Dynatron A-18. Type: Air cooling, Fan diameter: 7 cm, Rotation speed (min.): 1100 RPM, Rotation speed (max.): 6000 RPM, Minimum air pressure: 1,25 mmH2O, Maximum air pressure: 50,46 mmH2O, Bearing type: Kugellager. Width: 106 mm, Depth: 76 mm, Height: 27,5 mm. Product colour: Copper, Grey