Is Haas ST-55 Turning Center Good for Machining Long Shafts?

Haas ST-55 vs lathe machines made in Germany, which is better for long shaft machining? Haas ST-55 seems to be a preferred choice, let’s explore the advantages, working principle and machining process of this turning center.

What is Haas ST-55?

Haas ST-55 is a heavy-duty large-diameter turning center produced by Haas Automation, Inc. It has excellent cutting ability, extremely high rigidity, and thermal stability. This machine tool is particularly suitable for processing heavy-duty pipelines and fittings, large connectors, and long rollers.

Features:

• Maximum capacity: 25.5 inches x 80 inches (648 x 2032 mm) for handling large workpieces
• Main spindle bore diameter: 12.5 inches (318 mm) for machining heavy pipes, tubes, and large connecting parts
• High rigidity and thermal stability for excellent performance in heavy-cutting
• Dual spindle function for simultaneous machining of two workpieces
• High-torque main spindle for stable and efficient operation under heavy loads
• 2-speed gearbox and 55 HP vector drive for high cutting power and 1000 rpm spindle speed
• High-productivity options, including 6000 rpm high-torque live tooling
• Other configurations: a 12-station BOT turret, programmable servo tailstock, 15-inch color LCD display, USB port, and remote operation handle

Is Haas ST-55 Good for Machining Long Shafts?

Yes, the Haas ST-55 turning center or CNC lathe is well-suited for machining long shafts, its twin-chuck capability allows for the simultaneous machining of two workpieces, and a high-torque spindle provides the necessary power and stability to handle heavy cutting and machining of long shafts. The 12.5″ spindle bore provides ample clearance for machining long shafts with large diameters. Additionally, the machine’s extra-large spindle nose and spindle bore suggest that it can accommodate longer shafts, and the 2-speed gearbox and 55 hp power provide the necessary speed and torque for efficient machining.

Advantages of Haas ST-55 over German lathes

• Cost-effectiveness: Haas machines are generally known for being more affordable than German lathe machines, making them a more cost-effective option for many manufacturers.
• Ease of use: Haas machines are designed to be user-friendly and easy to operate, with intuitive controls and a simple programming language. This can make it easier to train operators and reduce downtime.
• High-speed machining: The Haas ST-55 is capable of high-speed machining, which can increase productivity and reduce cycle times.
• Large capacity: The Haas ST-55 has a large capacity, with a maximum turning diameter of 876 mm and a maximum machining length of 2032 mm, making it suitable for large and complex parts.
• Advanced features: The Haas ST-55 comes with advanced features such as a 2-speed gearbox, a fully programmable servo tailstock, and a 12-station BOT turret, which can provide more flexibility and precision in machining.
• American-made quality: Haas machines are made in the USA, which can provide a level of quality and reliability that is comparable to German lathe machines.
• A wider range of applications: The Haas ST-55 can be used for a wide range of applications, including the machining of heavy pipes, tubes, and large connecting parts, which can make it a more versatile option than some German lathe machines.
• Better customer support: Haas is known for providing excellent customer support, with a large network of dealers and service centers, which can provide faster and more convenient support than some German lathe machine manufacturers.

How Does the Haas ST-55 Work When Turning a Long Shaft?

When turning a long shaft, the Haas ST-55 turning center utilizes its powerful 41 kW main spindle to handle large cutting tasks, ensuring high precision and efficiency. The machine’s robust design features a maximum turning diameter of 876 mm and a maximum machining length of 2032 mm, enabling it to accommodate long shafts with ease. The ST-55’s advanced servo motors and high-speed rapid traverse rates of 18.0 m/min on the X-axis and 8.1 m/min on the Z-axis, allow for swift and precise movement of the cutting tools, minimizing production time and maximizing accuracy. Additionally, the machine’s intelligent control system and advanced tooling capabilities enable the ST-55 to perform a variety of complex machining operations, including rough turning, V-type groove machining, R6 circular arc machining, and thread machining, making it an ideal solution for processing long shafts with intricate geometries and demanding specifications.

Long Shaft Turning Materials, Equipment, and Parameters