Manual vacuum lifter uses battery as power supply. There is no external power supply, so it is safe and reliable and can be operated easily. This device can be used by different ways from changing the sucker’s positions and numbers to taking different sizes of glasses. The vacuum is produced by the vacuum pump when sucking the glass. Manual tilting and is required. There is digital meter to show the power. Please charge the machine once the power is low to ensure the safety. This device can be widely used in glass factory.