Project Description

Motorized worm gear machine screw jack actuators

machine screw jack upright rotating

machine screw jack upright rotating

machine screw jack upright translating

machine screw jack upright translating

machine screw jack inverted rotating

machine screw jack inverted rotating

machine screw jack inverted translating

This motorized worm gear machine screw jack offers positive mechanical action, precise positioning, and uniform lifting speeds. The payloads from 1 ton to 120 ton.  A total of 9 sizes are available, each in a traveling nut version and a basic screw translating version.

  • Self-locking under static conditions
  • Option: Anti-rotation, anti-backlash, safety nut, left-hand screw threads
  • Standard and custom end fittings, mounting options, and drive shaft
  • This machine jack uses acme screw, typically used to move heavy loads in low-duty-cycle setups and low-speed applications.
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Machine Jack ModelSWL1SWL2.5SWL5SWL10/15SWL20
(1 ton)(2.5 ton)(5 ton)(10/15 ton)(20 ton)
Max. Lifting Force(  KN )102550100/150200
Max. Pulling Force( KN )10255099166
Lift Screw( mm )Tr24×4Tr30×6Tr40×7Tr58×12Tr65×12
Gear Ratio ( high )1/61/61/61/81/8
Travel length(mm)
per full turn of worm Shaft ( H )
0.6711.1671.5651.5
Efficiency % ( H )2323212321
Gear Ratio ( Low )1/241/241/241/241/24
Travel length(mm)per full turn of worm Shaft ( L )0.170.250.2920.50.5
Efficiency % ( L )1414121513
Max. Length of lifting screw (mm) when tensile force15001500200025003000
Max. Permissible power( KW )0.551.452.593.474.02
Lubricant ( kg )0.10.10.250.50.75
Weight without stroke( kg )2.57.316.22536
Weight of screw ( kg )per 100mm stroke0.250.450.821.672.15
Max. Permissible power is under the conditions that ambient temperature 20 degree c , duty cycle 20%h and input speed 1500rpm

Machine Jack ModelSWL25SWL35SWL50SWL100SWL120
(25 ton)(35 ton) (50 ton)(100 ton)(120 ton)
Max. Lifting Force(  KN )25035050010001200
Max. Pulling Force( KN )25035050010001200
Lift Screw( mm )Tr90×16Tr100×18Tr120×20Tr160×23Tr180×25
Gear Ratio ( high )3/323/323/321/121/12
Travel length(mm)
per full turn of worm Shaft ( H )
1.51.691.871.922.083
Efficiency % ( H )1918151312
Gear Ratio ( Low )1/321/321/321/361/36
Travel length(mm)per full turn of worm Shaft ( L )0.50.560.6250.6380.694
Efficiency % ( L )111111108
Max. Length of lifting screw (mm) when tensile force35004000550065007000
Max. Permissible power( KW )5.3813.0613.928.562
Lubricant ( kg )1.11.92.22.52.5
Weight without stroke( kg )70.58742010101350
Weight of screw ( kg )per 100mm stroke4.155.27.4513.617.3
Max. Permissible power is under the conditions that ambient temperature 20 degree c , duty cycle 20%h and input speed 1500rpm

SWL Series machine screw jacks Ordering Guide Information

SWL – 1T  –  US   T  –    C –    1/6  –  300   –  Y
                        2        3        4         5          6          7

1: Machine Jacks Model

SWL 1T, SWL2.5, SWL5, SWL10, SWL20, SWL25, SWL35, SWL50, SWL100, SWL120.

2: 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)

SJW Screw Configuration & Mounting Orientation

3: Screw Top End

Screw jack Top End

4:  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.

Worm Shaft Input Types

5: Gear Ratio

  • SWL1: 1/6, 1/24.
  • SWL2.5: 1/6, 1/24.
  • SWL5: 1/6, 1/24.
  • SWL10: 3/23, 1/23.
  • SWL20: 1/8, 1/24.
  • SWL25: 3/32, 1/32
  • SWL35: 3/32, 1/32
  • SWL50: 3/32, 1/32
  • SWL100: 1/12, 1/36
  • SJWL120: 1/12, 1/36.

6: Travel Stroke

SJW machine screw jack travel stroke

 

7:  Accessories

N: Standard Jack, No additional accessories
P: Protective Tube
R: Dust Cover
Y: Hand Wheel
Other accessories,please check below picture

screw jack accessories onescrew jack accessories twoscrew jack accessories threescrew jack accessories four

We have been supplied machine screw jacks, machine screw actuators and lifting systems since 2008.

  • Has the unique ability to provide complete jack system lifting solutions with 3D models.
  • Providing “turn key” solutions with the optimal balance of performance, life, and cost.
  • Wide application experience in diverse industries including transportation, packaging, factory automation, material handling, printing, automotive, machine tool, paper, steel, food and beverage etc.

You can trust us on high quality, on-time delivery, controlled costs and reduced risk. Let us help you.