The EMAG WEISS W11 is a used CNC grinding machine — sometimes referred to as a cylindrical grinder — built for precision round-part grinding operations such as external and internal diameter grinding of shafts, spindles, and similar rotational components. EMAG is a well-established German manufacturer known for producing high-precision machine tools for the automotive, aerospace, and general engineering industries. This example was manufactured in 2020 and is currently located in Germany.
The machine accommodates workpieces with a maximum grinding diameter of 390 mm and a maximum grinding length of 650 mm, with a centre height of 200 mm. It is rated to handle workpieces weighing up to 250 kg, making it suitable for medium to heavy component grinding. The grinding wheel has a diameter of 400 mm and operates across a peripheral speed range of 20 to 50 m/sec, allowing the operator to adapt the cutting conditions to the material and finish requirements.
Axis travel is provided by an X-axis of 380 mm and a Z-axis of 1,150 mm, giving substantial longitudinal range for longer workpiece passes. The workpiece spindle is steplessly variable from 1 to 650 rpm, enabling fine control over surface speed regardless of workpiece diameter. The tailstock is equipped with a Morse Taper 4 quill, with a quill diameter of 50 mm and a quill stroke of 45 mm, providing secure and precise workpiece support. Total installed power requirement for the machine is 22 kW.
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