Structure features: Automatic envelope maker Model HP-250 suitable for producing 1-6# Chinese style envelope, glasses bag, red pocket and very small paper bag such as chopstick bag, medicine bag. Air suction type reliable bottom paper extracting structure is available to supply paper constantly. Completed with air suction roller and barrier system, it is available to accomplish double fold correctly. Rotary paste supplying is suitable to convert envelopes swiftly and stick paper bags. Electronic counter may control finished products by group for easy use of package. Technical parameter: Model: HP-250 Max. working velocity: 12000pc/h Applicable paper ration: 50-157gsm Min. dimensions of an envelope: 28*50mm Max. dimensions of an envelope: 118*290mm Motor power: 1.5kw Air pump power: 3.0kw Machine weight: 800kgs Machine Size: 1800*900*1220mm