Renishaw QC20 Ballbar Testing & ISO 230-4 Reports (UK)

Independent, ISO-referenced proof of your machine's geometry.

Renishaw QC20 ballbar tests give you a documented measure of circularity, backlash, squareness and reversal error against ISO 230-4. For quality audits, warranty disputes, post-repair verification, or chasing down an intermittent finish issue.

Request a callback 0330 633 2321

Where we work

Walsall-based, Midlands-wide.

King CNC is based in Walsall, West Midlands. Ballbar testing is done on your machine in your workholding environment. Routine testing is scheduled across Walsall, Birmingham, Wolverhampton, West Bromwich, Oldbury, Dudley, Coventry and Cannock, and we travel UK-wide for audit and warranty jobs. Call 0330 622 2321.

Why customers pick up the phone

When to book a test

Ballbar testing is diagnostic and evidential. If a customer, auditor or warranty desk needs numbers, this is how you get them.

0330 633 2321 Mon-Fri 8am-5pm

Aerospace or defence audit coming up and you need geometry evidence
Warranty dispute needing an independent report
Post-repair verification after a ballscrew or spindle job
Acceptance test on a new machine after installation
Intermittent quality issue and you're out of ideas
Baseline snapshot before you sign a service contract

What's typically included

The shape of the work.

No two machines or sites are the same. Scope on the day is set by what we find. Use this as a guide, not a checklist.

On-site ballbar testing on your machine, in your workholding environment
Written report referencing ISO 230-4 diagnostic categories
Follow-up recommendations if defects are picked up
Repeat testing after any corrective work to prove the fix

Why choose KingCNC

What you can rely on.

Renishaw-partner accreditation
Reports suitable for aerospace and defence quality audits
Bundled with servicing where you want a full geometry snapshot

Brands & controllers we support

Any CNC machining centre or lathe
Fanuc, Siemens, Mitsubishi, Heidenhain controls
Vertical and horizontal machining centres
Turning centres and multi-axis lathes

Common questions

What people ask us about Renishaw Ballbar Testing.

Straight answers. If yours isn't here, ring us and we'll answer it in a minute.

Are your reports accepted by aerospace and defence audits?

Yes. Our engineers are Renishaw-accredited and our reports reference ISO 230-4 categories that quality auditors already know how to read. Multiple defence and aerospace customers use these reports as audit evidence.

How long does a ballbar test take?

A single-plane test on a standard VMC is around 30 minutes on the machine. Multiple planes, or before-and-after tests around a repair, take longer. Most jobs are in and out inside half a day.

Can I have testing bundled with a service?

Yes. Combining ballbar testing with a routine service gives you a full geometry snapshot in the machine file. Useful before a big job, or when you're trying to catch drift before it costs you parts.

What does the test actually measure?

Circularity, backlash, squareness, reversal spikes, servo mismatch, scale mismatch, cyclic error and lateral play. Each maps to an ISO 230-4 diagnostic category so the fault is traceable.

Request a callback

Talk to us about Renishaw Ballbar Testing.

Tell us the machine and whether this is for audit, warranty or troubleshooting. We'll scope the visit.

0330 633 2321 Mon-Fri 8am-5pm
service@kingcnc.co.uk

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