Established in 1988 as the sole UK agent for Günther Heisskanaltechnik GmbH, Gunther UK has grown to become a trusted supplier of precision hot runner systems and mould components for the injection moulding and tool-making industry across the UK and Ireland.

Our portfolio has strengthened over the years and now features market-leading solutions from two German manufacturers—Günther and Knarr—alongside high-quality coupling systems from RTC in Turkey. We have also developed our own mould base brand, OptiMach® , giving customers access to a broader range of tooling solutions from a single technical partner.

We are committed to supplying reliable components designed to support consistent moulding performance, long service life and reduced downtime. This is complemented by UK-based guidance, technical support and product advice to help you maximise efficiency across your moulding operations.

Our customers span sectors including medical, automotive, packaging, household and electrical applications, with each benefitting from responsive service and component availability.

Continual improvement sits at the heart of our business. By expanding our selection of moulding solutions, we now support a wider scope of tooling needs—simplifying procurement and helping you maintain quality throughout your production process.

Today, we proudly source world-class engineered solutions from four specialist German manufacturers. Our focus on precision, reliability and long service life has helped us become a recognised name in moulding technologies, supporting businesses of all sizes in improving production quality and efficiency.

Alongside our carefully selected product portfolio, we provide guidance, technical support and tailored service to help customers achieve consistently strong moulding performance. With UK-based expertise on hand, we have earned a reputation for dependable support across key sectors including medical, automotive, packaging, household and electrical applications.

From our earliest days, we have continued to refine and expand our offering to meet the full range of tooling requirements, allowing our customers to source trusted solutions in one place. Whether supporting new tooling projects or helping to optimise existing moulds, Gunther UK stands as a knowledgeable partner committed to long-term customer success.

In addition to products that are at the top end of the market, we also offer full advice, service and support to maximise the customers’ moulding operations. Using our dedication to UK-based service back-up, we have built an enviable reputation in all market sectors of the injection moulding industry – medical, automotive, packaging, household and electrical to name just a few.

Since our early beginnings, we have sought to improve and have developed our product portfolio so that we can meet all the customers’ tooling needs, thus becoming a ‘one-stop shop’ for you.