About SIAMSPRING

A spring manufacturing plant in Rayong, Thailand, producing custom springs and wire forms for overseas distributors and OEMs.

SIAMSPRING is a spring manufacturing plant in Nikhom Phatthana, Rayong, Thailand. We produce custom springs and formed wire parts to drawing, and we sell mainly to overseas distributors and equipment manufacturers.

SIAMSPRING is the overseas brand of AOFENG SPRING (THAILAND) COMPANY LIMITED, which owns and operates this plant in Rayong.

What we are set up to do

Our machinery and processes are aimed at small and mid-sized precision parts: wire diameters from 0.08 mm up to 6.0 mm, in carbon steel and a range of stainless grades, with heat treatment and end grinding handled in-house.

We are deliberately not set up for high-volume commodity springs, where the competition is a price race across a very narrow specification. Our work is the opposite: fewer parts, more drawings, and buyers who care about consistency and documentation.

Heat treatment on site at the Rayong plant

How we work with overseas buyers

English is the working language for quotations and technical discussion. We quote from your drawing, run a prototype, and continue into production once you have approved the sample. Documentation is prepared as part of the job, not as a favour afterwards.

Visiting

The plant is in the Rayong industrial area, roughly two hours from Bangkok. Let us know before you travel and we will arrange a date.

Request a quote

Send your drawing or specification and we will come back with pricing and lead time. If you do not have a drawing, describe the application and we will work from that.

Request a quote