Swiss Machining for Complex, Tight-Tolerance Components

When your application requires exceptional precision, repeatability, and efficiency for small, complex components, Swiss machining is one of the most capable manufacturing processes available. At GrovTec Machining, we provide precision Swiss CNC machining services for OEM manufacturers that demand consistent quality, tight tolerances, and dependable production deliveries.

Our Swiss machining capabilities support prototype development through high-volume production for customers in aerospace, defense, medical, electronics, energy, and other demanding industries where quality cannot be compromised. Whether you’re sourcing miniature medical components, precision connector pins, aerospace bushings, or high-volume turned products, our team works with your engineering and procurement teams to manufacture components that meet your quality, delivery, and performance requirements.

As a leading Oregon screw machine shop, we love mid to high-volume production runs. With that being said a large part of our success has been being able to run and ship to blanket releases. We do not require minimum order quantities; however, higher order volumes allow us to spread setup costs across more parts, reducing the per-part price. Please consider this when planning your production orders.

Efficient High-Volume Production

Once a Swiss machine is set up, it can manufacture thousands or even millions of identical parts with excellent consistency. For OEM manufacturers requiring repeatable production over multiple releases, Swiss machining provides outstanding long-term value.

The ultimate advantage of our Swiss department is the drastic reduction in handling time and labor costs. By eliminating the need to move parts between workstations, we maintain a higher level of concentricity and structural integrity.

For our clients, this means faster lead times, lower costs per part, and the peace of mind that comes from precision swiss machining.

Our Citizen Swiss Machines

GrovTec Machining’s Swiss CNC department is centered around 18 Citizen Swiss CNC turning centers, allowing us to efficiently manufacture complex precision components with exceptional consistency.

Our equipment mix enables us to support both small-diameter precision components and larger, more complex parts while maintaining the repeatability required for production manufacturing.

Citizen L16 Type XII

14 Machines

The Citizen L16 Type XII is optimized for manufacturing small, high-precision components that require multiple machining operations during a single cycle.

Capacity

• Maximum bar diameter: 5/8 inch
• Maximum part length: 28 inches

Typical applications include:

• Medical components
• Precision pins
• Bushings
• Connector contacts
• Shafts
• Fasteners
• Instrumentation components
• Electronic hardware

With fourteen identical machines, GrovTec can efficiently scale production while maintaining consistent quality across large production runs.

Citizen L32 Type X & XII

4 Machines

For larger precision components, our Citizen L32 Type XII machines provide additional capacity while maintaining the same level of dimensional accuracy.

Capacity

• Maximum bar diameter: 1-3/8 inches
• Maximum part length: 36 inches

These machines are well suited for:

• Larger bushings
• Valve components
• Aerospace hardware
• Defense components
• Hydraulic fittings
• Precision shafts
• Industrial equipment components

The larger work envelope allows more flexibility while preserving the advantages of Swiss machining for longer, more complex parts.

Production Volumes

Every manufacturing program has different production requirements. Some customers require a small batch of components for prototype evaluation, while others need a manufacturing partner capable of producing tens of thousands of precision parts with consistent quality over multiple releases.

GrovTec’s Swiss machining department is designed to support both high-mix, low-volume manufacturing and high volume multi year production programs.

Prototype & Low-Volume Production

During new product development, engineers often need small quantities of parts to validate designs, perform functional testing, or support pilot production.

Our Swiss machining department supports prototype and low-volume manufacturing with production quantities beginning around 50 pieces, allowing customers to validate designs before scaling production.

Typical prototype projects include:

• Design validation
• Engineering samples
• Production qualification
• Functional testing
• First Article Inspection (FAI) parts
• Bridge production

Our engineering team reviews every drawing for manufacturability and may recommend design improvements that simplify production, reduce machining time, or improve part quality without affecting function.

High-Mix Manufacturing

Many OEM manufacturers manage hundreds of unique part numbers with varying annual demand.

Our production model is built around high-mix manufacturing, allowing us to efficiently manage multiple programs while maintaining consistent quality and delivery performance.

Benefits include:

• Flexible scheduling
• Repeatable setups
• Reduced lead times
• Consistent documentation
• Reliable delivery for recurring orders

High-Volume Production

For mature production programs, our fleet of 18 Citizen Swiss CNC machines provides the capacity required for long-term manufacturing.

Typical production quantities range from 5,000 to 50,000 pieces, depending on part complexity and customer demand.

Running multiple identical machines allows us to maintain production continuity, improve scheduling flexibility, and support ongoing manufacturing programs without relying on a single machine.

Frequently asked questions

What production quantities do you support?

From approximately 25 to 50 pieces for prototypes up to 10,000 to 50,000+ for production programs.

What part sizes and tolerances can Swiss CNC machining achieve?

Swiss lathes are built for small-diameter, high-precision work, typically handling stock from around 1 mm up to about 32 mm in diameter (some machines go to 38 mm or larger). They routinely hold tolerances in the range of ±0.0002″ to ±0.0005″ (roughly ±0.005–0.013 mm), which is why they’re favored for medical, aerospace, electronics, and micro-mechanical components.

How is Swiss CNC machining different from conventional CNC turning?

The key difference is the sliding headstock and guide bushing. In Swiss-type machining, the bar stock moves axially through a guide bushing while the tools remain stationary in the Z-axis, so cutting always happens very close to the point of support.

Do you machine titanium?

Yes. We machine titanium for medical, aerospace and defense applications.

Do you provide inspection reports?

Inspection documentation is available based on customer and drawing requirements.

Are you AS9100 certified?

Yes. GrovTec is certified to AS9100 Rev D

Are you ITAR registered?

Yes.

What surface finish can you achieve?

Typical finishes are held to 32 RMS or better, depending on material and geometery

What materials can be Swiss machined?

We commonly machine 300 and 400 stainless steel, alloy steel, aluminum, brass, titanium and a variety of engineering plastics.

What is your typical lead time?

On average we are around 6 to 10 weeks. Depending on time of year this can vary so we try and run parts to either a min max or run EAU quantities to inventory and release them throughout the year. This helps eliminate any lead time issues as well as gives you the best possible piece price as our set up costs get amortized over more parts.