Heavy Duty Multi-Function Laminated Bag Making Machine + Single Sheet Film Doypack Bag

Double unwind without lateral deviation correction (with pneumatic feeding):

The double unwind unit with pneumatic feeding system stands as a cornerstone of operational efficiency, featuring a maximum unwinding width of 1200mm to accommodate large-format laminated films. Its pneumatic feeding mechanism ensures consistent material tension control, eliminating the need for lateral deviation correction by maintaining precise alignment through air pressure regulation. This design reduces material waste by 15% compared to traditional systems while supporting film thicknesses from 0.08mm to 0.3mm. The integration of servo motor-driven unwinding ensures synchronization with the machine's maximum speed of 170pcs/min, enabling seamless material flow even during high-speed production runs. Operators benefit from quick roll changeovers, with hydraulic loading capabilities that handle rolls up to Φ800mm diameter, minimizing downtime between production batches.

Triangle folding device for bags:

The triangle folding and traction system delivers exceptional precision in forming gusseted bags, with adjustable folding angles ranging from 25° to 60° to accommodate various bag styles including stand-up pouches and side-gusseted packages. Its servo synchronization technology ensures traction speed matches the machine's 170pcs/min output, maintaining consistent bag dimensions with ±0.5mm length accuracy. The mechanism employs dual traction rollers with rubberized surfaces to prevent slippage, even when processing slippery laminated materials like PET/PE composites. This component's modular design allows tool-free changeovers between bag types, reducing setup time by 40% and supporting quick transitions from three-side seal to stand-up pouch production. The integration of photoelectric sensors further enhances precision by detecting material edges and adjusting folding parameters in real-time.

The third insert vertical bag picture:

This vertical bag inserting component achieves an impressive forming speed of 180 cycles per minute, significantly enhancing production throughput for vertical bag applications. It offers exceptional versatility with compatibility for bag widths ranging from 30mm to 120mm and handles material thicknesses from 0.08mm to 0.4mm, accommodating various packaging requirements. The precision-engineered mechanical structure ensures consistent bag formation even at maximum operating speeds.

Single membrane with insert for bottom folding:

The single membrane with insert for bottom folding system excels in producing structurally complex bags with enhanced durability, supporting material thicknesses from 0.08mm to 0.4mm to accommodate heavier product loads. Its precision folding mechanism achieves bottom folding accuracy of ±0.3mm, ensuring consistent seal integrity across production runs. The system integrates advanced composite craftsmanship for single membrane and insert structures, enabling the creation of reinforced bottom seals suitable for stand-up pouch applications. Servo synchronization technology ensures seamless integration with the machine's maximum speed of 170pcs/min, maintaining production efficiency while handling intricate folding operations. This component features quick-change tooling for different bottom styles and incorporates non-contact ultrasonic sensors for real-time monitoring of folding quality, further enhancing production reliability.

Vertical sealing part:

4 sets of vertical seals, used for sealing three sides, bottom seal of standing bag, etc. The four-group vertical sealing system provides unmatched versatility for complex bag structures, capable of forming three-side seals, stand-up pouch bottom seals, and gusseted side seals in a single pass. Each sealing group features independent temperature control (0-300°C) with PID regulation, ensuring consistent heat distribution across the 1200mm sealing width. The system's servo-driven actuators apply precise pressure (0.2-0.6MPa) to create hermetic seals with peel strengths exceeding 12N/15mm—30% higher than industry standards. Tool-less seal width adjustment (10-60mm) allows customization for different product requirements, while the inclusion of non-stick Teflon coating on sealing jaws reduces material adhesion and extends maintenance intervals. This configuration supports production of multi-compartment bags and vacuum-sealed packages, making it ideal for food, pharmaceutical, and industrial packaging applications.

Horizontal sealing part:

3 groups, cast iron type The three-group horizontal sealing unit utilizes heavy-duty cast iron construction to deliver superior heat stability and durability during continuous operation. Each sealing group maintains temperature uniformity within ±1°C across the sealing surface, ensuring consistent seal quality even at maximum production speeds. The cast iron components provide exceptional thermal mass, reducing temperature fluctuations during high-speed cycles and extending seal jaw lifespan to 800,000 cycles—twice the service life of standard steel units. This system features independent pressure adjustment (0.3-0.8MPa) and variable dwell time control (0.1-3 seconds), accommodating diverse materials from thin films to thick laminated structures. The inclusion of water-cooled sealing jaws prevents overheating during extended runs, while precision-ground sealing surfaces ensure flatness within 0.02mm/m for leak-proof seals.