Teardown and Rebuild Steps

Our repair process for the REXROTH 4WRZ??? begins with teardown and ultrasonic cleaning to assess all components.

About This Unit

At NC Servo Technology, our shop is equipped to service the REXROTH 4WRZ???. We use a consistent process to restore each unit to working condition.

Frequently Asked Questions

Expedited options are available depending on current scheduling. Contact us to discuss your timeline.

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

Turnaround time varies by model and condition. Contact us for a timeline specific to your unit.

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.

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

Experience and Warranty

We’ve built our shop around one thing: industrial repair. With decades of hands-on experience and deep product knowledge, we deliver consistent results.

17,000+ valves in stock including REXROTH 4WRZ??? exchange units

How We Rebuild This Valve

We rebuild every valve from the inside out: cleaning, inspection, parts replacement, reassembly, and bench testing.

  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Final Performance Verification: After reassembly, each valve undergoes bench-testing against published performance specs.
  • Teardown: Every valve is disassembled for internal inspection.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.

Testing and Bench Verification

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 operational testing verifies proper functionality.

Turnaround and Shipping

As a dedicated source for REXROTH 4WRZ??? services, NC Servo Technology targets quick resolution with typical lead times of 1 to 3 weeks. Benefit from our responsive technical support to keep your systems running smoothly.

Maintenance Tips

  • Document all maintenance activities to track performance trends over time.
  • Replace inline filters according to maintenance schedules to maintain proper flow rates.
  • Schedule preventive maintenance intervals based on duty cycle, not just calendar time.

Get an Expert Repair for Your REXROTH 4WRZ???

Request pricing, availability, and turnaround for your REXROTH 4WRZ???. NC Servo Technology provides warrantied repair with a 1-year warranty. Contact us to start your repair.

Request a Quote View All REXROTH Products Shop REXROTH Inventory

NC Servo Technology 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.