Below the Hook Lifting Devices (BTH)

What Are Below the Hook Lifting Devices?

Below the hook lifting devices are tools that connect to a crane or hoist to safely grip, lift, and move a load. These lifters are designed to handle specific products and applications, providing control, protection, and orientation of the load during handling.

Examples include spreader beams, c-hooks, pallet lifters, and plate clamps. Each is designed with a purpose, and selecting the proper device for the job and knowing its limitations is critical for both safety and efficiency.

Common Types of Below the Hook Lifters

Spreader Beams

Spreader beams distribute load weight evenly across multiple points, helping prevent bending or damage to the product and lifting system.

C-Hooks

C-hooks are used to lift and transport coils of material. Their simple design allows for quick handling while maintaining load stability.

Pallet Lifters

Pallet lifters make it possible to handle palletized materials with an overhead crane, especially in areas where forklifts can’t be used effectively.

Plate Clamps

Plate clamps grip flat plates for vertical or horizontal lifting. They provide secure handling of sheet materials like steel or aluminum.

Safety Standards & Compliance (ASME B30.20 & BTH-1)

All below the hook lifting devices must meet specific safety and design standards. At ENSER, every lifter is designed and built in compliance with:

• ASME B30.20 – covering marking, construction, installation, inspection, testing, and operation.
• ASME BTH-1 – covering design requirements for structural and mechanical elements.

Following these standards ensures that equipment operates safely and consistently throughout its service life.

Choosing the Right Below the Hook Lifter

When determining the right device for an application, several factors must be considered:

• Load size, shape, and weight
• Lifting orientation and frequency of use
• Work environment, including space and safety conditions

A well-designed device will make lifting operations easier and safer, but proper use and regular inspection are equally important.

Why Work With ENSER

ENSER has more than 70 years of experience designing and building custom below the hook lifting devices for a wide range of industries. Our engineers combine practical design with advanced tools such as FEA analysis to verify performance and reduce weight without compromising safety.

In addition to custom lifters, ENSER provides complete turnkey engineering services, staffing solutions, and manufacturing support. Our team works directly with clients to evaluate needs and deliver cost-effective solutions that meet project requirements.

For more information on how we can support your next project, contact ENSER or call us at (877) 367-3770.