What Determines the Operating Cost of EDM and Wire EDM Machines?

Short Answer

EDM and Wire EDM Machines operating cost is not only power or consumables. Calculate cost per good part or productive hour from investment, financing, material, energy, tooling, labor, maintenance, scrap, downtime and support.

Investment and capital

Spread purchase, site work, tooling, software, training and financing over realistic utilization, not theoretical maximum output.

Variable operating cost

Define tolerance, roughness, acceptable passes and thermal-fluid stability. Unneeded precision adds time and cost.

Productivity and utilization

Both require conductive material. Review heat treatment, start holes, workholding, surface condition and electrode manufacture where applicable.

Quality and scrap

If the path is through-cut and wire can pass, wire EDM is a strong candidate. Blind cavities and electrode-transferred shapes usually point to sinker EDM.

Maintenance and downtime

Include wire or electrode, filters, dielectric, power, programming, supervision and maintenance, then compare cost per good part.

Decision equation

Cost per good part equals all relevant period costs divided by accepted parts. Stress-test utilization, exchange rate and downtime.

Frequently Asked Questions

What is the best cost unit?

Good part, good metre or productive hour according to the process.

Is catalogue consumption enough?

No. Use trials, actual readings and an operating range.

How often should cost be updated?

Monthly or after material, currency, utilization or downtime changes materially.

Next Step

Share your part, material, target output and site requirements with SAKKARY MACHINERY for a technical review of EDM and wire EDM machines.