About This Unit

At NC Servo, our shop is equipped to service the REXROTH 4WEG20/ANDL/5AS252. We use a consistent process to restore each unit to working condition.

Experience and Warranty

As a specialized repair facility, we have dedicated test equipment that general-purpose shops don’t. That means your REXROTH 4WEG20/ANDL/5AS252 gets serviced by people who work on these units regularly.

One-year warranty on all REXROTH 4WEG20/ANDL/5AS252 valve repairs

Frequently Asked Questions

It depends on the unit and scope of work. We provide an estimated timeline after initial evaluation.

Yes, a 12-month warranty on parts and labor is standard on all repairs. Details are provided with your service report.

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

You can send it as-is. We handle all cleaning and preparation as part of our standard process.

Yes. Every unit goes through diagnostic testing and we provide an assessment before moving forward.

Repair Process

Every REXROTH 4WEG20/ANDL/5AS252 gets a controlled teardown on our bench. We document condition, replace what’s needed, and reassemble to proper operating condition.

  • 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

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 pre-shipment testing verifies proper functionality.

Where the REXROTH 4WEG20/ANDL/5AS252 Is Used

Our reliable repair services for the REXROTH 4WEG20/ANDL/5AS252 are trusted across various sectors including Plastics & Injection Molding, Aerospace, and Industrial Machinery. We understand the unique demands of valves in these environments.

Repair, Rebuild and Exchange Options

Beyond standard sales, we offer specialized reconditioning for your REXROTH 4WEG20/ANDL/5AS252 unit. Our teardown process includes flow verification and mineral bath cleaning, using only replacement 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

  • Keep hydraulic fluid clean and at proper levels for consistent valve operation.
  • Conduct thorough visual inspections for wear or leaks during routine maintenance.
  • Check valve alignment carefully to prevent undue stress on internal components.

Need Your REXROTH 4WEG20/ANDL/5AS252 Back Online?

Request pricing, availability, and turnaround for your REXROTH 4WEG20/ANDL/5AS252. NC Servo provides experienced 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.