If you looking for one of the best sjb20 ball screw jack manufacturers or a such supplier in China, equipped with one professional factory, Sijie Industrial Co.,Ltd is always at your service, we are able to offer you customized sjb20 ball screw jack products.

SJB20 Ball Screw Jack Details information. 

1. Jack Model: SJB20

2. Screw Diam.: 30mm 

3. Lead : 5mm . Custom high lead 

4. Max load capacity: 20KN

5. Gear Ratio: 1/6, 1/24. 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.

SJB20 Ball Screw Jack Specifications:

Maximum Load ( KN )		20	Starting Efficiency ( % )	H	32
Lifting Screw Diam.( mm )		32		L	20
Lead ( mm )		5	Working Efficiency ( % ) at 1500rpm	H	58
Gear Ratio	H	1/6		L	39
	L	1/24	Housing Material	Spheroidal graphite iron
Permissible Max. Power ( Kw )	H	1.14
	L	0.55
Max starting torque full load ( N.m )	H	8.2	Weight without stroke ( Kg )	9.5
	L	3.4	Weight per 100mm screw and protective tube( Kg )	0.8

SJB20 Screw Jack Lifting Load( KN )
Speed (rpm)	Lifting Speed (mm/s)		20KN				15KN
			H:1/6		L:1/24		H:1/6		L:1/24
	H:1/6	L:1/24	N.m	KW	N.m	KW	N.m	KW	N.m	KW
1400	19.4	4.8	4.56	0.67	1.69	0.25	3.42	0.50	1.27	0.19
900	12.4	3.1	4.80	0.45	1.74	0.16	3.60	0.34	1.30	0.12
700	9.7	2.4	4.99	0.37	1.79	0.13	3.74	0.27	1.34	0.10
500	6.9	1.7	5.28	0.28	1.83	0.10	3.96	0.21	1.38	0.07
300	4.1	1.0	5.50	0.17	2.00	0.06	4.13	0.13	1.50	0.05
100	1.4	0.3	5.87	0.06	2.20	0.02	4.40	0.05	1.65	0.02
50	0.7	0.2	6.14	0.03	2.36	0.01	4.61	0.02	1.77	0.01
Speed (rpm)	Lifting Speed (mm/s)		10KN				5KN
			H:1/6		L:1/24		H:1/6		L:1/24
	H:1/6	L:1/24	N.m	KW	N.m	KW	N.m	KW	N.m	KW
1400	19.4	4.8	2.28	0.334	0.847	0.124	1.139	0.167	0.423	0.062
900	12.4	3.1	2.40	0.226	0.869	0.082	1.201	0.113	0.435	0.041
700	9.7	2.4	2.49	0.183	0.893	0.065	1.246	0.091	0.446	0.033
500	6.9	1.7	2.64	0.138	0.917	0.048	1.321	0.069	0.459	0.024
300	4.1	1.0	2.75	0.086	1.001	0.031	1.376	0.043	0.500	0.016
100	1.4	0.3	2.94	0.031	1.101	0.012	1.468	0.015	0.550	0.006
50	0.7	0.2	3.07	0.016	1.180	0.006	1.536	0.008	0.590	0.003

SJB20 Ball Screw Jack Dimensions.

1: Jack Brand

SJB: "SIJIE" brand Ball screw jack

2: Load Capacity

20 :  Max. Load capacity is 20KN

Before selecting 20, please check above SJB20 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:                                       

SJB20 ball screw jack gear ratio includes 1/6, 1/24

1/6: Fast speed, 0.83mm travel length per full turn of worm shaft.                 

1/24: Low speed, 0.21 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