CNC Machine Tool Services
Service is the entire business. Below is what we actually do on your floor — mechanical, electrical, geometry, installation and emergency response, on most makes and models.
01 — Mechanical
Mechanical CNC repair
Most "the machine is making a noise" calls are mechanical, and most of them are cheaper to fix early. We diagnose from the symptom — taper wear, a finish problem, a repeatability drift, an ATC that mis-picks — rather than swapping parts until it clears.
- Spindle removal, replacement and rebuild coordination; taper inspection and grinding referral
- Ballscrew and linear guide replacement; bearing and support block work
- Backlash, lost motion and thermal growth diagnosis
- Automatic tool changer, carousel, arm and turret repair and timing
- Rotary tables, trunnions, 4th and 5th axis units, pallet changers
- Way covers, wipers, telescoping and bellows covers
- Way lube and auto-lube system faults, gearbox and belt drive service
- Hydraulics, pneumatics, counterbalance and clamping systems
- Coolant systems, through-spindle coolant, chip conveyors and augers
Typical symptoms we get called for
- Poor surface finish or chatter that wasn't there last month
- Growling, whining or knocking under rapid
- Parts drifting out of tolerance across a shift
- Tool changer dropping or crashing tools
- Spindle running hot or tripping on load
- Axis alarms that clear on restart, then come back
Any of these on your floor? Phone triage costs nothing. Send the symptom and machine model and we'll tell you what we think it is before anyone drives anywhere.
02 — Electrical & Controls
Electrical and CNC control troubleshooting
Control work is where OEM training pays for itself. Alarm codes narrow the field; they rarely name the failure. We chase it to the actual component — drive, encoder, cable, I/O card, contactor or parameter — and document what we found.
Controls we work on
- Fanuc — 0i, 16/18/21, 30i/31i/32i series
- Siemens — 810D / 840D / 840D sl, ShopMill and ShopTurn
- Mitsubishi — M700 / M800 series
- Haas — classic and Next Generation Control
- Brother — CNC-C00 / D00 controls
- DMG Mori — CELOS, MAPPS and Fanuc/Siemens variants
What we do
- Alarm and fault diagnosis, servo and spindle drive troubleshooting
- Encoder, linear scale and feedback cable failures
- I/O, ladder and relay logic tracing; safety circuit and door interlock faults
- Parameter backup, restore and recovery after a dead battery or board swap
- Power supply, transformer, contactor and VFD replacement
- Probe and tool-setter setup — Renishaw, Blum, Marposs
- Board-level component sourcing, exchange and repair coordination
03 — Geometry
Alignment, leveling and machine geometry
A machine that was accurate three years ago and isn't now usually has not broken — it has moved. Foundations settle, rigging shifts things, crashes take squareness out. Geometry work is measurable, documented and a fraction of what a scrap run costs.
- Precision leveling and foundation checks
- Laser alignment: axis straightness, positioning accuracy and repeatability
- Ballbar circularity testing for servo tuning, backlash and reversal spikes
- Squareness and perpendicularity between axes
- Spindle sweep, taper runout and tram verification
- Pitch error and backlash compensation table updates
- Post-crash inspection and accuracy recovery
- Before/after documentation you can hand to a quality auditor
Spindle & ballscrew replacement
Two of the biggest-ticket items on a machine, and two of the easiest to get wrong. We handle removal, replacement, alignment, break-in and the geometry verification afterward — and we will tell you when a rebuild makes more sense than a new unit.
- Spindle R&R with proper break-in cycle
- Ballscrew replacement with preload set and pitch error re-comp
- Drawbar, clamping force and pull-stud checks
- Post-replacement ballbar and geometry verification
Installation & relocation
Buying used, moving a cell, or consolidating a shop? We run the machine side: pre-move documentation, disconnect, reinstall, level, power and air hookup, commissioning, geometry verification, runoff and operator handoff. You coordinate the riggers, or we can recommend some.
Emergency breakdown response
Down machines jump the queue. Call, describe the alarm and the model, and we will triage on the phone at no charge — sometimes that ends the call. When it doesn't, you get a straight answer on when someone can be there and what it will likely take.
04 — Metrology
Certification, calibration & documented accuracy
If your quality system requires evidence that a machine holds tolerance, a verbal "it looks good" does not survive an audit. We produce real measurement data with a report attached to it.
- Ballbar circularity testing with printed report and interpretation
- Laser positioning accuracy and repeatability data per axis
- Machine geometry and squareness certificates
- Spindle runout, taper condition and drawbar force records
- Renishaw, Blum and Marposs probe and tool-setter calibration
- Baseline documentation on new installs and after crashes
- Annual accuracy verification for ISO 9001 / AS9100 / IATF programs
05 — Lifecycle
Rebuild & retrofit support
A well-built machine with worn ways and a dead control is often worth more rebuilt than replaced — and sometimes it isn't. The evaluation should come from someone with no machine to sell you.
- Condition assessment and rebuild-vs-replace evaluation, in writing
- Way, ballscrew and bearing wear measurement
- Geometry recovery and re-leveling after major work
- Machine-side support around a Fanuc or Siemens control retrofit
- Commissioning, runoff and accuracy verification after a rebuild
- Coordination with scraping, grinding and spindle rebuild specialists
We are honest about scope: full control retrofits and way scraping go to specialists we trust. We handle the diagnosis, the machine-side work, and the accuracy verification that proves the job landed.
06 — Moves
Machine moving, installation & startup
Rigging companies move iron very well. What they do not do is level it, connect it, commission it and prove it still holds tolerance afterward. That is the part we run.
- Pre-move documentation and accuracy baseline
- Disconnect, prep and rigging coordination
- Placement, precision leveling and foundation checks
- Power, air, coolant and chip-handling hookup
- Commissioning, parameter restore and runoff
- Post-move geometry verification with a report
- Operator handoff and basic maintenance training
Buying a used machine?
Have it looked at before the money moves. A pre-purchase inspection — spindle condition, way wear, backlash, alarm history, ballbar — costs a fraction of what a bad buy does, and the report gives you real negotiating leverage.
How a service call actually works
1. Call or form
Machine make, model, control, alarm number and what changed. Photos and a short video of the noise help more than you'd think.
2. Free phone triage
We narrow it down before anyone bills a mile. If your maintenance tech can fix it today, we'll say so.
3. On-site diagnosis
Scheduled time window, arrival call, and a written quote before any major parts get ordered.
4. Repair & report
Fix, verify with real measurement where it applies, and leave a written report of findings and recommendations.
Frequently Asked Questions
Do you charge for phone diagnosis?
No. Describe the machine and the alarm and we will give you our honest read at no charge. Plenty of calls end there, and that is fine — it is how shops decide to call us the next time.
Do you carry parts?
We carry common consumables and wear items, and we source OEM and aftermarket parts as needed. For anything major you get a written quote before it is ordered.
Can you work with our in-house maintenance team?
Regularly. A lot of the best outcomes are a joint effort — your team knows the machine's history, we bring the factory training and the metrology. We are also happy to train your people on what to check first.
Do you do warranty work for OEMs or dealers?
We are independent, so factory warranty work generally runs through the selling dealer. We handle everything outside of that: post-warranty service, second opinions, PM programs and machines whose dealer support has gone quiet.
Machine down? Let's get it cutting again.
Straight answers, honest diagnostics, and a tech who has actually rebuilt the machine you're standing next to.