Half tray packing machine
Product Value
01
The load-bearing paper tray prevents stack collapse and offers far superior stacking stability compared to unsupported film-only packs; it is ideal for aluminum cans, heavy bottles, high-stacking in supermarkets, and palletized shipments.
02
Positioned between pure film wrapping and full corrugated cartons, it offers a balanced cost structure: material consumption is lower than that of full corrugated cartons, while protection is superior to bottomless PE film packs.
03
The transparent design ensures excellent retail visibility; the shrink film tightly secures the product grouping, allowing for direct shelf placement—making it a true "retail-ready" package.
04
Highly flexible and compatible with various grouping configurations, allowing for rapid switching between formats such as 2×3, 3×4, and 4×6.
Applicability boundaries
Products
Rigid round bottles/cans (PET, glass, aluminum, etc.); canned beverages with high centers of gravity that are prone to sliding or toppling.
Packaging Materials
PE shrink film + paper half-tray or base pad.
Application
Requires stacking, palletized shipping, and retail sales as multi-packs; aims to reduce carton costs while ensuring greater stability than bare shrink-wrap packaging.
Working Principle
Bottle grouping → Automatic pickup of paper half-trays by suction cups and placement at the bottom of the bottle group → PE film wrapping and sealing/cutting → Heating in hot-air shrink tunnel → Film and paper tray tightly wrap the bottle group; air cooling to set the shape.
Core components
Pulp tray hopper & suction-based tray feeding assembly
Automates tray pickup, feeding, and positioning; a core component unique to semi-tray models.
PE film unwinding & constant tension mechanism
Regulates film tension to prevent thinning, loosening, or breakage.
Sealing & cutting assembly with Teflon-coated blade
Performs sealing and cutting; features high-temperature resistance and non-stick properties.
Hot air shrink tunnel & circulating hot air temperature control system
Ensures uniform shrinking and forming.
Optional
01
Printed PE film registration mark tracking and static elimination device
02
Bottle organizing table, transition conveyor, and downstream palletizing interface
03
Quick-change tooling for paper trays and grouping stopper kits
Changeover/Cleaning/Maintenance
Changeover
Ensure safety via lockout/tagout; swap out guardrails, bottle-pushing blocks, and paper tray positioning jigs; load recipes via HMI and adjust pack configuration, film length, seal-cut delay, and oven temperature; perform test runs to calibrate tray centering and wrapping position, verify the absence of film tearing or bottle slippage, and save parameters.
Maintenance
Daily: Inspect vacuum cups, film tension, oven temperature, and sealing blade condition. Weekly: Lubricate conveyor chain guides; check for vacuum cup wear and inspect the Teflon coating on sealing blades. Monthly: Tighten drive components, clean dust from electrical controls, and calibrate temperature controls. Stockpile wear parts such as vacuum cups, sealing blades, Teflon sheets, and photoelectric sensors.
How do I choose between a half-tray film wrapping machine and a standard bottomless PE film wrapping machine?
Half-tray wrapping is suitable for cans, heavy bottles, products requiring pallet stacking for shipment, or packs prone to collapsing; bottomless PE film wrapping is ideal for lightweight bottles, short-distance handling, and scenarios where minimizing costs is the top priority.
How does half-tray film wrapping compare to carton packaging?
Half-tray wrapping (paper tray + PE film) offers lower costs than full carton packaging and provides product visibility; carton packaging uses fully enclosed, rigid corrugated board, offering superior impact resistance—making it ideal for long-distance export and heavy-duty protection.
What are the typical production capacity and pack configurations?
Standard models handle 10–30 packs per minute; common configurations include 2×3, 3×4, and 4×6, with custom layouts available.
Can standard corrugated pads be used instead of formed paper trays?
Yes; however, opting for a folding mechanism allows for the use of folded-edge semi-trays, which provide better stacking stability.
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