Haas Automation 5-Axis Machining Centers

Haas UMC-400SS

$179,995 - $230,000 Updated 2026-03-19

Key Specifications

X Travel

432 mm (17 in)

Y Travel

279 mm (11 in)

Z Travel

330 mm (13 in)

Max Spindle

12000 rpm

Spindle Taper

CT or BT 40

Tool Capacity

30+1 SMTC

Overview

The Haas UMC-400SS is the super-speed variant of the UMC-400, pairing the compact 432 x 279 x 330 mm (17 x 11 x 13 in) travel envelope with a 15,000 RPM inline direct-drive spindle. The SS designation brings faster spindle speed, faster rapids, and a quicker tool changer compared to the standard UMC-400, making this the machine for shops running small aluminum 5-axis parts where every second of cycle time counts.

The 11.2 kW (15 hp) spindle delivers 62 Nm (46 ft-lbf) of torque at 1,700 RPM while spinning to 15,000 RPM. That nearly 85% speed increase over the standard 8,100 RPM dramatically improves surface footage on small-diameter end mills in aluminum, which is exactly the kind of work this machine was designed for. The CT/BT 40 taper accepts standard tooling shared across any Haas 40-taper VMC.

The trunnion carries a 230 mm (9.1 in) platter with a 45.4 kg (100 lb) capacity. The B-axis tilts from +120 to -45 degrees with 407 Nm of continuous torque, and the C-axis provides full 360-degree rotation with 285 Nm of continuous torque. Maximum part swing is 368 mm (14.5 in). These are the same robust trunnion specs as the standard UMC-400, unchanged by the SS upgrade.

Rapids run at 30.5 m/min (1,200 ipm) on all three linear axes, a 33% improvement over the standard UMC-400's 22.9 m/min. The 30+1 SMTC posts faster tool change times than the standard model, cutting overhead on multi-tool jobs. At approximately 3,411 kg (7,520 lb), the machine has the same compact footprint as the standard UMC-400 and requires only 220 VAC at 40 amps. The UMC-400SS is the highest-performance compact 5-axis machine Haas offers, targeting medical device, dental, and precision component manufacturers who need speed and simultaneous 5-axis capability in a small package. Specs derived from Haas Automation published data for the UMC-400 and UMC SS platform.

Full Specifications

Parameter	Value
X-Axis Travel	432 mm (17 in)
Y-Axis Travel	279 mm (11 in)
Z-Axis Travel	330 mm (13 in)
Spindle Nose To Platter Max	432 mm (17 in)
Spindle Nose To Platter Min	102 mm (4 in)
Max Spindle Speed	12000 rpm
Spindle Taper	CT or BT 40
Spindle Motor Power	15.0 hp
Spindle Torque Max	62 Nm (46 ft-lbf) @ 1,700 RPM
Spindle Drive	Inline Direct-Drive
Spindle Cooling	Liquid Cooled
Platter Diameter	9.10 in
Platter Load Max	45.4 kg (100 lb)
B Axis Tilt	S.A.E
B Axis Speed	120 °/sec
B Axis Torque Continuous	407 Nm (300 ft-lbf)
B Axis Brake Torque	576 Nm (425 ft-lbf)
C Axis Rotation	S.A.E
C Axis Speed	150 °/sec
C Axis Torque Continuous	285 Nm (210 ft-lbf)
C Axis Brake Torque	271 Nm (200 ft-lbf)
Max Part Swing	14.5 in
Tool Capacity	30+1 SMTC
Tool To Tool	1.80 s
Chip To Chip	2.40 s
Max Tool Diameter	2.5 in
Max Tool Length	7.00 in
Max Cutting Feedrate	21.2 m/min (833 ipm)
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	3,411 kg (7,520 lb)
CNC Control	Haas Next Generation Control (NGC)
Coolant Capacity	45 gal
Air Required	4 scfm @ 100 psi
Electrical Low	220 VAC 3-phase, 40 A
Electrical High	440 VAC 3-phase, 20 A
Travels	S.A.E
X Axis	17.00 in
Y Axis	11.00 in
Z Axis	13.00 in
Spindle Nose To Platter	4.0 in
Trunnion	S.A.E
Max Weight On Platter	100 lb
Spindle	S.A.E
Max Rating	15.0 hp
Max Speed	100 °/sec
Max Torque	46.0 ft-lbf @ 1700 rpm
Drive System	Inline Direct-Drive
Taper	CT or BT 40
Bearing Lubrication	Air / Oil Injection
Cooling	Air Cooled
Travel	360 °
Torque	210 ft-lbf
Brake Torque	200 ft-lbf
Feedrates	S.A.E
Max Cutting	833 ipm
Rapids On X	1200 ipm
Rapids On Y	1200 ipm
Rapids On Z	1200 ipm
Tool Changer	S.A.E
Type	SMTC
Capacity	30+1
Max Tool Diameter Large	5.0 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	60 A
Input Ac Voltage High	440 VAC
Full Load Amps High	30 A
Dimensions Shipping	S.A.E
Domestic Pallet	102.0 in x 91.5 in x 98.0 in
Export Pallet	102.0 in x 91.5 in x 98.0 in
Machine Weight	7520 lb

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

Strengths & Limitations

Strengths

15,000 RPM spindle delivers nearly 85% more speed than the standard UMC-400 for dramatically faster aluminum finishing with small tools
30.5 m/min (1,200 ipm) rapids are 33% faster than the standard model, reducing non-cutting time on small-part programs
Compact 3,411 kg footprint fits in shops with limited floor space and runs on standard 40-amp shop power
Same proven trunnion with full simultaneous 5-axis capability for complex medical, dental, and precision components
Faster SMTC tool change times cut overhead on multi-tool medical and dental parts
40-taper tooling compatibility lets shops share tooling with existing Haas VMCs

Limitations

45.4 kg (100 lb) platter capacity and 9.1-inch platter diameter restrict work to small parts only
15 HP spindle power limits aggressive roughing in stainless and titanium compared to the larger UMC-500SS
Price premium of roughly $23K over the standard UMC-400 requires volume to justify the speed upgrade
432 mm X-travel constrains part size; shops needing more room should consider the UMC-500SS

Best For

Medical device manufacturers producing small implants and instruments in titanium and cobalt-chrome at high speeds Dental labs and implant manufacturers running high-volume small-batch 5-axis parts in aluminum and titanium Watch, jewelry, and precision instrument manufacturers machining complex geometries with fine surface finishes Prototype shops needing the fastest possible cycle times on small 5-axis parts Shops upgrading from a standard UMC-400 to increase throughput on existing 5-axis programs

Frequently Asked Questions

01 What does a new Haas UMC-400SS cost?

Base price starts at approximately $179,995. With through-spindle coolant, probing, and production options, expect $210,000 to $230,000 for a fully configured machine.

02 What is the difference between the UMC-400 and UMC-400SS?

The SS version increases spindle speed from 8,100 to 15,000 RPM, boosts rapids from 22.9 to 30.5 m/min, and adds a faster SMTC tool changer. Spindle power and torque remain the same at 15 HP and 62 Nm. The trunnion capacity and travel envelope are identical. The SS costs roughly $23K more.

03 Can the UMC-400SS handle steel and titanium?

Yes, but the 15 HP spindle and compact envelope are designed primarily for small parts. It will cut steel and titanium at lower RPMs, but the UMC-500SS or UMC-750SS are better choices for heavier materials and larger parts.

04 How does the UMC-400SS compare to the UMC-500SS?

The UMC-500SS has 610 x 406 x 406 mm of travel versus 432 x 279 x 330 mm, a 30 HP spindle with 122 Nm of torque versus 15 HP and 62 Nm, and a larger platter with 500 lb capacity. Choose the UMC-400SS for small parts that fit within its envelope; the UMC-500SS for medium-sized work.