Custom-Engineered Gearbox for Extruder | ZHITIAN’s Full Series for Twin Screw Extruders

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.

Five Gearbox Series for Twin Screw Extruders

1. 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.
2. 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.
3. 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.
4. TDSN Series – Economic Gearbox (≤7 Nm/cm³)
   A cost-effective choice for general-purpose extrusion lines, balancing performance and affordability.
5. 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.

Customized Gearbox Solutions for Specialized Industries

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

Why Choose ZHITIAN 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.

Technical Summary (Table)

Looking for the right gearbox for your extruder?
Contact ZHITIAN today to get expert guidance, custom configurations, and powerful drive solutions tailored to your production line.

Specializing in the production of twin-screw extruder parts

Zhitian, a high-tech enterprise and Jiangsu Province-certified Specialized, Refined, Distinctive, and Innovative (SRDI) company, has specialized in twin-screw extruder parts for over two decades. With two production bases in Nanjing Zhitian and Anhui Zhitian New Materials covering over 13,000 square meters and employing over 100 staff, we adhere to the management philosophy: "Guided by customer needs to drive enterprise development; rooted in dedicated employees to forge the company's future."

As a renowned manufacturer in twin-screw extruder parts, we provide:

• High-performance alloy material solutions for screw barrels (nickel-based alloys, cobalt-based alloys, etc.)
• Professional design and manufacturing of key parts including screw barrels, gearboxes, screw elements, and shafts
• Comprehensive services encompassing repair, sample mapping and processing, and custom manufacturing according to requirements

Our solutions serve multiple industries including plastics & rubber, battery materials, and food & feed processing.

With global operations spanning Americas, Europe, Middle East, Africa, East Asia and Southeast Asia, Zhitian maintains strategic partnerships with world-leading extruder manufacturers including Coperion, KraussMaffei, Leistritz, Bühler, CPM, and Jwell. Supported by robust technical capabilities, advanced processing equipment, sophisticated production techniques, and stringent quality control systems, we deliver premium products that have earned widespread acclaim from global customers.