Welcome to NOSEN M&E Technology Co., Ltd. China leading manufacturer of metric mechanical worm gear screw jacks, spiral bevel gearboxes and multiple jacks system. In China, Only two companies are committed to manufacture above two type power transmission products. NOSEN is one of them. NOSEN standard type mechanical worm gear screw jack series as follows: Trapezoidal screw jack 1.RN-Series, Asymmetric Housing, Max loading capacities up to 100 tons 2.RNF-Series, Cubical Housing, Max loading capacities up to 50 tons Ball screw jack 1.RNK-Series, Asymmetric Housing, Max dynamic(working) loading capacities up to 2.8 tons Bevel gear screw jack 1.RNS-Series, Cubical Housing, Max loading capacities up to 9 tons Mechanical worm gear screw jack is available to produce following customers orders. NOSEN standard type spiral bevel gearbox series as follows: spiral bevel gear type gearbox 1.RN-Series, Asymmetric Housing High torque, max up to 5715 N.m High power, max up to 335 kw High revolutions, max up to 1450 rpm 2.RNV-Series, Cubical Housing High torque, max up to 1833.5 N.m High power, max up to 156.8 kw High revolutions, max up to 1450 rpm Spiral bevel gear type gearbox is available to produce following customers orders.