High Torque Gearbox for Twin Screw Extruder – Precision Replacement Gear Unit for Co-Rotating Extrusion Systems

ZHITIAN specializes in the design and manufacturing of gearboxes for twin screw extruders, offering five distinct series tailored to meet the needs of various industries, output capacities, and processing conditions. With over a decade of engineering experience, ZHITIAN delivers high-performance gearbox solutions that ensure smooth power transmission, durability, and energy efficiency.

• ZT-N Series - Radial Torque Split Design (≤13 Nm/cm³)
  Covering extruder models from 20 to 177, the ZT-N series features a radial torque distribution structure. Torque is equally split into intermediate shafts C/D and then transmitted to the output shaft B via symmetrical gear engagement. This design ensures stable power output, enhanced load capacity, and long service life. Multiple gear ratio options available.
• ZT-Z Series - Optimized Radial Torque Split (15 Nm/cm³)
  Based on the ZT-N structure, the ZT-Z series improves torque performance up to 15 Nm/cm³. It's an ideal upgrade for manufacturers seeking enhanced output and durability without changing installation dimensions.
• ZT-E Series - High Torque Hybrid Power Split (16-18 Nm/cm³)
  Engineered for ultra-high torque applications, ZT-E combines radial and axial torque splitting to maximize transmission efficiency and power capacity. Particularly suitable for industries where energy-saving, reduced equipment count, and lower operating costs are critical.
• TDSN Series - Economic Gearbox (≤7 Nm/cm³)
  A cost-effective choice for general-purpose extrusion lines, balancing performance and affordability.
• STD Series - Mid-Level Economic Gearbox (≤9 Nm/cm³)
  Designed for moderate capacity applications with stable performance and lower cost, ideal for small to medium-sized production lines.

In addition to the standard series, ZHITIAN also develops custom gearboxes for specific sectors:

• TDF Series - for food and feed extrusion
• ZTA Series - for lithium battery materials
• SANB Series - for triple-screw extruders
• OEM Custom Projects - for non-standard or reverse-engineered gearboxes

• Complete Inventory & Fast Delivery
  Comprehensive stock of spare parts to ensure fast replacement and minimal downtime.
• Fast After-Sales Support
  Minor issues resolved within 3 days, major problems addressed within one week.
• High-Precision Manufacturing
  Equipped with advanced CNC machining and inspection systems to guarantee quality consistency.
• Independent R&D Capability
  A dedicated engineering team continuously drives technological innovation and product upgrades.
• Industry Collaboration
  ZHITIAN actively participates in industry forums to stay ahead of technology trends and align with customer needs.

The production of our gearboxes for extruders is carried out through a series of specialized functional zones, ensuring quality and efficiency at every step:

• Casting Storage Area: Organized storage of raw castings, ready for processing.
• Incoming Material Inspection Area: Strict quality control on all incoming materials to ensure compliance with specifications before production.
• Boring Machining Area: Precision boring of casting bores to achieve required dimensional accuracy and surface finish.
• Precision Gear Grinding Area: High-accuracy grinding of gear teeth to meet stringent tolerance and surface quality requirements.
• Assembly Area: Careful assembly of gearbox components by skilled technicians, ensuring optimal fit and function.
• Test Run & Inspection Area: Rigorous operational testing and final inspection to verify performance and reliability under working conditions.
• Packaging & Shipping Area: Secure packaging and preparation of finished gearboxes for safe delivery to customers.
• Spare Parts Storage Area: Inventory of critical spare parts to support after-sales service and minimize downtime.