2-Side Seal Kraft Paper Envelope Machine

 ● High Speed and Efficient:Advanced automation control keeps the line running fast without slowing down production.

 ● Stable and Reliable:A solid steel frame and mechatronic design mean fewer breakdowns and consistent envelope quality.

 ● Multi-Functional Design:The machine adjusts to different envelope sizes and specs, so one setup handles multiple production needs.

 ● Bottom-Gusset Forming:Produces flat-bottom kraft envelopes that stand upright, ideal for retail and shipping packaging.

 ● In-Line Two-Color Printing:Print directly on the envelope with flexible pattern changes, removing the need for outsourced printing.

 ● Roller-Coat Gluing:Fast, even glue application with independent servo control, unaffected by envelope length.

 ● Rotary Heat-Sealing and Cutting:High-speed sealing and cutting without a moving knife carriage, saving space and reducing wear.

 ● Photoelectric Tracking:Keeps printing and cutting aligned automatically for consistent output.

● Applicable Material: Kraft paper

● Unwinding Width: ≤1200mm

● Unwinding Diameter: ≤1250mm

● Machine Speed: 60m/min

● Envelope-Making Width: ≤650mm

● Supply Voltage: 220-380V, 50HZ

● Total Power: 45KW

● Mechanical Weight: 9.8T

● Mechanical Dimensions: 11000×2200×2280mm

● Air Pressure: 6-8Kpa

Note: envelope-making speed is given here as linear material speed (m/min). A envelopes/minute output figure requires the finished envelope length, which is not included