Photochemical Etching

Since 1991, we at Tongjin Technology have been a leader in the manufacturing of thin precision metal parts as well as providing complete photochemical milling services. Also known as photo etching, photochemical milling, and chemical milling, photochemical machining (PCM) is the process of fabricating sheet metal components using a photoresist and etchants to corrosively machine away selected areas. This process emerged in the 1960’s and can produce highly complex parts with extremely accurate detail. An economical alternative to laser and water jet cutting, stamping, punching, or wire EDM, our PCM capabilities allow us to quickly change the design of a part just by changing the design of the tool. This inexpensive and quick tooling makes our services ideal for prototyping, allows for easy changes in mass production. Our advanced chemical milling machines can maintain dimensional tolerances without creating burrs or sharp edges and can work with many commercially available metals or alloys of any hardness with a thickness from 0.0005″ to 0.040″.

A one-stop shop for precision metal components, we can manufacture parts to exact specifications within a short period of time, whether it calls for a flat blank or something more complex and in a variety of forms or finishes. From one piece prototypes to large volume production runs, all work is done to the highest quality standards. To learn more about our photochemical machining, contact us or see the table below.

Customer Reviews

I am extremely impressed with the precision...
Swapnil from United StatesWednesday, Jan 26, 2019
"I am extremely impressed with the precision and quality of the chemical etching performed by your team. The intricate designs on our metal components were etched flawlessly, exceeding our expectations. Thank you for delivering such a high-quality product."
Your chemical etching service has significantly improved the durability...
Sarah from United KingdomWednesday, Jan 20, 2020
"Your chemical etching service has significantly improved the durability and functionality of our products. The etched patterns not only enhance the aesthetics but also provide excellent grip and tactile feel. Our customers are thrilled with the results, and we couldn't be happier with your exceptional craftsmanship."
We have been relying on your chemical etching expertise for several projects...
Eduardo from ItalyWednesday, Mar 16, 2022
"We have been relying on your chemical etching expertise for several projects, and each time, you have consistently delivered outstanding results. Your attention to detail, quick turnaround time, and excellent customer service make you our preferred choice. Your commitment to excellence is commendable."
has given our brand a unique edge in the market...
Taner from TurkeyFriday, April 26, 2023
"The chemical etching performed by your team has given our brand a unique edge in the market. The intricate logos and designs etched onto our products have attracted significant attention and set us apart from our competitors. We appreciate your professionalism and skill."

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