Precision gearbox SZ45

for twin-screw extrudermechanical transmission

Conical Twin Screw Hard Teeth Surface Gearbox 1. All the gearboxes are designed according to JB/T9050 .1-1999 of various technical standard, which are made up of the transmission box and the distributing box. This is the special mechanical transmission device used for the conical twin screw plastic extruder . 2. The gears of material are 20CrMnTi, after carbonize. quenching and gear grinding. reach 6 precision, the hardness reaches HRC54-62 ,and the law noise. 3. The distributing bax materialis 42CrMo , after gear cutting by CNC Gear Hobbing machine then carburizing. quenching The gears are high precision. and the hardness reaches HRC54-62 , with the low noise. 4. Domestic top-quality ZHJ and DYZV bearings to be adopted, also we can adopt imported brand like SKF . FAG . NSK, which depend on the customer. 5. The case of transmission box adapt HT250 material, and the distributing box materisl adopt QT500 and thick design, which guarantee the case stationarity, It is good for reducing the noise, heat dissipation lubrication of spare parts and an easy maintenance. 6. The oil seal adopt the Taiwan’ sbrand TTO, the gearbox’ s high speed and low speed shafts all use the double ail seals , which can prevent the the passibility of oil leaking.