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Swiss CNC
Machining

for Tight Tolerances
and Complex Designs

Swiss CNC machining produces high-precision parts with tight tolerances and complex geometries. At Twin City EDM & MFG, we specialize in machining long, small-diameter parts using 7- to 9-axis Swiss machines capable of lights-out manufacturing. These machines offer superior stability, speed, and repeatability—ideal for mission-critical industries like medical, aerospace, and defense.

Unlike standard lathes, Swiss machines support the material with a guide bushing close to the cutting tool. This reduces deflection and allows for ultra-precise motion control. Our equipment delivers tolerances down to ±0.0001″, making it possible to meet exacting requirements in high-volume production.

Precision Performance at Every Step

Our Swiss CNC machining capabilities support projects that require consistent, multi-featured parts without sacrificing speed or quality. We can produce a few prototypes or tens of thousands of components in-house.

We work with a wide range of materials, including:

  • Metals: Stainless steel, aluminum, titanium, brass, nickel, and dual-phase steels
  • Polymers: Polyurethane, thermoplastics, thermoset elastomers, ceramic
  • Other Materials: Plastics, ceramics, Delrin, graphite, and conductive composites

Which are ideal for parts requiring:

  • Long, slender profiles up to 4 feet in length
  • Diameters from 0.010″ to 1.50″
  • Complex external and internal threads
  • Cross holes, off-center features, and polygon shapes
  • Tight feature tolerances, with motion increments as fine as 0.000039″
General Capabilities
Boring, Deburring, Drilling, Grinding, Knurling, Milling, Polishing, Reaming, Turning
Special Capabilities
Broaching, Deep-Hole Drilling, Hard Milling, Hobbing, Shaping, Slotting, Heavy Cutting, Angular Cutting, Polygon Cutting
Threading Process
External Thread Cutting, Internal Thread Cutting, Tapping, Thread Milling, Single Point Threading, Thread Whirling
Machinery Axis
7 to 9
Equipment Capabilities
CNC Control Capabilities, Swiss Machining, Multiple Spindles, Simultaneous Cutting (Main and Sub), Cross Drilling, Off-Center Drilling, Automation Capabilities
Metal Materials
Stainless Steel, Aluminum, Titanium, Brass, Nickel, Dual Steel
Rubber Polymer Materials
Polyurethane, Silicon, Thermoplastic Elastomers, Thermoset Elastomers
Other Materials
Plastic, Ceramic, Delrin, Graphite, Composites
Length
0 to 12 ft
Diameter
0 to 1.25 Inch, 0 to 32 mm
Tolerance/Accuracy (+/-)
0.0001 Inch
Motion Incrementation
0.000039 Inch
Inspection
Hexagon CMM, Smart Scope (Zip Lite) Vision Systems, Keyence Instant Measurement System, and Sylvac scan
Testing
Pull, Mag Particle, Pressure, Quality Assurance Program
Production Volume
Prototype to High-Volume Production
Typical Lead Time
3 to 4 weeks
Efficiency
Lights-Out Manufacturing, Lean Manufacturing
Industries Served
Medical, Surgical, Aircraft, Aerospace, Defense
Industry Standards Met
ASTM 485, MIL-W-13855, MIL-L-45208A, MIL-Q-9858A, ISO 9001:2015 Certified, ISO 13485:2016 Compliant
File Formats Accepted
SolidWorks, MasterCAM

Supporting Regulated and High-Precision Industries

Twin City EDM & MFG’s Swiss machining department supports industries that demand uncompromising accuracy and reliability:

  • Medical and Surgical Instruments
  • Aerospace and Aircraft Components
  • Defense Systems and Sensitive Devices
  • Veterinary and Orthopedic Tools

As an ISO 13485:2016 and ISO 9001:2015-certified, FDA-registered manufacturer, we maintain full quality control and documentation. We follow industry-specific standards, including ASTM 485, MIL-W-13855, MIL-L-45208A, and MIL-Q-9858A, to support client compliance.

Why Work With Twin City EDM?

  • Decades of experience producing highly detailed Swiss-turned components
  • Full in-house support, including programming, tool design, and inspection
  • Temperature-controlled facility housing all 14 Swiss turning machines under one roof
  • Multi-process integration with CNC turning, EDM, and value-added services

For assemblies or parts requiring multiple operations, we provide a seamless transition from turning to finishing with no compromise on quality or lead time.

Ready to Quote Your Swiss CNC Project?

Whether you’re scaling production or solving a design challenge, our team can
help you move from concept to finished component with confidence.
Request a quote or contact our team today to get started.

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