ST-20Y

8.3k

CHUCK SIZE

2.5k

BAR CAPACITY

RPM

20 hp

POWER

CNC Lathe w/Y Axis; 11.75″ x 22.5″ (298 x 572 mm) max capacity, 2.5″ (63.5 mm) bar, 21″ (533 mm) swing, ±2.00″ (±50.8 mm) Y-axis travel, 20 hp (14.9 kW) vector drive, 4,000 rpm, A2-6 spindle, 8.3″ (210 mm) chuck, 12-station BMT-65 turret, high-torque live tooling w/C axis, 15″ colour LCD monitor, memory lock keyswitch, spindle orientation, USB port and rigid tapping. Standard toolholder kit included with Hybrid turret.

ST-20Y - Compare to

ST-20Y
Swing Diameter	S.A.E.	METRIC
Max Part Swing	21 "	533 mm
Capacities	S.A.E.	METRIC
Chuck Size	8.3 "	210 mm
Max Cutting Diameter (varies with turret)	12.0 "	305 mm
Max Cutting Length (without workholding)	21 "	533 mm
Bar Capacity	2.5 "	63.5 mm
TRAVELS & FEEDRATES	S.A.E.	METRIC
X Axis	8.4 "	213 mm
Y Axis	±2.00 "	±50.8 mm
Z Axis	22.5 "	572 mm
Rapids on X	472 in/min	12 m/min
Rapids on Y	472 in/min	12 m/min
Rapids on Z	945 in/min	24.0 m/min
Max Thrust X	4100 lb	18238 N
Max Thrust Y	2300 lb	10231 N
Max Thrust Z	5100 lb	22686 N
SPINDLE	S.A.E.	METRIC
Max Rating	20 hp	14.9 kW
Max Speed	4000 rpm	4000 rpm
Max Torque	150 ft-lb @ 500 rpm	203 Nm @ 500 rpm
Spindle Nose	A2-6	A2-6
Spindle Bore ø	3.50 "	88.9 mm
Main Spindle C Axis	S.A.E.	METRIC
Max Rating	5 hp	3.7 kW
Positioning (±)	0.01 °	0.01 °
Brake Clamp Force	1000 lb	4448 N
Brake Diameter	14.4 "	366 mm
Control Type	Interpolated Motion and Control	Interpolated Motion and Control
Turret	S.A.E.	METRIC
Number of Tools	12 Stations	12 Stations
Turret Type	BMT-65	BMT-65
Boring Bar Rear Clearance (from back of turret )	4.0 "	102 mm
Live Tooling	S.A.E.	METRIC
Max Speed	6000 rpm	6000 rpm
Tooling	BMT-65	BMT-65
GENERALS	S.A.E.	METRIC
Air Required	4 scfm, 100 psi	113 L/min, 6.9 bar
Coolant Capacity	55 gal	208 L

Dimensions

See the Auto Parts Loader

Shipping Dimensions

Brochure

Manual

Rotary Table Fit Chart

See our lathes in action

Haas ST-10Y and Parts Catcher Demo

Check out Haas’ ST-10Y compact turning centre doing some Y-axis cutting, and using our productivity-boosting Parts Catcher option.

More info here: haas.co.uk/lathes/st-10y/

Haas Bar Feeder - Haas Option Spotlight

If you want more productivity from your Haas lathe, consider adding a Haas Bar Feeder to your shop. Designed for easy integration with your lathe, the Bar Feeder features a host of features to make operation simple.

ST-20Y Y-Axis Lathe Cutting Demo

Watch our ST-20Y Y-axis turning centre with the BMT65 live tooled turret in action.

The BMT65 Turret and Live Tooling for Haas Lathes

Why move your turned parts to a mill for secondary operations when you can machine them complete on a Haas lathe with the BMT65 Turret and Live Tooling?

The BMT65 Turret and Live Tooling are standard on Haas Y-Axis lathes (ST-20Y through ST-35Y), and optional on non Y-axis models.