PRECISION CNC MACHINING · PLYMOUTH, WISCONSIN

Precision parts for aerospace, defense and demanding industries where precision matters.

Production runs and repeat parts, built to the same standard every lot. ISO 9001:2015 and AS9100:2016 Rev D Aerospace certified.

See us in action

Watch us work.

Running now in Plymouth, WI
CNC turning under coolant
Automated part loading
Thread gauge inspection

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What we do

Precision parts, start to finish.

Production CNC machining for repeat parts. One PO, finished parts.

Industries we serve

Many industries. One standard.

  • Aerospace
  • Defense
  • Medical
  • Fluid power
  • Ag
  • Lighting
  • Industrial brushes
  • Automotive
  • Food equipment
  • Packaging
  • Pumps & valves
  • Plumbing
  • General industrial

…and many more. If it needs precision, we machine it.

CNC Swiss turning • Live-tool lathes • Vertical & horizontal machining • Automated cells • ISO 9001:2015 • AS9100:2016 Rev D • We make difficult parts routine •

CNC Swiss turning • Live-tool lathes • Vertical & horizontal machining • Automated cells • ISO 9001:2015 • AS9100:2016 Rev D • We make difficult parts routine •

Government supplier code

CAGE 30PA6

Since 1992

Plymouth, Wisconsin

Aerospace certified

ISO 9001:2015

Certified quality management

AS9100:2016 Rev D

CORE STRENGTHS

Everything your part needs, under one roof.

From first chip to final inspection. Finishing managed for you.

01 Precision CNC Machining

Turning, milling and Swiss-style work to close tolerances.

02 Production Runs

Proven once, then run the same way every lot.

04 Finishing & Secondary Ops

Plating, heat treat, anodizing and more, managed for you.

03 State-of-the-Art Inspection

In-house CMM and profile measurement, fully traceable.

Automated CNC machining cell at PBI

Automated CNC turning cell — production capacity for repeat runs.

WHY PBI

We make difficult parts routine.

Repeat parts, made right and delivered on schedule.

  • Quality and consistency

  • On-time delivery, short lead times

  • Automated production capacity

  • In-house production, run after run

  • Cost-effective for ongoing programs

FROM OUR SHOP FLOOR

Work that speaks for itself.

Real parts, made in Plymouth, Wisconsin — from production-turned brass to precision aluminum and steel components.

Turned brass and stainless fittings
Brass bushing in a CNC lathe chuck
Brass parts in an inspection tray
Polished brass dome part
Polished brass tube
Precision brass bore close-up
Bin of machined aluminum production parts at PBI
Machined brass pyramid cap
Turned aluminum production parts
Knurled brass wheel
Machined aluminum production parts in bulk
Brass part on a CNC lathe

MATERIALS WE MACHINE

Stainless steel · Aluminum · Brass · Steel alloys · Titanium · Plastic · Monel K-500 and other specialty alloys

Our People

A great place to work.

We treat our people well, and it shows in every part we ship.

Meet our team →
Perma-Brass team celebrating in the break room
Celebrating together
Machinist setting up an automated CNC cell
Hands-on at the cell
Perma-Brass employees sharing a team lunch
Team lunch

REQUEST FOR QUOTE

Have a production part to quote?

Send your drawing, material and quantities. We'll come back with a clear, competitive quote.

Or call the office: 920-892-6100

About PBI & our team

Machined stainless flange part at PBI

937 Pilgrim Road, Plymouth, Wisconsin