Sample Part Number Of Stainless Steel Screw Jack

1. Jack Series
JSS: JSS series stainless steel screw jack

2. Lifting Capacity
10T: maximum static lifting capacity 10 ton.
For JSS series stainless steel screw jacks, available static lifting capacities 1 ton, 2.5 ton, 5 ton, 10 ton, 15 ton, 20 ton, 25 ton and 35 ton.
Before selecting lifting capacities, please check corresponding models technical parameter table.

3. Screw Configurations & 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
* Important Note: The lifting screw of a translating screw jack must be attached to the guided load which prevents the lifting screw from rotating. To add the linear guides, rails or rolls are recommended.
* Important Note: If your application involves a load which is unattached, unguided or the load is free to rotate and not translate, then a keyed anti-rotation screw jack(key and keyway) are required to prevent lifting screw rotation (not recommended).


4. Travel Length
900, means exact travel length 900mm. All travel length of JSS series stainless steel screw jacks are customized, the travel length available range from 5mm to 7500mm.


5. Worm Gear Ratio
There are two worm gear ratios for every JSS series stainless steel screw jacks models.
They are H: high speed and L: slow speed
H: High gear ratios, 1mm travel length per one turn of input shaft.                               
L: Low gear ratios, 0.25mm travel length per one turn of input shaft.        
Customized various of worm gear ratios for JSS series stainless steel screw jacks models. 

6. Lift Screw End Fittings
All JSS series stainless steel screw jacks models lifting screw end fittings includes top plate (I), clevis end (II), plain end(III) and threaded end (IV). Custom made spherical hinge, forked head etc. If special lifting screw end fitting needed, please send us the end fitting drawings, we will process them following the drawings.


7. Input Shaft(Worm) Types and Motor Adapter Types
A: left side input shaft(worm).              
B: right side input shaft(worm).        
C: double input shaft(worm).
M1: right side motor adapter, and left side input shaft(worm).                                       
M2: right side motor adapter. 
M3: left side motor adapter, right side input shaft(worm).                  
M4: left side motor adapter.


8. Accessories
JSS series stainless steel screw jacks with a comprehensive range of accessories like FC=Flex couplings, UJ=Universal joints, TUJ=Telescopic universal joints, CS=Connecting shafts, HW=Hand wheels, PB=Pillow blocks, FB=Flange blocks, RE=Rod ends, LSB=Linear shafts and bearings, LGB=Linear guides and bearings, TSC=Telescopic spring covers, BB=Bellows boot, PP=Protection tubes, TAP=Trunnion adapter plates, TMB=Trunnion mounting brackets, MF=Motor flanges, WGR=Worm gear speed reducers, HGR=Helical gear reducers, EM=Single phase or three phase induction motors, STM=Stepper motors, SEM=Servo motors, DCGM=DC geared motors, REN=Rotary encoders, LS=Travel limit switches, FIN=Frequency inverters, PIN=Position indicators, SN=Stop nuts, TN=Travel nuts, SNU=Safety nuts.


1. Input RPM should not exceed 1500 RPM.
2. Never exceed the JSS series stainless steel screw jacks static and dynamic capacity.
3. Never exceed the power listed in our JSS series stainless steel screw jacks specification tables. If the maximum power recommendation is exceeded, reduce the speed, use a larger capacity machine screw jacks, choose another screw jacks ratio, or consider a more efficient screw jack type such as a ball screw.