Haas UMC-1250SS
Image: haascnc.com, Haas Automation
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Tool Capacity
How much does the Haas UMC-1250SS cost?
Manufacturer list price
As published by Haas Automation, verified 2026-10-02. Options, tooling, freight and installation are extra.
Overview
The Haas UMC-1250SS is the fast version of the UMC-1250. It has the same 50 × 30 × 28 in (1,270 × 762 × 711 mm) travels and 30 in (762 mm) platter, with a 12,000 rpm spindle, 1,200 ipm (30.5 m/min) rapids and rotary axes that move at 170°/sec on B and 179°/sec on C.
Those rotary speeds are the reason to choose it. In simultaneous five-axis work the tilt and rotary axes have to keep up with the tool path, and a platter that can cross its +120° to -35° of B tilt at 170°/sec lets the linear axes use more of their 833 ipm (21.2 m/min) cutting feedrate. Indexing between faces on 3+2 jobs gets shorter too. The UMC-1250 is listed at 8,100 rpm, a 650 ipm (16.5 m/min) cutting feedrate and 900 ipm (22.9 m/min) rapids.
What the SS does not add is cutting force. The spindle is rated 30 hp (22.4 kW) and 90 ft-lbf (122 N·m) at 2,000 rpm, the same as on the UMC-1250, and rotary torque is 2,240 ft-lbf (3,037 N·m) on B and 1,854 ft-lbf (2,514 N·m) on C. A shop that needs heavier cuts on this envelope is looking at the UMC-1250SS-50, with 60 hp (44.7 kW) and 140 ft-lbf (189.8 N·m) at 2,200 rpm, not at this machine.
Tool changes match the pace: 1.8 s tool-to-tool and 2.4 s chip-to-chip from the 30+1 side-mount changer. Platter load is 1,000 lb (454 kg) and part swing is 39 in (991 mm), and a part that heavy moving at these rotary speeds is a reason to be conservative with fixture clamping. Haas lists a starting price of US$359,995, and the shipping weight is 18,820 lb (8,537 kg).
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 50 in (1,270 mm) |
| Y-Axis Travel | 30 in (762 mm) |
| Z-Axis Travel | 28 in (711 mm) |
| Spindle Nose to Platter (max) | 32 in (813 mm) |
| Spindle Nose to Platter (min) | 4 in (102 mm) |
| Spindle Motor Power | 30 hp (22.4 kW) |
| Max Spindle Speed | 12,000 rpm |
| Spindle Torque | 90 ft-lbf @ 2,000 rpm (122 N·m @ 2,000 rpm) |
| Spindle Drive | Inline Direct-Drive |
| Spindle Taper | CT40 / BT40 / HSK-A63 |
| Spindle Bearing Lubrication | Air / Oil Injection |
| Spindle Cooling | Liquid Cooled |
| B Axis Travel | 120 ° to -35 ° |
| B Axis Max Speed | 170 °/sec |
| B Axis Torque | 2,240 ft-lbf (3,037 N·m) |
| B Axis Brake Torque | 2,000 ft-lbf (2,712 N·m) |
| C Axis Travel | 360 ° |
| C Axis Max Speed | 179 °/sec |
| C Axis Torque | 1,854 ft-lbf (2,514 N·m) |
| C Axis Brake Torque | 900 ft-lbf (1,220 N·m) |
| C Axis Max Part Swing | 39 in (991 mm) |
| Platter Diameter | 30 in (762 mm) |
| Max Platter Load | 1,000 lb (454 kg) |
| Max Platter Load with Pallet Pool | 500 lb (226.8 kg) |
| Platter T Slot Width | 0.626 in to 0.63 in (15.9 mm to 16 mm) |
| Platter T Slots | 7 |
| Max Cutting Feedrate | 833 ipm (21.2 m/min) |
| Rapid Traverse Rate | 1,200 ipm (30.5 m/min) |
| Max Thrust X | 3,300 lbf (14,680 N) |
| Max Thrust Y | 3,300 lbf (14,680 N) |
| Max Thrust Z | 4,050 lbf (18,015 N) |
| Tool Changer Type | SMTC |
| Tool Capacity | 30+1 |
| Max Tool Diameter (full magazine) | 2.5 in (64 mm) |
| Max Tool Diameter (adjacent pockets empty) | 5 in (127 mm) |
| Max Tool Length | 12 in (305 mm) |
| Max Tool Weight | 12 lb (5.4 kg) |
| Tool Change (tool-to-tool) | 1.8 s |
| Tool Change (chip-to-chip) | 2.4 s |
| Coolant Capacity | 55 gal (208 L) |
| Air Required | 4 scfm @ 100 psi (113 L/min @ 6.9 bar) |
| Inline Air Hose | 3/8 in |
| Air Coupler | 3/8 in |
| Air Pressure Min | 80 psi (5.5 bar) |
| Electrical Service (low voltage) | 220 VAC 3-phase, 70 A |
| Electrical Service (high voltage) | 440 VAC 3-phase, 35 A |
| Shipping Domestic Pallet | 177 × 110 × 121 in (450 × 279 × 307 cm) |
| Shipping Export Crate | 176 × 112.5 × 125 in (447 × 286 × 318 cm) |
| Machine Weight | 18,820 lb (8,537 kg) |
| Shipping Domestic Pallet with 70 plus 1 SMTC | 176 × 110 × 134 in (447 × 279 × 340 cm) |
| Shipping Export Crate with 70 plus 1 SMTC | 176 × 112.5 × 138 in (447 × 286 × 351 cm) |
| Machine Weight with 70 plus 1 SMTC | 18,880 lb (8,564 kg) |
| Shipping Export Crate for Sheet Metal | 125 × 45 × 47 in (318 × 114 × 119 cm) |
| Machine Weight for Sheet Metal Crate | 1,000 lb (454 kg) |
Specifications sourced from haascnc.com — verified 2026-10-02
Strengths & Limitations
Strengths
- B axis at 170°/sec and C axis at 179°/sec for simultaneous five-axis contouring
- 12,000 rpm spindle with 1,200 ipm (30.5 m/min) rapids and an 833 ipm (21.2 m/min) cutting feedrate
- Tool change in 1.8 s tool-to-tool, 2.4 s chip-to-chip
- Keeps the 30 in (762 mm) platter, 1,000 lb (454 kg) load and 39 in (991 mm) part swing of the UMC-1250
- Liquid-cooled inline direct-drive spindle in CT40, BT40 or HSK-A63
Limitations
- Spindle torque is 90 ft-lbf (122 N·m) at 2,000 rpm, no higher than on the 8,100 rpm UMC-1250
- Full-magazine tool diameter is 2.5 in (64 mm) and tool weight is limited to 12 lb (5.4 kg)
- C-axis brake is 900 ft-lbf (1,220 N·m) against 2,000 ft-lbf (2,712 N·m) on B
- Platter load drops to 500 lb (226.8 kg) when a pallet pool is used
Best For
Frequently Asked Questions
01
B, the tilt axis, moves at up to 170°/sec through its range of +120° to -35°. C, the rotary axis, moves at up to 179°/sec through 360°. Drive torque is 2,240 ft-lbf (3,037 N·m) on B and 1,854 ft-lbf (2,514 N·m) on C, with brakes of 2,000 ft-lbf (2,712 N·m) and 900 ft-lbf (1,220 N·m).
02
Speed in the spindle and the linear axes. The UMC-1250 is listed at 8,100 rpm, 650 ipm (16.5 m/min) cutting feed and 900 ipm (22.9 m/min) rapids; the UMC-1250SS at 12,000 rpm, 833 ipm (21.2 m/min) and 1,200 ipm (30.5 m/min). Spindle power and torque, travels, platter and load are the same, so the gain is in cycle time and small-tool surface speed, not in how hard the machine can cut.
03
No. It is rated 30 hp (22.4 kW) with 90 ft-lbf (122 N·m) at 2,000 rpm, the figures the UMC-1250 also lists. The difference is the 12,000 rpm top speed. For more power on these travels, the UMC-1250SS-50 has a CT or BT 50 spindle with 60 hp (44.7 kW) and 140 ft-lbf (189.8 N·m) at 2,200 rpm.
04
1.8 s tool-to-tool and 2.4 s chip-to-chip. The side-mount changer holds 30+1 tools up to 12 in (305 mm) long and 12 lb (5.4 kg), 2.5 in (64 mm) in diameter with the magazine full or 5 in (127 mm) with adjacent pockets empty. Haas also lists a 70+1 changer configuration, at a shipping weight of 18,880 lb (8,564 kg).
05
Power is 220 VAC three-phase at 70 A or 440 VAC three-phase at 35 A. Air is 4 scfm at 100 psi (113 L/min at 6.9 bar), minimum 80 psi (5.5 bar). The machine ships at 18,820 lb (8,537 kg) on a domestic pallet of 177 × 110 × 121 in (450 × 279 × 307 cm); that is the shipping size, not the installed size.
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