Texas Rio Bo Precision Machinery Co., Ltd. is a professional manufacturer of gear. SJA worm screw lifter (SJA screw jack) is a basic crane parts, with a compact, small size, light weight, power extensive source, easy installation, no noise, multi-function, supporting forms and more flexible, reliable high, long life and many other advantages. Lifts unique square grooves housing, increase the cooling capacity of the housing, and so extend the life of the grease. Ductile iron shell material selection, a substantial increase in strength and performance of the housing, and is widely used in high temperature / low temperature. Use a square tail cover design, control screw without rotation. Advanced processing equipment and processing and assembly technology, high product quality assurance, advanced design concepts to create a strong shock resistance, high strength, low noise, long life, small size and high quality products, a rich combination of modular product portfolio Any combination of changes, screw jacks directly with the motor / / Special Features attachments, integrated design, providing customers with thousands breeze ,, can choose non-standard design according to customer requirements, such as stainless steel case and screw spiral lift, long screw, low temperature, high temperature, and other products. SJA Screw Jacks Features: plunger speed: up to 75mm / s; Input speed: 1800rpm; stroke range: up to 6.5 m; standard products accuracy to 0.1mm, including anti-backlash precision attachments up to 0.04mm, absolutely high mechanical synchronization accuracy, smooth running, strong impact, can provide double-headed screw, three-headed screw, ball screw jacks. 10 minutes for 30% duty. SJA screw lifter (SJA screw jack) Features thrust range: 0.5-30 tons - travel up to 8m, have to consider the stability of the screw and guide mechanism - Operating system 30%, if the load factor is small, you can appropriately increase working system - Lifting speed is less than 1500mm / min (23mm / s), special circumstances may reach 46mm / s - less than 33 percent efficiency, self-locking feature, a large reduction ratio L1 absolute self-locking - precision positioning, additional precision anti-backlash device up to 0.05mm - absolute synchronization, the same motor can drive multiple screw jacks, mechanical synchronization - can be equipped with an encoder, limit switches, dust cover, safety nut, gear, general motors, servo motors, stainless steel, etc. - simple operation and maintenance, low noise