Haas DS-30Y
Key Specifications
Max Spindle
Spindle Taper
Tool Capacity
Weight
Spindle Power
max cutting diameter
Overview
The Haas DS-30Y is the top of the Haas dual-spindle turning center lineup. Built on the ST-30 platform, it pairs a 22.4 kW (30 hp) main spindle with a sub-spindle, Y-axis, and live tooling for complete front-and-back machining in a single cycle. With a 254 mm (10 in) main chuck and 76 mm (3.0 in) bar capacity, it handles mid-size production work that needs done-in-one capability.
The main spindle runs up to 4,500 RPM on an A2-6 nose. That is the highest main spindle speed in the DS lineup, giving you better surface speeds on small-diameter finishing and aluminum work. Torque is 407 Nm (300 ft-lb) at 500 RPM. The sub-spindle delivers 11.2 kW (15 hp) at up to 4,000 RPM with a 203 mm (8 in) chuck. Both spindles support C-axis positioning for live tooling work.
Y-axis travel is 102 mm (4.0 in) total on the 12-station BMT-65 turret. Live tooling spins at 6,000 RPM with 3.7 kW (5 hp). The turret serves both spindles, indexing between front and back operations in a single program. Cross-drilling, flat milling, tapping, and hex machining happen on both ends of the part without manual intervention.
Max cutting diameter is 349 mm (13.75 in) with 826 mm (32.5 in) of cutting length. The longer bed compared to the DS-25Y gives you more room for shaft work and parts with extended features. At roughly 7,484 kg (16,500 lb), the DS-30Y has solid mass for vibration damping.
Priced around $150,000-$185,000 configured, the DS-30Y is the most capable done-in-one turning center Haas offers in the mid-size range. The 4,500 RPM main spindle is a meaningful advantage over the DS-25Y's 3,400 RPM for finishing work. It competes directly with the Mazak QT-250MSY and Doosan Lynx 2600LSYB. Both competitors offer more polished controls and slightly tighter tolerances, but the DS-30Y delivers comparable capability at a lower acquisition cost. Popular in medical device, aerospace fastener, and automotive production shops running complete parts from bar stock. Specs sourced from Haas Automation published data.
Full Specifications
| Parameter | Value |
|---|---|
| Max Cutting Diameter | 13.75 in |
| Max Cutting Length | 32.5 in |
| Max Swing | 806 mm (31.75 in) |
| Main Spindle Speed | 4,500 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 | 826 mm (32.5 in) |
| Sub Spindle Travel | 810 mm (31.9 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) |
| Machine Weight | 7,484 kg (16,500 lb) |
| Coolant Capacity | 55 gal |
| CNC Control | Haas Next Generation Control (NGC) |
| Capacities | S.A.E |
| Chuck Size | 8.3 in |
| Max Part Swing | 21.0 in |
| Between Centers Max | 32.5 in |
| Travels | S.A.E |
| X Axis | 9.40 in |
| Y Axis | ± 2.0 in |
| Z Axis | 32.50 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 | 4000 rpm |
| Chuck Throat | Ø 2.00 in x 1.95 in DEEP |
| Drawbar Adapter Bore | Ø 1.81 in x 4.52 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 | 4500 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 | 171.0 in x 90.0 in x 98.0 in |
| Export Pallet | 171.0 in x 90.0 in x 98.0 in |
| Machine Weight | 12200 lb |
Specifications sourced from haascnc.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 4,500 RPM main spindle is the fastest in the DS lineup, providing better surface speeds for finishing and aluminum work
- Dual-spindle with Y-axis and C-axis on both spindles enables complete done-in-one production for parts with features on both ends
- 826 mm (32.5 in) cutting length is the longest in the Haas dual-spindle range, handling shaft work the DS-25Y cannot reach
- 76 mm (3.0 in) bar capacity covers the most common production bar stock sizes for bar-fed manufacturing
- 30 hp main spindle with 300 ft-lb of torque handles production roughing in steel and stainless at competitive feed rates
- BMT-65 turret with live tooling delivers real milling capability on front and back operations
- Priced $30-50K below comparable Mazak and Doosan dual-spindle Y-axis turning centers
Limitations
- 3.7 kW (5 hp) live tooling motor is identical to smaller DS models and limits aggressive milling operations
- Dual-spindle programming complexity requires experienced CAM programmers and proper post-processor setup
- 16,500 lb machine weight requires solid floor preparation and professional rigging for installation
- 8-inch sub-spindle chuck limits back-working to smaller-diameter parts than the 10-inch main chuck can hold
- Higher acquisition cost than single-spindle ST-30Y means payback depends on production volume
Best For
Frequently Asked Questions
01
Base price starts around $150,000. Configured with chip conveyor, high-pressure coolant, parts catcher, and bar feeder interface, expect $170,000-$185,000. The sub-spindle is standard equipment on the DS-30Y.
02
The DS-30Y has a higher 4,500 RPM main spindle speed (versus 3,400 RPM) and longer 826 mm cutting length (versus 584 mm). Same bar capacity and turret. The DS-30Y suits longer parts and applications where higher spindle speed improves surface finish or cycle time.
03
The Mazak offers more main spindle power, a more refined SmoothG control, and generally tighter out-of-the-box tolerances. It also costs $30-50K more. The DS-30Y delivers competitive capability at a lower price point. Shops prioritizing cost-per-part will favor the Haas.
04
The turret serves one spindle at a time, so simultaneous cutting on both spindles is not supported. However, the sub-spindle can spin and position in C-axis while the turret works on the main spindle, and handoff operations happen in seconds.
05
The minimum distance depends on tooling configuration and part geometry. Forum users report approximately 25-30 mm minimum clearance. Work with your Haas HFO to verify the handoff envelope for your specific parts during the machine evaluation.
Videos
Haas Automation, Inc.
Haas Automation, Inc.
Haas Automation, Inc.
MachinesUsed
Pierson Workholding
Community Discussions
Owner experience and review — practicalmachinist.com/forum/threads/feedback-on-haas-ds-30y-st-30...
Community discussion — DS30YSub Spindle Milling
Pricing and buying discussion — haasds30yhelp
Community discussion — Feedback onHaasDS-30Y/ ST-30Ylathes | Page 2 | Practical...
Community discussion — HAAS DS-30Y: Tool Turret Unlock Input - cnczone.com
Troubleshooting and problem-solving — Haas DS30Y Lathe has been nothing but problems since day 1
Troubleshooting and problem-solving — Haas Lathes - CNCzone
Troubleshooting and problem-solving — Need Help! Automatic Tool Probe - CNCzone
Owner experience and review — Haas DS-30Y - CAM? : r/Machinists - Reddit
Owner experience and review — Anyone have tips for using a HAAS DS30Y? : r/Machinists - Reddit
Community discussion — New machine day. Haas DS30Y : r/Machinists - Reddit
Troubleshooting and problem-solving — ds-30y turret : r/Machinists - Reddit
Links to community discussions. Summaries are editorial — visit the original thread for full context.
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