detailed rigging plan before the operation. 

Other factors that can make a lift critical are: 

  • When a piece of powered lifting equipment exceeds it’s rated capacity by 75%;
  • A mobile crane or boom truck goes over rated capacity by 90% lifting a load over 50% of its maximum permitted load radius; 
  • Tandem lifts— which is when more than one piece of powered lifting equipment is used, or is used to lift another piece of lifting equipment);
  • A person is being lifted;
  • The load is under-water or submerged. 

Q: Can I tie a knot in a webbing sling to make it shorter?

Answer: Never! Don’t knot, tie or twist a webbing sling. Don’t manipulate the sling’s angle, either—use the sling however the angle forms naturally.  

hercules slr webbing sling formation types
Figure 1—Webbing Sling Types

Q: When should I not use a webbing sling? 

Answer: Don’t use a webbing sling if you don’t know the SWL. Don’t use if the eyes or other part of the webbing sling is damaged, if the sling’s eye opens more than 20°. There are 5 different types of possible webbing sling eye formations—see figure 1. If using a Type 1 webbing sling (called a choker sling), be sure to protect the eye before use. 

Q: What should I keep in mind when using a webbing sling? 

Answer: There are a few things to consider to use a webbing sling safely—you should always: 

  • Avoid shock-loading.
  • Protect the sling with sleeves when sharp edges could tear its fabric—friction can cause heat damage, which is the most common form of ‘heat’ damage to webbing slings. To prevent, don’t let the sling run along the load’s surface and that it’s not pulled on any sharp corners. This is also known as ‘point loading’, when the load is pulled on a sharp corner, creating heat which results in heat fusion in the sling material. 
  • Never pull a sling from underneath a load. 

DOWNLOAD OUR SYNTHETIC SLING INSPECTION GUIDE


References: https://en.oxforddictionaries.com/definition/alkali, https://www.worksafebc.com/en/law-policy/occupational-health-safety/searchable-ohs-regulation/ohs-regulation/part-14-cranes-and-hoists

Hercules SLR is part of the Hercules Group of Companies which offers a unique portfolio of businesses nationally with locations from coast to coast. Our companies provide an extensive coverage of products and services that support the success of a wide range of business sectors across Canada including the energy, oil & gas, manufacturing, construction, aerospace, infrastructure, utilities, oil and gas, mining and marine industries.

Hercules Group of Companies is comprised of: Hercules SLRHercules Machining & Millwright ServicesSpartan Industrial MarineStellar Industrial Sales and Wire Rope Atlantic.

We have the ability to provide any solution your business or project will need. Call us today for more information. 1-877-461-4876. Don’t forget to follow us on FacebookTwitter and LinkedIn for more news and upcoming events.

Become a Rigger: Your Career Map

"become a rigger"-become-a-rigger-hercules-slr-rigging-careers

BECOME A RIGGER.

BECOME A RIGGER: YOUR CAREER MAP

                                    

BECOME A RIGGER: TRAINING & EDUCATION                                                                               

 

 

So you want to become a rigger?

A rigger’s main responsibility is to lift, lower, hoist and pull objects using machinery and lifting equipment like synthetic, chain and wire rope slings, hoists and cranes.

They are responsible to make and determine the best configurations and equipment to lift a load, be knowledgeable about safety & operating procedures and know how to fabricate, repair, inspect, install and service rigging and lifting equipment – lifting equipment can range from synthetic slings, wire rope, lifting magnets or cranes and aerial lifting trucks. 

Certain industries, or niche industries (particularly those that require you to use and operate heavy machinery and equipment like cranes and lifting trucks) will require a specific certification to operate them. 

A rigger can provide these services: 

  •  Inspections, on-site or in-shop
  •  Load tests 
  •  Crane repair, sales, inspection and installation
  •  Training
  • Sales and services 

BECOME A RIGGER: TRAINING AND CERTIFICATIONS                                                                

 

 

Many industries that use riggers or rig technician’s don’t require formal training, but do require and/or provide on-the-job learning, training courses and certifications.

However, it may be beneficial to complete a college or technical diploma, which can improve your chances of getting a job or apprenticeship.  

At Hercules SLR, our riggers have a combination of LEEA certifications and on-the-job training from our certified trainers and inspectors.  

Some of these include:

  • Lifting Certifications from LEEA
  • Training Courses 
  • College Diploma 

You also have the option to become a rig technician, which is a Red Seal Trade in Canada. According to the NSAA, a rig technician: 

  • Operates drawworks, rotary equipment and pumps 
  • Inspects rigs 
  • Maintains records of drilling operations
  • Oversees rig mobilization and demobilization 

You don’t need formal education to become a red seal technician, but must complete 9,000 apprentice hours to qualify to complete the rig technician red seal exam. A rig technician is responsible for the above duties, but also operating tools, wearing and ensuring the proper PPE is used and must operate lifting and hoisting equipment. 

become a rigger, "become a rigger"
Cranes, chains & cargo – a glimpse at common items and equipment found in rigging industry 

BECOME A RIGGER: ESSENTIAL SKILLS                                                                                              

 

                                                                                                 You might wonder— »This sounds nice, but what should I be good at to be a rigger? » A career as a rigger may be right for you if you’re:  

  • Mechanically inclined;
  • Comfortable with math and physics; 
  • Interested in a balance of both physical and administrative work, comfortable using technology;
  • A strong, effective communicator;  
  • An eye for detail and quick decision-making; 
  • Comfortable in harsh climate conditions, rigging often involves working in the extreme heat or       cold.  

BECOME A RIGGER: INDUSTRIES YOU COULD WORK IN                                                           

 

 

  • Entertainment (set and stunt rigging) & Theatre (stage rigging) 
  • Maritime, marine & fishing – sailboat rigging included 
  • Airline 
  • Construction  
  • Offshore Drilling/Oil and Gas 
  • Mining 
  • Manufacturing
  • Forestry
  • Transportation
  • Utilities 
  • Shipping/Receiving and Material Handling 

BECOME A RIGGER: LIKE THE SOUND OF THESE JOB TITLES?                                                   

 

 

If you become a rigger, you could have one of these job titles: 

  • Slinger
  • Parachute Rigger
  • Sailboat/Ship Rigger
  • Gantry Rigger
  • Machinery Mover
  • Hook Tender
  • Wire Rigger
  • Yacht Rigger
  • Grip
  • Crane Rigger
  • Acrobatic Rigger
  • Theatrical Rigger

BLOGS                                                                                                                                                             

 
 
 
 
Interested to learn more about rigging, becoming a rig technician and rigging and lifting equipment? Check out our blogs below:
 

HERCULES TRAINING ACADEMY

TRAINING COURSES

References: https://www.nscc.ca/Learning_Programs/Programs/PlanDescr.aspx?prg=MIRG&pln=MARINDRIG, https://nsapprenticeship.ca/trades#accordion58, https://www.myplan.com/careers/riggers/description-49-9096.00.html, http://www.red-seal.ca/trades/rigtech/2012n.4.1_.4v.2rv.3.2w-eng.htmlhttps://www.jobhero.com/how-to-become-rigger/, https://www.myplan.com/careers/riggers/description-49-9096.00.html
 

Hercules SLR is part of the Hercules Group of Companies which offers a unique portfolio of businesses nationally with locations from coast to coast. Our companies provide an extensive coverage of products and services that support the success of a wide range of business sectors across Canada including the energy, oil & gas, manufacturing, construction, aerospace, infrastructure, utilities, oil and gas, mining and marine industries.

Hercules Group of Companies is comprised of: Hercules SLRHercules Machining & Millwright ServicesSpartan Industrial MarineStellar Industrial Sales and Wire Rope Atlantic

We have the ability to provide any solution your business or project will need. Call us today for more information. 1-877-461-4876. Don’t forget to follow us on FacebookTwitter and LinkedIn for more news and upcoming events.

Welcome to Ontario: Brampton Riggers Talk Chain Hoist Safety

chain hoist,

CHAIN HOISTS

Chain hoists (sometimes referred to as chain falls or their older term, ‘chain blocks’) are popular piece of equipment to lift heavy loads. A chain hoist is durable and allows heavy loads to be lifted with ease since they require much less strength on the part of the rigger. However, this means they’re more likely to be abused since they typically make a lift much easier, but are not suited for every application.

Rigger Colin Grieg of Brampton, Ontario shared what to look for when inspecting your chain hoist and tips for use.

Before you install your chain hoist, check: chain hoist, Welcome to Ontario: brampton riggers talk chain hoist safety, hercules slr

  • Clean the load chain with a solvent, then add slack to the chain and make a link-by-link inspection for nicks, gouges, twisted links and excessive wear or stretch;
  • That the load chain anchor pin is in good condition;
  • That the top and bottom hook safety catches are operating correctly;
  • Check hooks for cracks, damage, distortion and excessive throat opening – a damaged hook often means it was misused and should be removed from service;
  • Hooks swivel freely;
  • Check name plate and see that SWL, ID number and colour code (if used) are clearly visible.

After installation and mounting, check:

  • That load chain sits correctly in the pocket wheel. To do this, run the unloaded hook up and down a reasonable distance – the chain should run free of snags or binds;
  • The hoist is rigged to lift in a straight line from hook to hook;
  • The hoist is free to swivel on the upper hook;
  • For damage on the handwheel and gear covers.

CHAIN HOISTS: hand chain

Although hand chains are not load bearing, make sure:

  • The chain is free of twists and damage to links;
  • The chain is smooth to touch and ‘joint’ links sit firmly in the chain wheel’s pocket;
  • The chain wheel turns freely with no signs of a bent spindle, buckled wheel or damaged ‘chain pockets’;
  • Make sure operation in ‘hoist’ mode produces a ‘hard’ sound – this is the sound of a ratchet running under a spring-loaded pawl.

CHAIN HOISTS: safety first

  • If the chain’s twisted, don’t use the hoist;
  • Don’t use the load chain as part of a sling configuration;
  • Chain hoists can only be used at its maximum capacity to lift a load vertically – if you must lift a load at an angle, the hoist’s capacity is greatly reduced;
  • Don’t operate a chain hoist beyond the capacity specified – you will cause the bottom hook to run beyond it’s range of lift, and possibly add too much weight to the load-chain slack-end anchorage;
  • Don’t lift a load beyond it’s specified SWL (safe-working load);
  • Don’t let dirt, grease or other harmful debris/chemicals to collect in the load’s profile or hand-chain wheels;
  • Don’t use your load chain if it jumps, is not ‘smooth’ or has marks – this means it’s likely ‘out of pitch’ and should be replaced and removed from service;
  • You should not need extra force/strength to operate your chain hoist – if using extra strength, stop the lift immediately and find the cause. (An easy tip? If it takes more than one man – something’s wrong!)

CHAIN HOISTS: post-mount & pre-use 

After you mount your chain hoist but before you actually use it, you should inspect the following:

  • The chain hoist shouldn’t be allowed to lay against a support, since this can cause the hook or frame to bend and damage the unit;
  • Make sure the hoist can swivel through 360° on the top hook;
  • Make sure the ‘member’ the hoist hangs from is sat all the way in the middle of the chain hoist’s saddle.

CHAIN HOIST: crane hooks

When you suspend a chain hoist from a crane hook, stay safe with these tips:

  • The chain hoist’s SWL will be reduced by 15% – this allows dynamic loading;
  • A safety link with a SWL of 5 times the load weight should be fit between the crane hook and load shackle;
  • Before you hoist with a crane, conduct a short lift test with both to make sure the hoist brake is locked.

CHAIN HOIST: storage 

To store your chain hoist:

  1. Raise bottom hook
  2. Wrap load chain
  3. Wrap hand chain
  4. Secure ends

When storing your chain hoist, be sure to: 

  • Lubricate chain hoist with oil or grease – be careful, as misapplied lubricant may enter the brake disc and cause it to fail under the load;
  • Make sure you have a dedicated spot to store your chain hoist – this place should be dry and free from injurious pollution and extremes of temperature;
  • Chain hoists should be suspended by their top hooks, and the hand chain should be clear of the ground – this will prevent damage to the chains;
  • Don’t use strong solvents on your chain hoist – ensure wet or dirty chain hoists are clean before storing.

CHAIN HOIST HOW-TO: light load brake lock-out test

  1. Suspend chain hoist from a suitable lifting point, and apply a load test of 5% chain hoist SWL to the load hook;
  2. Stay clear of the load – raise test load 70 to 100mm from the ground;
  3. Enter restraint pin through lack side of load chain;
  4.  Operate the chain hoist and lower the direction until the restraint pin gives a lock against the heavy pull of the chain hoist;
  5. Remove the restraint pin and make sure the brake engages right away, which will stop the load from dropping;
  6. If the load drops – don’t use the chain hoist. Remove them from service, and have them repaired.   

VIEW CHAIN HOISTS  chain hoist, hercules slr, lfiting equipment


Hercules SLR is part of the Hercules Group of Companies which offers a unique portfolio of businesses nationally with locations from coast to coast. Our companies provide an extensive coverage of products and services that support the success of a wide range of business sectors across Canada including the energy, oil & gas, manufacturing, construction, aerospace, infrastructure, utilities, oil and gas, mining and marine industries.

Hercules Group of Companies is comprised of: Hercules SLRHercules Machining & Millwright ServicesSpartan Industrial MarineStellar Industrial Sales and Wire Rope Atlantic

We have the ability to provide any solution your business or project will need. Call us today for more information. 1-877-461-4876. Don’t forget to follow us on FacebookTwitter and LinkedIn for more news and upcoming events.

Crane Equipment: cranes, chains & automobiles

crane equipment, hercules slr, rigging services

Cranes have been used since the first century – in that time, they were powered by humans or animals to lift heavy loads. Cranes have adapted and come a long way since – they now use an assortment of crane equipment and hardware to lift, lower and even sometimes move horizontally.

Read on to learn more about the modern variety of crane equipment available and Hercules SLR’s tips for using it.

CRANE EQUIPMENT: an overview

For rigging with cranes, different types of lifting equipment (also known as tackle) are used. These include:

  • Wire Rope Slings
  • Synthetic Slings
  • Shackles
  • Snatch Blocks
  • Hooks
  • Chain Hoists
  • Chain Pullers
  • Eye Bolts
  • Tirfors
  • Jacks
  • Lifting Beam
  • Spreader Beams
  • Beam Clamps
  • Plate Clamps

CRANE EQUIPMENT: wire rope slings

Pay special attention to wire rope slings as they are susceptible to server wear, abrasion, impact loading, crushing, kinking and overloading – small changes in the slings’ angle affect the safe working load of the sling. Care should be taken around rough edges and wire rope slings – even an edge you might not consider ‘sharp’ can make considerable damage to your wire rope sling, making it unsafe and ineffective. Use sleeves, wear pads or corner protectors to protect your wire rope sling from damage.

Be sure to not drop a load or run a load over the sling – this will crush the sling. Also, don’t stop and start suddenly while you lift and lower with a wire rope sling, as this increases the slings’ stresses and increases possible failures.

WIRE ROPE SLING SPLICES

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WIRE ROPE SLING IDENTIFICATION 

There are three ways to identify wire rope slings: the SWL, I.D. number and certificate number.

  1. Hard-stamped on ferrule
  2. A tag which has a wire running through the tag and eye of the sling
  3. Large metal washer where the wire of the sling is passed through when you make the eye of a sling

WIRE ROPE CONFIGURATIONS

There are three main wire rope sling configurations:

  1. Double-Choker Hitch
  2. Pair of Double Wrap Chokers
  3. Single Choker Hitch

Round slings’ are versatile – they’re strong, yet delicate to the load to lift. They’re light, flexible in many directions and malleable which is especially helpful when lifting an awkward or delicate load.

crane-equipment-hercules-slr
Synthetic Round Sling Label

CRANE EQUIPMENT: synthetic round slings 

Round slings’ are not easily damaged by sunlight, humidity, grease, dirt or seawater. Round slings’ are identified by the colour of the label, and also have the SWL on it.

CRANE EQUIPMENT: web slings 

Web slings are suited for particularly those that can be easily damaged. They’re easy to damage if you use them improperly – your web sling shouldn’t touch a sharp edge, heat or chemicals that will cause damage.


CRANE EQUIPMENT: hardware

SHACKLES

For crane lifting, two different shackles are typically used – bow and d-shackles. When using synthetic slings with a crane, two types of shackles are available, wide sling shackle and a round sling shackle. Web sling shackles are wider and bow out in the middle, and round sling shackles are narrow and sometimes have small valleys in the shackle bow, which supports the synthetic strands better.

These prevent the sling from bunching and pinching, which can be an issue with bow or d-shackles – it also reduces the SWL capacity of the sling.

To use shackles for crane lifting safely, follow these tips:

  • Don’t replace the shackle pin with a bolt – only the proper fitted pin should be used. Bolts aren’t meant to take the bend that a pin can handle.
  • Pins must be straight and all-screw pins must be completely seated
  • Cotter pins should be used with all round pin shackles
  • Shackles worn at the crown or pin by over 10% of original diameter should be removed from service and destroyed.
  • Don’t pull your shackle at an angle with a sling or hoist rope – this reduces the shackle’s capacity by 50%. Spacers can be used to centralize the load on the pins with spacers.
  • Don’t use screw pin shackles if the load can roll under load and unscrew

SHEAVE BLOCKS

A sheave block is a single, or multi-sheave block which opens on one side – this opening allows a rope to be pulled over the sheave and eliminates the need to be threaded through the block. When crane lifting with wire rope, sheave blocks can be purchased with configurations for hook, shackle, eye and swivel fittings.

  • Sheave blocks are normally used when it’s necessary to change the direction of pull on the line. When this happens, the stress on the sheave block is significantly greater than the angle between the lead and load lines. 
    crane equipment, rigging services, hercules slr, Crane Equipment: cranes, chains & automobiles
    Pulley with a sheave on a mobile lifting crane, with 25-ton lifting capability
  • When the lines are parallel, 1000lbs on the lead line results in double the weight on the block—2000lbs on block, hook and whatever the connection points are attached to. As the angle between lines increases, the stress on the block and hook is reduced.

HOOKS

Many different hooks are available for lifting and rigging operations – check with manufacturer instructions and warnings before using in a crane application.

When using hooks to lift with a crane, follow these tips:

  • Ensure hoisting hooks are fitted with safety latches (except grab and sorting hooks)
  • Inspect hooks often, looking for wear in the hook’s saddle – check for cracks, corrosion and if the hook’s body is twisted.
  • Inspect the shackle’s throat opening – if the hook’s been overloaded or is weak, the throat will open. If this is the case, remove from service and destroy so no one else attempts to use it.
  • Inspect for cracks in the hook’s saddle and neck
  • Be sure the hook is stamped with its SWL
  • Note that the SWL applies when the load is in the saddle of the hook, as this reduces the SWL.

TURNBUCKLES 

Turnbuckles are sometimes called rigging screws and can be supplied with eye end, jaw end, stub end fittings and/or a combination of these.

  • Use turnbuckles fabricated from alloy steel with weldless construction.
  • If turnbuckles have end fittings, ensure hooks are fit with safety latches.

CHAIN HOISTS / CHAIN BLOCKS 

Chain hoists are often used with cranes to move larger equipment and machinery. Chain hoists vary in size and length, and require little effort to execute a lift.

Chain hoists are durable, but can be damaged easily. To prevent damage, check:

  • The SWL is right for the application/load
  • The chain hoist has been inspected or certified by a third party
  • The hoist’s body is free of cracks or broken castings
  • The hook isn’t deformed and is fit with a safety latch
  • Anchor pins are in place correctly, and are the right type
  • Chain is in good working condition
  • SWL is clearly marked on the chain hoist block

A lever hoist is similar to a chain hoist, but operates slightly different with a lever to lift and lower the load – it can also be used to pull loads.

EYE BOLTS 

When lifting with a crane and eye bolts, ensure eye and ring bolts are made of alloy steel and have shoulders or collars.

Do not load eye bolts at an angle – angular loading reduces the weight of the load they can safely support.

TIRFOR

A tirfor is a mechanical device, equipped with a level handle to operate. They’re used to pull and add tension, and can also be used to lift if they have blocks.


Hercules SLR is part of the Hercules Group of Companies which offers a unique portfolio of businesses nationally with locations from coast to coast. Our companies provide an extensive coverage of products and services that support the success of a wide range of business sectors across Canada including the energy, oil & gas, manufacturing, construction, aerospace, infrastructure, utilities, oil and gas, mining and marine industries.

Hercules Group of Companies is comprised of: Hercules SLRHercules Machining & Millwright ServicesSpartan Industrial MarineStellar Industrial Sales and Wire Rope Atlantic.

We have the ability to provide any solution your business or project will need. Call us today for more information. 1-877-461-4876. Don’t forget to follow us on FacebookTwitter and LinkedIn for more news and upcoming events.

Shackles: A Hercules Hardware How-To

shackles-rigging-services-hercules

Shackles are typically used as connection points for lifting equipment in many securing and rigging applications.

The type of shackle you use will depend on the lifting operation—Each has a slightly different design to suit them to various functions. There are three main types of shackles typically used for lifting applications:

  1. Dee
  2. Bow (commonly known as an anchor shackle)
  3. Screw Pin (commonly known as a grab)
    shackles-d-shackle-hercules-rigging
    D-Shackle
Dee Shackle
shackles-screw-pin-shackle
Screw pin shackle with cotter/split pin

Dee shackles are mostly used for single-point lifting.

Bow Shackle
shackles-bow-shackle
Bow Shackle

Bow Shackles are designed to be used to carry out multi-point lifts.

Screw Pin/Grab Shackle

Screw Pin or Grab Shackles are used when the shackle is required to pass through an opening, like a pipe or over an object. It is designed with a countersunk pin to facilitate this.

  • Used where a shackle is removed on a regular basis
  • When fitted, the pin must engage with the shackle body and tighten fully
  • Screw pins can be moussed in place for long-term applications, or when there’s a risk of the pin backing out due to vibration, etc. Confirm with your supervisor to make sure this is accepted on your worksite.
Bolt Types: Nut, Bolt and Cotter Pins
  • The bolt type pin (bolt, nut or cotter) is used when a load is permanent or semi-permanent.
  • This requires the rigger to insert a split pin, which captivates the nut on the pin.
  • If fitted correctly, the pin will rotate freely within the shackle body.
Round Pins

The round pin is commonly use for tie-down, suspension, towing and straight line lifting only. Don’t use round pins with multiple slings or where side loading may occur.

Pin Sizing
  • A shackle will be sized from the diameter of the bow, not pin.
  • A pin of a shackle is usually one size larger than the bow to achieve the strength of the bow. Consider this when you order a shackle for specific jobs, like a lifting lug.
Pin Replacement

Never replace a shackle’s pin with:

  • A bolt
  • A differently branded pin
  • An incorrect pin size

Angular Loading

  • Do not exceed included angle of 120° when rigging with shackles and multiple slings.
  • Apply reductions in WLL when you use shackles loaded at angles

Specialty Shackles

Round and web sling shackles that are used with synthetic slings look slightly different.

  • Wide body shackles have a larger D/d ratio for the sling, and improve the life and efficiency of the sling.
  • ROV or remotely operated vehicle shackles are painted bright yellow or white so they are visible in dark waters, the pin is also easier to access with a ROV.
  • Web sling shackles are wider and bow out in the middle
  • Round sling shackles are narrow and sometimes have tiny valleys in the bow of the shackle so the strands are better supported.

How-To: Your Pre-Use Check

Before you use your shackle, you must inspect the following on all shackles:

  • Markings are present, correct and legible including: manufacturer, working load limit (WLL), size, grade/material type
  • The correct pin is fitted
  • No visible signs of damage to the body or pin like nicks, gouges, deformations, stretch, bends, corrosion, etc.
  • No evidence of misuse

In addition to your pre-use check, be sure to avoid swing loading and shock loading, secure sling legs not in use, never leave a load suspended—or walk under it.

How it’s Made

Lifting shackles are manufactured using the drop-forge process.

The drop forge process involves a steel rod hammered with a large ‘drop’ hammer, and a die is fitted to it. This die has the upper impression of a shackle cut into it and this shape imprints on the steel rod. A fixed die has the lower impression of the shackle.

The forged shackle is heated then treated—this ensures a uniform structure and gives the shackle it’s desired uniform thickness.


Blogs

For more on shackles, check out our blogs below:


Hercules SLR is part of the Hercules Group of Companies which offers a unique portfolio of businesses nationally with locations from coast to coast. Our companies provide an extensive coverage of products and services that support the success of a wide range of business sectors across Canada including the energy, oil & gas, manufacturing, construction, aerospace, infrastructure, utilities, oil and gas, mining and marine industries.

Hercules Group of Companies is comprised of: Hercules SLRHercules Machining & Millwright ServicesSpartan Industrial MarineStellar Industrial Sales and Wire Rope Atlantic.

We have the ability to provide any solution your business or project will need. Call us today for more information. 1-877-461-4876. Don’t forget to follow us on FacebookTwitter and LinkedIn for more news and upcoming events.

CM Guest Blog: 3 Safety Tips to Install your CM Trolley

cm-trolley-hercules-slr

Read on to discover tips from rigging and load securing experts at Columbus McKinnon – today, they’re sharing their top three safety tips to remember when you install your CM trolley.

Whether it’s a hoist, trolley or rigging equipment, proper use, inspection and maintenance is important to ensure operator safety at all times. Operators of material handling equipment should adhere to the manufacturer’s installation, inspection and maintenance requirements outlined in the product’s operation and maintenance manual (O&M manual).

Beam clamps and trolleys are critical components of a complete lifting system and demand the same attention to safety as hoists and below-the-hook rigging. The following three safety tips are important to consider when installing and inspecting a CM Series 633 Trolley.

1. CM Trolley Safety Tip: Consider the flange and shape of the I-beam to ensure proper fit and clearance. Measure the I-beam flange and check the distance between track wheel flanges. This distance should be 1/8 to 3/16 inch greater than the beam flange width for a straight runway. Additional clearance may be required for the trolley to negotiate track sections with curves. This clearance should be kept to a minimum to ensure the trolley operates properly on both the straight track sections and the curved track sections. See Figure 1.

cm-trolley-hercules-slr-rigging
Figure 1

2. CM Trolley Safety Tip: Ensure the equalizer pin nuts have been installed properly, in accordance with the O&M manual recommendations. The pins should be tight and locked position. Nuts should be regularly inspected to ensure they’re tight and secure during periodic inspections, which can be monthly or yearly – depending on service. Refer to your O&M manual, and/or ASME Standard B30.17.

3. CM Trolley Safety Tip: It is recommended that the trolley is mounted to the hoist prior to final installation onto the beam. Follow the washer and spacer instructions in your O&M manual to properly set the trolley based on the application’s beam flange width.

Please note: washer and spacer arrangement recommendations shown in the O&M manual are affected by structural variations. The accuracy of the final adjustment should be verified by the installer to ensure proper clearance is achieved between the trolley wheel flanges and the toe of the runway beam. See Figure 2.

cm-trolley-hercules-slr-rigging-services
Figure 2

Remember, any trolley installation should always be done in accordance with the manufacturer’s instructions or the recommendations of a qualified person. Improper installation can cause unequal loading on the trolley and side beam, and as a result can cause the trolley to fall from the beam. It’s also recommended that a load test is performed to 100-125% of the rated capacity of the crane after installation.

Want more CM? Visit our Columbus McKinnon brand page for more information on Hercules SLR’s CM offerings.

Reprinted with permission via Columbus McKinnon – original article here


Hercules SLR is part of the Hercules Group of Companies which offers a unique portfolio of businesses nationally with locations from coast to coast. Our companies provide an extensive coverage of products and services that support the success of a wide range of business sectors across Canada including the energy, oil & gas, manufacturing, construction, aerospace, infrastructure, utilities, oil and gas, mining and marine industries.

Hercules Group of Companies is comprised of: Hercules SLRHercules Machining & Millwright ServicesSpartan Industrial MarineStellar Industrial Sales and Wire Rope Atlantic.

We have the ability to provide any solution your business or project will need. Call us today for more information. 1-877-461-4876. Don’t forget to follow us on FacebookTwitter and LinkedIn for more news and upcoming events.