Haas Automation 5-Axis Machining Centers

Haas UMC-750

$131,000 - $175,000 Updated 2026-03-10

Key Specifications

X Travel

762 mm (30 in)

Y Travel

508 mm (20 in)

Z Travel

508 mm (20 in)

Max Spindle

8,100 RPM (12,000 RPM optional)

Spindle Taper

CT/BT 40 (HSK-A63 optional)

Tool Capacity

40+1 side-mount

Overview

The Haas UMC-750 is the best-selling 5-axis machining center in North America. At a base price around $131K, it undercuts European 5-axis competitors by 40-60% while putting a 762 x 508 x 508 mm (30 x 20 x 20 in) work envelope and a 500 mm trunnion table on your shop floor.

Haas built this machine around a CT/BT 40 taper inline direct-drive spindle producing 22.4 kW (30 hp) and 122 Nm (90 ft-lb) of torque at 2,000 RPM. Standard max speed is 8,100 RPM, with 12,000 RPM optional. The redesigned version also offers an HSK-A63 spindle option for shops that need stiffer tool-to-spindle interfaces on harder materials. The trunnion tilts +120 to -35 degrees on B and spins 360 degrees continuous on C, both axes moving at 50 degrees per second. Table capacity tops out at 300 kg (660 lb), which covers most 5-axis work outside of heavy steel tombstones.

The Gen III redesign brought meaningful improvements. Haas widened the truck spacing on the linear guides, beefed up the trunnion casting, redesigned the operator door for better ergonomics, and improved chip evacuation throughout the enclosure. Rotary crash protection got an upgrade too. Forum users report holding 0.001 in between rotations after manual calibration with MRZP compensation, though out-of-the-box accuracy across the full rotary envelope sits closer to 0.005 in.

The 40+1 side-mount tool changer handles 89 mm (3.5 in) diameter tools with a 3.6-second chip-to-chip time. That's 2-3x slower than arm-type changers on a DMG Mori DMU 50 or Makino D500, but 40 pockets mean fewer mid-job interrupts. Rapid traverse hits 30.5 m/min (1,200 ipm) on all three linear axes, and max cutting feedrate reaches 16.5 m/min (650 ipm).

Direct competitors include the DMG Mori DMU 50 (stiffer construction, higher price), Okuma MU-4000V (thermal stability, OSP control), and Matsuura MX-520 (compact footprint). The UMC-750's advantage is price combined with the Haas ecosystem. HFO dealers stock common parts, service response is typically same-day in most metro areas, and free online training through Haas gets operators productive fast.

This machine does its best work in aerospace aluminum, medical prototyping, and job shops stepping into simultaneous 5-axis for the first time. It won't out-muscle a Hermle on titanium roughing, but for shops where most of the work is aluminum and composites, it delivers real capability at a price that pencils out. Specs sourced from Haas Automation published data.

Full Specifications

Parameter	Value
X-Axis Travel	762 mm (30 in)
Y-Axis Travel	508 mm (20 in)
Z-Axis Travel	508 mm (20 in)
B Axis Tilt	+120° to -35° (155° total)
C Axis Rotation	360° continuous
B C Axis Speed	50°/sec
Max Spindle Speed	8,100 RPM (12,000 RPM optional)
Spindle Taper	CT/BT 40 (HSK-A63 optional)
Spindle Drive	Inline direct-drive
Spindle Motor Power	22.4 kW (30 hp)
Spindle Torque	122 Nm (90 ft-lb) @ 2,000 RPM
Tool Capacity	40+1 side-mount
Max Tool Diameter	89 mm (3.5 in)
Tool Change Time	3.6 sec chip-to-chip
Trunnion Table Diameter	500 mm (19.7 in)
Max Table Load	300 kg (660 lb)
Rapid Traverse Rate	30.5 m/min (1,200 ipm)
Max Cutting Feedrate	16.5 m/min (650 ipm)
Repeatability	±0.0025 mm (±0.0001 in)
Machine Weight	6,577 kg (14,500 lb)
Machine Dimensions	4,060 x 2,340 x 2,790 mm (159.8 x 92.1 x 109.8 in)
CNC Control	Haas Next Generation Control (NGC)
Coolant Capacity	208 L (55 gal)

Specifications sourced from haascnc.com — verified 2026-03-28

Strengths & Limitations

Strengths

Base price around $131K undercuts the DMG Mori DMU 50 and Hermle C 250 by 40-60%, making 5-axis accessible for job shops
40+1 tool capacity is double what most entry-level 5-axis machines offer, reducing mid-job tool change interrupts on complex parts
Gen III redesign improved trunnion rigidity with wider truck spacing, heavier castings, better chip evacuation, and rotary crash protection
HSK-A63 spindle option now available on the redesigned model, closing the tool interface gap with European competitors
30.5 m/min (1,200 ipm) rapids on all three linear axes keep non-cutting time down during 5-axis repositioning moves
Haas NGC control is straightforward to learn with free online training, and conversational programming gets new operators cutting parts fast
HFO dealer network provides same-day service and parts availability across most of North America

Limitations

8,100 RPM standard spindle is slow for high-speed aluminum finishing; the 12K option adds cost and still trails 15K+ competitors
Rotary axis accuracy of ±15 arc-seconds out of the box means manual calibration with MRZP is needed for tight multi-angle tolerance work
Side-mount tool changer at 3.6 sec chip-to-chip is 2-3x slower than arm-type changers on DMG Mori or Makino 5-axis centers
300 kg table load restricts fixture weight for steel and cast iron 5-axis work compared to 500+ kg capacity on competitors
Cantilever axis stack (Z on Y on X) limits rigidity during extended Y-axis cuts compared to fixed-table 5-axis designs

Best For

Aerospace job shops machining aluminum structural components and cosmetic parts in single setups Medical device prototyping requiring complex contoured surfaces in titanium and cobalt-chrome Job shops adding 5-axis capability for the first time without a six-figure premium over the base machine Shops running 3+2 positional work that want full simultaneous 5-axis growth potential Education and training programs teaching 5-axis programming and operation Low-to-medium volume production of complex parts under 500 mm diameter

Frequently Asked Questions

01 What does a new Haas UMC-750 cost?

Base price for a Gen III UMC-750 is around $131,000. Most shops configure it with the 12,000 RPM spindle, through-spindle coolant, probing, and high-speed machining software, pushing the total to $155,000-$175,000. Used UMC-750s from 2017-2021 sell for $89,500-$120,000 depending on hours and condition.

02 How accurate is the UMC-750 for 5-axis work?

Out of the box, expect about ±0.005 in across the full rotary envelope. With manual calibration using test cuts and MRZP compensation, users on Practical Machinist report getting down to ±0.001 in between rotations. That's solid for most job shop 5-axis work but won't match a Hermle or Kern for ultra-precision applications.

03 Is the UMC-750 rigid enough for steel and titanium?

It handles steel fine at moderate depths of cut. For titanium, it works for finishing and light roughing, but the cantilever axis stack and trunnion design limit how hard you can push compared to a fixed-table 5-axis like the DMU 50. If 50%+ of your work is hard metals, look at the DMG Mori or Okuma alternatives.

04 What changed in the Gen III redesign?

Haas widened the linear guide truck spacing for better rigidity, redesigned the trunnion casting, added an HSK-A63 spindle option, improved the operator door for better access, and overhauled chip evacuation and rotary crash protection. The core travels and spindle power stayed the same, but real-world cutting performance and operator ergonomics improved noticeably.

05 How does the UMC-750 compare to the DMG Mori DMU 50?

The DMU 50 is a stiffer, more capable machine with faster rapids and a standard HSK spindle. It's also roughly $200K+ configured. The UMC-750 gives you 80% of the capability at 60% of the cost. For aluminum-heavy shops, the Haas makes financial sense. For titanium production or tight-tolerance aerospace, the DMU 50 justifies the premium.

06 Does the UMC-750 offer an HSK spindle?

Yes. The redesigned UMC-750 added an HSK-A63 spindle option alongside the standard CT/BT 40 taper. HSK gives you a stiffer tool-to-spindle connection with better concentricity at higher speeds, which matters for finish passes in harder materials. It adds to the configured price, but it closes one of the gaps between the UMC-750 and European competitors.