How We Repair Your Unit

Our repair process for the REXROTH 4WE6D51/AW110NZ55L begins with teardown and ultrasonic cleaning to assess all components.

Overview

Whether the issue is age, wear, or contamination, the REXROTH 4WE6D51/AW110NZ55L can often be restored. NC Servo Tech applies the same structured approach to every rebuild.

Frequently Asked Questions

We can often prioritize urgent jobs. Note it on your request form and we’ll let you know what’s possible.

Yes. If the unit can’t be repaired, we contact you with options before doing anything further.

Warranty coverage of our standard 1-year parts and labor warranty is included with every repair we complete.

Part of our intake includes troubleshooting to determine the failure point. We report findings before proceeding.

Yes. Send us photos of the unit from multiple angles. Our team has serviced thousands of models and can often ID them visually.

Independent Repair Facility

NC Servo Tech specializes in both valves and electronic controls, which lets us operate without the delays of OEM service centers.

Specializing in REXROTH 4WE6D51/AW110NZ55L servo valve technology for over five decades

Disassembly and Rebuild Procedure

The process begins with disassembly and visual evaluation. We then clean, replace worn pieces, and reassemble the valve to restore its function.

  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.
  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.

Hydraulic Testing Process

NC Servo Tech operates over a dozen dedicated flow test stands, including setups for proportional and servo valves. Every valve goes through performance and leak testing using standard test fluids to match your operational needs. Our pre-shipment testing verifies consistent performance.

Performance Data

Every REXROTH 4WE6D51/AW110NZ55L we service is tested under real-world conditions. Our diagnostics verify performance against published specifications. Performance data and Specification sheets are available for purchase upon request.

Turnaround and Shipping

As a focused repair facility for REXROTH 4WE6D51/AW110NZ55L services, NC Servo Tech targets quick resolution with typical lead times of 1 to 3 weeks. Benefit from our direct access to our technicians to keep your systems running smoothly.

Technical Information

For detailed insights into your REXROTH 4WE6D51/AW110NZ55L, we can provide access to reports and service logs. This transparency offers you record-keeping and aids in long-term maintenance planning.

Maintenance Tips

  • Perform fluid analysis to detect contamination early and prevent system damage.
  • Check system pressure regularly to verify it stays within the REXROTH 4WE6D51/AW110NZ55L rated operating range.
  • Conduct thorough visual inspections for wear or leaks during routine maintenance.

Ready to Restore Your REXROTH 4WE6D51/AW110NZ55L?

Request pricing, availability, and turnaround for your REXROTH 4WE6D51/AW110NZ55L. NC Servo Tech provides warrantied repair with a 1-year warranty. Contact us to schedule your repair.

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NC Servo Tech is an independent third-party repair facility. We are not affiliated with, endorsed by, sponsored by, or authorized by REXROTH or any original equipment manufacturer (OEM), nor do we claim to be a REXROTH service center. All brand names, trademarks, model numbers, and part numbers referenced on this page are the property of their respective owners and are used solely for identification and compatibility purposes.