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Nanjing Zhitian Mechanical And Electrical Co., Ltd.
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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
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.
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)
Series
Torque Rating (Nm/cm³)
Structure Type
Application Focus
ZT-N
≤13
Radial Torque Split
General extrusion applications
ZT-Z
15
Optimized Radial Split
Higher torque, small upgrade
ZT-E
16–18
Axial + Radial Split Hybrid
High-capacity, energy-saving
TDSN
≤7
Economic Type
Cost-sensitive projects
STD
≤9
Mid-Level Economic
Medium throughput lines
Manufacturing Process and Functional Areas
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.
Each area is equipped with advanced machinery and staffed by experienced personnel, guaranteeing that every gearbox delivered meets the highest standards of quality and durability.
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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2006
Total Annual:
10000000-12000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
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... 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...
