Screw jacks
Product Description:
009Screw jacks,Rotating Screw jacksSJR10 & 14 Type : Screwjack - Rotating Screw Actuator ModelsMaterial
Body: Aluminium
Worm & Screw: Steel
Nut: Bronze Performance
Features: Precise Positioning, Self Locking, Uniform Lifting Speed, Quick, Sure Operation
Max. Lift Cap.: 5kN (SJR10), 10kN (SJR14)
Lifting Screw* - Dia. / Pitch (mm): 16 / 3 (SJR10), 20 / 5 (SJR14)
Worm Gear Ratios - Standard / Optional: 5:1 / 20:1
Turning of Worm for Raise of Lifting Screw - 5:1 Ratio: 5 for 3mm (SJR10), 1 for 1mm (SJR14)
Turning of Worm for Raise of Lifting Screw - 20:1 Ratio: 20 for 3mm (SJR10), 4 for 1mm (SJR14)
Max. Input Power per Actuator - 5:1 Ratio: 0.25kW (SJR10), 0.375kW (SJR14)
Max. Input Power per Actuator - 20:1 Ratio: 0.12kW (SJR10), 0.19kW (SJR14)
Start-Up Torque at Full Load** - 5:1 Ratio: 2.5Nm (SJR10), 6.8Nm (SJR14)
Start-Up Torque at Full Load** - 20:1 Ratio: 1.1Nm (SJR10), 3.0Nm (SJR14)
Weight with Base Raise of 150mm: 1.03kg (SJR10), 2.27kg (SJR14)
Weight for Each Additional 25mm Raise: 0.073kg (SJR10), 0.13kg (SJR14)
Actuator Static Efficiency - Standard / Optional: 0.189 / 0.107 (SJR10), 0.233 / 0.130 (SJR14)
Actuator Dynamic Efficiency - Standard / Optional: 0.252 / 0.160 (SJR10), 0.306 / 0.194 (SJR14)
*All metric machine screws have a trapezoidal thread form, single start as standard.
**For loads of 25% to 100% of actuator capacity, torque requirements are approx. proportional to the load. Options (Dimensions Subject to Change)
Inverted Rotating Screw: Contact Sales for details.
Ballscrew Version: Higher cycles.
About Us
Hangzhou Ever-Power Transmission Co., Ltd. (Ever-Power) is a specialist in making all kinds of mechanical transmission and hydraulic transmission like: planetary gearboxes, worm reducers, in-line helical gear speed reducers, parallel shaft helical gear reducers, helical bevel reducers, helical worm gear reducers, agricultural gearboxes, tractor gearboxes, auto gearboxes, PTO shafts, special reducer & related gear components and other related products, hydraulic cylinder, gear pumps and so on. Furthermore, we can produce customized variators, geared motors, electric motors and other hydraulic products according to customers' drawings. Our sales value in year 2007 was over Euro 50 Million. We staff over 1500 workers, and have CNC turning machines and CNC work centers. For more details, please check out our machine lists.
