Prototype Productions Limited

Sliding Head Mill-Turning

High-Speed, High-Precision Machining

At Prototype Productions Ltd, we operate four advanced sliding head CNC lathes—starting with our first installation in 2014 and most recently expanding with the Star SX-38 Type A in 2025. These machines dramatically reduce cycle times while delivering exceptional precision and surface finish across a wide range of components.

Engineered for rigidity, versatility, and micron-level accuracy, our sliding head lathes consistently hold tight tolerances on both simple and complex geometries. With a machining capacity of up to 42mm diameter and a combination of fixed and live tooling, we produce:

• High-volume production runs of standard parts
• Intricate, multi-featured components with demanding geometries

We’ve successfully machined parts as small as 0.8mm in diameter, showcasing the finesse and control of our equipment in micro-scale manufacturing.

We’re proud to introduce the Star SX-38 Type A—our latest investment in cutting-edge CNC technology. This 12-axis sliding head lathe delivers high-speed, high-precision machining for complex components up to 42mm diameter. With dual 7,000 rpm spindles, a 10-station turret, and up to 80 tool positions, it’s built for versatility, speed, and uncompromising accuracy. Ideal for aerospace, medical, automotive, and advanced electronics, the SX-38 enhances our capability to meet the most demanding mill-turn requirements—faster, smarter, and with absolute precision.

Our sliding head lathes


SX-38 Type A

Precision redefined. With 12 axes, dual high-speed spindles, and unmatched tooling capacity, it’s the ultimate solution for complex, high-volume mill-turn operations.


SR-20J Type C

Innovative machine configuration provides high productivity by significantly reducing non-cutting time.


SR-32 J

High rapid feed rate and a power-driven sub-spindle tool greatly reduce processing time.


SR 20 JII Type B

The SR-20JII Type B represents the latest evolution in 20mm sliding head machining – and the most advanced technology of its type on the market.

Testimonials

“Prototype Productions has been a great supplier to work with, and they have always provided high quality products. their customer service is always great and We will look to continue developing the relationship moving forward.”

“A valued business partner! Excellent service, fast deliveries and high level of standards. We have worked with Clive and his team for a while now and have found them professional and thorough in all aspects of their job from the beginning to end.

"We are a leading manufacturer of surgical power tools that distribute worldwide. I have worked with Clive and his team of engineers at Prototype Productions for over 15 years. They have consistently delivered high quality components to us. "

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