Haas DS-30
Key Specifications
Tool Capacity
max cutting diameter
max cutting length
max swing
main spindle speed
main spindle power
Overview
The Haas DS-30 is the base dual-spindle turning center in the Haas DS lineup, built on the proven ST-30 platform. It combines a 22.4 kW (30 hp) main spindle with a fully capable sub-spindle, enabling complete front-and-back turning in a single cycle. Without a Y-axis or live tooling, the DS-30 is purpose-built for shops that need dual-spindle productivity — eliminating part flip and second-op setups — but do not require milling capability on the lathe.
The A2-6 main spindle runs to 4,500 RPM with 407 Nm (300 ft-lb) of torque at 500 RPM. Bar capacity is 76 mm (3.0 in) through an 89 mm (3.5 in) bore, and the main chuck is 254 mm (10 in). The sub-spindle delivers 11.2 kW (15 hp) on an A2-5 nose with a 203 mm (8 in) chuck, spinning to 4,000 RPM. The sub-spindle indexes forward to pick up the part directly from the main spindle at the end of the front operation, eliminating manual handling and achieving consistent chuck-to-chuck positioning.
The 12-station bolt-on turret handles turning, threading, boring, and grooving tools on both spindles in sequence. There is no live tooling on the base DS-30; shops that need cross-drilling or off-center milling features should look at the DS-30Y. For parts that are fully turned on both ends, the 12-station BOT turret provides all the OD, ID, threading, and grooving capability needed.
Max cutting diameter is 349 mm (13.75 in) with 826 mm (32.5 in) of Z-axis cutting length. The sub-spindle travels 810 mm (31.9 in) to reach across from the back. At 7,484 kg (16,500 lb), the DS-30 has excellent mass for a dual-spindle machine of this size, providing solid damping during interrupted cuts and threading operations. Base price starts around $115,000-$130,000, significantly more affordable than the DS-30Y while delivering the core dual-spindle productivity benefit. Specs sourced from Haas Automation published data.
Full Specifications
| Parameter | Value |
|---|---|
| Max Cutting Diameter | 349 mm (13.75 in) |
| Max Cutting Length | 826 mm (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 | 76 mm (3.0 in) |
| Spindle Bore | 89 mm (3.5 in) |
| X Axis Travel | 318 mm (12.5 in) |
| Z Axis Travel | 826 mm (32.5 in) |
| Sub Spindle Travel | 810 mm (31.9 in) |
| Rapid Traverse X | 24.0 m/min (945 ipm) |
| Rapid Traverse Z | 24.0 m/min (945 ipm) |
| Tool Capacity | 12-station BOT turret |
| Machine Weight | 7,484 kg (16,500 lb) |
| Coolant Capacity | 208 L (55 gal) |
| CNC Control | Haas Next Generation Control (NGC) |
Specifications sourced from haascnc.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Dual-spindle design eliminates part flipping and second-op setups, cutting total cycle time by up to 40% on fully turned parts
- 4,500 RPM main spindle speed is the highest in the Haas DS lineup, enabling competitive surface speeds on finishing passes
- Sub-spindle picks parts directly from main spindle with consistent positioning, removing manual handling and quality risk
- 76 mm (3.0 in) bar capacity covers the most common production bar stock sizes for bar-fed dual-spindle manufacturing
- Base price around $115K-$130K is significantly below the DS-30Y, delivering the core dual-spindle benefit without Y-axis premium
Limitations
- No Y-axis or live tooling means any off-center features such as cross-holes, flats, or keyways require a separate VMC setup
- 12-station BOT turret is shared between both spindles, limiting simultaneous processing compared to dual-turret designs
- 8-inch sub-spindle chuck limits back-working diameter relative to the 10-inch main chuck
- 16,500 lb machine weight requires professional rigging and adequate floor preparation
Best For
Frequently Asked Questions
01
The DS-30Y adds a Y-axis with plus or minus 50.8 mm (2.0 in) of travel and a BMT-65 live tooling turret running at 6,000 RPM. It costs roughly $35,000-$50,000 more. The base DS-30 is purely turning with no cross-drilling, flat milling, or tapping. If any parts need off-center features, the DS-30Y eliminates a second VMC setup and pays for itself quickly. If your parts are fully turned with no milling features, the DS-30 saves money and reduces programming complexity.
02
The sub-spindle indexes forward along the Z-axis to a position where both chucks face each other and grip the part simultaneously. The main spindle releases, and the sub-spindle pulls the part back to the working position for back-end turning. The entire handoff takes a few seconds and is programmed with standard Haas macros. The NGC control manages sub-spindle synchronization and provides canned routines for common handoff operations.
03
Yes, the DS-30 is fully compatible with most 12-foot magazine bar feeders rated for 76 mm (3.0 in) bar capacity. The Haas Servo Bar 300 is the factory-matched option. Third-party feeders from LNS, Iemca, and Edge Technologies are also commonly used. A bar feeder combined with a parts catcher enables extended unattended production, with the sub-spindle depositing finished parts automatically.
04
Two ST-30 lathes cost more in total, need two operators or two separate automation systems, and introduce part-handling time between first and second ops. The DS-30 does both operations on one machine with one operator and no part handling. The downside is that if the DS-30 is down for maintenance, both spindles are offline. Shops with very high volumes may prefer redundant single-spindle machines; shops optimizing for fewer operators and lower work-in-process typically prefer the dual-spindle.
05
Base price starts around $115,000-$125,000. Adding a chip conveyor, parts catcher, bar feeder interface, and high-pressure coolant typically pushes the configured price to $135,000-$150,000. Used DS-30 machines are less common on the used market than single-spindle ST models, so pricing varies more widely based on condition and options.
Videos
Haas Automation, Inc.
Haas Automation, Inc.
Haas Automation, Inc.
Machinery Resources International
MachineryValues Inc
Community Discussions
Owner experience and review — practicalmachinist.com/forum/threads/feedback-on-haas-ds-30y-st-30...
Owner experience and review — practicalmachinist.com/forum/threads/haas-ds30-ssy-lathe-turret-alarm...
Community discussion — 2016HaasDS-30SSY Turret Locked In Position | Practical...
Community discussion — haasds30y help
Troubleshooting and problem-solving — HAAS DS-30 CHATTER - cnczone.com
Community discussion — Newbie Drill Sizing for Live Tooling - CNCzone
Troubleshooting and problem-solving — Limit loads on axis travel - CNCzone
Community discussion — Need Help Please!! Haas with manual bar feed - 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.
