Starrag Dörries VT 28: A Game-Changer in Heavy-Duty Machine Tools

Unmanned machining Starrag introduce new Dorries VT28 vertical turning centre

2024-10-21 Source: Starrag 1 min Reading Time

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The Starrag Dörries product line is known for its contributions to the heavy-duty machine tool sector. The latest addition to this range is the Dörries VT 28 vertical turning centre, designed for one-hit machining of large components in industries such as aerospace, power generation, and offshore.

The Starrag Dörries VT 28 can accomodate a robotic tooling solution to extend unmanned machining and flexibility.(Source: Starrag) — The Starrag Dörries VT 28 can accomodate a robotic tooling solution to extend unmanned machining and flexibility.
(Source: Starrag)

The Dörries VT 28 integrates technology from the established Dörries Contumat VCE series while introducing new solutions to improve machining performance and productivity. It is capable of handling components weighing up to 17 tonnes, with a maximum diameter of 2.8 meters and a height of 2.65 meters. The machine is versatile, supporting turning, drilling, boring, milling, grinding, and other machining operations in a single setup.

The machine’s single-column design optimises static and dynamic rigidity while minimising foundation costs through its cast-above-ground column base. This contributes to increased stability and performance while reducing the overall footprint. The VT 28 provides a swing diameter of 2.8 meters and a table diameter of 2.5 meters, offering users the ability to machine large components. Its main drive delivers 98 kW of power and a torque of 11 kNm, with a speed range of 250 U/min, allowing for efficient cutting at high machining parameters.

Gallery

Starrag Dorries VT 28 with automated tooling(Source: Starrag)

The new Starrag Dorries VT28 vertical turning centre(Source: Starrag)

The VT 28's hydrostatic guides in all linear axes further enhance stability and precision by providing wear-free operation and effective vibration damping. The system is designed to maintain precision, even with temperature variations and changes in viscosity.

The machine also offers flexibility through a master head concept, which allows for the de-coupling of the milling drive and tool interface to prevent collisions. The VT 28 can accommodate various spindle configurations and grinding operations. Its ergonomic design ensures easy access for operators and maintenance personnel, and the machine can support automated tool handling through robotic systems. Additionally, the machine is equipped with a 350-bar high-pressure coolant system to aid in chip management and tool life extension.

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