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SJB50 Ball Hand Wheel Screw Jack

SJB50 Ball Hand Wheel Screw Jack

SJB50 Ball Screw Jack Details information. 1. Jack Model: SJB50 2. Screw Diam.: 40mm 3. Lead : 10mm . Custom high lead 4. Max load capacity: 50KN 5. Gear Ratio: 1/7, 1/28. Custom other worm gear ratios. 6. Top End: top plate, clevis end, threaded end, plain end , spherical hinge, forked head. 7:...

Products Details

SJB50 Ball Screw Jack Details information. 

1. Jack Model: SJB50

2. Screw Diam.: 40mm 

3. Lead : 10mm . Custom high lead 

4. Max load capacity: 50KN

5. Gear Ratio: 1/7, 1/28. Custom other worm gear ratios.

6. Top End: top plate, clevis end, threaded end, plain end , spherical hinge, forked head. 

7: Translating screw, rotating screw, keyed screw configurations in upright or inverted mounting orientation.

8. Power Source: Electric Driven,Manual Operated or Both Are Available

9. Screw Type: Ball screw 

10: Individually or multiple ball screw jack lift system arrangements are available.

11: High speed, high precision, high efficiency, high duty cycle, high performance, high frequency operation, low drive torque, long service life.

SJB50 Ball Screw Jack Specifications:

Maximum Load ( KN )

50

Starting Efficiency ( % )

H

33

Lifting Screw Diam.( mm )

40

L

20

Lead ( mm )

10

Working Efficiency ( % ) at 1500rpm

H

59

Gear Ratio

H

1/7

L

39

L

1/28

Housing Material

Spheroidal graphite iron

Permissible Max. Power ( Kw )

H

2.1

L

1.1

Max starting torque full load ( N.m )

H

34.4

Weight without stroke ( Kg )

23

L

14.6

Weight per 100mm screw and protective tube( Kg )

 1.6


SJB50 Screw Jack Lifting Load( KN )


Speed

(rpm)


Lifting Speed

(mm/s)

50KN

35KN

H:1/7

L:1/28

H:1/7

L:1/28

H:1/7

L:1/28

N.m

KW

N.m

KW

N.m

KW

N.m

KW

1400

33.4

8.3

19.29

2.83

7.30

1.07

13.50

1.98

5.11

0.75

900

21.4

5.4

20.69

1.95

7.49

0.71

14.48

1.36

5.24

0.49

700

16.7

4.2

21.47

1.57

7.69

0.56

15.03

1.10

5.38

0.369

500

11.9

3.0

22.76

1.19

7.90

0.41

15.93

0.83

5.53

0.29

300

7.1

1.8

23.71

0.74

8.62

0.27

16.60

0.52

6.04

0.19

100

2.4

0.6

25.29

0.26

9.48

0.10

17.70

0.19

6.64

0.07

50

1.2

0.3

26.47

0.14

10.16

0.05

18.53

0.10

7.11

0.04


Speed

(rpm)


Lifting Speed

(mm/s)

25KN

10KN

H:1/7

L:1/28

H:1/7

L:1/28

H:1/7

L:1/28

N.m

KW

N.m

KW

N.m

KW

N.m

KW

1400

33.4

8.3

9.64

1.414

3.648

0.535

3.858

0.566

1.459

0.214

900

21.4

5.4

10.35

0.975

3.774

0.353

4.138

0.390

1.497

0.141

700

16.7

4.2

10.74

0.787

3.845

0.282

4.294

0.315

1.538

0.113

500

11.9

3.0

11.38

0.596

3.952

0.207

4.552

0.238

1.581

0.083

300

7.1

1.8

11.85

0.372

4.311

0.135

4.742

0.149

1.724

0.054

100

2.4

0.6

12.64

0.132

4.742

0.050

5.058

0.053

1.897

0.020

50

1.2

0.3

13.23

0.069

5.081

0.027

5.293

0.028

2.032

0.011

SJB50 Ball Screw Jack Dimensions.

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1: Jack Brand

SJB: "SIJIE" brand Ball screw jack

2: Load Capacity

50 :  Max. Load capacity is 50KN

Before selecting 50, please check above SJB50 ball 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:                                       

SJB50 ball screw jack gear ratio includes 1/7, 1/28

1/7: Fast speed, 1.43mm travel length per full turn of worm shaft.                 

1/28: Low speed, 0.36 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

Hot Tags: SJB50 Ball Hand Wheel Screw Jack, supplier China, manufacturers, factory, customized
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