Haas SB-35L
Key Specifications
Max Spindle
Spindle Taper
Tool Capacity
Weight
Spindle Power
max cutting diameter
Overview
The Haas SB-35L is the long-bed variant of the SB-35 box-way turning center, extending the Z-axis to 1,524 mm (60 in) for long shafts, pump cylinders, and extended tubular components. It retains all the box-way rigidity advantages of the standard SB-35 while adding 508 mm (20 in) of additional Z-axis travel for workpieces that exceed the standard bed length.
The spindle delivers 29.8 kW (40 hp) with a max speed of 2,500 RPM on an A2-8 spindle nose. Peak torque is 542 Nm (400 ft-lb) at 500 RPM, with the optional gearbox pushing 1,898 Nm (1,400 ft-lb) at 150 RPM. The 305 mm (12 in) chuck and 89 mm (3.5 in) bar capacity match the standard SB-35. Max cutting diameter is 406 mm (16 in).
The hardened and ground box ways define this machine. For long-shaft turning where rigidity across the entire cutting length is critical, box ways provide more consistent support than linear guides. On long, slender parts with high length-to-diameter ratios, the vibration damping characteristics of box ways help maintain surface finish and dimensional accuracy from one end to the other.
The 12-station bolt-on turret handles turning operations. Like the standard SB-35, this is a turning-focused machine without live tooling or Y-axis in the base configuration. The tailstock provides steady support for long workpieces, and optional steady rests are available for parts with high deflection risk.
At $105,000-$130,000 configured, the SB-35L fills a specific niche: long-bed box-way turning for shops that need both rigidity and reach. It competes with the Doosan Puma 3100L and Okuma LB4000 EX II L in shops that prioritize cut quality on long parts in demanding materials. Popular in oil and gas, hydraulic cylinder manufacturing, and shops machining long shafts and spindles. Specs derived from Haas Automation published SB-35 and ST-30L data.
Full Specifications
| Parameter | Value |
|---|---|
| Max Cutting Diameter | 13.50 in |
| Max Cutting Length | 49.6 in |
| Max Swing Over Front Apron | 838 mm (33 in) |
| Max Swing Over Cross Slide | 559 mm (22 in) |
| Max Spindle Speed | 2500 |
| Spindle Motor Power | 40.0 hp |
| Spindle Torque | 542 Nm (400 ft-lb) @ 500 RPM |
| Spindle Torque Optional Gearbox | 1,898 Nm (1,400 ft-lb) @ 150 RPM |
| Spindle Nose | A2-8 |
| Spindle Bore | 4.13 in |
| Chuck Size | 12.0 in |
| Bar Capacity | 3.50 in |
| X Axis Travel | 318 mm (12.5 in) |
| Z Axis Travel | 1,524 mm (60 in) |
| Rapid Traverse X | 10.2 m/min (400 IPM) |
| Rapid Traverse Z | 15.2 m/min (600 IPM) |
| Tool Capacity | 12 Stations |
| Way Type | Hardened and ground box ways |
| Coolant Capacity | 100 gal |
| Machine Weight | 9,525 kg (21,000 lb) |
| CNC Control | Haas Next Generation Control (NGC) |
| Capacities | S.A.E |
| Max Part Swing | 23.6 in |
| Between Centers Max | 58.8 in |
| Travels | S.A.E |
| X Axis | 9.00 in |
| Z Axis | 52.00 in |
| Feedrates | S.A.E |
| Rapids On X | 630 ipm |
| Rapids On Z | 787 ipm |
| Axis Motors | S.A.E |
| Max Thrust X | 7780 lbf |
| Max Thrust Z | 7780 lbf |
| Spindle | S.A.E |
| Spindle Taper | A2-8 |
| Max Rating | 40.0 hp |
| Max Speed | 4000 rpm |
| Max Torque | 425.0 ft-lbf @ 325 rpm |
| Draw Tube Bore | 3.58 in |
| Main Spindle C Axis | S.A.E |
| Control Type | Interpolated Motion and Positioning |
| Tailstock | S.A.E |
| Taper | MT5 |
| Hydraulic Quill Travel | 4.7 in |
| Travel | 39.4 in |
| Turret | S.A.E |
| Od Vs Id Tools | Any Combination (will vary with turret) |
| Boring Bar Rear Clearance | 2.00 in |
| Live Tooling | S.A.E |
| 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 |
| Drive System | Direct Speed, Belt Drive |
| 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 | 214.5 in x 90.5 in x 99.0 in |
| Export Pallet | 214.5 in x 90.5 in x 99.0 in |
| Machine Weight | 16425 lb |
Specifications sourced from haascnc.com — verified 2026-03-28
Strengths & Limitations
Strengths
- 1,524 mm (60 in) Z-axis travel with box-way construction handles long shafts and cylinders with superior rigidity
- 40 hp spindle with optional 1,400 ft-lb gearbox provides serious roughing power for demanding materials on long parts
- Hardened box ways maintain vibration damping across the full 60-inch cutting length for consistent surface finish
- 12-inch chuck on A2-8 nose securely clamps large-diameter flanges and housings for heavy turning
- Box-way construction excels at heavy interrupted cuts on long castings and forgings
- At $105-130K, undercuts comparable long-bed box-way lathes from Okuma and Doosan
Limitations
- 2,500 RPM max spindle speed limits surface speed on small-diameter and aluminum work
- Slower rapids at 400/600 IPM add non-cutting time compared to linear-guide machines
- No live tooling or Y-axis in the base configuration limits to turning-only operations
- Extended bed length creates a larger footprint that consumes more shop floor space
Best For
Frequently Asked Questions
01
Base price starts around $105,000. With tailstock, gearbox, chip conveyor, steady rest, and high-pressure coolant, configured price runs $120,000-$130,000. The long-bed premium over the standard SB-35 is approximately $15,000.
02
The SB-35L extends Z-axis travel from 1,016 mm (40 in) to 1,524 mm (60 in). Spindle, chuck, and cross-slide specs are identical. The longer bed adds weight, footprint, and a price premium. Choose the L variant when your parts regularly exceed 40 inches in length.
03
The SB-35L uses box ways for rigidity while the ST-30L uses linear guides for speed. The SB-35L has a 40 hp spindle versus 30 hp on the ST-30L, and delivers 400 ft-lb of torque versus 300 ft-lb. The SB-35L costs more but provides significantly better cutting performance in tough materials.
04
For parts with high length-to-diameter ratios (typically greater than 5:1), a steady rest is recommended to prevent deflection and chatter. The tailstock provides end support, but mid-span support from a steady rest is essential for achieving tight tolerances on long, slender workpieces.
Videos
Haas Automation, Inc.
