Precision CNC Micromachining

What is Micromachining?

Micromachining is a service catering to the production of extremely small, intricate components. It typically involves tight tolerances and fine surface finishes, all achieved using specialized tools and equipment designed for miniature-scale manufacturing. It requires working with very small bar stock and tooling designed to create high-precision features including tiny threads, thin part walls, miniature holes, and micro-slots. The benefits include high precision of critical components, repeatable quality yielding part consistency over high volumes, wide material ranges supported, and with higher consistent quality our customers see cost savings for assembly due to fewer issues with part fit and better tolerances yielding to quicker assemblies.

When micro precision is paramount, we turn to the Tornos Swiss Nanos for miniature parts machining. These machines are designed to meet demands for extremely small, high-precision workpieces. With 8 axes of motion, 2 independent tool systems, and a flexible machining area, it’s the ideal choice for a broad range of micro workpieces requiring quality, precision, and efficiency. Available to produce high volume screw machined products, Cox machines up to 1.7 million precision components every week.

What is the process of Micromachining?

Cox Manufacturing has invested in additional NSK High-Speed spindles to be retrofitted to existing Swiss CNC machines. These spindles are optimized for compact sized CNC lathes.  Feature include sensorless motors that are equipped with super precision hybrid ceramic bearings for longer spindle life. They allow us to run micro tooling at the RPM required to achieve the proper surface-feet per minute.

Cox has recently purchased 7 Tsugami P036W Swiss CNCs. These machines are in addition to the Tornos Swiss Nanos we already own, allowing us to meet demands.The Tsugami P036W Swiss CNC machine is engineered for the most demanding small-part applications—down to 1/8" capacity—with incredible accuracy and efficiency.

Built on a thermally stable fine grain cast iron base, the P036W offers exceptional rigidity, ensuring long-term reliability and consistent performance. With 0.1-micron axis resolution, we achieve ultra-tight tolerances for even the most intricate components.

The P036W is equipped with 18 versatile tool positions and an independent opposed tool slide, giving us the flexibility to handle complex geometries and rapid part changes. Its main and back spindles reach speeds up to 20,000 RPM, allowing us to meet optimal surface feet per minute even on the smallest diameters—something critical in high-precision micromachining.

Thanks to its innovative split-slide design, we’re able to minimize chip-to-chip time to under one second, maximizing efficiency without sacrificing precision.

Whether you need high-volume micro components or complex custom parts, the P036W is the cornerstone of our micromachining capabilities—designed to deliver exceptional quality, repeatability, and speed.