Repair Procedure

Each REXROTH 4WS2EM10-30/20B2ET315Z8D/M undergoes reconditioning — disassembly, parts replacement, reassembly, and bench testing before shipment.

Key Details

We’ve serviced hundreds of REXROTH 4WS2EM10-30/20B2ET315Z8D/M units over the years. Each one goes through the same controlled teardown, parts replacement, and testing process.

Frequently Asked Questions

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

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

Yes. If the unit can’t be repaired, we contact you with options before doing anything further.

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

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.

Why Repair With NC Servo

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

50+ years of expertise in REXROTH 4WS2EM10-30/20B2ET315Z8D/M Valve Repair

Disassembly and Rebuild Procedure

Once a valve arrives, we tear it down fully, examine key surfaces, and replace worn or damaged parts using components we stock in-house, cutting out OEM lead times.

  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • Teardown: Every valve is disassembled for internal inspection.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.

Testing and Bench Verification

Each REXROTH 4WS2EM10-30/20B2ET315Z8D/M is tested on a dedicated flow bench before it ships. We check pressure, flow, leakage, and response characteristics against published specifications. Our functional testing verifies consistent performance.

REXROTH 4WS2EM10-30/20B2ET315Z8D/M Specifications

Every REXROTH 4WS2EM10-30/20B2ET315Z8D/M we service is tested under real-world conditions. Our diagnostics verify performance against published specifications. Specification sheets and Technical diagrams are available for purchase upon request.

Turnaround and Shipping

As a dedicated source for REXROTH 4WS2EM10-30/20B2ET315Z8D/M services, NC Servo Tech targets quick resolution with typical lead times of 1 to 2 weeks. Benefit from our direct access to our technicians to keep your systems running smoothly.

Parts and Inventory

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

Maintenance Tips

  • Schedule preventive maintenance intervals based on duty cycle, not just calendar time.
  • Keep hydraulic fluid clean and at proper levels for consistent valve operation.
  • Document all maintenance activities to track performance trends over time.

Let Us Repair Your REXROTH 4WS2EM10-30/20B2ET315Z8D/M

Request pricing, availability, and turnaround for your REXROTH 4WS2EM10-30/20B2ET315Z8D/M. NC Servo Tech provides experienced 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.