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New Gear Grinder the Solution for Long Shaft Parts with Small Diameters

Based on its LGG 280 generating grinding machine, Liebherr recently introduced the larger LGG 400 M model.

The new Liebherr LGG 400 M was developed with an eye towards aerospace and job shop customers. It fits into the same footprint as the smaller LGG 280 but is well-suited to machining long shafts because the travel of the main and counter column has been extended.

"Our users can utilize a variety of grinding heads for internal and external gears," says Oliver Kraft, Manager Development and Design of Gear Cutting Machines at Liebherr-Verzahntechnik GmbH. "They can perform generating grinding with high productivity on workpieces up to 280 millimeter in diameter or profile grinding on even larger components up to 400 millimeters. This means even greater flexibility than its sister machine."

Ideal for Long Shafts

The machine concept came about from the requirements of the market. Long shafts with small diameters have come into demand, required by customers in the aerospace and job shop industries -- often for short runs.

Liebherr offers an optional crane for optimal handling of large parts. "We have ergonomically adapted the machines overall," Kraft explains. "Due to the height, we have incorporated fold-out stair steps so workers are better able to reach the working area. Large viewing windows provide the operator with the best possible overview of the working area and the process."

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