ST-20Y

   
 
Y-Axis CNC Lathe with 11.75" x 22.5" max capacity and 2.5" bar capacity
  • 8.3" Chuck Size
  • 2.5" Bar Capacity
  • 4k RPM
  • 20 hp Power

美元价格不包括关税、报关费用、保险费、增值税及运费。
USD prices DO NOT include customs duty, customs fees, insurance, VAT, or freight.

人民币价格包含关税、报关费用、货运保险和增值税, 但不包括运费。
CNY prices include customs duty, customs fees, insurance, and VAT. DOES NOT include freight.

* V Model Machines are only available in CNY pricing

We’ve completely redesigned our best-selling ST-20 Series turning centers to provide even more performance, features, and value than ever before. We’ve re-engineered everything – from the ground up – to create a more rigid machine, with larger bar capacity, superior cutting performance, and a host of productivity-enhancing options.

  • New castings – more compact and more rigid
  • 11% smaller footprint than its predecessor
  • Larger spindle bore for increased bar capacity
  • Increased Z-axis travel
  • Auto Door standard
  • WiFi standard
  • Ideal for high-volume, high-production environments
  • Made in the USA

TOTALLY REDESIGNED


  • New castings – rigid structure, compact footprint
  • 11% smaller footprint
  • Larger spindle bore
  • Increased Z-axis travel

Standard Features

Spindles

  • 4000-rpm Spindle

Turrets & Live Tooling

  • 4000-rpm Live Tooling with C axis, 12-Station BMT65 Turret

Chip & Coolant Management

  • 55-Gallon Coolant Tank

The Haas Control

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

Product Options

  • Auto Door for Lathes

Tooling & Fixturing

  • BMT65 Standard Toolholder Kit
  • BMT65 Metric Standard Toolholder Kit
  • BMT65 Driven Toolholder Kit

Workholding

  • 8.3" Hydraulic Chuck, A2-6

Warranty

  • 1-Year Standard Warranty

Overview

We’ve completely redesigned our best-selling ST-20 Series turning centers to provide even more performance, features, and value than ever before. We’ve re-engineered everything – from the ground up – to create a more rigid machine, with larger bar capacity, superior cutting performance, and a host of productivity-enhancing options.

  • New castings – more compact and more rigid
  • 11% smaller footprint than its predecessor
  • Larger spindle bore for increased bar capacity
  • Increased Z-axis travel
  • Auto Door standard
  • WiFi standard
  • Two-Stage Automatic Parts Catcher (Optional)
  • Sub-Spindle (Optional)
  • Automatic Parts Loader (Optional)

Specification Comparison (Inch)

       NEW MODEL     PREVIOUS MODEL
Footrpint (Length, Depth, Height) without conveyor 130" x 64" x 77" 125" x 78" x 77"
Maximum Part Swing 21.0" 31.75"
Bar Capacity, Maximum Spindle Speed 2.5", 4000-rpm 2.0", 4000-rpm
Maximum Power Rating, Drive System 20 hp, Belt Drive 20 hp, Belt Drive
Spindle Nose, Chuck Size A2-6, 8.3" A2-6, 8.3"
Maximum Cutting Diameter (with BOT turret) 15" 15"
Maximum Cutting Diameter (with BMT65 turret) 11.75"  
Maximum Cutting Length (varies with workholding) 22.5" 21"
Axis Travels (X, Z)  8.4", 22.5" 9.3", 21.0"
Y-Axis Travel (Y-axis models only) 4.0" 4.0"

Specification Comparison (Metric)

  NEW MODEL PREVIOUS MODEL
Footrpint (Length, Depth, Height) without conveyor 3302 x 1626 x 1956 mm 3175 x 1981 x 1956 mm
Maximum Part Swing 533 mm 806 mm
Bar Capacity, Maximum speed 63.5 mm, 4000-rpm 51 mm, 4000-rpm
Maximum Power Rating, Drive System 14.9 kW, Belt-Drive 14.9 kW, Belt-Drive
Spindle Nose, Chuck Size A2-6, 210 mm A2-6, 210 mm
Maximum Cutting Diameter (with BOT turret) 381 mm 381 mm
Maximum Cutting Diameter (with BMT65 turret) 298  
Maximum Cutting Length (varies with workholding) 572 mm 533  mm
Axis Travels (X, Z) 213 mm, 572 mm 236 mm, 533 mm
Y-axis Travel (Y-axis models only) 100 mm 100 mm

Increased Bore Size

The redesigned ST-20/Y has a 2.5" (63.5 mm) drawtube bore. It is 25% larger than its predecessor for increased bar capacity. The included chuck also has a larger throat to accomodate larger parts within the chuck jaws, or for greater clearance when boring or threading large holes.

Improved Part Loading Ergonomics

The more compact footprint and redesigned sheetmetal of the new design yield a shorter distance between the door and center of the chuck for better ergonomics. The reduced reach to the chuck makes it easier for machine operators to manually load and unload parts.

Increased Wedge Angle

We’ve increased the angle of the wedge from 45 degrees to 55 degrees, which improves the overall chip flow inside the work envelope, and reduces the machine’s footprint by 11%.

Automatic Door Standard

The Haas Auto Door comes standard on the redesigned machines, reducing operator fatigue, and simplifying automation. The Auto Door opens the machine doors automatically via an M-code, or can open them manually via a button on the control pendant. This reduces operator fatigue during repetitive machining operations, and allows for unattended operation when used with a robotic loader or our optional APL. The doors close automatically at Cycle Start, and can be controlled via settings to open at the end of a cycle, or at an Optional Stop.

  • Improves machine ergonomics
  • Reduces operator fatigue during repetitive machining operations
  • Operates automatically via M-code, or manually via a button on the control pendant
  • Allows for unattended operation when used in conjunction with a robotic loader or APL
  • Closes automatically at Cycle Start, and can open automatically at cycle end or an Optional Stop 

WiFi Connectivity Standard

All Haas machines come standard with built-in WiFi for fast, wireless connectivity between the Haas control and a local area network. Use WiFi to easily share and transfer files wirelessly, and monitor your machine remotely via HaasConnect mobile machine monitoring. It is easily set up through the Haas control, and supports Netshare capabilities. 

  • No cables required
  • Ideal for large shops with many machines
  • Ideal for shops where the machine is far from the network router
  • Easily transfer and share files 

Sub-Spindle (optional)

Our optional finishing sub-spindle will not only make you more productive, but also will provide new options for finishing the 2nd-op side of your parts.

This affordable A2-5 spindle is equipped with a 5.3" (135 mm) hydraulic chuck, and will fully synchronize with the main spindle to provide effortless “in-cycle” part handoff. This allows you to finish both sides of your part in a single setup – simply load your raw workpiece, and the next time you open the door, you’ll have a finished part. A built-in part ejector propels the finished part into the optional parts catcher for automated operation. Note: Not compatible with the tailstock option.  
 

  • 6000 rpm
  • A2-5 spindle nose
  • 5.3" (135 mm) hydraulic chuck 
  • 1.3" (33 mm) spindle bore (non-through)
  • Allows fully synchronized part pass-off 
  • Built-in part ejector
  • Includes CNC Control Cabinet Cooler

 

Two-Stage Parts Catcher (optional)

Our two-stage automatic parts catcher moves completely out of the primary work envelope during machining, and quickly moves into place when commanded at the end of cycle. For parts with short cycle times, the arm can be left in the extended position, with only the tray rotating up to catch parts at the end of cycle. 

The catch tray is easily adjusted for different part-off locations, and can be positioned to catch parts from either the main spindle or optional sub-spindle.

Automatic Parts Loader (optional)

The Haas Automatic Parts Loader is a simple and affordable way to automate part production and boost productivity on Haas turning centers. It is designed and built exclusively for use on Haas turning centers, and connects directly to the Haas control. 

  • All-inclusive design, with plug-and-play capabilities to Haas ST-10 through ST-25 turning centers, including Y-axis models
  • Interfaces directly with the Haas control
  • Accommodates parts up to Ø5.8" x 5" x 10 lb (Ø147 x 127 mm x 4.5 kg)
  • Includes light curtain for safe operation
  • Made in the USA

New Tailstock Design (optional)

The new tailstock design allows setting the hydraulic pressure as low as 60 psi (4.1 bar) to minimize part deformation when machining thin parts. The Acme screw drive system provides better tailstock support during heavy roughing operations.

Capacities S.A.E METRIC
Chuck Size 8.3 in 210 mm
Max Part Swing 21.0 in 533 mm
Max Cutting Diameter (with BMT65 turret) 11.75 in 298 mm
Max Cutting Length (varies with workholding) 22.5 in 572 mm
Bar Capacity 2.50 in 64 mm
Travels S.A.E METRIC
X Axis 8.4 in 213 mm
Y Axis ± 2.0 in ± 51 mm
Z Axis 22.5 in 572 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 945 ipm 24.0 m/min
Axis Motors S.A.E METRIC
Max Thrust X 4100 lbf 18238 N
Max Thrust Y 2300 lbf 10231 N
Max Thrust Z 5100 lbf 22686 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
Positioning (±) 0.01 ° 0.01 °
Brake Clamp Force 1000 lbf 4448 N
Brake Diameter 14.4 in 366 mm
Control Type Interpolated Motion and Positioning Interpolated Motion and Positioning
Turret S.A.E METRIC
Number of Tools 12 Stations 12 Stations
OD vs ID Tools Any Combination (will vary with turret) Any Combination (will vary with turret)
Boring Bar Rear Clearance (from back of turret ) 4.00 in 102.0 mm
Live Tooling S.A.E METRIC
Max Speed 4000 rpm 4000 rpm
Tooling BMT65 BMT65
General S.A.E METRIC
Coolant Capacity 55 gal 208 L
Air Requirements S.A.E METRIC
Air Required 4 scfm @ 100 psi 113 L/min @ 6.9 bar
Inline Air Hose 3/8 in 3/8 in
Coupler (Air) 3/8 in 3/8 in
Air Pressure Min 80 psi 5.5 bar
Dimensions - Shipping S.A.E METRIC
Domestic Pallet 143 in x 90 in x 87 in 363 cm x 229 cm x 221 cm
Export Pallet 143 in x 90 in x 87 in 364 cm x 229 cm x 221 cm
Weight 10480 lb 4754.0 kg

ST-20Y Cutting Demo


Watch our ST-20Y lathe, with the BMT65 live tool turret, in action.

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.