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Uniclamp Hold Down Clamps

Caldwell Uniclamp Hold Down Clamps


WHD 1 and WHD 2 models are constructed of a high-strength aluminum bringing lightweight portability to workpiece positioning and clamping. 

Model 1 & 2 Lightweight Uniclamp™

Product Features

  • The UNICLAMPS™ have proved to be invaluable in transportation industry applications. These easy to position clamps are ideally suited for sheet and light plate fabrication. Lightweight UNICLAMPS™ are usedto secure “skin” materials to ribbed structures at aircraft, aerospace, bus, trailer, and truck manufacturing facilities.
  • The WHD-1 and WHD-2 UNICLAMPS™ feature capacities up to 1,200 lbs with clamp weights not exceeding 16 lbs! Features include round or rectangular vacuum pads, varying headframe widths, and varying height under the ram to suit special requirements.
  • UNICLAMPS™ disassemble in seconds without tools.
  • UNICLAMPS™ are not designed for lifting purposes. 

Model 18,24, 32 & 40 Middleweight Uniclamp™

Product Features

  • The UNICLAMPS™ have proved to be invaluable in transportation industry applications. These easy to position clamps are ideally suited for sheet and light plate fabrication. Lightweight UNICLAMPS™ are usedto secure “skin” materials to ribbed structures at aircraft, aerospace, bus, trailer, and truck manufacturing facilities.
  • The WHD-1 and WHD-2 UNICLAMPS™ feature capacities up to 1,200 lbs with clamp weights not exceeding 16 lbs! Features include round or rectangular vacuum pads, varying headframe widths, and varying height under the ram to suit special requirements.
  • UNICLAMPS™ disassemble in seconds without tools.
  • UNICLAMPS™ are not designed for lifting purposes. 

UNICLAMP™ Steel Constructed Models WHD-60, WHD-80 and WHD-100 answer industry’s heaviest application requirements. 

Model 60, 80 & 100 Heavyweight Uniclamp™

Product Features

  • Used in ship building, heavy plate fabrication, plant construction, bridge building, and large tank fabrication, these clamps bring incredible amounts of clamping power to bear on the largest of fabrication application requirements. These easy-to-use, portable, high-speed clamps draw oversize materials into position for welding, assembly, or alignment procedures.
  • The WHD-60, WHD-80, and WHD-100 welding and fabrication clamps, boast holding force up to 10,000 lbs. with a venturi vacuum generator and a hydraulic powered ram as standard features. Vacuum pads in round, rectangular, or square are available to suit custom requirements.
  • UNICLAMPS™ Work on rough textured or uneven surfaces.
  • UNICLAMPS™ are not designed for lifting purposes.