Makino EDNC-15
Key Specifications
X Travel
Y Travel
Z Travel
Tool Capacity
Table Size
Weight
Overview
The Makino EDNC-15 is a large-capacity sinker EDM designed for shops burning oversized mold cavities, large forging dies, and heavy die-cast tooling. It sits in the upper tier of Makino's EDNC lineup, delivering the travel, generator power, and workpiece capacity needed for work that exceeds the EDNC-10's envelope.
Axis travel measures 750 x 550 x 500 mm (29.5 x 21.7 x 19.7 in) on X/Y/Z — a substantial work envelope that handles large automotive body molds, heavy truck bumper molds, and industrial die applications. The worktable accommodates workpieces up to 3,000 kg (6,614 lb), handling the massive mold plates and die blocks that define large-format mold and die work.
The EDNC-15 runs Makino's HS-Rib power supply with up to 100A peak current, providing aggressive roughing capability for fast stock removal on large, deep cavities. Even with that power, the HS-Rib generator's high-speed switching technology maintains finishing quality down to VDI 10 (Ra 0.3 µm). Electrode wear rates remain competitive thanks to optimized spark energy distribution.
ArcFree technology provides continuous gap monitoring and DC arc prevention across the larger work envelope. SGF flushing is critical at this machine size — deep cavities with large cross-sections demand sophisticated flushing strategies, and the SGF system automatically adjusts based on real-time cavity conditions. The drop tank holds approximately 1,200 liters of dielectric.
A 24-position ATC handles electrode changes for automated production. The Hyper-i control manages all aspects of the burn cycle. Machine weight is approximately 15,000 kg (33,069 lb). New EDNC-15 machines price between $450,000 and $600,000, reflecting their heavy industrial capability. Used units from 2008-2018 sell between $180,000 and $350,000.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 750 mm (29.5 in) |
| Y-Axis Travel | 550 mm (21.7 in) |
| Z-Axis Travel | 500 mm (19.7 in) |
| Table Size | 1,050 x 750 mm (41.3 x 29.5 in) |
| Max Workpiece Weight | 3,000 kg (6,614 lb) |
| Max Electrode Weight | 220 lbs |
| Tank Internal Dimensions | 1,300 x 950 x 550 mm (51.2 x 37.4 x 21.7 in) |
| Dielectric Fluid Volume | 1,200 liters (317 gal) |
| Generator Current | 100A peak (HS-Rib) |
| Rapid Traverse Rate | 197 ipm |
| Atc Capacity | 24 positions |
| Best Surface Finish | VDI 10 (Ra 0.3 µm) |
| Positioning Accuracy | ±0.002 mm (±0.00008 in) |
| Machine Dimensions | 2,700 x 3,800 x 3,200 mm (106.3 x 149.6 x 126.0 in) |
| Machine Weight | ~15,000 kg (33,069 lb) |
| CNC Control | Makino Hyper-i (touchscreen) |
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| Metric | English |
| Maximum Workpiece Weight | 22,046 lbs |
| Tool Capacity | 8, 16, 32 |
| Tank Size | 98.4" x 55.1" x 31.5" |
| Max Available Amperage | 60A ~ 240A |
Specifications sourced from makino.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 750 x 550 mm X/Y travel handles large mold cavities and die blocks that exceed the capability of most sinker EDMs on the market
- 100A HS-Rib generator provides exceptional roughing power for fast stock removal on large, deep cavities
- 3,000 kg workpiece capacity accommodates the heavy mold plates and die blocks common in automotive and industrial tooling
- 1,200 liters of dielectric provides the thermal mass needed for stable multi-hour burns on large workpieces
- SGF flushing technology is especially valuable at this size class where manual flushing strategies become impractical for deep cavities
- 200 kg electrode weight capacity supports the large graphite and copper electrodes used on big cavity work
Limitations
- 15,000 kg machine weight requires reinforced foundation and professional rigging for installation
- Price of $450K-$600K limits the EDNC-15 to high-value shops with large-format work to justify the investment
- 2,500 mm/min rapid traverse is slow compared to smaller machines, adding time to positioning and electrode changes
- 1,200 liters of dielectric represents significant ongoing fluid and disposal costs
- Large footprint of approximately 2,700 x 3,800 mm demands dedicated floor space with service access clearance
Best For
Frequently Asked Questions
01
New Makino EDNC-15 machines typically price between $450,000 and $600,000. Base machines start around $450,000, while full production configurations with C-axis head, enhanced thermal management, fire suppression, and automation integration approach $550,000-$600,000. Used EDNC-15 machines from 2008-2018 sell between $180,000 and $350,000 depending on vintage, generator condition, and hours.
02
The EDNC-15 offers significantly more capability: larger travel (750/550/500 mm vs 600/450/400 mm), double the workpiece capacity (3,000 kg vs 1,500 kg), a more powerful 100A generator vs 80A, and a larger tank (1,200L vs 800L). The EDNC-15 targets large-format work that exceeds the EDNC-10's envelope. If your cavities fit within the EDNC-10's travel, it's the more economical and faster-traversing choice.
03
The EDNC-15 weighs 15,000 kg and requires a reinforced concrete foundation. A minimum 300 mm (12 in) reinforced concrete slab is typically specified. An isolated foundation pad is recommended to prevent vibration transmission to and from adjacent machines. Consult Makino's installation team early in the planning process — foundation preparation can take weeks.
04
Yes, the EDNC-15's large table (1,050 x 750 mm) and 750 x 550 mm travel allow multiple smaller cavities to be burned in a single setup with electrode indexing. The 24-position ATC manages electrode changes for multi-cavity work. This capability is valuable for burning matching cavity sets or multiple inserts fixtured on a common sub-plate.
05
The EDNC-15 uses hydrocarbon-based dielectric oil, which is standard for sinker EDM. Makino specifies low-viscosity mineral oil with a flash point above 100°C. The 1,200-liter tank requires approximately 1,400 liters total including the filtration system volume. Dielectric replacement is recommended every 12-18 months depending on usage, making fluid cost a meaningful operating expense.
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