Crane & Hoisting System: the dangers of side pulling

hoisting-system-cm-hercules-slr

Crane & Hoisting System Safety: guest post from CM Canada

Overhead lifting operations, like a hoisting system or cranes, are necessary in workplaces around the globe. The ability to lift and move material safely is critical to the success of many businesses. Failure to follow safe lifting practices can lead to serious personal injury and cause damage to equipment and facilities.hoisting-system

While there are many aspects to safe lifting procedures, one critical issue to discuss is “side pulling” and how to avoid it. Today, Hercules SLR welcomes guest blogger CM Canada to discuss the dangers of side pulling when using a crane or hoist.

Crane & Hoisting System Safety: overhead hoists are designed to raise loads vertically

Accordingly, the load being lifted must be centered under the hoist (Figure 1). Side pulling (Figure 2) occurs when you attempt to lift any load that is not located directly under the hoist. Another form of side pulling occurs when a crane operator attempts to use the trolley drives or bridge to apply force to move an object horizontally when the load isn’t first fully suspended on the hoist – it should be clear of the floor or other support. Regardless of how a side pull is applied, unintended, damaging and potentially dangerous results can occur. Side pulling a hoist or crane, in most cases, results in a violation of OSHA regulations, and numerous industry standards – check your provincial regulations for specific standards.

hoisting-system-cm-bandit
CM Bandit Hoist

ASME B30.16, a safety standard for overhead hoists (underhung) states that:

Hoists shall not be operated unless the hoist unit is centered over the load, except when authorized by a qualified person who has determined that the components of the hoist and its mounting will    not be overstressed. Should it be necessary to pick a load that is not centered under the hoist unit, precautions should be taken to control the swing of the load when it is picked clear of its support.

Crane & Hoisting System Safety: what are the dangers of side pulling?

  • As the load is lifted free of the floor or other support it will attempt to center itself under the hoist, causing the load to rapidly swing in a horizontal arc (Figure 3). This pendulum effect can cause serious injury to personnel or damage to other equipment in the area.hoisting-system
  • The wire rope or load chain can be forced out of the grooving or pockets on the hoist drum or lift wheel. This can damage the chain/rope, and may also cause damage to drums, sheaves, and other components. In the best case scenario, this can lead to costly repairs and downtime. More importantly, it could cause the chain or wire rope to break and the load to drop, putting equipment, facilities, and personnel at serious risk.

– Side pulling at an angle that is not in line with the length of the bridge or monorail (Figure 4) could cause the trolley hoist to tip, making the trolley inoperable. In the worst case, the trolley hoist could actually be pulled off of the beam. This side pull condition also puts stresses on the beam itself and could cause the beam to skew (Figure 5).

  • Side pulling is not considered “normal operation” of the hoist and therefore may void the manufacturer’s warranty.
  • Attempting to lift a load that is located beyond the end of a bridge beam or monorail (Figure 6) could damage the safety stops at the end of the beam. In rare cases, this has caused the trolley hoist to fall off the end of the beam.

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The number of inquiries professional riggers receive regarding side pulling amaze me. These are sometimes phrased like “what is the maximum angle of side pull that is permissible with your hoist?” Customers may also make a statement such as “The distance from my bridge beam to the floor is only 20’ but I need a few feet of additional wire rope on the hoist so I can pull materials out of the adjoining bay.”

These are the GOOD situations, where at least the potential for side loading has been made known and it can be properly addressed. What worries me are the situations where these circumstances may exist but are not made known to the hoist/crane manufacturer or crane service provider.

Fact: Side pulling is one of the most common and most dangerous mistakes with overhead cranes. 

Crane & Hoisting System Safety: 5 steps to help avoid side pulling hazards hoisting-system

  • Make sure that all new crane and monorail systems are designed and installed by qualified material handling professionals.
  • Have existing overhead lifting equipment and lifting applications reviewed by a qualified person to ensure these systems are properly located to provide full hook coverage (without side pulling) for all locations where materials to be lifted are located.
  • Arrange for hoist and crane operator safety training of all personnel within your organization who may use overhead lifting equipment as well as all managers or supervisors who may direct others to use that equipment.
  • Ask your overhead lifting equipment provider about the availability and functionality of devices such as overlay limit switches, rope guides and others equipment used to detect, prevent or reduce the damaging effects of unintended side pulling.
  • Consider using an adjustable lifting beam and counterweight to allow an off-center load to be lifted without creating side-pull on the hoist.

Reproduced with Permission from Columbus McKinnon. Original article here: http://blog.cmworks.com/crane-hoist-safety-dangers-side-pulling/ 

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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.

CM Expands Range of Synthetic Slings Attachments

CM-Attachments

Columbus McKinnon Corporation (NASDAQ: CMCO), a leading designer, manufacturer and marketer of motion control products, technologies and services for material handling, has expanded its portfolio of rigging attachments for synthetic slings to include CM Quick Connect HooksCM Flat Eye Rigging Hooks and a more comprehensive line of CM Weblok Assemblies.

“Columbus McKinnon is excited to offer a comprehensive line of American-made products to meet customer demand for safe and high-quality synthetic sling rigging attachments,” said Troy Raines, Global Chain and Rigging Product Engineering Manager. “We know customers are interested in protecting their investments and their people. We designed our rigging products to help them do just that, offering unique features that extend sling service life, while increasing operator safety and productivity.”

CM Quick Connect Hooks are a quick and easy way to add load attachment points to any synthetic sling by eliminating the need for additional hardware or assembly tools. Designed with a large, flat bearing surface and recessed area that together prevent the sling from bunching and shifting, Quick Connect Hooks allow synthetic slings to be used safely and at full capacity. In addition, to help ensure easy and proper rigging, Quick Connect Hooks are color coded to match common synthetic sling capacities.

CM Quick Connect Hooks
     Quick Connect Hooks

To promote longer sling life, CM Flat Eye Rigging Hooks provide a wide, smooth, load-bearing surface that won’t damage synthetic material. The flat eye opening also eliminates bunching and pinching of the synthetic sling to ensure it can be used at full capacity.

For maximum versatility, CM Weblok Assemblies allow for quick and safe sling attachment, whether you’re attaching chain and a master link to a synthetic sling or a synthetic sling to a synthetic sling. Available in two designs, including synthetic-to-attachment and synthetic-to-synthetic, CM Webloks feature either single or double load pin retention depending on your application’s safety requirements.

Learn more about these rigging attachements and read the original article here.
Order all your CM products 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 Twitter LinkedIn and Facebook for more news and upcoming events.

Columbus McKinnon Expands Hoist Offerings

CM-Hoist

SUPPLIER NEWS – Columbus McKinnon Corporation has expanded its offering of the unique CM Hurricane 360° hand chain hoist and introduces its new Yale® YK™ and Shaw-Box® SK™ electric wire rope hoists.

The CM Hurricane 360° Hand Chain Hoist

The unique Columbus McKinnon Hurricane 360° hand chain hoist to include new 15 and 20-ton

capacity units as well as a full line of army-type, integrated trolley models. Designed for versatility and safety, the CM Hurricane 360° features a patented 360-degree rotating hand chain cover that allows operators to lift and position loads from virtually any angle.

“Because of its unique design, the CM Hurricane is the ideal hand chain hoist when working in tight spaces, above the load, in drifting applications and when the operator needs to maintain a safe distance when handling a load,” said Andre Schon, Senior Global Product Manager – Manual Hoist Products. “Now, with the addition of higher-capacity units and integrated trolley models, we have made this one-of-a-kind hoist more versatile than ever.”

New army-type, integrated trolley CM Hurricane hoists feature a compact, low-headroom design that provides even more flexibility in applications with low ceilings or limited space. Available as plain or geared models, these trolley hoists have reduced side clearances an

d end approach to aid in maneuvering heavy loads in tight spaces. They can be easily adjusted to fit a wide range of beam widths and profiles and have trolley wheels designed for smooth rolling with pre-lubricated, encapsulated ball bearings.

Rugged, durable and easy to maintain, the CM Hurricane 360° is available in capacities ranging from 1/2 to 20 tons with standard lifts up to 30 feet. It is also backed by Columbus McKinnon’s lifetime guarantee. All models are now available with optional chain containers as well.

The Yale® YK™ and Shaw-Box® SK™ Electric Wire Rope Hoists

CM-Yale-YK-HR

The new Yale® YK™ and Shaw-Box® SK™ electric wire rope monorail hoists are German engineered and offer reliable operation, high efficiency and long life, and are competitively priced for the U.S. market.

The Yale YK and Shaw-Box SK are designed with safety in mind, incorporating standard safety features such as a block-operated limit switch, adjustable geared limit switch, motor temperature control and overload protection.

“The new YK and SK hoists feature a modular system that allows you to easily configure and design a hoist solution to your exact application needs,” said Carlos Bassa, global product manager, wire rope hoists. “With a wide range of lifting capacities from one to 10 tons and three frame sizes, these units can be used everywhere from equipment production lines to warehousing facilities.”

The Yale YK and Shaw-Box SK are ideal for applications with space limitations, featuring a low headroom trolley that can be used on monorail runways and single-girder overhead travelling cranes. Assembled in Wadesboro, North Carolina, with German-made components, the YK and SK have short lead times to meet tight deadlines.

Columbus McKinnon’s new YK and SK hoists are available through its Crane Solutions Group, which is dedicated to serving the company’s partners in the crane industry. With the acquisition of STAHL CraneSystems in 2017, Columbus McKinnon is able to leverage the combined technologies of its Yale, Shaw-Box and STAHL product lines to offer the most comprehensive wire rope hoist and crane component portfolio available, while simplifying its product offering for ease of selection and purchase.

Learn more about the Yale YK and Shaw-Box SK electric wire rope hoists at www.cmworks.com

About Columbus McKinnon

Columbus McKinnon is a leading worldwide designer, manufacturer and marketer of motion control products, technologies, systems and services that efficiently and ergonomically move, lift, position and secure materials. Key products include hoists, cranes, actuators, rigging tools, light rail work stations and digital power and motion control systems. The company is focused on commercial and industrial applications that require the safety and quality provided by its superior design and engineering know-how. To learn more about the CM Hurricane 360°, the Yale YK, the Shaw-Box SK or any of their products, call Columbus McKinnon Channel Services at 800-888-0985 or visit www.cmworks.com.

Read 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 SLR, Hercules Machining & Millwright Services, Spartan Industrial Marine, Stellar 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 Twitter LinkedIn and Facebook for more news and upcoming events.