Four Point Adjustable Beams (Lifting & Spreader Frames)

Industrial equipment lifting frames interface directly between the crane hook and large-format payloads. Unlike standard two-point linear lifting beams, a four-point frame distributes weight symmetrically across a rectangular footprint. This mechanical layout prevents flexible loads from sagging, minimizes the risk of structural buckling, and protects wide components from severe stress concentrations during the pick.

Holloway Houston Inc. (HHI) stocks the Peerless FPAB Series (Four Point Adjustable Beam). Designed to adapt dynamically to varying load footprints, this catalog covers multiple capacity configurations, scaling from a highly versatile 3-ton utility model up to a heavy-duty 10-ton industrial lifting frame.

Technical Features of the Peerless FPAB Series

Our inventory features the complete Peerless FPAB product line, a preferred choice for engineering departments requiring high versatility from a single lifting device.

• Multi-Axis Dimension Adjustability : The core engineering value of the FPAB series lies in its telescoping design. The inner steel structural beams slide smoothly inside the outer housing sleeves, allowing operators to adjust both the length and width axes independently. This enables a single piece of hardware to conform precisely to different payload shapes between lift cycles.
• Low Headroom Profiling :The FPAB operates as a unified lifting beam that links directly to the primary crane hook via a central top connection. By removing the need for a tall, high-angle wire rope or chain bridle above the frame, this design minimizes the vertical clearance required for operation, making it ideal for indoor facilities with restricted hook height.

Sizing and Capacity Guide

Selecting an adjustable lifting frame requires matching the maximum Working Load Limit (WLL) to the payload mass while verifying that the length and width adjustments span the pickup points on the material.

• 3-Ton Capacity Series (#FPAB-3-84/60) :Rated for a Working Load Limit of 3 tons (6,613.80 lbs). This unit adjusts to a maximum dimensional footprint of 84 inches by 60 inches. It acts as the ideal choice for light industrial assemblies, mid-size machining blocks, and electrical skid enclosures.
• 5-Ton Capacity Series (#FPAB-5-120/96) : Rated for a Working Load Limit of 5 tons (11,023 lbs). This model expands to maximum outer dimensions of 120 inches by 96 inches. It handles everyday duties in factory maintenance, steel fabrication yards, and tool-and-die positioning.
• 10-Ton Capacity Series (#FPAB-10-144/96) : Rated for a Working Load Limit of 10 tons (22,046 lbs). This heavy-capacity framework adjusts to spans up to 144 inches by 96 inches. It is built specifically to move high-tonnage structural steel sub-assemblies, heavy generators, and military equipment containers.

Applications by Industry

• Industrial Manufacturing: Moving large metal enclosures, server racks, and pre-assembled fluid processing skids without scratching or bending the outer metal panels.
• Tool & Die Facilities : Safely rotating and positioning massive automotive stamping dies or plastic injection molds that utilize four-point attachment pins.
• Logistics & Material Shipping : Transporting un-palletized rectangular cargo, large wooden export crates, or modular housing panels from assembly lines to flatbed trailers.
• Power Generation & Utilities : Maneuvering heavy transformers, pump stations, and backup generator modules onto concrete foundations.

Safety, Compliance, and Rigging Awareness

Below-the-hook frames fall under the rigorous operational standards of ASME B30.20.

1. Symmetric Arm Adjustments : Operators must verify that the telescoping arms extend equally on opposing sides. Extending one side further than the other shifts the load center away from the primary crane hook connection, resulting in a dangerous, unbalanced tilt upon lifting.
2. Vertical Drop Lines Only : The lower rigging lines (slings or chains) extending from the four corners of the beam down to the payload must remain strictly vertical (90 degrees). Forcing the lower lines to pull at an angle introduces severe, un-engineered bending forces into the telescoping frame.
3. Pin Engagement Verification : The adjustable arms utilize structural cross-pins to lock the dimensions in place. Operators must verify that all locking pins are fully engaged and secured with their respective retaining hardware before initiating tension.
4. Visual Structural Inspections : Per ASME B30.20, check the beam before every shift. Look for cracked paint along structural welds, permanent twisting of the steel framework, or oval elongation of the corner rigging holes. Deformed components indicate structural compromise and require immediate removal from service.

Disclaimer

Four-point adjustable beams are load-bearing below-the-hook lifting devices. Proper application follows ASME B30.20 standards. The information below provides general product awareness and does not replace qualified engineering judgment or site-specific lift planning.