Short Answer
Before buying EDM and Wire EDM Machines, fix the application, output, quality, site and cost data; normalize supply scope, trial a real sample, and document acceptance, training and support. A written checklist prevents unequal comparisons.
1. Application and part file
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.
2. Capacity and configuration
Both require conductive material. Review heat treatment, start holes, workholding, surface condition and electrode manufacture where applicable.
3. Operation and auxiliaries
Define tolerance, roughness, acceptable passes and thermal-fluid stability. Unneeded precision adds time and cost.
4. Trial and acceptance
Include wire or electrode, filters, dielectric, power, programming, supervision and maintenance, then compare cost per good part.
5. Supplier and support
Document site, installation, commissioning, training, warranty, spares, ticket channels and escalation responsibilities. Ask for named owners and closure records rather than verbal assurances.
6. Commercial decision
Compare total cost, payment terms, currency and collection risks where relevant, and time to stable production. Record why the option was selected and which assumptions will be measured after startup.
Frequently Asked Questions
Is price comparison enough?
No. Normalize application fit, supply scope, support and total cost.
When should the checklist be issued?
With the RFQ and before final comparison.
Who approves it?
Production, technical, finance, procurement and management according to investment risk.
Next Step
Share your part, material, target output and site requirements with SAKKARY MACHINERY for a technical review of EDM and wire EDM machines
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