ST-15Y

Y-Axis CNC Lathe with 12" x 16" max capacity and 2.5" bar capacity
  • 8.3" Chuck Size
  • 2.5" Bar Capacity
  • 4k RPM
  • 20 hp Power
   
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BUILD & PRICE
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The Haas ST Series high-performance turning centers were designed from the ground up to provide setup flexibility, extreme rigidity, and high thermal stability.

The ST-15Y is an extra-small footprint, big-bore lathe with a generous work envelope. The addition of Y-axis and live tooling allows milling, drilling, and tapping for increased machine capabilities. This machine offers the best performance for the money – the best value – in its class.

  • Extra-small footprint
  • Big-bore spindle
  • Y-axis milling, drilling, and tapping
  • High rpm and rapid speeds
  • Made in the USA

Standard Features

Spindles

  • 4000-rpm Spindle

Turrets & Live Tooling

  • 4000-rpm Live Tooling with C Axis
  • 12-Station Hybrid BOT/VDI Tool Turret

Chip & Coolant Management

  • 30-Gallon Coolant Tank

The Haas Control

  • Media Display M-Code; M130
  • HaasConnect: Remote monitoring
  • Early Power-Failure Detection Module
  • Ethernet Interface
  • Rigid Tapping
  • Spindle Orientation
  • Standard Program Memory, 1 GB
  • Internal High-Voltage Isolated Transformer

Product Options

  • Auto Door for Lathes

Tooling & Fixturing

  • Bolt-On Toolholder Kit, 3/4"
  • VDI Driven Toolholder Kit

Workholding

  • 8.3" Hydraulic Chuck, A2-6

Shipping

  • Lifting Provision

Warranty

  • 1-Year Standard Warranty
Swing Diameter S.A.E METRIC
Max Part Diameter 16.5 in 419 mm
Over Wedge 16.5 in 419 mm
Capacities S.A.E METRIC
Chuck Size 8.3 in 210 mm
Max Cutting Diameter (varies with turret) 12.0 in 305 mm
Max Cutting Length (without workholding) 16 in 406 mm
Bar Capacity 2.50 in 64 mm
Travels S.A.E METRIC
X Axis 7.9 in 200 mm
Y Axis ± 2.0 in ± 51 mm
Z Axis 16.0 in 406 mm
Feedrates S.A.E METRIC
Rapids on X 472 ipm 12.0 m/min
Rapids on Y 472 ipm 12.0 m/min
Rapids on Z 1200 ipm 30.5 m/min
Axis Motors S.A.E METRIC
Max Thrust X 2400 lbf 10676 N
Max Thrust Y 2300 lbf 10231 N
Max Thrust Z 3700 lbf 16458 N
Spindle S.A.E METRIC
Spindle Nose A2-6 A2-6
Max Rating 20.0 hp 14.9 kW
Max Speed 4000 rpm 4000 rpm
Max Torque 150 ft-lbf @ 500 rpm 203 Nm @ 500 rpm
Spindle Bore ø 3.50 in 88.9 mm
Main Spindle C Axis S.A.E METRIC
Max Rating 5.0 hp 3.7 kW
Max Speed 60 rpm 60 rpm
Positioning (±) 0.02 ° 0.02 °
Brake Clamp Force 1000 lbf 4448 N
Brake Diameter 14.4 in 366 mm
Brake Holding Torque 140 ft-lbf 190 Nm
Control Type Interpolated Motion and Positioning Interpolated Motion and Positioning
Tailstock S.A.E METRIC
Hydraulic Quill Travel 3.8 in 95 mm
Manual Body Positioning 20.0 in 508 mm
Max Thrust (Hyd. Quill Only) 1130 lbf 5027 N
Min Thrust (Hyd. Quill Only) 140 lbf 623 N
Turret S.A.E METRIC
Number of Tools 12-Station Hybrid (6 VDI; 6 BOT) 12-Station Hybrid (6 VDI; 6 BOT)
Boring Bar Rear Clearance (from back of turret ) 0.75 in 19.1 mm
Live Tooling S.A.E METRIC
Max Speed 4000 rpm 4000 rpm
Tooling VDI40 VDI40
General S.A.E METRIC
Coolant Capacity 30 gal 114 L
Air Requirements S.A.E METRIC
Air Required 4 scfm @ 100 psi 113 L/min @ 6.9 bar
Electrical Specification S.A.E METRIC
Spindle Speed 4000 rpm 4000 rpm
Drive System Direct Speed, Belt Drive Direct Speed, Belt Drive
Spindle Power 20.0 hp 14.9 kW
Input AC Voltage (3 Phase) - Low 220 VAC 220 VAC
Full Load Amps (3 Phase) - Low 40 A 40 A
Input AC Voltage (3 Phase) - High 440 VAC 440 VAC
Full Load Amps (3 Phase) - High 20 A 20 A

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See the ST Series in Action


LATHE Drilling: EVERYTHING YOU NEED TO KNOW
Mark shows you everything you need to know to drill on a Haas lathe. Whether you have a standard 2-axis lathe, a dual-spindle lathe, or even a live-tool lathe, Mark simplifies the process, and explains all the G and M codes you’ll ever need.
CUT CYCLE TIMES AND POSITION YOUR TURRET USING G53
Mark demonstrates how using a G53 command instead of G28 not only saves valuable cycle time, but also reduces the risk of crashing your machine. Mark walks you through both G-codes, and explains how and when to use each one.
THE HAAS BMT65 TURRET
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 system provides increased cutting performance, longer tool life, and better tool clearance.
Setting Up Live Tools
Properly setting up live tools on a turning center can be tricky. Mark guides you through the process with a step-by-step tutorial that will answer all your questions.

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All prices and specifications subject to change without notice. Freight, rigging, state & local taxes, vendor installation charges, and dealer installed accessories are not included. Not responsible for misprints or typographical errors. Machines shown with optional equipment. Actual product appearance may differ.