ST-55

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.

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Front and rear spindle noses (dual-chuck capability)
Extra-large spindle nose and spindle bore
2-speed gearbox
Fully programmable servo tailstock
Made in the USA

Swing Diameter

Over Front Apron

: 876 mm

Over Cross Slide

: 648 mm

Over Tailstock

: 648 mm

Capacities

Max Cutting Diameter

: 648 mm

Max Cutting Length (varies with workholding)

: 2032 mm

Travels

X Axis

: 432 mm

Z Axis

: 2032 mm

Feedrates

Rapids on X

: 18.0 m/min

Rapids on Z

: 8.1 m/min

Axis Motors

Max Thrust X

: 24465 N

Max Thrust Z

: 40034 N

Spindle

Spindle Nose

: A1-20 Front & Rear

Max Rating

: 41.0 kW

Max Speed

: 1000 rpm

Max Torque

: 5762.0 Nm @ 30 rpm

Spindle Bore ø

: 318.0 mm

Turret

Number of Tools

: 12-Station BOT

OD vs ID Tools

: Any Combination (will vary with turret)

General

Coolant Capacity

: 360 L

Air Requirements

Air Required

: 113 L/min @ 6.9 bar

Inline Air Hose

: 3/8 in

Coupler (Air)

: 3/8 in

Air Pressure Min

: 5.5 bar

Electrical Specification

Spindle Speed

: 1000 rpm

Drive System

: 2-Speed Gearbox

Spindle Power

: 41.0 kW

Input AC Voltage (3 Phase) - Low

: 220 VAC

Full Load Amps (3 Phase) - Low

: 105 A

Input AC Voltage (3 Phase) - High*

: 440 VAC

Full Load Amps (3 Phase) - High*

: 53 A

Dimensions - Shipping

Domestic Pallet

: 646 cm x 242 cm x 267 cm

Export Pallet

: 633 cm x 229 cm x 254 cm

Weight

: 14062.0 kg