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