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Expanding our UK Manufacturing with New CNC Investment

01 Dec 25

Harwin and Star GB employees

We have announced the acquisition of seven new CNC sliding headstock lathes supplied by Star Micronics GB Ltd. Adding these machines significantly increases our capacity for manufacturing high-reliability connectors.

The purchase follows heightened demand for our connector ranges - particularly Gecko - and increased investment in R&D. This increased capacity will come into effect from January 2026, when the first two Star SL-7 sliding-head lathes are delivered to our Portsmouth manufacturing plant. Capacity will continue to ramp up during the first half of the year, with additional new lathes being added in February, March and April. 

Harwin continues to make significant investments in its UK manufacturing capacity, and the addition of these new machines represents a major milestone in the next phase of our expansion. 

Star's high-precision sliding head machines are integral to our HRi product range. By combining this advanced, reliable equipment with our highly skilled workforce, premium raw materials, and innovative structural design features, we can deliver critical components that underpin the exceptional ruggedness and performance of our HRi products.

- Jon Churchill, COO

This investment also strengthens our long-standing partnership with Star GB, increasing our total number of Star lathes to 56. 

Our expanded capacity is supported by the broad range of Star technology already in use at our Portsmouth site. The facility operates SD-26 Type E and SR-20RIV Type B machines, providing versatile, high-precision machining across mid-range diameters. 

These are complemented by SL-7 and SR-10J models, which specialise in producing very small, highly accurate components. This capability is complemented by several SW-12RII models, delivering high-speed twin-platen machining for complex, multi-feature components. 

Turning Shop at Harwin HQ

Together, these platforms give us a well-balanced mix of capacities, enabling efficient production of both miniature connector elements and more demanding geometries, while maintaining the precision and repeatability required for our high-reliability product range.

This latest phase of investment underscores our commitment to maintaining world-class manufacturing in the UK and ensuring rapid, resilient supply for our global customer base. By combining advanced automation with in-house expertise, we continue to strengthen our position as a trusted partner for mission-critical connectivity solutions worldwide.

We’re proud to continue our close collaboration with Harwin as they expand their UK manufacturing footprint. Our technology is designed to deliver the precision, repeatability, and reliability that Harwin's interconnects demand and we look forward to working with them into the future.

- Stephen Totty, Star GB’s Managing Director