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.

Twin-screw extruder parts performance optimization

1. Founding & Early Stage (2006)​​

Nanjing Zhitian Mechanical and Electrical Co., Ltd. was established in 2006, headquartered in Jiangning District, Nanjing City, Jiangsu Province. The company initially focused on the ​R&D and production of twin screw extruder components, laying the foundation for its technical expertise in alloy materials and precision machining.

​2. Technological Accumulation & Capacity Expansion (2006–2018)​​

• ​2008: Became the ​first manufacturer​ in China to adopt horizontal machining centers for specialized production of ​twin screw barrels​ (cylinder components), enhancing production efficiency and precision.
• ​2011: Successfully developed and produced ​self-designed twin screw extruder gearboxes, marking a breakthrough in core component localization.
• ​2013: Achieved a milestone by launching ​high-torque gearboxes​ with a specific torque of ​13 Nm/cm³, catering to demanding industrial applications.
• ​2018: Expanded the Nanjing production base to increase output capacity, preparing for large-scale international orders.

​3. Brand Elevation & Technological Breakthroughs (2019–2025)​​

• ​2020: Pioneered ​hot-pressed sintered nickel-based alloy liner​ for barrels, significantly improving wear resistance in high-temperature environments.
• ​2021: Introduced ​ultra-high-torque gearboxes​ with a specific torque of ​18 Nm/cm³​ (e.g., ZT75E series), setting new benchmarks for energy efficiency in battery and plastic industries.
• ​2022: Established ​Zhitian New Materials Base in Anhui Province, forming dual production hubs (Nanjing and Anhui) with a total area exceeding ​13,000 m²​ and a workforce of over 100 employees.
• ​2023: Recognized as a ​​"Jiangsu Provincial Specialized, Sophisticated, and Innovative SME"​, highlighting its innovation capabilities in high-end manufacturing.
• ​2024: Launched ​nickel-based laser-clad barrels​ (e.g., ZT715/ZT735 alloys), attracting global clients with their corrosion resistance and extended lifespan.
• ​2025: Developed ​cold isostatic pressed cobalt-based alloy sleeves​ (e.g., ZT818), combining 18% cobalt and 82% tungsten carbide for unparalleled hardness (HRC 68–69) and impact toughness, widely adopted in lithium battery extrusion systems.

​Key Competitive Advantages​

• ​Technical Leadership: 45+ patents in alloy materials and gearbox design.
• ​Global Reach: Products exported to Europe, Southeast Asia, and South America, supported by localized repair centers.
• ​Sustainability: Component regeneration services (e.g., laser cladding) and ESG-aligned practices.

For detailed product specifications or collaboration inquiries, visit www.njzhitian.com or contact zt@njzhitian.com

Continuous Technological Advancement & Customer Recognition​

​Equipment Upgrades​

​Customer Validation​
"Over 80% of our clients from plastics, battery, and feed industries have placed ​repeat orders for 5+ years, a testament to the reliability and performance of our twin screw components."

​Key Highlights​

• Precision-Centric: 0.02mm tolerance control enabled by 3D detectors and CNC automation.
• Material Innovation: Laser-clad cobalt/nickel alloys extend barrel lifespan by 3–5x vs. conventional materials.
• ​Global Trust: 200+ enterprises worldwide rely on our gearboxes, screw barrels, screw elements, and refurbishment services.

Focus on twin screw extruder parts

​I. Team Scale & Organizational Structure​

• ​Total Workforce: 130+ employees (as of 2024)
• ​Core Departments:
  • R&D Center
  • Production Center
  • Sales & Marketing Department
  • Quality Control Department
• ​Reporting Structure: R&D and Production teams report directly to the General Manager, ensuring efficient implementation of technical decisions.

​II. Core Teams: Functions & Competitive Advantages​

​1. R&D Team​

​Team Composition:

• Material Scientists (specializing in metal alloys)
• Mechanical Design Engineers (barrels, gearboxes, screw elements, and shafts)
• Process Engineers (laser cladding, hot-press sintering)

​Technical Highlights:

• Developed ​51 patented technologies, including ​high-torque gearboxes​ (specific torque: 18 Nm/cm³) and ​cobalt-based alloy Cold Isostatic Pressing (CIP)​​ processes.
• Collaborated with research institutes such as ​Nanjing University of Science and Technology​ to advance industry standards.

​2. Production Team​

​Precision Machining Workshop:

• CNC machining centers
• CNC boring machines
• CNC deep-hole drilling machines
• Gear grinding machines
• Welding robots

​Alloy Forming Workshop:

• Hot-press sintering furnaces
• CIP machines
• Laser cladding systems

​3. Sales & Marketing Team​

Key Service: Technical sales support with ​engineer participation in solution design.

​4. Quality Control Team​

​Testing Capabilities:

• Coordinate measuring machines (CMMs)
• Metallurgical microscopes (material phase analysis)
• 48-hour full-load testing​ for all gearboxes (simulating real-world operating conditions).

​Certifications:

• ISO 9001:2015 Quality Management System certification.

​Key Features​

• ​R&D-Driven Innovation: 25% of the workforce dedicated to R&D, ensuring cutting-edge solutions.
• ​Precision Manufacturing: Advanced CNC and laser cladding technologies guarantee micron-level accuracy.
• ​Global Compliance: ISO-certified processes meet international quality standards.

All ZT keep pay attention to every step of the details, we are looking forward to the forge ahead together with you!