Overview
Barron Equipment offers the Caldwell Model C Heavy Duty Four Inline Pad Vacuum Lift — a high-capacity load beam vacuum hoist with four pads arranged in a straight line for lifting long, narrow materials. With rated capacities from 3,200 lbs. to 6,000 lbs. and load beam lengths from 5 ft. to 20 ft., this inline four-pad vacuum lift provides the extended reach and multi-point grip needed to handle long stock that is too narrow for crossarm configurations.
Unlike crossarm vacuum lifters that spread pads across the width of a load, the four inline pad load beam places all four pads along the material's length on a single beam. This creates four evenly distributed contact points that keep long, narrow materials balanced, stable, and flat throughout the entire lift cycle — even on beams up to 20 ft. long.
When Four Inline Pads Are the Right Choice
Two inline pads work for shorter narrow materials. But as material length increases, two contact points may not provide enough grip distribution to keep the load stable. The four inline pad configuration doubles the number of suction points along the beam, creating a more secure grip over longer spans and adding redundancy that improves both handling safety and operator confidence.
Caldwell's sizing guideline for the Model C is that the material's width should not exceed 5 times the pad diameter. Within that constraint, the four pads spread evenly along beams up to 20 ft. to handle the longest narrow stock in your production flow. Slide valves allow individual pads to be isolated, so operators can run two, three, or four active pads depending on the material length.
Features and Benefits
The Caldwell heavy duty four inline pad vacuum lift is built for demanding industrial environments where long, narrow, heavy materials need to be moved reliably. Key features include:
- Four ball-mounted vacuum pads arranged inline on a single load beam for long, narrow material handling
- Rated capacities of 3,200 lbs., 4,000 lbs., and 6,000 lbs. — the highest in the Caldwell inline pad product line
- Pad flared diameters of 14-1/4 in., 16 in., and 19 in. matched to each capacity level
- UNIVAC-330 electric power pac or V-40 shop air (venturi) power options
- Standard load beam lengths of 5 ft., 6 ft., 8 ft., 10 ft., 12 ft., 15 ft., and 20 ft. — other sizes available through Barron
- Slide valves for manual isolation of individual pads, allowing 2, 3, or 4 active pads based on material length
- Brass fittings throughout for corrosion resistance
- Push-lock hose rated for 250 psi
- Spin-on muffler and filter for quick, tool-free replacement
The venturi models are notably lighter — ranging from 280 lbs. to 315 lbs. compared to 410–465 lbs. for electric models — making them practical for applications where minimizing hook load matters.
Applications
The heavy duty four inline pad vacuum lift is commonly used in facilities that process long, narrow, heavy materials on a regular basis. Typical applications include steel service centers handling long plate strips, flat bar, and channel stock, structural steel fabrication shops moving narrow beams and sections between processing stations, metal distribution centers picking long cut-to-length stock from storage racks, and any operation where materials exceed the span of a two-pad inline system but are too narrow for crossarm pads to engage side by side.
This vacuum lift connects to overhead cranes, bridge cranes, and gantry systems through a standard hook. With beam lengths reaching 20 ft. and capacities up to 6,000 lbs., it addresses the longest and heaviest narrow material handling tasks in the Caldwell UNIVAC lineup.
Selection Assistance
Selecting the right four inline pad vacuum lift involves matching your material's weight, width, length, and surface characteristics to the correct capacity, pad diameter, and beam length. The key sizing rule is that the material width should not exceed 5 times the pad diameter.
Barron Equipment's team can help evaluate your materials and recommend the optimal model. For shorter narrow materials that only need two contact points, Barron carries the twin pad inline vacuum lift. For wider materials that need pads spread across the surface, the full crossarm vacuum lifter line is available.
Contact Barron Equipment to request a quote or discuss the right inline vacuum lift for your long, narrow material handling needs.