Horizontal Lathe Excels in the High-Precision Range

With the order to build the ProfiTurn H 1750/75 horizontal lathe for Harbin Electric Machinery Co., one of the leading Chinese manufacturers of electrical machinery and equipment in the energy sector, WaldrichSiegen sets a new standard in large-part machining.

The machine processes workpieces with a diameter of 1,750 mm, a length of 12,500 mm and a total weight of 75 t. The production of the rotor and generator shafts requires that tolerances smaller than 5 μm be maintained in radial and axial runout with equally large diameters and high workpiece weights. The design and construction of the main bearings and the one-piece cast housing of the headstock ensure maximum stability and rigidity throughout the machining process. The ProfiTurn H is also equipped with hydrostatic guideways in the X and Z axes as well as hydrostatic steady rest jaws.

The ProfiTurn H is already the third machine of this type for Harbin Electric. The extremely precise machining as well as the high quality and reliability of the machines already operating in the plant have convinced Harbin Electric to once again invest in a machine from WaldrichSiegen.