About This Unit

Whether the issue is age, wear, or contamination, the REXROTH 4WSDEM10-40/5B2BT can often be restored. NC Servo applies the same structured approach to every rebuild.

Independent Repair Facility

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

Specializing in REXROTH 4WSDEM10-40/5B2BT servo valve technology for over five decades

Frequently Asked Questions

We recommend sending pictures, especially if the model number is unclear or there is visible damage.

Not required, but removing excess oil or loose debris before packing helps keep things clean in transit.

Inspection and root-cause analysis are part of our standard process. We identify the issue before starting any repair work.

Yes, rush service is available for an additional fee. Let us know your deadline when you submit your request.

Yes. Our repairs include our standard 1-year parts and labor warranty covering parts and labor.

Repair Process

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

  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • 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.

Hydraulic Testing Process

We carry out full diagnostics on every valve, including flow gain, leakage, pressure shift, and frequency testing. Our test facility supports performance logging and report generation. Our pre-shipment testing verifies spec-level operation.

Performance Data

Every REXROTH 4WSDEM10-40/5B2BT we service is tested under real-world conditions. Our diagnostics verify performance against published specifications. Cycle life data and Performance data are available for purchase upon request.

Additional REXROTH 4WSDEM10-40/5B2BT Services

Beyond standard refurbishment, we offer specialized repairs for your REXROTH 4WSDEM10-40/5B2BT unit. Our overhaul process includes seal replacement and reassembly to spec, using only replacement replacement components.

Maintenance Tips

  • Check system pressure regularly to verify it stays within the REXROTH 4WSDEM10-40/5B2BT rated operating range.
  • Use only manufacturer-recommended hydraulic fluids to protect internal valve surfaces.
  • Monitor operating temperatures to identify potential issues before failure occurs.

Need Your REXROTH 4WSDEM10-40/5B2BT Back Online?

Request pricing, availability, and turnaround for your REXROTH 4WSDEM10-40/5B2BT. NC Servo provides experienced repair with a 1-year warranty. Contact us to request your repair.

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NC Servo 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.