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Screw Jacks,Gearboxes,Actuators,Lifting Systems Manufacturers


JTM-Series Worm Screw Jacks

JTM-Series Worm Screw Jacks are used in applications where linear motion is required. Lifting of any load, pushing or pulling of mechanical equipment, adjusting of tight clearances of mechanical parts can be done by screw jacks. Examples include: Platform lifts, Damper adjustments, Ergonomic lifts, Maintenance lifts, Roll adjustments, Earth Station Antennas, Drilling equipment, Solar Trackers, Conveyor adjustments, Packaging equipment, Gate adjustments, Dam adjustment, and Mine door openers. In the absence of vibration load, they have self locking and precisely position loads, will hold loads without backdriving. Can be mounted in any attitude. Generally maintenance free.

JTM-Series Worm Screw Jacks
 Key Features
* Self locking trapezoidal screw, precise positioning, and uniform speed. 
* Available in 6 sizes from JTM10 to JTM200. 
* Static load capacity from 10 kN to 200 kN. Custom 300 kN, 500 kN, 750 kN and 1000 kN.
* Trapezoidal trapezoidal diameter from 20 mm to 65 mm. Custom larger diameter screw.
* Standard trapezoidal screw maximum length 6000 mm, custom longer stroke.
* Upright or Inverted mounting. Available in tension or compression loads.
* Translating, Keyed for non-rotating, and Rotating designs.
* Each Model has TWO gear ratios, they are High ratio and Slow ratio.
* Standard with 1-start trapezoidal screw, custom 2-starts trapezoidal screw which offers increased travel speed and require a brake or external locking device to hold position.
* Custom-made trapezoidal screw diameter and pitch, gear ratios, and worm shaft sizes.
* Trapezoidal Screw Ends: top plate, clevis end, plain end, threaded end, fork end, rod end.
* Can be operated by manually operated or by electrical motor driven.
* Single unit use, or complete jacking system including gear motors, bevel gearboxes, connecting shafts and couplings for dual or multiple jack arrangements.
* Custom-made double clevis screw jack, anti-backlash screw jack.
* Can be used as alternatives to hydraulic and pneumatic systems. 

JTM-Series Worm Screw Jacks Specifications