SOLD-Haas ST-20 CNC Lathe
Manufactured in 2019
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Haas ST Series
The Haas ST Series high-performance turning centers were designed from the ground up to provide setup flexibility, extreme rigidity, and high thermal stability. These machines offer the best performance for the money – the best value – in their class. The ST-20 is a rigid machine, with a large bar capacity, superior cutting performance, and a host of productivity-enhancing options.
Capacities
Chuck Size: 8.3”
Max. Part Swing: 21.0”
Max. Cutting Diameter: 11.75”
Bar Capacity: 2.50”
Travels
X-Axis: 8.4”
Y-Axis: ±2.0”
Z-Axis: 22.50”
Feedrates
Rapids on X: 472 ipm
Rapids on Y: 472 ipm
Rapids on Z: 945 ipm
Axis Motors
Max. Thrust X: 4100 lbf
Max. Thrust Y: 2300 lbf
Max. Thrust Z: 5100 lbf
Spindle
Spindle Nose: A2-6
Max Rating: 20.0 hp
Max Speed: 4000 rpm
Max Torque: 150 ft-lbf @ 500 ipm
Spindle Bore: 3.50”
Main Spindle C-Axis
Max Rating: 5.0 hp
Max Speed: 60 rpm
Positioning: ±0.01°
Brake Diameter: 13.9”
Brake Holding Torque: 250 ft-lbf
Control Type: Interpolated Motion and Positioning
Sub-Spindle
Chuck Size: 5.3”
Spindle Nose: A2-5
Max Speed: 6000 rpm
Max Sync Speed w/ Main Spindle: 4800 rpm
Spindle Bore (without chuck and drawbar installed): 1.50”
Integrated Brake Torque: 17 ft-lbf
Spindle Orientation Accuracy (Requires SO): ± 0.02°
Rapids (B-Axis): 400 ipm
Turret
Number of tools: 12 stations
OD vs ID Tools: Any combination (vary with turret)
Boring Bar Rear Clearance: 4.00”
General
Coolant Capacity: 55 gal.
Air Requirements
Air Required: 4 scfm @ 100 psi
Inline Air Hose: 3/8 in
Coupler (air): 3/8 in
Air Pressure Min: 80 psi
Electrical Specification
Spindle Speed: 4000 rpm
Drive System: Direct Speed, Belt Drive
Spindle Power: 20 hp
Input AC Voltage 3-phase-low: 220 VAC
Shipping Dimensions
Domestic Pallet: 143” x 90” x 92”
Weight: 10480 lbs.
