Jining Xinhong Industrial and Mining Machinery Equipment Co., Ltd

The back bolt punch is a small device used for back bolt curtain wall hole expansion. It is suitable for marble, granite, ceramic panels, honeycomb panels, high-density cement panels, various types of artificial fiber panels, etc. The back bolt punch uses an air pump combined with a vacuum conversion valve to fix the processing hole position. Through the successive actions of the two handles for drilling and expanding holes, a stepped back bolt hole with a larger inside and a smaller outside is drilled. Technical parameters: Voltage: 220V Power: 1400W Drilling depth: 5-20mm (extended version 50mm) Drilling diameter: 7.2mm, 9mm, 11mm, 13mm