CNC & Industrial Circuit Board Repair
CNC machines are high-value production assets. When a control board or spindle drive fails, the cost of downtime can run into lakhs per day. We repair CNC controllers, spindle amplifiers, power supply units and axis drive boards at the component level — restoring your machine to production without the cost and lead time of OEM replacement boards.
What We Repair
CNC Controllers
- ▶CNC main CPU boards and processor modules
- ▶Axis control cards and servo amplifiers
- ▶Spindle drive boards and amplifiers
- ▶I/O boards and interface modules
- ▶Operator panel and MDI keyboards
- ▶Memory and parameter backup modules
Industrial Circuit Boards
- ▶Custom OEM machine control boards
- ▶Relay logic and timer boards
- ▶Analog and digital signal processing boards
- ▶Thyristor firing boards
- ▶Motor protection and monitoring boards
CNC Peripherals
- ▶CNC display units and CRT-to-LCD conversions
- ▶Handwheel and MPG encoders
- ▶Tool changer control boards
- ▶Coolant and lubrication controllers
Common Symptoms
Brands We Service
Our Repair Process
Fault Code Analysis
We start with the alarm history and fault codes to narrow the failure to a specific board or module.
Board-Level Diagnosis
The suspect board is tested on the bench — power rails, clock signals, communication buses, and individual ICs are verified.
Component Replacement
Failed ICs, capacitors, IGBTs, and connectors are replaced with genuine or industrial-grade equivalents.
Functional Test
Repaired board is tested under simulated CNC operating conditions before return.
Warranty Return
Up to 6 months warranty with written test report and fault documentation.
Need CNC Repair?
Send photos and model number for a free quote within 24-48 hours.
Frequently Asked Questions
Can you repair obsolete CNC boards that Fanuc no longer supports?+
Yes — we frequently repair discontinued Fanuc 0i, 16i, 18i, and 21i series boards that are no longer available from Fanuc.
Do you convert CRT displays to LCD?+
Yes — we offer CRT-to-LCD conversion kits and installation for popular CNC models.
How long does CNC board repair take?+
Typically 5–10 working days depending on complexity and parts availability. Urgent jobs can be prioritized.