If you looking for one of the best sjb50 ball screw jack manufacturers or a such supplier in China,Website:://.screwjacksj.com, equipped with one professional factory, Sijie Industrial Co.,Ltd is always at your service, we are able to offer you customized sjb50 ball screw jack products.SJB50 Ball Screw Jack Details information. 1. Jack Model: SJB502. Screw Diam.: 40mm 3. Lead : 10mm . Custom high lead 4. Max load capacity: 50KN5. 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 Available9. 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 )50Starting Efficiency ( % )H33Lifting Screw Diam.( mm )40L20Lead ( mm )10Working Efficiency ( % ) at 1500rpmH59Gear RatioH1/7L39L1/28Housing MaterialSpheroidal graphite ironPermissible Max. Power ( Kw )H2.1L1.1Max starting torque full load ( N.m )H34.4Weight without stroke ( Kg )23L14.6Weight per 100mm screw and protective tube( Kg ) 1.6SJB50 Screw Jack Lifting Load( KN )Speed(rpm)Lifting Speed(mm/s)50KN35KNH:1/7L:1/28H:1/7L:1/28H:1/7L:1/28N.mKWN.mKWN.mKWN.mKW140033.48.319.292.837.301.0713.501.985.110.7590021.45.420.691.957.490.7114.481.365.240.4970016.74.221.471.577.690.5615.031.105.380.36950011.93.022.761.197.900.4115.930.835.530.293007.11.823.710.748.620.2716.600.526.040.191002.40.625.290.269.480.1017.700.196.640.07501.20.326.470.1410.160.0518.530.107.110.04Speed(rpm)Lifting Speed(mm/s)25KN10KNH:1/7L:1/28H:1/7L:1/28H:1/7L:1/28N.mKWN.mKWN.mKWN.mKW140033.48.39.641.4143.6480.5353.8580.5661.4590.21490021.45.410.350.9753.7740.3534.1380.3901.4970.14170016.74.210.740.7873.8450.2824.2940.3151.5380.11350011.93.011.380.5963.9520.2074.5520.2381.5810.0833007.11.811.850.3724.3110.1354.7420.1491.7240.0541002.40.612.640.1324.7420.0505.0580.0531.8970.020501.20.313.230.0695.0810.0275.2930.0282.0320.011SJB50 Ball Screw Jack Dimensions.1: Jack BrandSJB: "SIJIE" brand Ball screw jack2: Load Capacity50 :  Max. Load capacity is 50KNBefore selecting 50, please check above SJB50 ball screw jack specifications. 3: Screw Configuration