Haas DS-25Y
Key Specifications
Max Spindle
Spindle Taper
Tool Capacity
Spindle Power
max cutting diameter
max cutting length
Overview
The Haas DS-25Y steps up from the DS-20Y with a 254 mm (10 in) main chuck, 76 mm (3.0 in) bar capacity, and a 22.4 kW (30 hp) main spindle. It is the mid-range dual-spindle Y-axis turning center in the Haas lineup, built on the same redesigned platform as the ST-25Y but adding a sub-spindle for back-working capability.
The main spindle delivers 407 Nm (300 ft-lb) of torque at 500 RPM with a max speed of 3,400 RPM on an A2-6 nose. The sub-spindle runs 11.2 kW (15 hp) at up to 4,000 RPM with a 203 mm (8 in) chuck on an A2-5 nose. Both spindles support C-axis positioning at plus or minus 0.01 degrees, giving you full mill-turn capability on front and back operations.
Y-axis travel is 102 mm (4.0 in) total on the 12-station BMT-65 turret with 6,000 RPM live tooling at 3.7 kW (5 hp). The BMT-65 turret provides solid clamping rigidity for milling operations. The turret indexes to serve both main and sub-spindle, so your entire turning, milling, cutoff, and back-working cycle runs as a single program.
Max cutting diameter is 349 mm (13.75 in) with a cutting length of 584 mm (23 in). The 76 mm bar capacity covers the most common production bar stock sizes, a meaningful step up from the DS-20Y's 63.5 mm. For production bar feeding operations, that extra half-inch of bar capacity opens up a wider range of part sizes.
At roughly $145,000-$180,000 configured, the DS-25Y bridges the gap between the smaller DS-20Y and the top-of-range DS-30Y. The 30 hp main spindle provides 50% more power than the DS-20Y, which shows up when roughing steel and stainless at production feed rates. Shops running parts in the 50-75 mm bar stock range with features on both ends will find the DS-25Y hits the sweet spot between capability, bar capacity, and price. Specs sourced from Haas Automation published data.
Full Specifications
| Parameter | Value |
|---|---|
| Max Cutting Diameter | 11.75 in |
| Max Cutting Length | 22.5 in |
| Max Swing | 806 mm (31.75 in) |
| Main Spindle Speed | 3,400 RPM |
| Main Spindle Power | 22.4 kW (30 hp) |
| Main Spindle Torque | 407 Nm (300 ft-lb) @ 500 RPM |
| Main Spindle Nose | A2-6 |
| Main Chuck Size | 254 mm (10 in) |
| Sub Spindle Speed | 4,000 RPM |
| Sub Spindle Power | 11.2 kW (15 hp) |
| Sub Spindle Nose | A2-5 |
| Sub Chuck Size | 203 mm (8 in) |
| Bar Capacity | 3.00 in |
| Spindle Bore | 2.31 in |
| X Axis Travel | 318 mm (12.5 in) |
| Y Axis Travel | 102 mm (4.0 in) total / ±50.8 mm (±2.0 in) |
| Z Axis Travel | 584 mm (23 in) |
| Sub Spindle Travel | 556 mm (21.9 in) |
| Rapid Traverse X Y | 12.0 m/min (472 IPM) |
| Rapid Traverse Z | 24.0 m/min (945 IPM) |
| Tool Capacity | 12 Stations |
| Live Tooling Speed | 6,000 RPM |
| Live Tooling Power | 3.7 kW (5 hp) |
| C Axis Positioning | ±0.01° (both spindles) |
| Coolant Capacity | 55 gal |
| CNC Control | Haas Next Generation Control (NGC) |
| Capacities | S.A.E |
| Chuck Size | 6.5 in |
| Max Part Swing | 21.0 in |
| Travels | S.A.E |
| X Axis | 8.40 in |
| Y Axis | ± 2.0 in |
| Z Axis | 22.50 in |
| Feedrates | S.A.E |
| Rapids On X | 472 ipm |
| Rapids On Y | 472 ipm |
| Rapids On Z | 945 ipm |
| Axis Motors | S.A.E |
| Max Thrust X | 4100 lbf |
| Max Thrust Y | 2300 lbf |
| Max Thrust Z | 5100 lbf |
| Spindle | S.A.E |
| Spindle Taper | A2-5 |
| Drive System | Direct Speed, Belt Drive |
| Max Rating | 5.0 hp |
| Max Speed | 4000 rpm |
| Max Torque | 100.0 ft-lbf @ 870 rpm |
| Main Spindle C Axis | S.A.E |
| Positioning | 0.02 ° |
| Brake Diameter | 8.5 in |
| Brake Holding Torque | 140 ft-lbf |
| Control Type | Positioning Only |
| Secondary Spindle | S.A.E |
| Max Sync Speed W Main Spindle | 3400 rpm |
| Chuck Throat | Ø 1.81 in x 1.63 in DEEP |
| Drawbar Adapter Bore | Ø 1.81 in x 4.25 in DEEP |
| Drawbar Bore | Ø 1.03 in x 5.00 in DEEP |
| Secondary Spindle C Axis | S.A.E |
| Secondary Spindle Positioning | S.A.E |
| Turret | S.A.E |
| Od Vs Id Tools | Any Combination (will vary with turret) |
| Boring Bar Rear Clearance | 4.00 in |
| Live Tooling | S.A.E |
| Drive Ratio | 1:1 |
| Tooling | BMT65 |
| General | S.A.E |
| Air Requirements | S.A.E |
| Air Required | 4 scfm @ 100 psi |
| Inline Air Hose | 3/8 in |
| Coupler | 3/8 in |
| Air Pressure Min | 80 psi |
| Electrical Specification | S.A.E |
| Max Spindle Speed | 3400 rpm |
| Spindle Motor Power | 30.0 hp |
| 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 |
| Domestic Pallet | 143.0 in x 90.0 in x 92.0 in |
| Export Pallet | 143.0 in x 90.0 in x 92.0 in |
| Machine Weight | 12700 lb |
Specifications sourced from haascnc.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 30 hp main spindle with 300 ft-lb of torque provides 50% more roughing power than the DS-20Y for production in steel and stainless
- 76 mm (3.0 in) bar capacity covers the most common production stock sizes, a meaningful upgrade from the DS-20Y's 2.5 inches
- Dual-spindle with Y-axis and C-axis on both spindles enables complete done-in-one production without second operations
- 10-inch main chuck and 8-inch sub-spindle chuck provide secure clamping across a wide range of part diameters
- BMT-65 turret with 6,000 RPM live tooling delivers real milling capability on both front and back operations
- Same NGC control as every Haas machine, with dual-spindle synchronization handled through standard G-code
Limitations
- 3,400 RPM main spindle speed is lower than the DS-20Y's 4,000 RPM, limiting surface speed on small-diameter work
- 3.7 kW (5 hp) live tooling motor is the same as the smaller DS-20Y and can feel underpowered for aggressive milling
- Programming dual-spindle with Y-axis operations requires experienced CAM programmers and proper post-processors
- No optional gearbox on the DS-25Y limits low-speed torque for heavy interrupted cuts on large diameters
- Higher price than single-spindle ST-25Y means longer payback period on lower-volume production
Best For
Frequently Asked Questions
01
Base price starts around $145,000. With common options including chip conveyor, high-pressure coolant, parts catcher, and bar feeder interface, configured price runs $160,000-$180,000. The sub-spindle is included in the base configuration.
02
The DS-25Y bumps the main spindle to 30 hp (from 20 hp), the main chuck to 10 inches (from 8 inches), and bar capacity to 3.0 inches (from 2.5 inches). The sub-spindle upgrades from a 6.5-inch to an 8-inch chuck. Expect about $15,000-$20,000 more than the DS-20Y.
03
Same platform, same main spindle specs. The DS-25Y adds a sub-spindle for back-working. If your parts need machining on both ends, the DS-25Y eliminates the second operation. If all your features are on the front, the ST-25Y saves $40,000-$50,000.
04
Yes. The sub-spindle retracts out of the way and the machine operates as a standard Y-axis turning center for parts that only need front-side machining. You get full ST-25Y capability plus the option to engage the sub-spindle when needed.
05
Mastercam, Esprit, GibbsCAM, and Inventor HSM Ultimate all support dual-spindle mill-turn programming for Haas DS machines. You will need a proper post-processor configured for the DS platform. Some shops program simpler dual-spindle cycles directly in G-code.
Videos
Haas Automation, Inc.
Haas Automation UK
Haas Automation, Inc.
Haas Automation UK
Haas Automation, Inc.
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