Precision centerless grinding machine finishing a steel bar
American Precision Manufacturing

Precision Centerless Grinding Built for Performance.

Tight tolerances. Documented quality. Delivery you can build a schedule around. We grind the parts that keep aerospace, medical, and industrial production lines running.

±0.0001"
Held tolerance
4 µin
Surface finish Ra
24 ft
Bar length capacity
1M+
Pieces per program
Serving manufacturers in
Aerospace Tier-1
FDA-Registered OEM
Global Automotive
Defense Prime
Robotics Innovator
Energy Systems
Aerospace Tier-1
FDA-Registered OEM
Global Automotive
Defense Prime
Robotics Innovator
Energy Systems
Aerospace Tier-1
FDA-Registered OEM
Global Automotive
Defense Prime
Robotics Innovator
Energy Systems
Why Apex

A grinding partner that operates like part of your line.

We don't just cut metal. We own the outcome — from tolerance verification through freight paperwork. When your buyer calls to ask where a part is, we already know.

Sub-Thousandth Tolerances

±0.0001" held all shift, every shift. Cpk data on request for regulated programs.

Two-Week Standard Lead

Multi-shift capacity keeps your schedule on the wall — not on hold behind the last shop's backlog.

Grinders, Not Just Operators

Wheel dressers with decades on the machines. Application engineers on every quote.

Aerospace-Caliber Quality

SPC, calibrated gauges, and PPAP-ready documentation aligned to AS9100 principles.

Prototype Through Production

One partner from first article to a million pieces. No re-quoting when volumes ramp.

Nationwide Logistics

LTL, truckload, and expedited freight across the U.S., Canada, and Mexico.

How We Work

From print to pallet, without the guesswork.

A defined process is what separates a $20M shop from a job shop. Every job we run follows the same four steps — that's how we hold quality when volumes scale.

Start with a Quote
  1. 01

    Quote

    Send a print. Within one business day you get a firm price, lead time, and process notes from an engineer.

  2. 02

    Setup & First Article

    We dress the wheel, run a first article, and share dimensional data before we cut a chip on your production run.

  3. 03

    Production

    SPC on the floor. Calibrated gauges at every station. In-process inspection at defined frequencies.

  4. 04

    Ship & Support

    Parts move on your schedule — kanban, blanket-release, or one-time PO. Full documentation ships with every lot.

Precision ground steel bars stacked in production
TG&P Bar
Ready-to-run stock, delivered on your release schedule.
Capabilities

Specs that hold from first article to the millionth part.

A wide equipment portfolio, disciplined process control, and enough capacity to absorb your volume without pushing your date.

Diameter Range
0.030" – 6.000"
Length Capacity
Up to 24 ft bar / 240" workpiece
Tolerance Capability
±0.0001" (0.0025 mm)
Surface Finish
Down to 4 µin Ra
Prototype Runs
Single-piece to 500 units
Production Runs
1,000 – 1,000,000+ pieces
Full Capabilities
Industries

Trusted where tolerance is non-negotiable.

From landing-gear pins to sanitary rollers, our process is dialed for the industries that live and die by fit and finish.

"Apex holds a tighter tolerance on our servo shafts than the last three suppliers combined. The paperwork is clean and the parts show up when they say they will."
VP of Operations
Robotics OEM
"We qualified them for a critical program in six weeks. FAI packet, capability studies, first PPAP — everything landed on time."
Supplier Quality Engineer
Aerospace Tier-1
"Their VMI program cut our on-hand inventory by 30% without a single line-down. That's the difference maker."
Director of Purchasing
Industrial Equipment

Representative customer voices. Actual customer quotes available on request under NDA.

Quality

Documented. Inspected. Traceable.

Every job runs against a documented process. Every lot ships with paperwork your quality team can audit.

ISO 9001

Quality management system framework aligned to ISO 9001 principles.

AS9100

Aerospace-caliber process discipline for regulated components.

Continuous Improvement

Kaizen events and SPC drive year-over-year gains.

Quality Inspection

In-process and final inspection on every job.

First Article Inspection

AS9102-style FAI packages available on request.

Material Traceability

Heat-lot tracked from mill certificate to shipment.

Certifications shown reflect our quality framework and target standards. Contact us for current certificate copies and audit status.

Ready when you are

Send us a print.
We'll come back with a real number.

Most RFQs get a firm quote and lead time inside one business day. Include material, tolerance, and volume — we'll take it from there.