JOTES SPD 30B surface grinding machine

JOTES SPD 30B surface grinding machine was built in 1978 in Poland by PONAR-JOTES Łódź. The machine, designed for precision grinding of workpieces, is an excellent choice for professional production applications. Workpieces placed on a large magnetic plate or directly on the work table are machined by means of a spindle with a grinding wheel which moves transversely and vertically. The grinding wheel, driven by an electric motor, reaches a maximum speed of 26 m/s.

The work table, on the other hand, is hydraulically driven and allows stepless adjustment of the feed rate in a range of 2 to 30 m/min. Changing the table’s travel direction is done automatically using stops or manually by switching the appropriate lever. The SPD 30B magnetic surface grinding machine weighs 5000 kg.

Technical specifications of the JOTES SPD 30B grinding machine

• work table surface (L x W): 1000 x 300 mm
• work table feed rate: 2-30 m/min
• minimum work table stroke: 200 mm
• maximum distance from the spindle axis to the work table surface: 575 mm
• minimum distance from the spindle axis to the work table surface: 125 mm
• grinding wheel dimensions (diameter x width): 350 x 63 mm
• grinding wheel manual feed per 1 wheel rotation: 8 mm
• grinding wheel stroke adjustment range: 3-30 mm
• maximum vertical feed of the grinding wheel (Y-axis): 450 mm
• maximum transverse feed of the grinding wheel (Z-axis): 370 mm
• grinding wheel feed rate: 0,5-4,5 m/min
• vertical rapid traverse of the grinding wheel (Y-axis): 0.6 m/min
• grinding wheel rotational speed: 26 m/s
• power: 15 kW
• power supply: 380 V
• dimensions (L x W x H): 4000 x 2080 x 2260 mm
• weight of the JOTES SPD 30B machine: 5000 kg