USED HAAS ST55 – 2023

The 2023 HAAS ST55 is one of the largest and most powerful CNC turning centers in the Haas ST Series, engineered for manufacturers that routinely machine oversized components, heavy workpieces, and difficult materials. Designed to deliver exceptional torque, rigidity, and production reliability, the ST55 is a preferred solution for industries requiring large-part machining capability without sacrificing precision or repeatability.

Built on a massive slant-bed cast iron platform, the ST55 provides outstanding structural stability during demanding machining operations. The machine’s heavy-duty construction minimizes vibration and maintains accuracy during aggressive roughing cuts, making it particularly effective for machining large steel, alloy, cast iron, and specialty metal components. Its substantial machining envelope allows manufacturers to process larger parts that would exceed the capacity of many conventional CNC lathes.

The 2023 model features the Haas Next Generation Control, providing faster processing speeds, advanced graphics, expanded memory, wireless networking, remote monitoring capabilities, and enhanced machine connectivity. These modern control features help reduce setup times, improve workflow efficiency, and support integration into connected manufacturing environments.

The ST55 is capable of machining carbon steel, stainless steel, alloy steel, titanium, Inconel, cast iron, brass, bronze, aluminum, and numerous specialty materials. Its high-torque gearbox-driven spindle is specifically designed for heavy material removal applications while still maintaining excellent surface finish quality during finishing operations.

Many used 2023 ST55 machines are equipped with valuable options including programmable hydraulic tailstocks, steady rests, chip conveyors, high-pressure coolant systems, bar feeders, automatic doors, and automation interfaces. These features help maximize machine productivity and support unattended manufacturing operations.

For manufacturers seeking a modern large-capacity CNC turning center with exceptional power and proven reliability, the 2023 HAAS ST55 remains one of the most capable turning machines available in today’s used CNC marketplace.

HAAS ST55 – MACHINE OVERVIEW

HAAS ST55 – CAPACITY

HAAS ST55 – SPINDLE SPECIFICATIONS

HAAS ST55 – AXIS TRAVELS

HAAS ST55 – TURRET SPECIFICATIONS

HAAS ST55 – TAILSTOCK FEATURES

HAAS ST55 – CONTROL FEATURES

HAAS ST55 – COOLANT & CHIP MANAGEMENT

HAAS ST55 – MACHINE DIMENSIONS

HAAS ST55 – GENERAL INFORMATION

INDUSTRIES THAT USE THE HAAS ST55

The HAAS ST55 is extensively used throughout the oil and gas industry for machining large valve bodies, pump shafts, pressure-control equipment, drilling system components, couplings, and heavy-duty fluid handling equipment. Its long-bed configuration and high-torque spindle make it particularly effective for energy-sector manufacturing applications.

Power generation manufacturers utilize the ST55 for producing turbine shafts, generator components, bearing housings, couplings, and large rotating equipment parts. The machine’s rigidity and extended Z-axis travel support efficient machining of long, heavy workpieces.

Mining and heavy equipment manufacturers frequently rely on the ST55 for machining rollers, shafts, hubs, axle components, structural machine parts, and large mechanical assemblies. The machine’s substantial turning envelope provides the flexibility needed for oversized components.

Additional industries include aerospace manufacturing, transportation equipment production, marine manufacturing, agricultural equipment manufacturing, defense contracting, and industrial machinery production. The ST55’s versatility makes it valuable across numerous heavy-manufacturing sectors.

COMMON PARTS PRODUCED ON THE ST55

WHY CHOOSE THE HAAS ST55?

One of the greatest advantages of the HAAS ST55 is its ability to machine long and heavy workpieces efficiently while maintaining excellent accuracy. The machine’s extended Z-axis travel and robust construction allow manufacturers to process larger components that would otherwise require specialized equipment.

The gearbox-driven spindle delivers exceptional low-end torque, making the ST55 highly effective for heavy roughing operations in steel, cast iron, and alloy materials. This capability allows manufacturers to maximize material removal rates while maintaining process stability.

Another significant benefit is the Haas Next Generation Control. Operators gain access to advanced networking capabilities, remote monitoring tools, simplified programming, and improved machine diagnostics. These features help increase productivity and reduce downtime.

The machine also benefits from Haas Automation’s extensive support network, strong parts availability, and widespread operator familiarity. These factors contribute to lower ownership costs and improved long-term reliability.

For manufacturers that routinely machine large components, the ST55 offers an outstanding combination of capacity, power, and production efficiency.

WHY BUY A USED 2023 HAAS ST55?

Purchasing a used 2023 HAAS ST55 allows manufacturers to acquire modern heavy-duty turning technology at a substantial savings compared to purchasing a new machine. Buyers gain access to advanced control technology, large-part machining capability, and modern manufacturing features while preserving capital for tooling and operational growth.

Many used ST55 machines include valuable options such as chip conveyors, hydraulic tailstocks, steady rests, tooling packages, automation interfaces, and high-pressure coolant systems. These additions can significantly increase machine capability and reduce future investment requirements.

Because the machine is relatively new, buyers benefit from modern technology, excellent parts availability, strong manufacturer support, and long remaining service life. These advantages help maximize machine uptime and ownership value.

For businesses expanding large-part machining capacity, the 2023 ST55 represents an excellent investment opportunity.

HOW MUCH DOES A USED HAAS ST55 COST?

The value of a used 2023 HAAS ST55 depends on spindle hours, machine condition, maintenance history, tooling packages, installed options, and current market demand. Machines equipped with steady rests, chip conveyors, hydraulic tailstocks, high-pressure coolant systems, automation packages, and tooling inventories typically command higher resale values.

The condition of major machine components such as the spindle, turret, guideways, lubrication systems, hydraulic systems, coolant systems, and control electronics can significantly influence pricing. Buyers generally place additional value on machines with documented maintenance records and evidence of routine preventive maintenance.

Most used 2023 HAAS ST55 machines typically sell between $150,000 and $300,000, depending on machine condition, configuration, installed options, included tooling, and overall market demand.

Before purchasing, buyers should inspect spindle performance, turret indexing accuracy, axis condition, tailstock operation, coolant systems, maintenance records, and overall machine condition. A properly maintained ST55 can continue delivering many years of productive machining service while providing the power, capacity, and reliability that have made the Haas ST Series one of the most respected CNC turning platforms in modern manufacturing.