In-House Precision Machining for Tritenco Eaton Transmission Valves

Manufacturing Capability

At Tritenco (Zhuji Caiteng Machinery), we focus on manufacturing high-precision components and core capabilities that support our own brand Tritenco pneumatic control valves for Eaton heavy-duty transmissions.
All our processes are developed to ensure our Tritenco valves meet OE-equivalent quality standards, are direct replacements for original components, and fit perfectly on Eaton heavy-duty transmissions.

Precision Shaft & Spool Machining

Ultra-precision machining of spools, valve stems and precision shafts is the core capability that guarantees the performance of our Tritenco control valves.

• Diameter range: Φ3mm – Φ40mm
• Max length: 200mm
• Cylindricity ≤ 0.0025mm
• Diameter tolerance: ±0.0025mm
• SPC statistical control for mass production consistency
• Full inspection with CMM, cylindricity testers and video measuring systems

This capability ensures our Tritenco Eaton transmission control valves achieve stable performance, reliable sealing and long service life as OE-quality direct replacements.

High-Performance Mechanical Base Components

We produce high-strength, wear-resistant components in-house to support the durability and reliability of our TRITENCO control valves:

• High-hardness bushings for heavy-duty applications
• High-strength fasteners (Grade 10.9, tensile strength up to 1130MPa)
• Special heat treatment and surface treatments for corrosion & wear resistance
• Material expertise for harsh working environments

These components are critical to ensuring our Tritenco valves maintain OE-equivalent performance as direct replacements on Eaton transmissions.

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Dimensions: 61x70x22.5mm Material: X39CrMo17-1 (EN 10088-3 1.4122) Bore hardening Inner hole surface hardness: 500+100HV10 (49-55HRC) Hardened layer depth Rht: 0.8+0.4mm

Integrated Manufacturing & Precision Quality System

At Tritenco, our production workshops are equipped with complete manufacturing and quality inspection systems to support the high-precision requirements of transmission control valves.

Core Manufacturing Capabilities

• Advanced machining centers for ultra-precision spool and shaft components
• CMM, cylindricity testers, and surface roughness analyzers for full inspection
• SPC and PPAP quality control processes to ensure consistent mass production
• ERP and lean manufacturing systems for efficient order management and on-time delivery

IATF 16949 Certified Quality Control

Our integrated manufacturing system is certified to IATF 16949, supporting stable production of our own-brand Tritenco products:

• Full process traceability (IQC, IPQC, OQC)
• Flexible production for both custom development and mass production
• Strict quality control to ensure OE-equivalent fit, form, and function
• Stable supply chain for global customers

This end-to-end capability is what enables us to manufacture Tritenco valves that serve as reliable direct replacements for heavy-duty transmissions.