Back Sealing Packaging Machine 18000mm 5.5KW Automatic Packing

The SED-450-8KDB-A is driven by full servo motors, with PLC control, stepless speed regulation, and a human-machine interface for operation. It features low noise and simple, user-friendly operation.
Powered by five sets of servo motors, each station—including vertical sealing, horizontal sealing & easy-tear notch, secondary horizontal sealing & batch number printing, dotted-line cutter, and cutting knife—is equipped with an independent servo motor. The one-time completion of multi-station processes enhances the machine’s automation level and simplifies operation.
The alignment system adopts imported Banner (a U.S. brand) components, ensuring accurate alignment with a deviation range of 0.5mm to 1mm.
Bag length can be adjusted freely: simply input the desired bag length on the touchscreen, and all stations will automatically adjust and align—no manual adjustment of mechanical parts is required. The adjustment takes less than 1 minute, saving both materials and time.
The batch number printing device is driven by an independent servo motor, synchronized with the main machine. It delivers clear batch numbers with accurate positioning and easy replacement.
The easy-tear notch blade is directly installed on the horizontal sealing mold, ensuring absolutely accurate notch positioning without the need for adjustment.
Omron intelligent temperature controllers are adopted for temperature control, with a sealing temperature setting range deviation of ±1°C. The heating tubes for vertical and horizontal sealing use a single heating system divided into three sections; section-by-section adjustment ensures more uniform temperature in each section and better sealing effect, with a deviation range of approximately ±1°C.
With servo motor transmission, cam positioning, and synchronization with the horizontal sealing mold, the machine uses triangular measuring cups for metering. The cup volume supports both individual and overall adjustment, ensuring high metering accuracy, low noise, and easy disassembly and cleaning—effectively solving the problem of fine powder leakage in the feeding mechanism.
For film edge correction (left and right), a Taiwanese optical sensor (groove-type) device is used. It is driven by an independent motor to automatically control the left-right correction of the rolled film, featuring convenient operation and high accuracy with a deviation range of 0.5mm to 1mm.
PLC control, servo motor drive, photoelectric tracking, and an automatic correction system ensure automatic alignment of double-sided printed patterns on packaging bags. When adjusting the bag length, only 2–3 bags are wasted for automatic alignment correction.
The hopper’s top cover and the hopper itself can be sealed and easily opened. The top cover is equipped with a feeding port (80mm in diameter), which can be connected to the discharge port of a vacuum feeder for automatic feeding (Note: Vacuum feeder model QVC-1).
The conveyor belt is driven by an independent motor with adjustable speed.
The equipment’s materials meet GMP requirements: all parts in contact with materials are made of 316L stainless steel; other outer cover parts are either made of 304 stainless steel or undergo surface anti-corrosion treatment.
This equipment can be modified to match an automatic production line, supporting processes including automatic feeding, bag making, material adding, batch number printing, easy-tear notch creation, punching & cutting, bag picking, arranging, single-bag weighing, defective product rejection, bag stacking, bag counting, further rejection, instruction manual folding, carton forming, carton opening, bag cartoning, batch number printing on cartons, and carton sealing.
It is suitable for packaging loose, non-sticky powdery and granular materials in industries such as pharmaceuticals, food, pesticides, and daily chemicals, including examples like small pills, white sugar, salt, cereal, seeds, and Chinese medicine granules (e.g., cold granules).