Haas Automation Vertical Machining Centers

Haas GM-1

$170,000 - $220,000 Updated 2026-03-19

Key Specifications

X Travel

3,073 mm (121 in)

Y Travel

1,524 mm (60 in)

Z Travel

279 mm (11 in)

Max Spindle

8100 rpm

Spindle Taper

CT or BT 40

Tool Capacity

18+1 SMTC

Overview

The Haas GM-1 is a 3-axis gantry mill built for large-format machining of composites, aluminum, plastics, and non-ferrous materials. It uses the same moving-bridge gantry architecture as the Haas GR router series but replaces the router spindle with a proper milling spindle, giving shops the large work envelope of a gantry machine with enough rigidity for light milling operations.

Travel is 3,073 x 1,524 x 279 mm (121 x 60 x 11 in). The X and Y envelope covers large aerospace panels, composite layups, pattern boards, and sign blanks that would require multiple setups on a standard VMC. Z-axis travel at 279 mm (11 in) is limited compared to column-type machines, reflecting the gantry platform's focus on surface machining and profiling rather than deep-cavity work.

The spindle runs at 10,000 RPM with 11.2 kW (15 hp) through an inline direct-drive system with CT/BT 40 taper. While the GM-2-5AX gets a 20,000 RPM HSK spindle, the GM-1's 40-taper 10,000 RPM unit provides broader tool compatibility and more torque for face milling and moderate material removal. The 18+1 SMTC offers 1.75-second tool-to-tool changes.

The table measures 3,048 x 1,524 mm (120 x 60 in) and supports 1,814 kg (4,000 lb). That is enough for large composite structures, foam patterns, and multi-fixture aluminum setups. Rapids run at 30.5 m/min (1,200 ipm) on X, 30.5 m/min (1,200 ipm) on Y, and 30.5 m/min (1,200 ipm) on Z.

At approximately $170,000-$220,000 configured, the GM-1 fills the gap between the GR gantry routers and the GM-2-5AX. It provides proper 40-taper milling capability on a large gantry platform without the complexity and cost of a 5-axis gimbal head. For shops trimming composites, profiling aluminum panels, machining patterns and molds in foam or Ren Board, and cutting large plastic parts, the GM-1 delivers a massive work envelope at a competitive price. Specs derived from Haas GR and GM-2-5AX published data.

Full Specifications

Parameter	Value
X-Axis Travel	3,073 mm (121 in)
Y-Axis Travel	1,524 mm (60 in)
Z-Axis Travel	279 mm (11 in)
Max Spindle Speed	8100 rpm
Spindle Taper	CT or BT 40
Spindle Motor Power	30.0 hp
Spindle Torque Max	62 Nm (46 ft-lbf) @ 1,700 RPM
Spindle Drive	Inline Direct-Drive
Tool Capacity	18+1 SMTC
Tool To Tool	1.75 sec (avg)
Chip To Chip	2.0 sec (avg)
Max Tool Diameter	2.5 in
Max Tool Weight	12.0 lb
Table Size	3,048 x 1,524 mm (120 x 60 in)
Table Load Max	1,814 kg (4,000 lb)
Rapid Traverse X	30.5 m/min (1,200 ipm)
Rapid Traverse Y	30.5 m/min (1,200 ipm)
Rapid Traverse Z	30.5 m/min (1,200 ipm)
Machine Weight	7,258 kg (16,000 lb)
CNC Control	Haas Next Generation Control (NGC)
Coolant Capacity	95 gal
Air Required	4 scfm @ 100 psi
Travels	S.A.E
X Axis	121.00 in
Y Axis	61.00 in
Z Axis	16.00 in
Spindle Nose To Table	2.5 in
Spindle	S.A.E
Max Rating	30.0 hp
Max Speed	8100 rpm
Max Torque	90.0 ft-lbf @ 2000 rpm
Drive System	Inline Direct-Drive
Taper	CT or BT 40
Bearing Lubrication	Air / Oil Injection
Cooling	Coolant Jacket
Table	S.A.E
Length	123.0 in
Width	53.0 in
Thickness	1.0 in
Max Weight On Table	6000 lb
Between Columns	62.0 in
Feedrates	S.A.E
Max Cutting	800 ipm
Rapids On X	800 ipm
Rapids On Y	2100 ipm
Rapids On Z	1100 ipm
Axis Motors	S.A.E
Max Thrust X	4498 lbf
Max Thrust Y	1645 lbf
Max Thrust Z	2742 lbf
Tool Changer	S.A.E
Type	SMTC
Capacity	30+1
Max Tool Diameter Large	3.5 in
Max Tool Length	11.00 in
General	S.A.E
Air Requirements	S.A.E
Inline Air Hose	3/8 in
Coupler	3/8 in
Air Pressure Min	80 psi
Electrical Specification	S.A.E
Input Ac Voltage Low	220 VAC
Full Load Amps Low	70 A
Input Ac Voltage High	440 VAC
Full Load Amps High	35 A
Dimensions Shipping	S.A.E
Export Pallet	215.0 in x 91.0 in x 98.0 in
Machine Weight	16200 lb

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

Strengths & Limitations

Strengths

3,073 mm (121 in) X-travel covers large aerospace panels, composite structures, and pattern boards in a single setup
40-taper milling spindle provides proper tool rigidity and torque compared to GR-series router spindles
1,524 mm (60 in) Y-travel handles wide workpieces that would require multiple setups on column-type VMCs
Moving-bridge gantry design keeps the workpiece stationary, which is critical for large, thin, or delicate parts
4,000 lb table load supports heavy fixtures and workpieces across the full table area
18+1 SMTC with 1.75-second tool changes maintains production efficiency on multi-tool jobs

Limitations

279 mm (11 in) Z-travel limits the machine to surface machining and profiling, not deep-cavity work
15 hp spindle is designed for composites and aluminum, not aggressive steel or cast iron cutting
10,000 RPM max spindle speed is lower than the GM-2-5AX's 20,000 RPM for high-speed composite trimming
Large footprint requires significant floor space and may need foundation work for the gantry structure

Best For

Composite trimming, drilling, and profiling on large aerospace panels and structures Pattern and mold making in foam, Ren Board, and modeling materials Large-format aluminum profiling for aerospace structural components and fixture plates Sign manufacturing and large plastic part machining requiring extensive X-Y travel Shops needing gantry-scale work envelope with proper milling capability beyond router-class machines

Frequently Asked Questions

01 What does a new Haas GM-1 cost?

Base price starts around $170,000. With through-spindle coolant, probing, and dust collection options, a configured GM-1 runs $190,000-$220,000.

02 What is the difference between the GM-1 and GM-2-5AX?

The GM-2-5AX adds B and C rotary axes with a gimbal head and a 20,000 RPM HSK spindle for simultaneous 5-axis work. The GM-1 is a 3-axis machine with a 40-taper 10,000 RPM spindle. The GM-1 is simpler and less expensive; the GM-2-5AX is for 5-axis composite and aluminum contouring.

03 Can the GM-1 cut steel?

Light steel milling is possible with the 40-taper spindle and 62 Nm of torque, but the gantry platform is designed for composites, aluminum, plastics, and non-ferrous materials. For steel work, a column-type VMC like the VF-series provides better rigidity.

04 How does the GM-1 compare to the GR-510?

The GR-510 uses a high-speed router spindle optimized for plastics and wood. The GM-1 has a proper 40-taper milling spindle with more rigidity and torque for aluminum and harder materials. The GM-1 is the step up when you need real milling capability on a gantry platform.