Miniature Hand Crank Manual Screw Jack With Micro 3 Shaft Gearbox 1:1 Ratio For Spray Infeed Sweep Conveyor Systems Height Adjustment Like beverage can, bottle, case and pallet conveyor systems for height adjustment. Utilizing many pieces 2.5kN, 5kN or 10kN miniature worm gear screw jacks combined with miniature miter gearboxes for elevation washing tanks or spray infeed sweeps. 1. Manual miniature worm gear screw jacks model JTC2.5-IS-100-H-II-C-HW, lifting screw sizes Tr16x4, 2.5kN load capacity, inverted translating screw, 100mm stroke, high gear ratio 4:1, clevis end, double input worm shaft, additional hand wheels/crank for manual operation. 2. Manual miniature worm gear screw jacks model JTC5-IS-100-H-II-C-HW, lifting screw sizes Tr18x4, 5kN load capacity, inverted translating screw, 100mm stroke, high gear ratio 4:1, clevis end, double input worm shaft, additional hand wheels/crank for manual operation. 3. Manual miniature worm gear screw jacks model JTC10-IS-100-H-II-C-HW, lifting screw sizes Tr20x4, 10kN load capacity, inverted translating screw, 100mm stroke, high gear ratio 4:1, clevis end, double input worm shaft, additional hand wheels/crank for manual operation.