stretch hood packaging machine

The Stretch Hood Packaging Machine is a professional automatic pallet packaging and film covering equipment tailored for dry mortar production lines. It is specially used for integral film wrapping and sealing of stacked palletized mortar bags, including tile adhesive, putty powder, waterproof mortar and other bagged building material products. Different from traditional winding wrapping machines, this equipment adopts integral stretch hooding technology to complete full-surround sealing, dustproof, moisture-proof and anti-loose packaging for pallet goods in one process. It realizes fully automatic unmanned packaging, perfectly matching the automatic batching, mixing and bagging process of dry mortar production lines, greatly improving finished product packaging grade, storage safety and logistics turnover efficiency.

• Full Surround Sealing & All-Weather Protection
• The integral stretch film hood covers the top and four sides of the pallet load completely, forming a fully sealed protective layer. It effectively isolates dust, moisture, rain and sunlight, solves the problems of mortar bag damp hardening, surface dust accumulation and bag slipping during outdoor storage and long-distance transportation, and ensures stable quality of packaged products.
• High-Speed Automatic Packaging & Labor Saving
• Support automatic film feeding, stretching, hooding, heat sealing and film cutting, with no manual intervention in the whole process. The packaging speed is far higher than traditional manual wrapping and rotary winding equipment, which can fully match the continuous output speed of automatic mortar production lines and greatly reduce labor and packaging cost.
• Superior Load Stability & No Deformation
• Adopts precise constant-tension stretch technology. The pre-stretched film fits tightly with the stacked goods without excessive extrusion or loose wrapping. It firmly fixes the layered mortar bags, effectively preventing layer displacement, bag collapse and cargo scattering during stacking, lifting and transportation.
• Low Film Consumption & Cost-Effective
• Compared with traditional winding packaging, stretch hood technology uses thinner high-toughness stretch film with less material consumption. The one-piece hooding process avoids repeated overlapping wrapping, significantly reducing annual packaging material costs for mortar factories while maintaining packaging strength.
• High Transparency & Convenient Inspection
• The supporting stretch film features high light transmittance and low haze. Product labels, batch numbers and production information on the mortar bags can be clearly identified without unpacking, which is convenient for factory inventory management, quality inspection and customer acceptance.
• Strong Compatibility & Intelligent Adaptation
• It adapts to pallets of different conventional sizes and different stacking heights of 25kg/50kg mortar bags. The system can automatically identify load height and adjust stretching parameters, supporting flexible switching of multiple production specifications.
• Modular Structure & Easy Integration
• Compact and modular design with small floor area. It can be seamlessly connected with automatic bagging machines, palletizing robots and conveyor lines to form a fully automatic closed-loop production and packaging system, suitable for new line installation and old line upgrading.
• Stable Operation & Low Maintenance
• Optimized mechanical transmission and precise electrical control system, with stable high-speed operation and low failure rate. Vulnerable parts are few and easy to replace, reducing daily maintenance workload and long-term operating costs.

• Complete pre-operation inspection before startup: check the tightness of mechanical parts, the integrity of film feeding mechanism, the stability of servo system and the normal heating state of the sealing cutter to ensure no abnormality.
• Perform 3–5 minutes of no-load trial operation first to test the coordination of film feeding, stretching, hooding and cutting actions; formal packaging can only be carried out after stable operation.
• Ensure the pallet stacking is neat and stable without serious inclination or overhang, so as to avoid film breaking, packaging deviation or equipment jamming during hooding.
• Prohibit placing hard foreign matters on the surface of stacked goods to prevent scratching and piercing the stretch film and affecting packaging tightness.
• Do not arbitrarily modify system parameters such as stretching tension, hooding speed and sealing temperature during operation, to avoid packaging failure or equipment overload operation.
• Regularly clean dust and debris on the film roller, cutter and sensor probe to ensure sensitive detection and smooth film feeding.
• Regularly lubricate transmission bearings and moving parts, and check the wear of sealing and cutting components; replace vulnerable parts in time to ensure packaging quality.
• Stop feeding and finish the last packaging action before shutdown, and cut off the power supply after all mechanisms reset to the initial position.
• Completely cut off the power supply during equipment maintenance, film replacement and fault handling. It is forbidden to open the protective cover or touch moving parts during operation.
• Keep the workshop dry and clean, avoid dust accumulation affecting electrical and sensing components, and ensure long-term stable linkage operation of the equipment.

• Automatic pallet packaging for full-automatic and semi-automatic dry mortar production lines
• Sealed packaging of bagged ordinary mortar, waterproof mortar, thermal insulation mortar and anti-cracking mortar
• Finishing packaging of building decoration materials such as tile adhesive, wall putty powder and caulking agent
• Moisture-proof and dust-proof packaging for finished mortar products in outdoor storage and cross-regional transportation
• Intelligent upgrading of manual packaging stations in traditional mortar factories to realize unmanned packaging operation
• Standardized finished product packaging for large-scale, standardized and export-oriented building material production enterprises

• Q1: What is the difference between stretch hood packaging and traditional winding packaging?

  A1: Traditional winding packaging only wraps the sides with poor top sealing effect. The stretch hood machine adopts integral one-piece hooding to realize full-surround sealing of top and four sides. It features better dustproof and moisture-proof performance, firmer load fixing, lower film consumption and higher packaging efficiency, which is more suitable for long-term storage and long-distance transportation of dry mortar.

• Q2: Can the equipment adapt to different pallet sizes and stacking heights?

  Yes. The equipment supports flexible adjustment of packaging range, compatible with common standard pallets and different stacking heights of 25kg/50kg mortar bags. It can automatically sense the load height and adjust parameters to meet diversified production needs.

• Q3: Will the stretch film break or loose after packaging?

  Equipped with constant-tension pre-stretching technology and matched with special high-toughness building material stretch film, the film has strong tensile and tear resistance. It fits tightly with the goods without looseness, and the sealed edge is firm, effectively avoiding film breaking and package loosening during handling and stacking.

• Q4: Is the packaging speed enough to match the automatic mortar production line?

  The maximum packaging capacity reaches 60–70 pallets per hour, which fully meets the packaging efficiency demand of medium and large automatic dry mortar production lines. It can realize synchronous linkage with upstream palletizing and bagging equipment to ensure continuous and efficient production.

• Q5: Can the packaged products be stored outdoors for a long time?

  Yes. The fully sealed stretch film layer can effectively resist dust, rain, moisture and ultraviolet rays, prevent mortar bag damp hardening and surface pollution, and greatly improve the outdoor storage cycle and product qualification rate.

• Q6: Is daily maintenance complicated?

  The equipment has a mature modular structure with few vulnerable parts. Daily maintenance only includes cleaning dust, checking film feeding system and lubricating moving parts, with low maintenance cost and simple operation.

• Q7: Can it be connected with existing palletizers and conveyor lines?

  Absolutely. It adopts standardized interface and intelligent linkage control, which can be seamlessly docked with various automatic palletizing equipment and conveying systems, facilitating the transformation and upgrading of old production lines.