Product Details

Gear box for the double screw and barrel extruder .

SZ Series gear box for conical twin-screw

General Survey

SZ serial gearbox for conical twin-screw Rod Extruder is a special driving unit matched with conical twin-screw rod extruder.It consists of two parts,namely,the reduction box and the distribution box. After reducing speed and increasing torque of the motor,it outputs the motive power to the distribution box,then drives the double output shafts(the included angle is the same with that of twin-screw rods)via a pair of small conical spiral gears with driving ratio of 1:1,thus to drive screw rods to rotate outward with different direction.

Features of Product

1.There are involute cylindrical gears in the gearbox,which data and structure are optimally designed by the computer.

2.The gears are made of top-quality high-strength low carbon alloy steel after carbon penetrating,quench and teeth grinding.It has high hardness on teeth surface.large bearing ability,small noise,smooth operation and high driving efficiency.

3.The material of the distribution box is nodular graphite casting iron and the gears have high-strength ground teeth,in which snake-shaped cooling water pipes are distributed.

4.The maximum input speed of the gearbox is normally not larger than 1500 rpm.

5.The temperature in work environment is -10-45,when temperature is lower than 0,the lubricant oil should be preheated to +10 before starting.

The main technical performance table in the gearbox process are:

	SZ45	SZ50	SZ55	SZ65	SZ80	SZ92
	SZ45	SZ50	SZ55	SZ65	SZ80	SZ92
Input speed max r/min	1500	1500	1500	1500	1500	1500
Output speed max r/min	44.8	37.8	37.5	39.1	37.7	40
Input power kw	18.5	22	30	37	55	110
Uniaxial torque output N.m	1972	2779	3820	4518	6786	13130
Axis angle distribution	2°40'	2°58'12"	2°36'14"	2°11'16"	2°0'18"	1°52'3.64"
Connect spline size	8-48×42×8	8-48×46×9	6-60×53×14	8-65×56×10	8-72×62×12	10-98×92×14