Description Overview Semi automatic Product: mainbody Function: can punch hole and fixing breathing valve by one machine (2 job in 1 machine) Specifications Hole inner diameter: 26.8 mm Power: 5 kW Production capacity: 40 pcs/min Voltage: 220 volts and 50/60 Hz Size: 520 x 400 x 320 mm Gross weight: 30 kg Packaging Package rate: export wooden packing