CNC Maintenance and Repair

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CNC Maintenance & Repair Services

Protect Uptime. Preserve Accuracy. Control Your Costs.

At Precision Service Machine Tool Rebuilders, we’ve been keeping CNC equipment productive since 1983. From our facility in Addison, Illinois—and through on-site service—we help manufacturers get more life, accuracy, and reliability from the CNC machines they already own through professional CNC machine maintenance.

When a CNC starts throwing alarms, drifting out of tolerance, or producing poor finishes, you need more than a reset. You need a service partner who understands the whole system—mechanical, electrical, hydraulic, and CNC control—and can get it running right again. Our experienced technicians provide dependable CNC equipment repair to restore performance and reduce unplanned downtime.

As part of the industrial machines we service, we support a wide variety of CNC machining centers, turning centers, and specialty equipment used in precision manufacturing.

Our CNC Maintenance & Repair Capabilities

Our goal is simple: reduce downtime, restore performance, and prevent repeat failures. Typical scope includes:

Preventative maintenance programs

Custom PM schedules for your machines, hours, and environment.

On-Site Troubleshooting

Diagnosis of alarms, axis issues, control faults, and part-quality problems.

Mechanical repairs

Ballscrews, spindles, bearings, couplings, gearboxes, way covers, and more.

Servos, drives & motors

Repair or replacement of servos, drives, encoders, feedback devices, and spindle motors.

CNC control & electrical

I/O faults, cabling, boards, power supplies, switches, relays, and wiring.

Hydraulic, pneumatic & lubrication systems

Pumps, valves, cylinders, actuators, lube systems, and filtration.

Alignment & accuracy

Leveling, squareness, backlash correction, pitch compensation, and test cuts.

Cleaning & system recovery

Coolant tank and line cleaning, chip removal, and contamination control.

Service documentation

Findings, completed work, and recommendations for future maintenance.

The result: CNC machines that hold tolerance, produce good finishes, and stay in production.

Common Machines We Service

We offer CNC machine maintenance and repair for a broad range of CNC and manual machine tools from leading OEM manufacturers.

CNC vertical machining centers (3-, 4-, and 5-axis)

CNC horizontal machining centers, including palletized systems

Horizontal and vertical boring mills (table-, floor-, and planer-type)

Bridge and gantry mills for large-part and mold work

Manual knee and turret mills (Bridgeport-style and toolroom)

CNC lathes and turning centers (2-axis and multi-axis, with or without live tooling)

Slant-bed and flat-bed CNC lathes

Manual engine and toolroom lathes

Vertical turret lathes (VTLs)

Specialty and multi-spindle lathes

Surface grinders (reciprocating and rotary table)

Cylindrical and centerless grinders

Jig, tool, and cutter grinders

Roll and specialty grinding machines

Drill presses and radial drills

Production drill/tap centers

Line boring machines

Horizontal and vertical honing machines

Rotary tables and indexers

Tool changers, carousels, and magazines

Pallet changers, shuttle systems, and tombstones

Chip conveyors, coolant systems, and filtration

Way covers, guarding, and enclosures

When CNC Maintenance & Repair Makes Sense

Customers come to us when they want to:

Cut unplanned downtime and emergency service calls

Restore accuracy, finish, and repeatability without buying new

Extend the life of sound machines showing mechanical or electrical wear

Solve recurring alarms and axis faults that others haven’t fully fixed

Support high-utilization, critical-path CNC equipment

Move from reactive “fix-it-when-it-breaks” to planned maintenance

If these challenges sound familiar, investing in CNC machine maintenance and repair may be the fastest, most cost-effective path forward.

Industries We Support

We provide CNC maintenance and repair for:

Automotive and Heavy Truck

General Machining and Job Shops

Aerospace and Defense

Tool & Die and Mold Making

Heavy Equipment & Construction

Energy and Power Generation

Industrial Component and OEM Manufacturers

If your business depends on CNC machine tools, our CNC equipment repair services can help keep them running safely, accurately, and profitably.

How Our CNC Service Works

We use a straightforward process for CNC equipment repair so you know what’s happening at every step:

Consultation & Triage

Review symptoms, alarms, part issues, and production needs. Identifying the early signs of machine tool failure at this stage often helps prevent more extensive repairs and unexpected production interruptions.

On-Site Evaluation

Inspect mechanical, electrical, and CNC control systems.

Service Plan & Authorization

Define recommended work, parts, and timing.

Repair & Maintenance

Perform approved mechanical, electrical, hydraulic, and control work as part of our comprehensive machine tool repair and rebuild services.

Testing & Verification

Run checks, test cuts, and functional tests to confirm performance.

Follow-Up Planning

Provide documentation and suggestions for ongoing maintenance or future upgrades.

Case Studies

VTL RAM Flatness Check Reveals Hidden Damage

Slide Repair by Precision Service Machine Tool Rebuilders

Why Older Machines Still Deserve a Serious Service Strategy

How Machine Condition Affects Operator Confidence

Talk to Us About CNC Maintenance & Repair

If you’re dealing with recurring alarms, chronic breakdowns, lost accuracy, or a CNC that just isn’t performing like it used to, we’re ready to help.

Contact Precision Service Machine Tool Rebuilders at 1-800-4-REBUILD or reach out through our online form to request CNC maintenance or repair service. We’ll help you stabilize your equipment, protect your schedule, and get more life from the machines you already own.