High Performance Engine Valve Grinder Machines

Professional OEM of Automatic Engine Valve Production Lines. Precision-engineered grinding, forging, and welding machines built for industrial excellence and long-term reliability.

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2008 Established

Over 15 years of expertise in valve production machinery

PLC & Servo Control

All machines use advanced automation systems

Global Export

Serving clients in Europe, Asia, Americas & more

About Tianzhijiao

Suzhou Tianzhijiao Precision Machinery Co., Ltd. was established in 2008 and has since become a leading original equipment manufacturer specializing in automatic engine valve production lines.

Our team includes 10 senior technical engineers and 20 service technicians, all with extensive experience in the valve equipment industry. We pride ourselves on delivering high-precision machines that integrate PLC and servo control systems, enabling fully automated production with robotic handling for loading and unloading.

Professional OEM with 15+ years of experience
Customized turnkey solutions
Full production line integration
Reliable after-sales support

Our Products

Discover our range of high-performance machines designed for precision engine valve manufacturing. Each machine is built with advanced automation and durable components.

Engine Valve Grinding Machine

High-precision grinding for valve stems and seats using advanced CBN wheels.

Control: Servo + PLC
Automation: Robotic loading/unloading
Application: Automotive & industrial valves

Centerless Grinding Machine CLG-400A

Ideal for high-volume, high-accuracy grinding of cylindrical valve stems.

Model: CLG-400A
Control: CNC System
Capacity: High-speed continuous processing

Friction Welding Machine

Robust welding solution for joining valve stems and heads with high integrity.

Process: Rotary friction welding
Material: Stainless steel, nickel alloys
Output: High-strength, defect-free joints

Automatic Forging Machine

Fully automated forging system for valve head forming with precision dies.

Type: Hot forging
Control: Servo-driven
Integration: Part of full production line

Servo Control Single Station Electrical Upsetting Machine

Precision upsetting for valve stem pre-forming with energy efficiency.

Drive: Servo motor
Accuracy: ±0.1mm
Speed: Adjustable stroke frequency

Ceramic CBN Wheel Valve Seat Grinding Machine

Advanced grinding with ceramic-bonded CBN wheels for superior finish.

Wheel: Ceramic CBN
Surface Finish: Ra ≤ 0.2μm
Cooling: Precision mist cooling system

Valve Tip End Rough Grinding Machine

Efficient rough grinding for valve tips before fine finishing.

Stage: Pre-finishing
Material Removal: High rate
Integration: Inline with production line

Engine Valve Dimensional Inspection

Automated optical and tactile measurement system for quality assurance.

Measurement: Length, diameter, angle
Accuracy: Micron-level precision
Output: Real-time SPC data

Automatic Engine Valve Production Line

Complete turnkey solution from raw material to finished valve.

Type: Fully automated
Integration: Forging, welding, grinding, inspection
Capacity: Customizable based on demand

Spare Parts

Genuine replacement parts for all Tianzhijiao machines.

Availability: In stock
Compatibility: 100% OEM match
Support: Global shipping

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Our Services

From design to delivery and beyond, we offer comprehensive support to ensure your production runs smoothly.

Custom Design

Machines tailored to your specific valve dimensions and production needs.

Turnkey Solutions

Complete production lines with seamless integration and testing.

Global Shipping

Reliable delivery to any destination with proper packaging and documentation.

After-Sales Support

Technical assistance, training, and spare parts supply for long-term operation.

Latest News

Daily Maintenance Guide for CNC Centerless Grinding Machine

Systematic daily maintenance is crucial to ensure precision equipment remains in optimal condition. Prevent downtime and extend machine life with our expert tips.

What Are Forging Machines?

Explore the evolution of forging from ancient blacksmithing to modern industrial processes. Learn how forging machines produce high-strength components.

Customer Inspected Valve Cut-Off Machine

See how our clients evaluate machine performance on-site. Quality assurance through direct inspection and testing.

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