Overview

The REXROTH 4WRTE-42M is one of many models we routinely service. Our process includes disassembly, cleaning, and reassembly using reliable components.

Independent Repair Facility

NC Servo Tech operates independently, so we’re not tied to manufacturer delays or restrictions. That means more flexibility when your system is down.

Specializing in REXROTH 4WRTE-42M servo valve technology for over five decades

Frequently Asked Questions

Yes. We diagnose first, then provide a repair recommendation with our findings. No work begins without your approval.

Photos help us confirm the unit type and speed up intake. You can upload them through our quote request form.

Send it in for evaluation. We’ll inspect it and give you a repair-vs-replace recommendation based on the actual condition of the unit.

Most repairs are completed within 1 to 3 weeks, depending on workload and parts availability.

Expedited options are available depending on current scheduling. Contact us to discuss your timeline.

How We Rebuild This Valve

The repair process for the REXROTH 4WRTE-42M includes disassembly, diagnostic review, and replacement of failed seals, spools, or other elements. Final assembly includes leak and function testing.

  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.
  • Final Performance Verification: After reassembly, each valve undergoes bench-testing against published performance specs.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.

Leak and Performance Testing

NC Servo Tech operates our 13-stand test facility, 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.

Turnaround and Shipping

As a focused repair facility for REXROTH 4WRTE-42M services, NC Servo Tech targets quick resolution with typical lead times of 2 to 3 weeks. Benefit from our direct access to our technicians to keep your systems running smoothly.

Parts and Inventory

With more than 17,000 valve units in inventory, we can often provide faster turnaround by sourcing parts in-house rather than waiting on OEM lead times.

Technical Information

For detailed insights into your REXROTH 4WRTE-42M, we can provide access to service logs and reports. This transparency offers you peace of mind and aids in long-term maintenance planning.

Maintenance Tips

  • Replace inline filters according to maintenance schedules to maintain proper flow rates.
  • Monitor operating temperatures to identify potential issues before failure occurs.
  • Use only manufacturer-recommended hydraulic fluids to protect internal valve surfaces.

Request a Quote for Your REXROTH 4WRTE-42M Maintenance

Request pricing, availability, and turnaround for your REXROTH 4WRTE-42M. NC Servo Tech provides warrantied repair with a 1-year warranty. Contact us to request 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.