ZT177N High-Torque Twin Screw Extruder Gearbox for Petrochemical Compounding Applications

In petrochemical compounding and granulation processes, twin screw extruders are required to operate continuously under high load, high torque, and demanding working conditions. The gearbox, as the core power transmission component, plays a decisive role in equipment stability, service life, and production efficiency.

To meet these requirements, ZHITIAN developed the ZT177N co-rotating twin screw extruder gearbox, specifically designed as a reliable and cost-effective alternative to ZSK177 gearboxes, widely used in petrochemical and pelletizing applications.

• Industry: Petrochemical compounding and granulation
• Extruder Type: Co-rotating twin screw extruder
• Target Replacement Model: ZSK177
• Operating Mode: Long-term continuous operation under high torque

The ZT177N gearbox has been successfully applied in petrochemical production lines, providing stable power transmission and excellent operational reliability.

The ZT177N gearbox is designed with a specific torque lower than 13 Nm/cm³, achieving a strong balance between torque capacity, mechanical reliability, and service life.
This makes it well-suited for demanding compounding processes while maintaining long-term stability.

The gearbox adopts a radial torque-splitting transmission structure, effectively distributing load across multiple gear stages. This design reduces stress concentration, improves load-bearing capability, and enhances overall durability.

• Low-carbon alloy carburized gears for high strength and wear resistance
• High-performance material output shafts designed for high torque transmission
• Bearings from globally recognized brands, ensuring stable operation and extended service life
• QT450 high-performance ductile iron housing, offering excellent rigidity, vibration damping, and dimensional stability

To support safe operation and convenient maintenance, the ZT177N gearbox can be equipped with a jogging motor, allowing low-speed shaft rotation during installation, inspection, and maintenance. This feature significantly improves operational safety and service efficiency.

ZHITIAN places strong emphasis on quality control and process traceability. For each ZT177N gearbox, we can provide:

• Full-dimensional inspection reports
• Precision measurement data covering critical transmission components
• Documented inspection records supporting long-term quality traceability

This ensures every gearbox meets design specifications before delivery.

The ZT177N Twin Screw Extruder Gearbox was officially showcased at CHINAPLAS 2025, one of the world’s leading exhibitions for the plastics and rubber industries.

As a key high-torque gearbox developed by ZHITIAN, the ZT177N attracted strong interest from global customers in petrochemical compounding and engineering plastics sectors.
Through on-site product display and technical discussions, the gearbox’s structural optimization, manufacturing precision, and application reliability were widely recognized.

With its high torque capability, optimized structure, reliable materials, and competitive cost, the ZT177N gearbox provides a practical and proven solution for customers seeking a dependable alternative to ZSK177 gearboxes.

Backed by ZHITIAN’s extensive manufacturing experience in twin screw extruder components, the ZT177N gearbox delivers stable performance, long service life, and excellent value, making it an ideal choice for petrochemical compounding and granulation applications.