Aluminum Handwheel is a convenient solution for hand wheel manual screw jack or light load screw jack system. Aluminum Handwheel with folding handle directly coupled with screw jack worm shaft, only suitable self lock screw jack with load capacities 0.25 ton, 0.5 ton, 1 ton, 2 ton, 2.5 ton, 5 ton. The bigger load capacities screw jack with manual operation, must use the cast iron handwheel for turning. Aluminum Handwheel are available in a range of diameters such as 100mm, 125mm, 160mm, 200mm. For smallest jacks, lobe knob is available too. Note: Aluminum Handwheel do not include a brake and therefore can not be used with ball screw jacks.