Swiss-Type & Sliding Head Machining UK
Swiss-type machining, also known as sliding head or sliding headstock turning, is a specialist CNC turning process designed for the high-precision, high-volume production of small-diameter components. Originally developed for the Swiss watch industry, this technology is now the process of choice for manufacturing precision turned parts for medical devices, electronics, automotive, aerospace, and telecommunications applications.
This category lists UK subcontract Swiss-type and sliding head turning companies who specialise in the production of small, complex, high-precision turned components.
How Swiss-Type Machines Work
Unlike conventional CNC lathes where the workpiece is held in a fixed chuck and the tool moves, Swiss-type machines feed the bar stock through a guide bushing that supports the material close to the cutting point. This virtually eliminates deflection, enabling very tight tolerances and excellent surface finishes on small-diameter and long-slender components that would be difficult or impossible to turn on a conventional lathe.
Modern Swiss-type machines are highly capable multi-axis machining centres, typically equipped with a main spindle, sub-spindle, and multiple tool stations including live (driven) tools for off-centre drilling, milling, cross-drilling, and polygon machining. Many machines also incorporate Y-axis capability and back-working stations, enabling complete component manufacture — including features on both ends — in a single unattended cycle from bar stock.
Typical Components and Applications
Swiss-type machining excels at producing components with diameters typically from 0.5mm to 32mm (though some machines handle up to 38mm or larger). Typical components include bone screws and dental implant abutments (medical), electrical connector pins and socket contacts (electronics), fuel injector components and sensor housings (automotive), and miniature shafts and actuator components (aerospace).
The process is most cost-effective for batch quantities from several hundred to millions of components, where the high capability and unattended running of Swiss machines delivers excellent per-part economics despite higher hourly machine rates compared to conventional lathes.
Quality and Precision
UK Swiss-type machining companies routinely achieve dimensional tolerances of plus or minus 0.005mm and surface finishes of Ra 0.2 or better. Many hold ISO 13485 for medical devices and AS9100 for aerospace, reflecting the sectors they predominantly serve. In-process gauging and statistical process control (SPC) monitoring are standard practice for production runs.
Browse this directory to find UK Swiss-type machining specialists who match your component size, material, volume, and quality requirements.