High Speed Bag Making Machine Specially for Central 8 Bottom Sealing Bag

Pneumatic expansion part:

The pneumatic expansion part supports a maximum roll diameter of Φ800mm, enabling efficient handling of large-volume raw materials. Its advanced air shaft design ensures uniform tension distribution across the film width, minimizing material waste by 15% compared to traditional systems. The automatic pressure adjustment feature adapts to different film thicknesses (0.08-0.3mm), maintaining consistent unwinding speed even as roll diameter decreases. This component’s quick-change mechanism reduces roll replacement time to under 3 minutes, significantly boosting overall line efficiency.

Central/4 side seal molding unit:

Equipped with dual servo drives, this unit achieves precise synchronization between sealing and film feeding, resulting in a sealing accuracy of ±0.1mm. The independent temperature control for each sealing jaw (range: 80-250°C) ensures optimal bonding for various laminates, including PE, PET, and aluminum foil composites. Its modular design allows seamless switching between central sealing and 4-side sealing modes within 10 minutes, supporting production flexibility for both stand-up pouches and flat bags. The unit’s robust construction handles speeds up to 180 bags per minute without compromising seal integrity.

Side gusset section:

The side gusset section features adjustable folding plates that accommodate gusset depths from 25mm to 60mm, enabling the production of expandable bottom bags with precise symmetry. Its servo-driven folding mechanism ensures consistent gusset formation even at maximum line speeds, reducing gusset-related defects by 90%. The section integrates non-contact ultrasonic sensors to detect film misalignment, triggering real-time corrections to maintain product uniformity. This component is critical for creating stable, upright bag structures suitable for liquid and granular products.

Central sealing strip:

Designed with a precision-machined heating element, the central sealing strip delivers uniform pressure (0.3-0.7MPa) and temperature control (±1°C), ensuring hermetic seals for high-barrier films. Its narrow sealing width (5-15mm) minimizes material usage while achieving a seal strength of ≥30N/15mm, exceeding industry standards for leak resistance. The strip’s quick-change tooling system allows operators to switch between different seal widths in under 5 minutes, supporting small-batch production runs efficiently.

Ultrasonic zipper pressing:

Operating at 30kHz frequency, the ultrasonic zipper pressing unit ensures strong, consistent zipper bonding without thermal damage to sensitive materials. Its non-contact energy transfer reduces processing time by 40% compared to hot-press methods, while the adjustable amplitude (20-50μm) accommodates various zipper profiles and film thicknesses. The unit’s integrated pressure feedback system maintains optimal clamping force (50-200N), resulting in a zipper pull force of ≥25N, ensuring reliable reclosability for consumer convenience.

Trimmed film collector:

With a maximum speed of 150m/min, the trimmed film collector efficiently removes waste edges, supporting high-speed production without bottlenecks. Its vacuum-assisted winding system compacts trim into dense rolls, reducing disposal volume by 60% and lowering waste management costs. The collector’s tension control system prevents film breakage during high-speed operation, while its automatic trim detection feature halts the line if jams occur, protecting downstream equipment.

Handle punch with bracket:

This component integrates a precision punch tool with a sturdy bracket, enabling clean, consistent handle holes in various shapes (round, oval, rectangular) with diameters ranging from 16mm to 30mm. The servo-driven positioning system ensures hole placement accuracy of ±0.5mm relative to bag edges, critical for alignment in automated packaging lines. Its quick-change die design allows tool swaps in 2 minutes, supporting custom handle configurations for retail-ready packaging.

Photovoltaic Cells for Data Management in Italy:

This solar-powered data management system reduces installation costs by 40% compared to traditional wired systems, eliminating the need for extensive cabling infrastructure. The wireless communication protocol ensures data transmission latency of ≤200ms, providing real-time monitoring capabilities essential for process optimization. The self-sustaining power design reduces dependency on grid electricity, offering significant energy savings over conventional monitoring solutions.

Cutting and collecting tables:

The cutting and collecting tables feature a high-speed rotary cutter with a cutting accuracy of ±0.1mm, ensuring clean, burr-free edges for 8-bottom sealed bags. The tables’ servo-driven conveyor system with adjustable speed (synchronized to line speed) gently transports finished bags to the collection area, reducing product damage by 80%. An integrated counting sensor with batch sorting capability automatically separates bags into user-defined quantities, eliminating manual sorting and reducing labor costs by 30%. The tables’ modular design allows integration with downstream packaging equipment such as case packers and palletizers.