Below-the-Hook Parts

When a below-the-hook lifting device fails inspection or shows signs of fatigue, the crane sitting above it is only as safe as the attachment hanging from the hook. Sourcing the right below-the-hook parts quickly is the difference between a brief swap-out and a load that never moves. Ace World Companies manufactures and supplies below-the-hook parts, hook block components, spreader beam parts, lifting clamp components, rigging hardware, and replacement components for every category of lifting attachment used on overhead bridge cranes, gantry cranes, jib cranes, and specialty material handling systems. 

Our team has engineered, built, and serviced below-the-hook lifting devices for steel mills, aerospace plants, shipyards, paper mills, and heavy manufacturing facilities since 1987, and that experience drives how we approach every below-the-hook parts request, from a single replacement shackle pin to a full rebuild of a coil lifter rotator assembly.

Replacement Parts for Every Class of Below-the-Hook Lifting Device

A below-the-hook lifting device is the last piece of equipment between the crane and the load, which means every component carries the full rated capacity of the lift. Worn pins, cracked welds, fatigued clamp cams, leaking vacuum seals, and tired rotators all compromise that connection. ACE supplies OEM-grade and custom-engineered replacement components for the full range of lifting attachments and rigging assemblies in service today, with capacities from light-duty rigging through 500-ton specialty lifters.

Our below-the-hook lifting devices parts program covers nearly every category of attachment hardware:

• Spreader beam parts, including end fittings, sling attachment points, adjustable bail assemblies, structural beam sections, load pins, and connection hardware for adjustable and fixed-length spreader beam parts applications
• Hook assembly parts, including hook shanks, hook nuts, thrust bearings, swivel assemblies, latches, latch kits, and complete hook assembly parts for single-prong, ramshorn, and sister hook configurations
• Lifting beam parts such as structural plate sections, bail and bail pin assemblies, adjustable load attachment lugs, sheave assemblies, and replacement load blocks tied into our load blocks and lifting beams program
• Lifting clamp parts, including replacement cams, pivot pins, springs, locking mechanisms, jaw inserts, and structural body components for vertical plate clamps, horizontal plate clamps, beam clamps, and lifting clamp parts kits
• Coil lifter parts covering tongs, rotator gears and motors, coil grippers, hydraulic and electric drive components, and the structural and bearing components that keep coil handling systems in service
• Vacuum lifter components, including vacuum pads, gaskets and seals, pumps, vacuum gauges, check valves, manifolds, and electrical control components for pad-style and reservoir-style vacuum lifters
• Rigging hardware such as shackles, master links, eye nuts, eye bolts, swivel hoist rings, turnbuckles, wire rope slings, chain slings, and synthetic sling end fittings
• Crane hook components, including replacement hook bodies, trunnion assemblies, bearings, side plates, sheave pins, and equalizer hardware for traveling and rotating hook block assemblies

If you have a part number, a stamped capacity rating, a set of dimensions, or even a photograph of the worn lifter, our sales engineers can work from that information to source or build the correct crane lifting attachments and replacement components for your application. Reference photos of our below-the-hook equipment, including motorized bottom blocks, sister hooks, and power rotating load blocks, are available in the below-the-hook gallery for users who want to identify similar configurations before submitting a parts request.

Custom-Engineered Below-the-Hook Attachment Hardware

Many of the lifting device components that arrive at our shop were originally built for a single application that no longer matches the loads being handled. Production lines change, coil widths shift, plate thicknesses grow, and the lifter that worked in 2005 cannot hold the part running through the press today. Our engineering team designs custom below-the-hook attachments and replacement hardware that match new load profiles, integrate with existing crane hook configurations, and meet ASME B30.20 and BTH-1 design criteria. That capability is especially valuable when an obsolete OEM lifter needs to be brought back into service or when a one-off lifting device needs an entirely new clamp, beam, or pad assembly engineered around the original frame.

This same engineering capability supports broader crane modernization services projects, where a lifter rebuild often runs in parallel with hoist, controls, or electric wire rope hoists upgrades on the same crane.

Below-the-Hook Parts Compatible With Any Crane System

Our crane replacement parts ship to facilities running cranes built by ACE and by virtually every other major manufacturer. Our parts and engineering teams routinely supply replacement components for:

• Single-girder and double-girder overhead bridge crane installations
• Bridges, runways, and travel systems tied into end trucks for top-running and underhung configurations
• Heavy-duty applications using floor-level transfer cars paired with overhead lifting attachments
• Mechanical drive trains feeding rotating lifters and tilting beams through our power transmission program
• Electrical and hydraulic control circuits for powered lifters, supported by our controls capabilities

Our parts division supports the industries we serve every day, including steel, aluminum, aerospace, defense, automotive, paper, energy, and general heavy manufacturing.

Why Plants Source Below-the-Hook Parts From ACE World Companies

• American-made manufacturing. Over 90% of our rigging hardware and below-the-hook components are made in the USA at our facilities, which protects lead times and quality.
• ISO 9001:2015 certified. Every part moves through a documented quality system, with traceability from raw material through final inspection.
• In-house engineering. Our design team can reverse-engineer obsolete lifters, redesign load paths for new applications, and supply ASME-compliant documentation with each component.
• Fast turnaround. Common wear items are stocked, and custom-engineered parts move through our shop on accelerated schedules when downtime is on the line.
• Compatibility with existing systems. We match dimensions, load ratings, mounting patterns, and electrical interfaces so replacement components integrate cleanly into the lifter already in service.
• Technical support. Sales engineers and field technicians help diagnose worn components, verify part numbers, and confirm specifications before the order ships.

Request a Quote for Below-the-Hook Parts

Send us a part number, a capacity rating, a set of dimensions, or a description of the lifting device that needs service. Our team will confirm the specification, check availability, and provide a quote, usually the same day. For active downtime situations, call 800-431-4223 and ask for parts, or email sales@aceworldcompanies.com.

Ready to discuss a custom lifter rebuild, a modernization project, or a fleet-wide replacement program? Contact the ACE World Companies team and we will route your inquiry to the right engineer.