Stainless steel CNC machining service

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Our stainless steel CNC machining services

Penta Precision delivers high-quality stainless steel CNC machining services to engineers, manufacturers, and OEMs across the UK. We combine expert craftsmanship, advanced machining technology, and ISO 9001:2015 standards to produce reliable, custom stainless steel parts. Whether you're building prototypes or scaling production, we ensure your parts meet exact specifications.

Our CNC machining steel service is built for consistency and control. We use advanced CAD/CAM systems, automation, and a skilled team to maintain high quality across all quantities. You can rely on us for both rapid prototyping and large-scale production runs.

Every project receives individual attention from design to delivery. We offer design for manufacture advice to help optimise part performance and cost. Our stainless steel CNC machining service ensures you get parts that are right the first time.

Stainless steel milling

We provide CNC milling stainless steel parts to tight tolerances with outstanding repeatability. Our automated machining centres run around the clock to deliver parts efficiently and consistently. You benefit from fast turnaround and cost-effective production regardless of batch size.

Stainless steel is tough, but our team has the experience and tooling to handle it. We understand how to cut stainless steel cleanly while maintaining surface integrity and dimensional accuracy. Our process gives you precision parts that are ready for use.

We can work from CAD models, engineering drawings, or even sketches. Our CNC stainless steel milling capabilities are backed by modern CAD/CAM integration for full control. We deliver machined stainless steel parts that meet both functional and visual requirements.

Stainless steel turning

We produce stainless steel turned parts using multi-axis CNC lathes with 24-hour automation. Our process ensures consistency across single prototypes or high-volume production. You get stainless steel turning parts that are accurate, repeatable, and delivered on time.

Our team is skilled in both complex geometries and tight tolerances. Whether you need basic shapes or intricate designs, our stainless steel turning service meets the challenge. We offer excellent value through efficient setups and robust quality control.

Our machining services

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View all services

Finishing Options

We offer a range of finishing processes to improve the appearance, durability, and function of your machined stainless steel parts. Available finishes include:

  • Polishing
  • Bead blasting
  • Anodising
  • Plating
  • Passivation
  • Part marking

Components & applications

We machine stainless steel parts for a wide variety of industrial uses. Our components are used in environments where strength, hygiene, or corrosion resistance are critical. We work closely with customers to ensure parts are fit for function and built to last.

Here are some examples of the types of components we manufacture from stainless steel:

Fluid & vacuum

Stainless steel offers strength and corrosion resistance, making it ideal for high-pressure and demanding environments.
- Pressure vessels
- Connectors

Rotating, sliding & wear

With excellent wear resistance, stainless steel is widely used for precision parts that undergo motion and load.
- Pivots
- Bushes
- Bearings
- Sleeves

Structural & mounting

Strength and durability make stainless steel the go-to for critical load-bearing and support elements.
- Flanges
- Brackets
- Beams
- Spacers

Housing & enclosure

Stainless steel casings and enclosures provide protection, hygiene, and reliability across industries.
- Enclosures
- Casings

Medical & surgical

Biocompatibility and resistance to corrosion mean stainless steel is trusted for medical devices and instruments.
- Surgical instruments

Fastening & functional fittings

Hard-wearing and resilient, stainless steel is well suited to secure and precise joining components.
- Pins
- Hooks
- Buttons

Tooling & support

Stainless steel’s durability makes it an excellent choice for jigs, fixtures, and production support.
- Tooling

Common industry applications

Stainless steel CNC equipment we use

Matsura MAM72-35V

Automated 5-axis CNC Milling
Max. Work Size: Ø350 mm x H300 mm
Travel X / Y / Z: 550 / 440 / 580 mm
32 pallets, 240 cutting tools

Doosan VC630 5AX

5-axis CNC Mill
X-Axis Travel: 650 mm
Y-Axis Travel: 750 mm
Z-Axis Travel: 500 mm

Mazak Quick Turn 200MY

CNC Lathe
Chuck size: 8"
Max. machining dia: Ø380 mm
Max. processing length: 38 mm / 1047 mm

Mazak Quick Turn 100M

CNC Lathe
Chuck size: 6"
Max. machining dia: Ø280 mm
Max. processing length: 340 mm

CMZ TL20 MS

CNC Lathe
Max bar dia: Ø65 mm
Max bar length: 1100 mm
Max billet dia: Ø270 mm

CMZ C20 YS

CNC Lathe
Max bar dia: Ø65 mm
Max bar length: 1050 mm
Max billet dia: Ø230 mm

Doosan Puma 2600SY

CNC Lathe
Max bar dia: Ø65 mm
Max bar length: 1100 mm
Max billet dia: Ø270 mm

CMZ TL20 MS

CNC Lathe
Max bar dia: Ø65 mm
Max bar length: 1000 mm
Max billet dia: Ø350 mm

Doosan DNM 500

5-axis CNC Mill
X-Axis Travel: 1000 mm
Y-Axis Travel: 500 mm
Z-Axis Travel: 500 mm

Doosan DNM4500 4AX

5-axis CNC Mill
X-Axis Travel: 800 mm
Y-Axis Travel: 450 mm
Z-Axis Travel: 510 mm

Bridgeport VMC1000 4AX

4-axis CNC Mill
X-Axis Travel: 1000 mm
Y-Axis Travel: 600 mm
Z-Axis Travel: 600 mm

Bridgeport VMC 600 4AX

CNC Mill
X-Axis Travel: 600 mm
Y-Axis Travel: 400 mm
Z-Axis Travel: 350 mm

Bridgeport VMC 760

CNC Mill
X-Axis Travel: 760 mm
Y-Axis Travel: 600 mm
Z-Axis Travel: 480 mm

Bridgeport XR1000

CNC Mill
X-Axis Travel: 1000 mm
Y-Axis Travel: 600 mm
Z-Axis Travel: 600 mm

Bridgeport VMC 500

CNC Mill
X-Axis Travel: 550 mm
Y-Axis Travel: 350 mm
Z-Axis Travel: 350 mm

What our clients say

Leanne
Senior buyer at bicycle firm
We’ve worked with Penta on several complex projects, and their consistency and attention to detail have been second to none. The team is quick to respond and flexible.
Andrea
Buyer
Penta is highly recommended for their quality, responsiveness and customer service. We have experienced a lot of change with our parts and Penta has always accommodated the adjustments needed in a timely manner. The quality is 100%.
Mark
Senior buyer at coffee brand
The quality of the plastic mouldings you machined were exceptional.

Examples of our high-quality CNC machined components

Stainless Steel Component

CNC Milling
316 Stainless Steel

Fuel and Gas Component

CNC Milling
Stainless steel

Space Component

CNC Milling
316 Stainless Steel

More about stainless steel CNC machining

Case study

Driving Innovation: Stainless Steel Prototype Delivered Against the Odds

Penta's prototype component service helps a UK domestic appliance company meet a tight product development deadline.

Common questions