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Horizontal Conical Twin Gearbox
Gearbox

Horizontal Conical Twin Gearbox

The SZ series gear units is specially designed as a mechanical transmission device mating for the cone double screw plastic extruder. The gear unit is composed of the transmission case and the distribution case. The device can transmit the power generated by the major motor to the long axis of the distributor case after speed reduction and twist increasing in the transmission case. Then the long axis drives the minor axis through a pair of small-cone-angle spiral gear with a transmission ratio of 1:1. The long axis and the minor axis with the same corner dimension as the screw bolt and in the manner of inverted outward rotation drive the screw bolt to extrude high-quality products. 

    Features Of Product

    The transmission case is designed according to the standard of JB / T9050.1-1999. The gears and axial parts are made of top-quality high-strength low carbon alloy steel. The gears go through the process of carburization, heat hardening and gear grinding, with the gear precision of grade 6 and the tooth surface hardness of HRC54-62.

    The distributor case is made of ductile iron. The gears have high-strength ground teech. The gear-hobbing is cut with CNC gear-hobbing machine, thus its cone angle precision is much higher than other processing method.

    The distributor case is made of ductile iron. The gears have high-strength ground teech. The gear-hobbing is cut with CNC gear-hobbing machine, thus its cone angle precision is much higher than other processing method.

    Strong load capacity, low noise, stable transmission, and high driving efficiency.

    Service Conditions

    The rotary speed of the high speed shaft of the transmission case shall not be higher than 1500 pm.

    The ambient working temperature shall be 0~35 C.When temperature is lower than 0°C, the lubricant oil should be preheated to 10°C before starting.

    Technical Specification

    Model

    Max Input Speed (rpm)

    Max Output Speed (rpm)

    Input Power (kW)

    Single Shaft Output Torque (Nm)

    SZ45

    1500

    44.8

    18.5

    1972

    SZ50C

    1500

    37.8

    22

    2779

    SZ55

    1500

    37.5

    30

    3820

    SZ65

    1500

    39.1

    37

    4518

    SZ80

    1500

    38.7

    55

    6786

    SZ92

    1500

    40

    110

    13130

    SZ95

    1500

    40

    132

    15757

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