Profile: J L T Clamps produces heavy-duty commercial grade clamping systems. Our clamping machines are specifically designed to increase the production and quality for the custom cabinet worker. We offer pneumatic clamps & panel clamps, production rotating door clamps and buddy system corbo clamps. Our miter door clamps are designed with heavy duty pneumatic diaphragm cylinders and high quality dial pressure regulator. We deal with plate, Redi, roller and door tile spreaders.