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Reconditioning Process

The "McWilliams" name has been synonymous with Electrical Discharge Machinery since 1969 and is dedicated 100% to the EDM industry. With over 200 years combined in EDM experience, we offer the highest quality reconditioned EDM equipment throughout North America. McWilliams not only offers you the most professionally reconditioned EDMs in the market, but also has the ability to support all Sodick and Japax electrical discharge machines sold. Please contact us so we may assist you in finding the best machine for your EDM needs.

McWilliams Sales & Service invites you to view our reconditioning process of Sodick and Japax EDMs. Our procedures allow us to offer the best reconditioned EDMs in North America. All of these machines undergo the following six-step process.

Please watch one of our online slideshows detailing the process. You may click on any of the links below:

Slideshow - Japax LDMS Reconditioning Process - Low Bandwidth
Slideshow - Japax LDMS Reconditioning Process - High Bandwidth

Slideshow - Sodick A320D Reconditioning Process - Low Bandwidth
Slideshow - Sodick A320D Reconditioning Process - High Bandwidth

Initial Evaluation

Before we purchase most previously owned machines, one of our trained technicians thoroughly inspects the machine tool, control, power supply, filtration system and chilling unit. Upon completing this inspection, we can determine if the machine meets our purchasing requirements. After approval from our Service Manager, our technician prepares the machine to be shipped to one of our facilities for reconditioning. Disassembly - After the machine arrives at our facility, it is placed under power to check for any damage during transit. Then the machine tool, worktable area, upper and lower head assemblies, control, dielectric tank and chiller are disassembled for cleaning.

Disassembly

After the machine arrives at our facility, it is placed under power to check for any damage during transit. Then the machine tool, worktable area, upper and lower head assemblies, control, dielectric tank and chiller are disassembled for cleaning.

Cleaning

During this step, our technicians thoroughly clean every component of the Machine. Most worktables are removed, sandblasted, ground, painted and re-qualified. On submersible models, the tank assembly is stripped, repainted and all seals are replaced. The Dielectric Tank compartments are acid washed to remove hard sediments and pump seals are replaced when necessary. All components in the Control and Chiller are cleaned free of dirt and grime and any filter materials are replaced. Exterior painted surfaces of all components will be repainted when needed.

Testing of Components

After the components are cleaned, our technicians thoroughly test each part. If any component is found defective or operating below recommended manufacturer specifications, our technicians will replace them.

Reassembly

Each machine is reassembled to manufacturer specifications and equipped with new consumable items. These include such items as guides, energizing pins, tension rollers, filters and resin.

Performance Tests

In this final step, our technicians place the machine under power and prepare it to pass the following test:

Backlash Test
Accuracy Test Cut
Taper Test Cut
Endurance Cut
Metal Removal Rates Test Cut or "Speed Cut"

Our goal is to provide our customers with the highest quality reconditioned EDM. Under no circumstances will a machine leave one of our facilities unless it meets or exceeds manufacturer's specifications, but also the strict standards that McWilliams Sales & Service requires.

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