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The patented external shape design-unique rectangle fluted housing of the screw jack increases the heat-dissipation ability of the housing and extend the lifetime of the lubricant etc. The material of ductile cast iron raises the hardness and increase the efficiency and the wide application in low or high temperature environment of the housing. The design of the rectangle rear tube prevents the screw
from self-rotating and the safety nut offers a guarantee to the security of the screw jack and monitors the wear degree of the nut.The advanced manufacturing equipments and assembling technique ensures the high quality of the products, leading designing concept creates superior products featuring in the strong shock-load resistance, high duty cycle, low noise, long lifetime and small size.
Modularized combination enriches the matches of the products, the random combination between the actuator and the motor, and the special functional accessory provides thousands of choices to the customer.
Complete accessories: bellow, anti-backlash design, safety nut, ball screw, limit switch, overload clutch, potentiometer, encoder, brake, hand-wheel, mounting accessories. |
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Technical specification |
| Size |
SJA5 |
SJA10 |
SJA20 |
SJA50 |
SJA80 |
SJA100 |
SJA200 |
SJA300 |
| Max lifting load [kN] |
5 |
10 |
20 |
50 |
80 |
100 |
200 |
300 |
| Screw dia x pitch [mm] |
Tr18x4 |
Tr20x4 |
Tr30x6 |
Tr40x7 |
Tr50x8 |
Tr60x9 |
Tr80x12 |
Tr100x16 |
| Worm ratio |
V1 |
1:4 |
1:4 |
1:6 |
1:7 |
1:8 |
1:8 |
1:8.75 |
1:10.25 |
| L1 |
1:16 |
1:16 |
1:24 |
1:28 |
1:32 |
1:32 |
1:35 |
1:41 |
| Stroke for one input turn [mm] |
V1 |
1 |
1 |
1 |
1 |
1 |
1.125 |
1.371 |
1.56 |
| L1 |
0.25 |
0.25 |
0.25 |
0.25 |
0.25 |
0.281 |
0.343 |
0.39 |
| Max input power [kW] |
V1 |
0.30 |
0.57 |
0.14 |
2.2 |
2.5 |
3 |
4 |
7 |
| L1 |
0.15 |
0.27 |
0.55 |
1.1 |
1.5 |
2.2 |
3.5 |
5.5 |
| Max starting torque at full load [Nm] |
V1 |
4.2 |
8 |
18 |
48.5 |
75 |
100 |
265 |
460 |
| L1 |
1.5 |
3.1 |
6.7 |
20 |
30 |
41 |
106 |
180 |
| Starting efficiency |
V1 |
0.24 |
0.25 |
0.19 |
0.18 |
0.17 |
0.18 |
0.17 |
0.18 |
| L1 |
0.16 |
0.16 |
0.12 |
0.11 |
0.10 |
0.11 |
0.11 |
0.12 |
| Running efficiency at 1500rpm |
V1 |
0.34 |
0.35 |
0.33 |
0.32 |
0.31 |
0.33 |
0.33 |
0.33 |
| L1 |
0.25 |
0.25 |
0.24 |
0.23 |
0.22 |
0.23 |
0.22 |
0.23 |
| Torque without load [Nm] |
V1 |
0.11 |
0.29 |
0.4 |
0.84 |
1.85 |
2.1 |
2.8 |
3.8 |
| L1 |
0.09 |
0.18 |
0.29 |
0.59 |
1.12 |
1.4 |
2.1 |
3.1 |
| Housing material |
¡¡ |
Spheroidal graphite iron |
| Weight [kg] |
¡¡ |
3.2 |
5 |
8.5 |
21.5 |
36 |
58 |
75 |
110 |
Weight per 100mm
screw & protective tube [kg] |
0.36 |
0.50 |
0.75 |
1.52 |
2.44 |
3.02 |
4.5 |
6.8 |
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Feature£º
Linear speed£º up to 75mm/s
Input speed£º1800rpm
Stroke£ºup to 6.5m
Precise positioning :0.1mm/300mm£¬(If with anti-backlash,precision up to 0.04mm)
Uniform lifting speed
Quick, sure operation
Ballscrew and two,three or four starts threads available
Operating duty cycle up to 50% over a 10 minute period (normal:30%)
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| Travelling Screw S type£º |
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| Travelling screw models operate with screw being driven through the centre of the wormwheel, In operation, the screw does not rotate.Space must be available for the screw to protrude below the gearhousing when in a fully closed position |
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| Travelling nut R type£º |
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| Travelling nut models have the screw fixed to the wormwheel.In operation the screw rotates with the wormwheel, driving the nut up and down.overall dimensions for this combination remain fixed |
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| Motorized screw jack £º |
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| Every type screw jack can be adapted with Ac motor, gearmotor ,Dc motor, Servo motor,Step motor by Flange adaptor, please check the input power does not exceed to Max permissible operating power. |
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| Gearmotorized screw jack£º |
| Every model of screw jack can be connected with gearmotor adapted by flange adapter, please check the input torque does not exceed to Max torque at full load. |
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| CONTACT |
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Have questions? Want more information? Contact us-we'll be glad to help.
Contact |
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