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The Haas ST-55 is a heavy-duty, large-bore turning center that provides heavy cutting ability, extreme rigidity, and high thermal stability. The twin-chuck capability, high-torque spindle, and large through-bore of this machine make it ideal for machining heavy pipes and fittings, large couplers, and long rollers. The large-capacity ST-55 offers the best combination of performance and value in its class, and is available with a wide selection of high-productivity options.
This large industrial shaft is a perfect fit for the Haas ST-55. Heavy cuts, deep threads, wide grooves, and a belt groove are all child’s play for this mammoth machine’s extreme power and rigidity. Whether you are making parts for terrestrial or extraterrestrial use, the ST-55 is a great choice.
|Over Front Apron||34.5 in||876 mm|
|Over Cross Slide||25.5 in||648 mm|
|Over Tailstock||25.5 in||648 mm|
|Max Cutting Diameter||25.5 in||648 mm|
|Max Cutting Length (without workholding)||80 in||2032 mm|
|X Axis||17.0 in||432 mm|
|Z Axis||80.0 in||2032 mm|
|Rapids on X||710 ipm||18.0 m/min|
|Rapids on Z||320 ipm||8.1 m/min|
|Max Thrust X||5500 lbf||24465 N|
|Max Thrust Z||9000 lbf||40034 N|
|Spindle Nose||A1-20 Front & Rear||A1-20 Front & Rear|
|Max Rating||55.0 hp||41.0 kW|
|Max Speed||1000 rpm||1000 rpm|
|Max Torque||4250 ft-lbf @ 30 rpm||5762 Nm @ 30 rpm|
|Spindle Bore ø||12.50 in||318.0 mm|
|Number of Tools||12-Station BOT||12-Station BOT|
|OD vs ID Tools||Any Combination (will vary with turret)||Any Combination (will vary with turret)|
|Coolant Capacity||95 gal||360 L|
|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|
|Spindle Speed||1000 rpm||1000 rpm|
|Drive System||2-Speed Gearbox||2-Speed Gearbox|
|Spindle Power||55.0 hp||41.0 kW|
|Input AC Voltage (3 Phase) - Low||220 VAC||220 VAC|
|Full Load Amps (3 Phase) - Low||105 A||105 A|
|Input AC Voltage (3 Phase) - High||440 VAC||440 VAC|
|Full Load Amps (3 Phase) - High||53 A||53 A|
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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.
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2800 Sturgis Rd., Oxnard, CA 93030 / Toll Free: 800-331-6746
Phone: 805-278-1800 / Fax: 805-278-2255