Valve Overview

We’ve serviced hundreds of REXROTH 0811-404-163 units over the years. Each one goes through the same controlled teardown, parts replacement, and testing process.

How We Repair Your Unit

Each REXROTH 0811-404-163 undergoes reconditioning — disassembly, parts replacement, reassembly, and bench testing before shipment.

Frequently Asked Questions

If the main housing or board is intact, repair is usually the better option. We can restore most units to working condition with tested parts.

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

Standard turnaround is 1-3 weeks. Rush options are available for time-sensitive situations.

Yes. Our technicians can often identify units based on photos, dimensions, or manufacturer markings. Send a photo before shipping to speed up intake.

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

Independent Repair Facility

We stock common wear parts in-house, so most rebuilds don’t require outside sourcing. Less waiting, faster turnaround.

50+ years of expertise in REXROTH 0811-404-163 Valve Repair

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.
  • Final Performance Verification: After reassembly, each valve is bench-tested against published performance specifications.
  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.

Leak and Performance Testing

With over a dozen dedicated flow test stands and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and more. Performance reports and graphs are available for purchase on request. Our performance testing verifies spec-level operation.

Additional REXROTH 0811-404-163 Services

Beyond standard refurbishment, we offer specialized repairs for your REXROTH 0811-404-163 unit. Our overhaul process includes bench testing and mineral bath cleaning, using only replacement replacement components.

Turnaround and Shipping

As a focused repair facility for REXROTH 0811-404-163 services, NC Servo Tech targets quick resolution with typical lead times of 1 to 3 weeks. Benefit from our dedicated support team to keep your systems running smoothly.

Stock Availability

With an extensive stock of 17,000+ valves, we can often provide faster turnaround by sourcing parts in-house rather than waiting on OEM lead times.

Maintenance Tips

  • Perform fluid analysis to detect contamination early and prevent system damage.
  • Use only manufacturer-recommended hydraulic fluids to protect internal valve surfaces.
  • Check system pressure regularly to verify it stays within the REXROTH 0811-404-163 rated operating range.

Get a Free Evaluation for Your REXROTH 0811-404-163

Request pricing, availability, and turnaround for your REXROTH 0811-404-163. NC Servo Tech provides warrantied repair with a 1-year warranty. Contact us to set up 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.