1.Jack Model: SJB10
2. Screw Diam.: 20mm
3. Lead : 5mm . Custom high lead
4. Max load capacity: 10KN
5. Gear Ratio: 1/4, 1/16. Custom other worm gear ratios.

1.Jack Model: SJB20
2. Screw Diam.: 30mm
3. Lead : 5mm . Custom high lead
4. Max. lifting load: 20KN, rated dynamic load 17KN.
5. Gear Ratio: 1/6, 1/24. Custom other worm gear ratios.

1.Jack Model: SJB50
2. Screw Diam.: 40mm
3. Lead : 10mm . Custom high lead
4. Max lifting load : 50KN, Rated dynamic load: 46KN.
5. Gear Ratio: 1/7, 1/28. Custom other worm gear ratios.

1.Jack Model: SJB80
2. Screw Diam.: 50mm
3. Lead : 10mm . Custom high lead
4. Max lifting load: 60KN, Rated dynamic load: 53KN
5. Gear Ratio: 1/8, 1/32. Custom other worm gear ratios.

1.Jack Model: SJB100
2. Screw Diam.: 63mm
3. Lead : 10mm . Custom high lead
4. Max. Lifting Load : 80KN, Rated Dynamic Load: 71KN.
5. Gear Ratio: 1/8, 1/32. Custom other worm gear ratios.

1.Jack Model: SJB200
2. Screw Diam.: 80mm
3. Lead : 10mm . Custom high lead
4. Max lifting load: 90KN
5. Dynamic load rating: 78KN
6. Gear Ratio: 1/8.75, 1/35. Custom other worm gear ratios.

1.Jack Model: SJB300
2. Screw Diam.: 100mm
3. Lead : 20mm . Custom other lead
4. Max lifting load: 150KN
5. Dynamic load rating: 111KN
6. Gear Ratio: 1/10.25, 1/41. Custom other worm gear ratios.