CNC Machine Repair Services Spindle, Servo, Drive & Controller Repair

When a CNC machine stops, production stops and downtime becomes expensive.

At Epoch Technical, an ISO 9001:2015 certified company, we specialize in CNC machine diagnostic, repair, and control system restoration. We troubleshoot CNC machines at drive level, controller level, and electronic circuit level not just mechanical adjustments.

Our priority is simple:

Fix the machine, reduce downtime, and avoid unnecessary replacement costs.

Why Choose Epoch Technical

Repairs are completed in-house
Component-level repair (not just board swapping)
Transparent quotation no hidden charges
Support for discontinued CNC controllers and drives

We work on the problem not around it.

What We Repair

CNC Machines We Service

CNC Milling Centers
CNC Lathes / Turning Centers
CNC Routers / Woodworking CNC
CNC Plasma / Laser Cutting Machines
CNC Drilling / Engraving Machines

CNC Modules & Components We Repair

Spindle Drives / Spindle Amplifiers
Servo Drives & Servo Motors
PLC Modules & CNC Controller PCBs
Industrial PC / HMI / Operator Panel
Power Supply / SMPS / I/O Boards

No matter the model or controller age we can repair it.

CNC Control Logic: G-code, M-code, Servo & Drive Communication

CNC machines are controlled by a programmed sequence of machine instructions:

G-code controls axis motion (movement, speed, direction)
M-code controls machine functions (coolant, tool change, spindle on/off)

These programs are written manually or generated using CAD/CAM software.

A CNC machine depends on communication between:

CNC Controller ↔ Servo Drive Motor Encoder
Spindle Drive ↔ PLC ↔ Operator Panel

If communication drops at any point the CNC stops responding.

➡ We repair failures in servo, spindle, PLC, encoder feedback, and control electronics.

Common CNC Problems We Fix

Electrical / Drive / Control Issues

CNC machine not booting
Servo alarm / overcurrent / following error
Axis drift / inaccurate positioning
Encoder feedback loss
Spindle not rotating or unstable RPM
Controller/PLC not communicating with drives
Parameter loss after power shutdown

Technical services performed

Servo tuning & axis calibration
Spindle inverter testing / IGBT repair
Control PCB and communication bus diagnostics
Encoder/resolver feedback testing
Backlash measurement and correction

Our Repair Process

Free Evaluation

Describe the problem or send the unit; we diagnose the issue.

Clear Quotation

We share the fault cause and cost no repair proceeds without your approval.

Component-Level Repair

We repair faulty modules (PCB, power circuits, SMPS, servo amplifier) instead of replacing the entire unit.

Testing & Calibration

We verify spindle speed, servo feedback accuracy, and axis repeatability.

Machine Ready for Production

Reinstalled and tested under real-load conditions.

Brands We Work With

We repair and support CNC systems from:

If the brand isn't listed send the model number.

Brands We Work With

At Epoch Technical, we understand how critical CNC uptime is to your production. We don’t guess we diagnose accurately and repair what’s necessary, so you avoid costly replacements. Our team keeps the process clear, the pricing fair, and the repairs reliable.

If your CNC machine is down or showing alarms, share the issue with us. We’ll handle the diagnosis, repair, and final calibration getting your machine back to work.