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Acme screw electric motor worm gear screw jack

Acme screw electric motor worm gear screw jack

SWL screw jack is composed of a worm gear reducer and a lifting screw, and its deceleration component is a worm drive, which uses the worm to drive the worm gear to achieve deceleration. The center of the worm gear is an internal thread structure, which is equivalent to the nut of the lifting screw and matches the lifting screw.

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SWL screw jack is composed of a worm gear reducer and a lifting screw, and its deceleration component is a worm drive, which uses the worm to drive the worm gear to achieve deceleration. The center of the worm gear is an internal thread structure, which is equivalent to the nut of the lifting screw and matches the lifting screw.

The drive modes of the screw jack include manual drive, motor drive, and geared motor integrated drive. Motor drives include AC motors, stepper motors, servo motors, etc., which are connected with screw jack through flanges.  Shengjie’s Screw jacks with motors are widely used in various electric lifting platforms. In addition, the screw can be installed upwards or downwards according to different application requirements.

Product structure:

product components of worm gear screw jack

A. Hexagon socket head screw
B. Input cover
C. Oil seal
D. Oil drain plug
E. Worm gear box
F. Oil seal
G. Worm
H. Key
I. Bearings
J. Asbestos gasket
K. Grease nipples
L. Hexagon socket head screws
M. Output cover
N. Asbestos gasket
O. Bearings
P. Worm gear
Q. Screw

Main types of screw jack:

screw jack with hand wheel

 

screw jack with hand wheel

screw jack with motor

screw jack with motor

screw can be installed reversely

screw can be installed reversely

Product components:

Worm gear high quality 9-4 copper
Worm 20CrMnTi
Screw material 45# steel finishing
Housing material HT250 cast iron
Bearing high load bearing,
Chinese famous brand or C&U
Oil seal Chinese famous brand or NAK or SKF

Specifications:

Model SWL1,SWL2.5,SWL5,SWL10,SWL15,SWL20,SWL25,SWL35,SWL100,SWL150
Actual loading capacity 100-200kgs, 200-600kgs, 600-1500kgs, 1500-4000kgs…
Ratio Ordinary (P) Slow (M)
Structural type Type 1 – the screw moves in both rotation and axial direction Type 2 – the screw rotates while nut on the screw moves in an axial direction
Assembly type Type A – screw (or nut) moves upward Type B – screw (or nut) moves down
Screw head type – Type Ⅰ,head cylindrical – Type Ⅰ,head cylindrical
– Type Ⅱ,head flange
– Type Ⅲ,head thread – Type Ⅲ,head thread
– Type Ⅳ ,head flat head
Protection of screw rod – (basic type) – (basic type)
– F (Anti-rotation type ) – Z (Type with protection shield)
– Z (Type with protection shield)

Parameters:

Model SWL2.5 SWL5   SWL10/15  SWL20 SWL25 SWL35 SWL50 SWL100 SWL120
Max lifting load(Kn) 25 50 100/150 200 250 350 500 1000 1200
Screw diameter*
thread
dimension(mm)
Tr30*6 Tr40*7 Tr58×12 Tr65*12  Tr90*16  Tr110*18 Tr120*20 Tr160*23 Tr180*25
Worm Ratio P 6:1 6:1 7:1 8:1 10:1 10:1 10:1 12:1 12:1
M 24:1 24:1 23:1 24:1 32:1 32:1 32:1 36:1 36:1
Stroke for one input turn
(mm)
P 1.0 1.167 1.565 1.5 1.5 1.69 1.87 1.92 2.083
M 0.250 0.292 0.5 0.5 0.5 0.56 0.625 0.638 0.694
Max permissible power(kW) 1.45 2.59 3.47 4.02 5.38 13.06 13.9 28.5 62
Weight per 100mm
screw & protective tube(kg)
0.45 0.82 1.67 2.15 4.15 5.20 7.45 13.6 17.3

Model selection guide:

step1: select the corresponding model according to your load capacity requirements,

step2: confirm the reduction ratio: 1/6, 1/12, or 1/24. If you need a special speed ratio, please contact our sales team.

step3: determine the head form of the screw, there are cyclinder type, nut type, flange type, thread type, flat head type for your option.

step4: confirm the screw length or stroke you need. The default stroke is 500mm, the screw length can be customized according to different needs.

step5: confirm the accessories you need, such as matching motors, hand wheels, protection tube for screw, dust cover, anti-rotation functions, nuts, etc.

Please contact us freely if you have specific requirements.

View Dimensions of SWLD screw jack, making sure the model is suitable for your installation space.

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Add: Chunguang Village, Yipeng Street, Xiaoshan, Hangzhou, Zhejiang, China

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