Makino U6 H.E.A.T.
Key Specifications
X Travel
Y Travel
Z Travel
Table Size
u axis
v axis
Overview
The Makino U6 H.E.A.T. is a large-platform wire EDM built for shops that need speed, accuracy, and finish quality in a single package. H.E.A.T. stands for High Energy Applied Technology, and the name isn't just marketing — this machine backs it up with hardware upgrades that make a real difference in poor-flush conditions and thick-part cutting.
Axis travel measures 650 x 450 x 420 mm (25.6 x 17.7 x 16.5 in) on X/Y/Z, with U and V axes each providing +/-75 mm (+/-3 in) of independent wire offset for taper cutting up to 15 degrees. The 4-sided hardened stainless steel worktable spans 910 x 710 mm (35.8 x 28 in) and holds workpieces up to 1,000 x 800 x 400 mm (39.4 x 31.5 x 15.7 in) weighing as much as 1,500 kg (3,307 lb). That's serious capacity for mold plates, extrusion dies, and large progressive stamping tools.
Where the U6 H.E.A.T. separates itself from the base U6 is in the flushing and filtration package. Higher-capacity dual digitally controlled flush pumps, a 4-filter filtration system, a larger chiller unit, and Makino's split V-Guide wire guide system all work together to maintain stable cutting conditions when the geometry fights you. Tall parts, poor-flush cavities, and interrupted cuts are where these upgrades earn their keep.
The machine runs wire diameters from 0.100 mm to 0.300 mm (0.004 to 0.012 in), covering everything from fine-detail work to general production cutting. Standard 3-pass machining with 0.20-0.30 mm wire delivers 0.4 um Ra (16 uin Ra) surface finish, and the optional Crystal Machining circuit pushes that down to 0.1 um Ra (4 uin Ra) for mirror-finish applications.
Makino's Hyper-i control sits behind a 24-inch HD touchscreen with pinch, swipe, and drag gestures — it feels more like a tablet than a traditional CNC panel. The interface simplifies job setup and makes the learning curve shorter for operators coming from other platforms. A standard handbox, keyboard, and mouse round out the input options.
Pricing for a new U6 H.E.A.T. typically lands around $175,000-$200,000 depending on configuration and dealer. Used machines from 2014-2019 vintages trade in the $80,000-$140,000 range. The machine competes directly with the Mitsubishi MV2400R, Sodick VL600Q, and AgieCharmilles CUT 400 Sp. For shops doing mold and die, aerospace, or medical work that demands both speed and finish quality in a wire EDM, the U6 H.E.A.T. is one of the strongest options on the market.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 650 mm (25.6 in) |
| Y-Axis Travel | 450 mm (17.7 in) |
| Z-Axis Travel | 420 mm (16.5 in) |
| U Axis | +/-75 mm (+/-3 in) |
| V Axis | +/-75 mm (+/-3 in) |
| Max Taper Angle | 15° |
| Table Size | 910 x 710 mm (35.8 x 28 in) |
| Max Workpiece Size | 1,000 x 800 x 400 mm (39.4 x 31.5 x 15.7 in) |
| Max Workpiece Weight | 1,500 kg (3,307 lb) |
| Tank Size | 1,070 x 880 mm (42.1 x 34.6 in) |
| Wire Diameter Range | 0.100 - 0.300 mm (0.004 - 0.012 in) |
| Surface Finish | 0.4 um Ra (16 uin Ra) standard; 0.1 um Ra (4 uin Ra) with Crystal Machining |
| CNC Control | Makino Hyper-i (24" HD touchscreen) |
| Table Type | 4-sided hardened stainless steel |
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Specifications sourced from makino.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Dual digitally controlled flush pumps and 4-filter filtration system maintain stable cutting in poor-flush conditions where other machines struggle
- Split V-Guide wire guide system provides precise wire positioning and reliable automatic threading across all supported wire sizes
- 1,500 kg (3,307 lb) workpiece capacity handles large mold plates and extrusion dies without maxing out the table
- Hyper-i touchscreen control with tablet-like gestures shortens the learning curve for operators transitioning from other brands
- Crystal Machining option achieves 0.1 um Ra (4 uin Ra) mirror finish for precision mold cavity work
- Larger chiller unit maintains tighter thermal stability during long unattended cuts compared to the base U6
Limitations
- Wire diameter maxes out at 0.300 mm (0.012 in) on the standard H.E.A.T. — the 0.400 mm (0.016 in) capability requires the more expensive H.E.A.T. Extreme model
- At roughly $175K-$200K new, it's priced above some competing large-travel wire EDMs from Mitsubishi and Sodick
- Makino's EDM service network is thinner than their milling machine coverage in some regions, which can mean longer wait times for field service
- Machine footprint and weight require solid floor preparation — plan for proper rigging and leveling during installation
Best For
Frequently Asked Questions
01
The base U6 is a capable large-travel wire EDM. The U6 H.E.A.T. adds a 4-sided hardened stainless table (vs 3-sided on the U6), upgraded dual flush pumps, 4-filter filtration, a larger chiller, and the split V-Guide wire system. The H.E.A.T. Extreme takes it further with a second booster generator and HyperDrive Extreme wire system that handles 0.016 in (0.400 mm) coated wire, cutting 2-3x faster than standard 0.010 in brass wire. The Extreme upgrade can't be retrofitted — it's a factory-only configuration.
02
New U6 H.E.A.T. machines typically price between $175,000 and $200,000 delivered, depending on options and dealer negotiation. Used machines from 2014-2019 show up on the secondary market between $80,000 and $140,000. The H.E.A.T. Extreme commands a premium above the standard H.E.A.T. pricing.
03
The standard U6 H.E.A.T. runs wire from 0.100 mm (0.004 in) up to 0.300 mm (0.012 in). That covers fine-detail work with thin wire all the way to production-speed rough cutting with 0.300 mm. If you need 0.400 mm (0.016 in) coated wire capability for maximum feedrates, you'll need the H.E.A.T. Extreme model.
04
The Hyper-i is purpose-built for EDM work with a 24-inch touchscreen that uses familiar tablet gestures — pinch to zoom, swipe, drag. It's generally considered more intuitive than traditional EDM interfaces. The trade-off is that operators coming from Fanuc or Mitsubishi controls need to relearn the workflow. Most shops report their operators get comfortable with Hyper-i within a week or two of daily use.
05
Yes — this is actually where the H.E.A.T. upgrades matter most. The enhanced flush pumps and 4-filter filtration system keep the dielectric clean and flowing through tall cuts where standard machines lose flushing pressure. The 420 mm (16.5 in) Z-axis travel handles tall workpieces, and the 15-degree taper capability works across the full Z range.
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