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About Antra Autotech
Precision engine valve manufacturing, built on process discipline rather than shortcuts.
WHO WE ARE
A Straightforward Goal: Valves You Can Rely On
Antra Autotech was founded in 1992 with a straightforward goal: manufacture engine valves that OEMs and workshops can rely on without a second thought. What started as a small precision-machining workshop has grown into a manufacturer supplying automotive, industrial, and agricultural engine valves to customers across 20+ countries.
We are based in Rajkot, Gujarat, India, where our facility handles everything from raw material selection through final inspection.
Where We Are Today
- 34+ years of manufacturing experience
- 500+ valve part numbers in our catalog
- 20+ countries served
- Material testing & dimensional inspection at every production stage
OUR APPROACH
Our Approach to Manufacturing
We don’t treat engine valves as a commodity part. A valve that fails under heat cycling or seat wear doesn’t just cost a customer money — it costs them trust. That’s why every batch we produce goes through:
Material Verification
Confirming steel grade and composition before machining begins.
Precision Machining
Holding tolerances that match or exceed OEM drawings.
Heat Treatment & Hardening
Tuned to the specific valve application (passenger, diesel, two-wheeler, marine, etc.).
Dimensional & Visual Inspection
At in-process and final stages, not just at the end of the line.
OUR COMMITMENT
The Valve Is Never the Reason Something Goes Wrong
We know the companies buying from us are putting their own reputation on the line with every engine that leaves their shop. Our job is to make sure the valve is never the reason something goes wrong. That commitment shapes how we hire, how we invest in equipment, and how we handle every inquiry — whether it’s a single sample order or a multi-container OEM contract.