1
Celada France
FR · New
Machine tool distributor established in Metz-Tessy since 1994, specialized notably in wire EDM and sinker EDM machines. Covers several CNC machining segments for precision industries.
CNC machines · new & used
Die-sinking EDM machines: used and new
Die-sinking EDM — also known as ram EDM or sinker EDM — machines complex shapes into hard, electrically conductive materials where cutting tools reach their limits. Purchasing a die-sinking EDM machine is a defining decision for any precision machining or mold-making shop. This guide helps you compare available options, identify the essential criteria, and select the configuration that suits your production requirements.
Ranking updated on July 29, 2026 · per the cnc-machine methodology
5
listed suppliers
0
brands represented
Neuf · Occasion
new & used
Die-sinking EDM machines suppliers
2
Delta Machines
FR · New & used
French company specializing in the sale of machine tools covering turning, milling and EDM, both new and used. Offers service and training support on EDM equipment.
3
FI.HT
FR · New & used
French machine tool distributor offering new and used equipment, including sinker EDM machines from major brands. Positions itself as a machine fleet management partner.
4
LMO France
FR · New
Exclusive distributor in France of Mitsubishi Electric brand die-sinking EDM machines. Offers the full range of CNC die-sinking machines, from quotation to commissioning. Based in Fretin, active since 1981.
5
ONA EDM France
FR · New & used
French representation of the manufacturer ONA Electroerosión, offering new and used sinker EDM machines. The used catalog includes refurbished models available for direct sale.
Buying guide: Die-sinking EDM machines
How does die-sinking EDM work, and who is it for?
Die-sinking EDM uses repeated electrical discharges between an electrode (typically copper or graphite) and the workpiece, both submerged in a dielectric fluid. Because the process generates no mechanical force on the part, it is particularly well suited to hardened steels, exotic alloys, and undercut geometries. It is indispensable in the manufacture of injection molds, stamping dies, and aerospace components with tight tolerances.
New or used: which is the right choice?
A new machine comes with a manufacturer warranty, the latest generator technology, and commissioning support. It is the preferred option when repeatable precision and uptime are critical. A used machine can significantly reduce the initial investment, but the generator condition, table geometry, guide wear, and spare parts availability must all be carefully inspected. Prioritize machines whose control software is still supported by the manufacturer, as a corrective update can quickly add up in cost.
Brands and technical criteria to evaluate
Established manufacturers in this segment include Sodick, Mitsubishi Electric, Charmilles (GF Machining Solutions), ONA, and AgieCharmilles. When comparing machines, examine generator output (peak amperage), X/Y/Z axis travel, table load capacity, achievable surface finish (Ra in µm), and positioning accuracy. An automatic electrode changer is a significant advantage for repeat-production work. Also verify compatibility with your existing CAM system and the ease of programming machining cycles.
Budget and typical use cases
The price of a die-sinking EDM machine varies widely depending on table size, generator sophistication, and automation level. Entry-level models aimed at small shops or training differ substantially — in capability and cost — from automated electrode-changing sinker EDM centers designed for complex mold production. For a general-purpose shop handling small-to-medium mold runs, a 3-axis machine with a modern digital generator is often the most practical balance between performance and operating cost. Factor consumable electrodes, dielectric fluid, and preventive maintenance into your overall budget.
Frequently asked questions
What is the difference between die-sinking EDM and wire EDM?
Die-sinking EDM uses a shaped electrode to erode a 3D cavity into the workpiece, making it ideal for closed cavities and molds. Wire EDM cuts 2D or 2.5D contours using a tensioned wire that travels along a programmed path. The two processes are complementary and are often found side by side in the same shop.
What materials can be machined with a die-sinking EDM machine?
Any electrically conductive material can be machined: hardened steels, stainless steels, titanium, Inconel, tungsten carbide, copper, and copper alloys. Non-conductive materials such as ceramics and plastics are not compatible with the process.
Does a die-sinking EDM machine require a specific electrical installation?
Yes. These machines generally require a three-phase power supply, the rating of which depends on the model. Careful grounding is also necessary to prevent electromagnetic interference, along with a dielectric supply (oil or deionized water) complete with filtration and temperature-regulation systems.
What should I inspect first when buying a used die-sinking EDM machine?
Check the condition of the discharge generator (power and accuracy tests), table geometry (flatness and axis play), the integrity of the dielectric tank seals, spare parts availability, and manufacturer software support. A documented maintenance history is a reliable indicator of how well the machine has been maintained.
Other CNC machine types
Broaden your search to the other listed machine categories.
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