CEI Servo Valve Repair & Sales | CEI Proportional Valve Repair | NC Servo Technology
Hydraulic Valve Service

CEI Servo Valve Repair & Sales

NC Servo Technology repairs and sells CEI servo valves and proportional valves. With over 19,000 valves in stock and 13 test stands, we deliver faster turnaround than sending units back to the manufacturer.

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Test Stand Verification

CEI Valve Testing on 13 Hydraulic Test Stands

Every CEI servo valve and proportional valve undergoes testing on our hydraulic test stands before shipment. We verify flow rates, pressure response, null settings, and leakage against manufacturer specifications.

  • Flow characterization across full operating range
  • Pressure gain and response time measurement
  • Internal and external leakage verification
  • Null bias adjustment and calibration
  • Hysteresis and linearity testing
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Hydraulic test stand with pressure gauges and control valves for servo valve testing
Repair Services

CEI Proportional Valve Repair & Rebuild Services

Our technicians disassemble, clean, and rebuild CEI valves to manufacturer specifications. We replace worn components, recalibrate electronics, and test each unit before returning it to service.

Disassembly & Inspection

Each CEI valve is disassembled and inspected under magnification. We document wear patterns and identify components requiring replacement.

Cleaning & Decontamination

Ultrasonic cleaning removes contaminants from valve bodies, spools, and internal passages. Mating surfaces are prepared for reassembly.

Component Replacement

Worn seals, O-rings, springs, and feedback devices are replaced with new components that meet or exceed original specifications.

Electronic Calibration

Servo amplifier cards and electronic feedback systems are tested and calibrated. Failed electronics are repaired or replaced as needed.

Reassembly & Adjustment

Valves are reassembled with proper torque sequences and gap settings. Null adjustments and gain settings are configured per manufacturer data.

Final Test & Documentation

Completed repairs undergo full performance testing. Test results are recorded and available upon request for an additional fee.

Why NC Servo

Independent Service for CEI Hydraulic Valves

Warehouse shelves stocked with servo valves and proportional valves

NC Servo Technology has serviced CEI valves and other hydraulic control systems since 1975. As an independent service provider, we offer faster turnaround and competitive pricing compared to sending units back to the manufacturer.

  • Veteran-owned business operating since 1975
  • Over 19,000 servo and proportional valves in stock
  • 13 hydraulic test stands for performance verification
  • Support for discontinued CEI models
  • 1-year warranty on all repairs
  • Rush service available for time-sensitive needs
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Industries Served

CEI Valve Service for Manufacturing & Industrial Applications

CEI servo valves and proportional valves are used across multiple industries for motion control and hydraulic positioning. NC Servo supports maintenance teams in these sectors with repair and replacement services.

Plastics & Injection Molding

CEI valves control injection speed, clamp pressure, and core positioning on molding machines. We keep your production lines running.

Metal Forming & Stamping

Hydraulic presses rely on CEI proportional valves for accurate force control. Our repairs restore manufacturer-level performance.

Machine Tool & CNC

Axis positioning and tool feed systems use CEI servo valves for accurate motion control in machining centers.

Questions

CEI Servo Valve Repair FAQs

What if you dont have my specific CEI valve in stock?

While we maintain an inventory of over 19,000 valves, if we dont have your specific CEI model in stock, we can act as a broker to source the valve you need. Our industry relationships allow us to locate hard-to-find and discontinued CEI valves from suppliers worldwide.

Do you offer exchange programs for CEI valves?

We maintain a large inventory of rebuilt CEI units. After evaluation, if your unit is not economical to repair or if you need faster turnaround, we can discuss purchasing a rebuilt unit from stock. Core credit may be available based on your unit's condition and parts value.

How long does a CEI servo valve repair take?

Turnaround depends on part availability, severity of damage, and whether we have replacement components in stock. Contact us for a timeframe estimate on your specific unit. Rush service is available for time-sensitive situations.

What warranty do you provide on CEI valve repairs?

All CEI valve repairs include a 1-year warranty covering parts and labor. The warranty applies when the valve is operated within manufacturer specifications. Contact us for warranty terms and conditions.

Can you repair discontinued CEI valve models?

Yes. NC Servo maintains parts inventory and technical knowledge for many discontinued CEI valve models that the manufacturer no longer supports. We can often repair or rebuild valves that OEMs consider obsolete.

Do you provide test documentation with repairs?

All valves are tested on our hydraulic test stands before shipment. Standard repairs include confirmation that the valve meets specifications. Test graphs and performance curves are available for purchase upon request.

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Ready for CEI Valve Service?

Contact NC Servo Technology for CEI servo valve repair, proportional valve sales, or exchange options. Our team will respond with pricing and availability.

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