ST-28LY

   
 

For the best pricing in your area, contact your local Haas Factory Outlet.

Y-Axis CNC Lathe with 11.75" x 42.5" max capacity, A2-8 nose, and 4.0" bar capacity

The ST-28LY is a long-bed, A2-8 turning center with Y-axis and C-axis capabilities, allowing high-productivity, done-in-one machining operations. The ST-28LY provides roughly double the Z-axis travel and turning length of the standard ST-28Y for machining longer parts, while maintaining superior cutting performance, and a compact footprint. A wide selection of productivity-enhancing options and powerful standard features provides more value than ever before.

  • 12-station BMT65 turret
  • A2-8 spindle nose with 12" (305 mm) chuck
  • 40 hp (29.8 kW) vector drive spindle
  • 4.0" (102 mm) bar capacity
  • Y-axis milling, drilling, and tapping
  • Extended Z-axis travel for machining longer parts
  • Standard programmable hydraulic tailstock with #4 Morse taper
  • Extended tool pocket in the bulkhead provides clearance for long tools
  • Available Steady Rest Provision for part-face machining or supporting extra-long parts
  • 12" Chuck Size
  • 4.0" Bar Capacity
  • 3.2k RPM
  • 40 hp Power
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BUILD & PRICE
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Capacities S.A.E METRIC
Chuck Size 12.0 in 305 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) 42.5 in 1080 mm
Bar Capacity 4.00 in 102 mm
Travels S.A.E METRIC
X Axis 9.40 in 239 mm
Y Axis ± 2.0 in ± 51 mm
Z Axis 42.50 in 1080 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 A2-8 A2-8
Max Rating 40.0 hp 29.8 kW
Max Speed 3200 rpm 3200 rpm
Max Torque 425.0 ft-lbf @ 325 rpm 576.0 Nm @ 325 rpm
Spindle Bore ø 4.62 in 117.3 mm
Main Spindle C Axis S.A.E METRIC
Max Speed 60 rpm 60 rpm
Max Rating 5.0 hp 3.7 kW
Positioning (±) 0.01 ° 0.01 °
Brake Diameter 13.9 in 353 mm
Brake Holding Torque 250 ft-lbf 339 Nm
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
Electrical Specification S.A.E METRIC
Spindle Speed 3200 rpm 3200 rpm
Drive System Direct Speed, Belt Drive Direct Speed, Belt Drive
Spindle Power 40.0 hp 29.8 kW
Input AC Voltage (3 Phase) - Low 220 VAC 220 VAC
Full Load Amps (3 Phase) - Low 70 A 70 A
Input AC Voltage (3 Phase) - High* 440 VAC 440 VAC
Full Load Amps (3 Phase) - High* 35 A 35 A
Dimensions - Shipping S.A.E METRIC
Domestic Pallet 143.0 in x 90.0 in x 91.0 in 363 cm x 229 cm x 231 cm
Export Pallet 143.0 in x 90.0 in x 91.0 in 363 cm x 229 cm x 231 cm
Weight 12700 lb 5760.0 kg

NOTE: All specifications listed are for the standard machine configuration. Optional equipment may change the machine’s specifications.

*Haas machines are designed to operate on 220 VAC (200-240 VAC) power. An optional internal high-voltage transformer (380 - 480 VAC) is available for all models, except the Desktop Machines, CL-1, CM-1, and SR Series routers. This optional high-voltage internal transformer is not field installable; it must be ordered with the machine.

Haas machines destined for Europe and the UK are configured with an internal high-voltage non-isolated transformer to operate on 400 VAC, except the Desktop Machines, CL-1, CM-1, and SR Series routers. 

**Optional tool changers may have a different max tool size than the standard tool changer. Extra-large tools may require two adjacent pockets empty between tools. Click here for toolholder specifications.

ATTENTION! Optional high-performance spindles may have a higher power requirement than the standard spindle. However, if the spindle horsepower (kW) does not change, the power requirement remains the same. Verify the power requirement before running power for your machine.

† Air consumption on 40-taper DC Series machines may be higher, when Through-Tool Air Blast (TAB) is activated.

 

* Not all options are compatible with each other. Some options may require the purchase of additional options, or may include additional options at no charge. Please use our Build-&-Price tool to determine option compatibility, and configure your machine.

ANSWERS TO YOUR CONCERNS ABOUT ADDING A HAAS ROBOT: It won’t take up much space, cost a ton of money, or take weeks to integrate. 

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