Honing & Polishing

Once our plungers have been machined and to ensure the quality of the surface finish, they are vertically honed and polished to achieve a surface finish of less than 0.058Ra with a mirror-like finish. At this stage, the components then go through a final inspection process to check the internal profiles and ensure the surface finish meets the specifications.

Quality and reliability at our core

Modern workshops with CNC technology

The leader in precision glass engineering

Deliver excellence to our customers

High quality and accurate machining

ISO9001 since 2010

Frequently Asked Questions

Browse our frequently asked questions to help you find the answers to any questions you may have. If you cannot find the answer to your question please feel free to get in touch with the team.

We’re proud to say that we can achieve any RA finish that’s required by our customers.

We use portable surface roughness testing machines.

Meet the Team

Our success is built on our solid business foundations, our expertise in precision engineering and our outstanding people.

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The service we received from Hunprenco was second to none. I would definitely recommend them to any business looking for high quality plungers and coolers.

Alan Ridge
Technical Director

The whole team at Hunprenco are easy to work with. They understood our requirements straight away and delivered a solution that more than met our needs and expectations.

Ted Beasley
Managing Director

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Request a call back and a member of our team will call you to discuss your requirements.

Get in touch

Call us on
+44 (0)1723 890 105

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