SJ-50T Worm Screw Jack Detailed Information:
1. Jack Model: SJ-50T 
2. Lifting Screw Diam.: 90 mm 
3. Screw Pitch: 14 mm 
4: Static Load Capacity: Max 50 tons
5: Dynamic load Capacity: Max 11 tons
6. Gear Ratio: 1/7 ,1/14 ,1/28
7. Lifting Speed: 2.5mm/s-50mm/s
8. Max Input: 1500 rpm 
9. Screw Type: Trapezoidal Screw 
10. Travel Stroke: No standard stroke, all stroke is processed according customers requirements. 
11. Screw Top End: top plate, clevis end, threaded end, plain end 
12. Power Source:  Manual operation, Electric operation
13: : Individually or multiple screw jack lift system arrangements are available.

SJ-50T Worm Screw Jack Pictures:



SJ-50T Worm Screw Jack Specification:


SJ-50T Worm Screw Jack Dimensions:




SJ-50T Worm Screw Jack ordering information



1: Jack Brand
SJ : "SIJIE" brand screw jack

2: Load Capacity
50T: 50 ton static load
Before selecting 50T, please check above SJ-50T Worm screw jack specifications.

3: Screw Configuration & Mounting Orientation
US: Upright translating screw          UK: Upright keyed screw                 UR: Upright rotating screw
IS: Inverted translating screw         IK: Inverted keyed screw                 IR: Inverted rotating screw
Note:  US,IS(Screw rotation,do axial motion)   UK,IK(Screw anti-rotation,do axial motion)  UR,IR(Screw fixed rotation,traveling nut do axial motion)

4: Screw Top End


5: Worm Shaft Input Types
A: left side worm shaft input.              
B: right side worm shaft input.             
C: double worm shaft input.
M1: left side motor flange direct input.                                       
M2: right side motor flange direct input. 
M3: left side motor flange direct input, right side worm shaft input.                  
M4: right side motor flange direct input, left side worm shaft input.


6: Gear Ratio
SJ-50T jack gear ratios include 1/7, 1/14, 1/28.
1/7 : Fast speed,2mm travel length per full turn of worm shaft.                                     
1/14: Middle speed, 1mm travel length per full turn of worm shaft. 
1/28: Low speed, 0.5 mm travel length per full turn of worm shaft.  

7: Travel Stroke


8:  Accessories
N: Standard Jack, No additional accessories
P: Steel Cover
R: Rubber Bellow
Y: Hand Wheel
Other accessories, please check below picture