If you looking for one of the best sj-30t worm 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 sj-30t worm screw jack products.SJ-30T Worm Screw Jack Detailed Information:1: Jack Model: SJ-30T2: Static Load Capacity: Max 30 tons3: Dynamic load Capacity: Max 9.6 tons4: Lifting Screw Diam: 75 mm5: Lifting Screw Pitch: 12 mm6: Gear Ratio: 1/12, 1/18, 1/367: Lifting Speed: 1.67mm/s-25mm/sSJ-30T Worm Screw Jack Specification: