Makino EDNC-17
Key Specifications
X Travel
Y Travel
Z Travel
Tool Capacity
Table Size
Weight
Overview
The Makino EDNC-17 is a heavy-duty sinker EDM that targets the upper end of large-format cavity burning. Built for shops working on oversized automotive molds, large forging dies, and heavy industrial tooling, the EDNC-17 delivers the work envelope, generator power, and tonnage capacity that define serious production die sinking.
Axis travel measures 900 x 650 x 500 mm (35.4 x 25.6 x 19.7 in) on X/Y/Z, providing an expansive work envelope for the largest mold cavities and die impressions. The worktable accommodates workpieces up to 4,000 kg (8,818 lb), handling even the heaviest mold plates encountered in large automotive and industrial mold making.
The EDNC-17 runs Makino's HS-Rib power supply with up to 120A peak current — delivering the aggressive roughing power needed to efficiently remove stock from large, deep cavities that would take days on smaller machines. Despite this raw power, the HS-Rib generator still achieves finishing quality down to VDI 12 (Ra 0.4 µm), which is adequate for most large-cavity applications where final surface texture comes from post-EDM polishing.
The drop tank holds approximately 1,600 liters of dielectric, providing exceptional thermal stability for extended burns. SGF flushing technology automatically manages dielectric flow in complex cavity geometries where manual flushing becomes nearly impossible. ArcFree technology monitors the gap continuously across the large work zone.
A 24-position ATC handles electrode management. The Hyper-i control provides consistent operation across Makino's lineup. Rapid traverse is 2,000 mm/min (79 ipm). Machine weight is approximately 20,000 kg (44,092 lb). New EDNC-17 machines price between $550,000 and $750,000, reflecting their industrial-scale capability. Used units from 2005-2018 sell between $200,000 and $400,000.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 900 mm (35.4 in) |
| Y-Axis Travel | 650 mm (25.6 in) |
| Z-Axis Travel | 500 mm (19.7 in) |
| Table Size | 1,250 x 900 mm (49.2 x 35.4 in) |
| Max Workpiece Weight | 4,000 kg (8,818 lb) |
| Max Electrode Weight | 220 lbs |
| Tank Internal Dimensions | 1,550 x 1,100 x 600 mm (61.0 x 43.3 x 23.6 in) |
| Dielectric Fluid Volume | 1,600 liters (423 gal) |
| Generator Current | 120A peak (HS-Rib) |
| Rapid Traverse Rate | 197 ipm |
| Atc Capacity | 24 positions |
| Best Surface Finish | VDI 12 (Ra 0.4 µm) |
| Positioning Accuracy | ±0.003 mm (±0.00012 in) |
| Machine Dimensions | 3,100 x 4,200 x 3,500 mm (122.0 x 165.4 x 137.8 in) |
| Machine Weight | ~20,000 kg (44,092 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 63.0” x 31.5” |
| Max Available Amperage | 60A ~ 240A |
Specifications sourced from makino.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 900 x 650 mm X/Y travel covers the largest mold cavities and die impressions in automotive and industrial tooling
- 120A HS-Rib generator delivers massive roughing power that dramatically reduces cycle times on large cavity work
- 4,000 kg workpiece capacity handles the heaviest die blocks and mold plates without special fixturing
- 1,600 liters of dielectric provides outstanding thermal stability for multi-day burn cycles
- 300 kg electrode capacity supports the oversized electrodes required for large-area cavity burning
- SGF flushing becomes essential at this scale — automatic optimization of dielectric flow in deep, complex cavities
Limitations
- 20,000 kg machine weight demands a reinforced, isolated foundation and specialized rigging equipment
- Price of $550K-$750K limits the market to shops with consistent large-format work to justify the investment
- 2,000 mm/min rapid traverse is notably slow, adding significant time to electrode changes and positioning
- 1,600 liters of dielectric represents major ongoing fluid and disposal costs
- Large footprint requires dedicated floor space — plan for approximately 5,000 x 6,500 mm with service clearance
Best For
Frequently Asked Questions
01
New Makino EDNC-17 machines typically price between $550,000 and $750,000. Base machines start around $550,000. Full configurations with C-axis head, enhanced thermal management, overhead crane integration, fire suppression, and automation interfaces approach $700,000-$750,000. Used EDNC-17 machines from 2005-2018 sell between $200,000 and $400,000.
02
The EDNC-17 offers larger travel (900/650/500 mm vs 750/550/500 mm), more workpiece capacity (4,000 kg vs 3,000 kg), a more powerful 120A generator vs 100A, and a larger tank (1,600L vs 1,200L). The EDNC-17 weighs 5,000 kg more and requires significantly more floor space. Choose the EDNC-15 if your work fits within its travel — it offers faster traverse and lower operating costs.
03
The EDNC-17 is found primarily in automotive OEM and Tier 1 mold shops, large forging die manufacturers, die casting tooling shops, and heavy industrial tooling operations. Any application requiring sinker EDM on cavities larger than 750 x 550 mm or workpieces heavier than 3,000 kg puts you in EDNC-17 territory. The machine is also used by specialty tooling shops serving aerospace and defense applications.
04
Yes. At 20,000 kg, the EDNC-17 requires a reinforced, isolated concrete foundation. Makino typically specifies a minimum 400 mm (16 in) reinforced concrete pad with isolation from surrounding floor slabs to prevent vibration transmission. An overhead crane rated for the heaviest expected workpieces plus electrode assembly weight is also recommended for workpiece loading.
05
Burn times vary enormously based on cavity volume, depth, and required surface finish. A large automotive body panel mold cavity might require 40-80 hours of total burning time across roughing and finishing electrodes. Deep forging die cavities can run 20-60 hours. The 120A generator's roughing speed is a significant advantage — the same cavity might take 50-100% longer on a machine with a 60-80A generator.
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