Horizontal turning machine SB-28

CNC2-axisinclined bed

Overview
The Haas SB-28 is a box-way CNC lathe engineered for heavy-duty turning operations where dynamic stiffness, load-bearing capacity and vibration damping are required. It combines traditional box-way construction with Haas control and support from Haas Factory Outlets to simplify integration and maintenance.

Short description
CNC box-way lathe with 13.5 in (345 mm) max cutting diameter (BMT65), 21.3 in (540 mm) max cutting length, A2-8 spindle nose, 10 in (254 mm) chuck and 2.9 in (74 mm) bar capacity.

Key features

• BMT65 turret (12 stations)
• Hardened and precision ground ways
• Hand-scraped Turcite-B slideways
• 30° slant-bed design
• Compact footprint for shop-floor efficiency
• Standard 10" (254 mm) chuck
• 2.9" (74 mm) bar capacity

Notes

• NOTE: The SB-28 is not compatible with the Haas Bar Feeder and is not available with a parts catcher.

Capacities

• Chuck Size: 10.0 in | 254 mm
• Max Part Swing: 23.6 in | 600 mm
• Max Cutting Diameter (with BMT65): 13.50 in | 345 mm
• Max Cutting Length (varies with workholding): 21.3 in | 540 mm
• Bar Capacity: 2.90 in | 74 mm
• Between Centers (max): 29.7 in | 753 mm

Travels

• X Axis: 9.00 in | 230 mm
• Z Axis: 23.20 in | 590 mm

Feedrates

• Rapids on X: 630 ipm | 16.0 m/min
• Rapids on Z: 787 ipm | 20.0 m/min

Axis Motors

• Max Thrust X: 7780 lbf | 34,607 N
• Max Thrust Z: 7780 lbf | 34,607 N

Spindle

• Spindle Nose: A2-8
• Max Rating: 40.0 hp | 29.8 kW
• Max Speed: 3200 rpm
• Max Torque: 300.0 ft-lbf @ 500 rpm | 407.0 Nm @ 500 rpm
• Draw Tube Bore ø: 2.95 in | 75 mm
• Spindle Bore ø: 3.39 in | 86.0 mm

Main Spindle C Axis

• Max Speed: 60 rpm
• Max Rating: 5.0 hp | 3.7 kW
• Positioning (±): 0.01°
• Brake Diameter: 13.9 in | 353 mm
• Brake Holding Torque: 250 ft-lbf | 339 Nm
• Control Type: Interpolated Motion and Positioning

Tailstock

• Taper: MT5
• Hydraulic Quill Travel: 4.7 in | 120 mm
• Travel: 19.7 in | 500 mm

Turret

• Number of Tools: 12 Stations
• OD vs ID Tools: Any combination (varies with turret)
• Boring Bar Rear Clearance (from back of turret): 2.00 in | 51.0 mm

Live Tooling

• Max Speed: 4000 rpm
• Tooling: BMT65

General

• Coolant Capacity: 40 gal | 151 L

Air Requirements

• Air Required†: 4 scfm @ 100 psi | 113.0 L/min @ 6.9 bar
• Inline Air Hose: 3/8 in
• Coupler (Air): 3/8 in
• Air Pressure Min: 80 psi | 5.5 bar

Electrical Specification

• Drive System: Direct Speed, Belt Drive
• Spindle Power: 40.0 hp | 29.8 kW
• Spindle Speed: 3200 rpm
• Input AC Voltage (3 Phase) - Low: 220 VAC (200-240 VAC)
• Full Load Amps (3 Phase) - Low: 70 A
• Input AC Voltage (3 Phase) - High*: 440 VAC
• Full Load Amps (3 Phase) - High*: 35 A

Dimensions - Shipping

• Domestic Pallet: 172.0 in x 90.0 in x 81.0 in | 437 cm x 229 cm x 206 cm
• Export Pallet: 172.0 in x 90.0 in x 81.0 in | 437 cm x 229 cm x 206 cm
• Weight: 12,600 lb | 5,715.4 kg

Additional technical details

• All specifications listed are for the standard machine configuration. Optional equipment may change the machine’s specifications.
• Optional internal high-voltage transformer available for factory configuration where required.

Technical specifications

• Model: SB-28
• Chuck size: 10.0 in (254 mm)
• Bar capacity: 2.9 in (74 mm)
• Max spindle speed: 3200 rpm
• Spindle power (max): 40 hp (29.8 kW)
• Max cutting diameter (BMT65): 13.5 in (345 mm)
• Max cutting length: 21.3 in (540 mm)
• X travel: 9.00 in (230 mm)
• Z travel: 23.20 in (590 mm)
• Turret: 12-station BMT65
• Tailstock taper: MT5
• Coolant capacity: 40 gal (151 L)
• Shipping weight: 12,600 lb (5,715.4 kg)