Makino EDAF2-FH
Key Specifications
X Travel
Y Travel
Z Travel
Table Size
Weight
Rapid Traverse
Overview
The Makino EDAF2-FH (Fine Hole) is a dual-purpose sinker EDM that combines full sinker burning capability with precision EDM hole drilling on a single platform. The 'FH' designation adds a removable W-axis die guide arm that enables high-precision start holes and cooling holes directly on the sinker EDM, eliminating the need for a separate EDM hole-drilling machine in many shops.
The base platform is identical to the standard EDAF2: 350 x 250 x 250 mm (13.8 x 9.8 x 9.8 in) travel on X/Y/Z, a 500 x 350 mm (19.7 x 13.8 in) worktable rated for 500 kg (1,102 lb), and a three-sided programmable drop tank. The key addition is the W-axis die guide arm, which installs and removes quickly, converting the machine between sinker and drilling modes without removing the workpiece.
In drilling mode, the EDAF2-FH can produce EDM-drilled holes from 0.1 mm (0.004 in) diameter up to approximately 3 mm (0.118 in). Unlike conventional mechanical drilling, EDM hole drilling works in hardened materials regardless of hardness, produces burr-free holes, and can drill at angles that twist drills cannot reach. The die guide arm provides precise electrode guidance for maintaining hole straightness and positional accuracy.
A significant advantage of the FH variant is that it uses the same EDM dielectric oil as the sinker mode, rather than the deionized water used in dedicated hole-drilling machines. Makino states this improves drilling accuracy and edge quality. The Hyper-i control includes dedicated hole-drilling cycles and technology settings alongside the full sinker EDM functionality.
All standard EDAF2 features are retained: SuperSpark IV, ArcFree technology, HyperCut, 16-position ATC, optional C-axis MA head, and the MGH5 power supply (30A peak). The machine operates as a full-capability sinker EDM when the die guide arm is removed. New pricing typically ranges from $130,000 to $185,000, reflecting the additional W-axis hardware and drilling technology.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 350 mm (13.8 in) |
| Y-Axis Travel | 250 mm (9.8 in) |
| Z-Axis Travel | 250 mm (9.8 in) |
| Table Size | 500 x 350 mm (19.7 x 13.8 in) |
| Max Workpiece Weight | 500 kg (1,102 lb) |
| Max Electrode Weight | 50 kg (110 lb) |
| Tank Internal Dimensions | 650 x 500 x 350 mm (25.6 x 19.7 x 13.8 in) |
| Hole Drilling Range | 0.1 - 3.0 mm (0.004 - 0.118 in) |
| Nc Power Supply | MGH5 (30A peak) |
| Rapid Traverse Rate | 5,000 mm/min (197 ipm) |
| Atc Capacity | 16 positions |
| C Axis Speed | 1,000 RPM (MA Head, optional) |
| Machine Weight | ~4,500 kg (9,921 lb) |
| CNC Control | Makino Hyper-i (touchscreen) |
| Additional Axis | W-axis (removable die guide arm) |
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| Metricenglish | X: 350 mm Y: 250 mm Z: 350 mmMaximum Workpiece Weight500 kgTable: 21.7" x 13.8"X: 13.8" Y: 9.8" Z: 13.8"Maximum Workpiece:1,100 lbsMaximum Workpiece Weight:1,100 lbs |
| Metric | English |
| Maximum Workpiece Weight500 Kg | Maximum Workpiece:1,100 lbsMaximum Workpiece Weight:1,100 lbs |
| Maximum Workpiece Weight | 1,100 lbs |
| Maximum Workpiece1100 Lbs | Maximum Workpiece Weight:1,100 lbs |
| Maximum Workpiece | 1,100 lbs |
Specifications sourced from makino.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Dual sinker/drilling capability eliminates the need for a separate EDM hole-drilling machine, saving capital and floor space
- Removable W-axis die guide arm converts between modes quickly without removing the workpiece, maintaining positional accuracy
- Holes drilled in EDM dielectric oil rather than water improve hole edge quality and accuracy over dedicated water-based drill machines
- Full EDAF2 sinker capability retained — ArcFree, SuperSpark IV, HyperCut, 16-tool ATC all function normally
- 0.1 mm minimum hole diameter enables precision start holes for wire EDM and cooling channels in hardened mold inserts
- Single-setup drilling and burning eliminates workpiece repositioning errors between separate machines
Limitations
- 30A peak current limits sinker EDM roughing power compared to the larger EDAF3 with 40A
- FH option adds approximately $30,000-$40,000 to the base EDAF2 price, which may not be justified for shops that rarely need hole drilling
- Maximum 3 mm hole diameter limits drilling capability for larger cooling channel applications
- Switching between sinker and drilling modes, while fast, still requires manual installation/removal of the die guide arm
- Hole drilling speed is slower than dedicated high-speed EDM hole poppers for production drilling volumes
Best For
Frequently Asked Questions
01
New EDAF2-FH machines typically price between $130,000 and $185,000. The FH option adds approximately $30,000-$40,000 over the base EDAF2 price for the W-axis die guide arm and drilling technology package. Used EDAF2-FH machines from 2014-2020 trade between $50,000 and $90,000 when available.
02
The W-axis die guide arm installs and removes in approximately 5-10 minutes. The arm locates on precision reference surfaces that maintain positional accuracy between installations. The Hyper-i control automatically switches between sinker and drilling technology settings based on the operating mode selected.
03
Dedicated EDM hole-drilling machines typically use deionized water as the dielectric. The EDAF2-FH drills in EDM dielectric oil, which Makino says provides better hole edge quality, less recast layer formation, and improved accuracy. Oil-based drilling also avoids the corrosion risk that water-based drilling presents on some workpiece materials.
04
The FH option is typically factory-installed, as it requires specific mounting provisions and control software. Retrofitting a standard EDAF2 with the FH package after delivery may be possible through Makino but is more expensive than ordering it configured from the factory. Check with your Makino dealer for retrofit availability and pricing.
05
The EDAF3-FH offers all the same drilling capability but on the larger EDAF3 platform with 450 x 350 x 350 mm travel, a larger table (700 x 500 mm), higher workpiece capacity (800 kg), and a more powerful 40A MGH6 power supply. Choose the EDAF2-FH for smaller work where its travel is sufficient; choose the EDAF3-FH when you need the additional stroke and power for larger mold inserts.
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