The battery-powered "stone magnet" SV 250 A provides the operator with a simple and gentle working environment. When the vacuum level is sufficient, the vacuum pump shuts off automatically, which reduces battery consumption and allows the battery to last up to one working day. The operator can quickly and easily attach the unit to any carrier vehicle using the standard eyebolt. You can easily replace the suction plates for different sizes and weights of plates. The standard delivery includes a manometer, so that the operator can always check the vacuum level.