info@gunther.co.uk
The KNARR Webshop – Smart, Simple, and Reliable.
On-Line 24/7 Shop
At Gunther UK, we’re proud to offer the full range of KNARR precision components through our user-friendly online webshop. Designed for speed and simplicity, the KNARR platform lets you easily search, compare, and order exactly what you need — helping you save time and streamline your purchasing process. 3D data in various formats is also easily and quickly accessed.
The KNARR system is fully compatible with the two other major component suppliers on the market, allowing seamless integration with existing tooling and mould base standards. Switching or consolidating suppliers has never been easier.


With competitive pricing and one of the largest stockholdings in Europe, KNARR ensures exceptional value and quick availability — so you get the right parts, at the right price, exactly when you need them.
Getting started is simple — all you need is a quick and easy registration to access the full webshop and begin ordering right away.
Experience the modern, efficient, and dependable way to source components — backed by Gunther UK’s trusted local expertise and support.
What our clients say
We’ve used Gunther Hot Runner Systems, OptiMach special machining, and Knarr collapsible cores via Gunther UK for a number of years. The quality is always exceptional and the service is responsive and reliable.
New Tooling Manager
Major UK OEM
Gunther’s demonstrated technical knowledge allow us to confidently provide working, robust moulds that produce consistent parts. Delivering a quality product and incredible support are more important today than ever before, Gunther never fails to deliver this, which in turn helps us to provide the same service to our customers. I can’t recommend them enough.
UK Toolmaker/moulder
We’ve been working with Gunther UK since 1988, and they’ve never let us down. The combination of personal service, trustworthy advice, and consistently high-quality hot runner systems and mould components has cemented our relationship over three decades. They feel less like a supplier and more like a partner we can rely on.
Gary Statham
Neptune Injection
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