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Screw Jacks,Gearboxes,Actuators,Lifting Systems Manufacturers


JSS Stainless Steel Screw Jack

Stainless steel screw jacks are specifically designed for positioning and lifting applications that are located in wet, corrosive and harsh environments. Models JSS-1T, JSS-2.5T, JSS-5T, JSS-10T, JSS-15T, JSS-20T. These stainless steel screw jacks use a stainless steel input worm shaft with a high strength bronze worm gear. Load capacities for stainless steel screw jacks range from 1 ton to 35 ton. Translating, anti-rotation (keyed) and rotating screw configurations, upright and inverted screw design types, 3 gear ratios and single screw lead as standard, special custom designs available.

All exposed surfaces and components are manufactured from stainless steel 304 materials.
1. Lifting screw: stainless steel 304
2. Input worm shaft: stainless steel 304
3. Worm gear or travelling nut: bronze
4. Housing: stainless steel 304
5. Bearings: bearing steel as standard. If underwater application, required stainless steel 304 bearing
6. Covers of input worm shaft: stainless steel 304
7. Top covers of housing: stainless steel 304
8. Protective tube: stainless steel 304
9. Locking screws: stainless steel 304
10. Lifting screw ends (top plate, clevis end, threaded end, plain end, fork end or rod end): stainless steel 304
11. Motor flanges: stainless steel 304

Stainless Steel Screw Jacks Specifications: