Whatsapp ID: +86 13532830851
Email ID
Wechat ID: jactonjackSkype ID: jactonjack
Screw Jacks,Gearboxes,Actuators,Lifting Systems Manufacturers


JTH Through Holes Screw Jacks

JTH Series Through Holes Screw Jack featuring a compact and versatile cubic housing. They are high quality engineering products for precise lifting, lowering and pivoting of loads, and are, under normal operation, maintenance free. In the absence of vibration load, they have self locking and precisely position loads, will hold loads without backdriving, and no need any brake mechanism or locking system. Can be mounted in any attitude. Generally maintenance free.

JTH Series Through Holes Screw Jack Features:
* Self locking lifting screw, precise positioning, and uniform speed. 
* Available in 6 sizes from JTH10 to JTH200.
* Static load capacity from 10 kN to 200 kN.
* Lifting screw diameter from 22 mm to 70 mm.
* Standard lifting 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 THREE gear ratios, they are High ratio, Medium ratio, Slow ratio. 
* Standard with 1-start lifting screw, custom 2-starts lifting screw which offers increased travel speed and require a brake or external locking device to hold position.
* Custom-made lifting screw diameter and pitch, gear ratios, and worm shaft sizes.
* Lifting 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.
* Can be applied either individually use or combined into a exactly synchronized lifting system, linked by connecting shafts, bevel gearboxes, motor adapters, limit switches, geared motor and couplings etc.
* Custom-made double clevis screw jack, anti-backlash screw jack.
* Can be used as alternatives to hydraulic and pneumatic systems. 
JTH Series Through Holes Screw Jack Materials:
* Housing(Gearbox): Ductile Iron.
* Lifting Screw: Carbon steel #45. Custom stainless steel.
* Worm(Input Shaft): Hardened worm, carbon steel #45. Custom stainless steel.
* Worm Gear(Wheel): High strength bronze.
* Travelling Nut and Safety Nut: High strength bronze.

JTH Series Through Holes Screw Jack Specifications: