Repair Procedure

We specialize in the overhaul of your REXROTH ZDR6-DP0-45/40YMW80, including the replacement of all necessary seals and worn components.

Why Repair With NC Servo

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

Frequently Asked Questions

Yes, our standard 1-year parts and labor warranty is standard on all repairs. Details are provided with your service report.

If a unit is beyond repair, we explain why and can discuss replacement or exchange options.

Yes. Photos of the nameplate and overall unit let us begin identification before it arrives, which speeds up the process.

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

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.

How We Rebuild This Valve

The repair process for the REXROTH ZDR6-DP0-45/40YMW80 includes disassembly, diagnostic review, and replacement of failed seals, spools, or other elements. Final assembly includes leak and function testing.

  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.

Testing and Bench Verification

With our 13-stand test facility 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 pre-shipment testing verifies proper functionality.

Performance Data

Every REXROTH ZDR6-DP0-45/40YMW80 we service is tested under operating environments. Our diagnostics verify performance against published specifications. Technical diagrams and Specification sheets are available for purchase upon request.

Repair, Rebuild and Exchange Options

Beyond standard maintenance, we offer specialized reconditioning for your REXROTH ZDR6-DP0-45/40YMW80 unit. Our teardown process includes spool evaluation and leak testing, using only new replacement components.

Parts and Inventory

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

  • Flush the hydraulic system after any major repair to remove debris before reinstalling the REXROTH ZDR6-DP0-45/40YMW80.
  • Use only manufacturer-recommended hydraulic fluids to protect internal valve surfaces.
  • Monitor operating temperatures to identify potential issues before failure occurs.

Get an Expert Repair for Your REXROTH ZDR6-DP0-45/40YMW80

Request pricing, availability, and turnaround for your REXROTH ZDR6-DP0-45/40YMW80. NC Servo provides hands-on repair with a 1-year warranty. Contact us to start 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.