Special Drive Unit for Twin-Screw Extruders

The SZ/SZL series reducer features optimized parameters and structure. The gears are made of high-strength, low-carbon alloy steel, carburized and quenched, and ground. The distribution box housing is made of ductile iron. The product boasts high load-bearing capacity, low noise, smooth operation, and high transmission efficiency.

Input speed of the reduction gearbox not exceeding 1500 rpm.

The input shaft and motor shaft are connected via a flexible coupling.

Precautions: The reduction gearbox and distribution box are internally equipped with serpentine cooling water pipes, using circulating water cooling. The inlet temperature of the cooling water must not exceed 30°C. The gearbox and distribution box should be installed on a plane at the same horizontal level. When the external spline of the distribution box's long shaft is inserted into the spline hole of the gearbox's output shaft, with the anchor nuts loosened, check the clearance between the bottom surfaces of both gearbox housings and the mounting plane. Make appropriate adjustments if necessary to ensure the coaxiality of the gearbox output shaft and the distribution box's long shaft meets the requirements.

After installation, manually check that all components rotate freely without any jamming.

The coaxiality of the screw and the distribution box's output spline shaft directly affects the lifespan of important components such as gears and bearings in the distribution box. During installation, the spline sleeve should be removed, and a dial indicator should be used to carefully check the radial runout of the spline shaft. A feeler gauge should be used to check the good contact between the end faces of the screw and the distribution box spline shaft to eliminate any errors.

Choosing Guomao Guotai's Twin Screw Extruder Speed Reducer means ensuring stable performance, high torque output, and long-term reliability in demanding extrusion applications. Designed specifically for twin screw extruders, this reducer features a high load-bearing capacity, precision gear transmission, and excellent thermal stability, making it ideal for continuous, high-intensity operations.

Manufactured with advanced CNC gear grinding technology and strict quality control systems, the reducer delivers high efficiency, low noise, and smooth operation, even under heavy-duty conditions. Its optimized structure enhances torque density while maintaining a compact design, helping improve overall equipment efficiency and reduce energy consumption.

Vertical Conical Twin Screw Extruder Gearboxes are widely used in industries such as plastics processing, chemical engineering, and rubber manufacturing, this reducer ensures consistent extrusion performance and extended service life, minimizing downtime and maintenance costs.

With comprehensive OEM/ODM customization capabilities, Guomao Guotai provides tailored solutions to meet different extruder specifications. Supported by professional technical service and a reliable global support network, we are committed to delivering durable, high-performance transmission solutions for customers worldwide.

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