Repair Procedure

Each HANNA MF12HNC undergoes reconditioning — disassembly, parts replacement, reassembly, and bench testing before shipment.

About This Unit

We’ve serviced hundreds of HANNA MF12HNC units over the years. Each one goes through the same controlled teardown, parts replacement, and testing process.

Frequently Asked Questions

We give you a straight assessment after inspection. If repair doesn’t make sense, we’ll let you know and discuss alternatives.

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

Helpful but not required. If you can photograph the label, connectors, and overall unit, it gives our team a head start.

Most repairs are completed within 1 to 3 weeks, depending on workload and parts availability.

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

About Our Shop

NC Servo Technology operates independently, so we’re not tied to manufacturer delays or restrictions. That means more flexibility when your system is down.

How We Rebuild This Valve

We rebuild every valve from the inside out: cleaning, inspection, parts replacement, reassembly, and bench 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.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.

Diagnostic Testing

With thirteen in-house 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 functional testing verifies spec-level operation.

Technical Specifications

Every HANNA MF12HNC we service is tested under operating environments. Our diagnostics verify performance against published specifications. Performance data and Specification sheets are available for purchase upon request.

Additional HANNA MF12HNC Services

Beyond standard refurbishment, we offer specialized overhauls for your HANNA MF12HNC unit. Our overhaul process includes pressure testing and leak testing, using only replacement replacement components.

Data Sheets & Reports

For detailed insights into your HANNA MF12HNC, we can provide access to reports and service logs. This transparency offers you peace of mind and aids in long-term maintenance planning.

Maintenance Tips

  • Inspect HANNA MF12HNC seals regularly to prevent leaks and maintain performance.
  • Replace inline filters according to maintenance schedules to maintain proper flow rates.
  • Flush the hydraulic system after any major repair to remove debris before reinstalling the HANNA MF12HNC.

Let Us Repair Your HANNA MF12HNC

Request pricing, availability, and turnaround for your HANNA MF12HNC. NC Servo Technology provides experienced repair with a 1-year warranty. Contact us to request your repair.

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NC Servo Technology is an independent third-party repair facility. We are not affiliated with, endorsed by, sponsored by, or authorized by HANNA or any original equipment manufacturer (OEM), nor do we claim to be a HANNA 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.