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Screw Jacks,Gearboxes,Actuators,Lifting Systems Manufacturers

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490KN(50T) Worm Screw Jacks

490KN(50T) Worm Screw Jacks Key Features
1. Maximum static load 490kN(50T).
2. Lifting screw sizes Tr 120x16. Customized stroke length.
3. Translating and Rotating Screw configurations, Anti-rotation (keyed) design option.
4. High ratio 10-2/3:1, Low ratio 32:1.
5. The 490kN(50T) Worm Screw Jacks can be connected together in systems so that multiple units can be operated and controlled together.  
6. Manual operation, Electric driven or both together. 


490KN(50T) Worm Screw Jacks Drawing Dimensions

Sample Part Number

JTM500 - US - 300 - H - II - C - PP
490KN(50T) Worm Screw Jacks Specifications

490KN(50T) Worm Screw Jacks Design and Configurations
* US: Upright translating screw.
* IS: Inverted translating screw.
UK: Upright keyed screw.
IK: Inverted keyed screw.
UR: Upright rotating screw with travel nut.
IR: Inverted rotating screw with travel nut.
490KN(50T) Worm Screw Jacks Stroke
Example: 300 mm stroke, lifting screw travels 300 mm, then we will make the lifting screw length=stroke+housing height+screw end length. All lifting screws stroke is made following your requirements. Special lifting screws design, please consult us!!
490KN(50T) Worm Screw Jacks Gear Ratios
* H: high gear ratio 10.667:1, lifting screw travels 1.5mm per turn of input shafts revolution.
* L: low gear ratio 32:1, lifting screw travels 0.5mm per turn of input shafts revolution.
Customized speical gear ratios, please consult us!!!
490KN(50T) Worm Screw Jacks Lifting Screw End Conditions
Standard lifting screw end conditions such as I - top plate, II - clevis end, IV - threaded end, III - plain end. Can make lifting screw ends following your required. Before ordering, please send us your special design drawing of lifting screw ends.
490KN(50T) Worm Screw Jacks Input Shaft Types and Motor Flange Types
Input Shaft Types
* A: left input shaft.
* B: right input shaft.
* C: double input shaft.

Motor Flange Types
* M1: double input, left input shaft + right motor adapter.
* M2: single input right motor adapter.
* M3: double input, right input shaft + left motor adapter.
* M4: single input left motor adapter.
490KN(50T) Worm Screw Jacks Accessories
Accessories such as protective tube, bellows boots, 3-phase motor, gear reducer, worm gear reducer, motor flange, hand wheel, bevel gearbox, travel limit switches, flexible coupling, connecting shaft, pillow blocks, flange blocks, screw stop nut, jack travelling nut or lifting nut, rod end bearing, safety nut, swivel plate, and trunnion adaptor etc.