Teardown and Rebuild Steps

Our repair process for the REXROTH 4WSE2EE10-45/20B9ET70Z9EM begins with teardown and mineral bath and ultrasonic cleaning to assess all components.

Independent Repair Facility

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

One-year warranty on all REXROTH 4WSE2EE10-45/20B9ET70Z9EM valve repairs

Frequently Asked Questions

Yes. We diagnose first, then provide a repair recommendation with our findings. No work begins without your approval.

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

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

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.

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

Rebuild Steps

Our team disassembles each valve to assess internal wear. After ultrasonic cleaning, we install replacements and reassemble and verify operation.

  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • Final Performance Verification: After reassembly, each valve undergoes bench-testing against published performance specs.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.

Leak and Performance Testing

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.

Repair, Rebuild and Exchange Options

Beyond standard sales, we offer specialized overhauls for your REXROTH 4WSE2EE10-45/20B9ET70Z9EM unit. Our disassembly process includes seal replacement and reassembly to spec, using only new replacement components.

Turnaround and Shipping

As a specialist for REXROTH 4WSE2EE10-45/20B9ET70Z9EM services, NC Servo Tech targets quick resolution with typical lead times of 1 to 2 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

  • Conduct thorough visual inspections for wear or leaks during routine maintenance.
  • Perform fluid analysis to detect contamination early and prevent system damage.
  • Monitor operating temperatures to identify potential issues before failure occurs.

Get an Expert Repair for Your REXROTH 4WSE2EE10-45/20B9ET70Z9EM

Request pricing, availability, and turnaround for your REXROTH 4WSE2EE10-45/20B9ET70Z9EM. NC Servo Tech provides independent repair with a 1-year warranty. Contact us to request your repair.

Request a Quote View All REXROTH Products Shop REXROTH Inventory

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.