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China, Chinese Swl Screw Lift Transmission Gearbox Reducer Hand Screw Jack Lift Mechanism1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Power Transmission PartsWormSwl Series Worm Screw JackGear
Qingdao Chinese Science Machinery Co., Ltd.
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Product Description 1.Convenient to adjust2.Wide range of ratio3.Easy to install4.high torqueApplication Industries:Our SWL series screw jacks are widely used in the industries such as metallurgy,mining,hoisting and transportation, electricalpower,energy source,constrction and building material,light industry and traffice industryScrew Jacks in constructionOften found in climbing mechanism of construction,the screw jacks use physical means to raise and lower loads, which typically range from 5 tons to 30 tons. A screw jack is a common type of mechanical jack, which works via a motor and gearbox by an operator. A screw uses the shape of its threads to raise or lower the load, or a traveling nut does the lifting while the screw turns in place. Mechanical jacks are self-locking(not for ball screw), which means that when power is removed from the jack, the screw stays in place until power resumes. This setup makes mechanical jacks safer than their hydraulic counterparts, because users don't have to fear a loss of power. The main components of screw jacks are; trapezoidal lifting screw also known as lead screw, worm screw, worm gear and gear housing. A worm screw is rotated manually or by a motor. With the rotation of the worm gear, the lead screw in it moves upwards or downwards linearly. The feed rate of the screw depends on the turning speed, the number of teeth of the gears and the size of the screw pitch. In some models of jackscrews, The lifting screw does not move up and down. It only rotates around its axis. A lifting nut (also known as a travelling nut) moves along the lead screw. The lifting nut of the screw jack is made of bronze to decrease friction.Product ParametersMODEL SWL2.5SWL5SWL10SWL15SWL20SWL25SWL35Maximum lifting force (kN) 2550100150200250350Screw thread size Tr30*6Tr40*7Tr58*12Tr58*12Tr65*12Tr90*16Tr100*20Maximum tension (kN) 255099166250350Worm gear ratio (mm)P1/61/83/231/83/323/32 M1/241/241/241/241/321/32Worm non rotating stroke (mm)P1.00.8751.5651.561.51.875M0.2500.2920.50.50.50.625Maximum elongation of screw rod under tensile load (mm) 150020002500300035004000Maximum lifting height at maximum pressure load (mm)The head of the screw rod is not guided250385500400490850820Lead screw head guide400770100080098017001640Worm torque at full load(N.m)P1839.5119179240366464M8.8619.86090122217253efficiency(%)P222320.5 19.51618M1111.513 12.8911Weight without stroke(kg) 7.316.225 3670.587Weight of screw rod per 100mm(kg) 0.450.821.67 2.154.155.20Detailed Photos SWL Series worm screw Jack:1.The elevator is a combination of turbine pair and trapezoid screw rod to complete the lifting and lowering of objects. 2.Compact structure, light weight, safety and reliability, long service life, convenient installation3.Self-locking function in the static state. 1. screw rod2. nut bolt3. cover4.Skeleton oil seal5.Bearing6.Worm gear7.Oil filling hole8.Case9.Skeleton oil seal10.Cover11. nut bolt12.Bearing13.Skeleton oil seal14.Bearing15.worm16.Flat key17.Bearing18.Skeleton oil seal19.Cover20.Nut boltProduct Description Related Products Packaging & Shipping Company Profile
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