Product Overview
The Junyao JY-L600S is a dual-lane automatic flow packing machine engineered for biscuit and cookie manufacturers who need to double their per-machine output without doubling their floor-space investment. Designed and manufactured at Xingjunyao Intelligent Packaging Technology's 13,000 m² facility in Taizhou, Zhejiang, the JY-L600S operates two independent packaging lanes within a single machine frame, each capable of producing 50 to 150 packages per minute for a combined throughput of 100 to 300 packages per minute. The dual-lane architecture is not merely two machines bolted together — it is a genuinely integrated system where both lanes share a common PLC controller, a single HMI touch-screen interface, a unified film supply system with automatic splicing, and a synchronized cross-seal mechanism that seals both lanes' bags in a single mechanical cycle. This integrated design reduces the machine's footprint compared to two standalone wrappers by approximately 35 percent, saves approximately 40 percent on electrical power consumption compared to running two independent machines, and eliminates the synchronization complexity that operators face when trying to match the output of two separate machines feeding a common downstream carton-packing station.
Since Xingjunyao's founding in 2014, the company has deployed packaging equipment to more than 25 countries, and the JY-L600S reflects the specific requirements identified through this global experience. Bakeries in emerging markets often operate in compact factory buildings where floor space is a limiting factor, and the dual-lane concept directly addresses this constraint by packaging two product rows simultaneously in the width that a single-lane machine would occupy for one row. The machine's total power consumption of 12.5 KW — shared between both lanes — is comparable to running a single high-speed wrapper, yet it delivers double the output. For biscuit manufacturers who produce both single-serve packs (one biscuit per bag) and multi-serve packs (two biscuits side-by-side per bag), the JY-L600S offers a unique single/double packaging mode switching capability that allows the operator to change between single-lane single-pack mode and dual-lane double-pack mode through the HMI without mechanical reconfiguration, a feature that eliminates the 30-to-45-minute changeover time that conventional machines require when switching between pack formats.
Key Features
1. Dual-Lane Simultaneous Packaging with Independent Lane Control
The JY-L600S houses two parallel packaging lanes — Lane A (left) and Lane B (right) — within a single machine frame. Each lane has its own infeed conveyor, forming collar, longitudinal seal roller, and product alignment mechanism, but both lanes share the cross-seal cutting unit, which uses an extended rotary seal knife that spans the full width of both lanes to seal and cut both bags in a single rotation cycle. This shared cross-seal design is the key engineering innovation that makes the JY-L600S more than two machines side by side: it ensures that both lanes produce bags with identical seal timing and seal quality, eliminating the speed-mismatch problems that arise when two independent machines feed the same downstream collector. The PLC controller manages both lanes through independent servo subroutines that can run at different speeds when the production requirement changes — for example, Lane A at 100 ppm for a premium product while Lane B at 150 ppm for an economy product — and the HMI displays real-time production data for each lane separately, including bag count, registration accuracy, and seal temperature, giving the operator full visibility into both lanes' performance without switching screens.
2. Single/Double Packaging Mode Switching via HMI
Many biscuit manufacturers produce both single-serve and multi-serve pack formats on the same production line, and the changeover between these formats on conventional single-lane machines requires manual adjustment of the infeed conveyor width, the forming collar aperture, the film width, and the cross-seal timing — a process that takes 30 to 45 minutes and generates several hundred reject bags during the tuning period. The JY-L600S eliminates this changeover delay with a programmable single/double packaging mode switching system. In single-pack mode, both lanes operate independently, each wrapping one biscuit per bag at the set speed. In double-pack mode, the PLC commands the Lane B infeed servo to synchronize with Lane A, spacing the biscuits on both lanes so that two biscuits (one from each lane) enter a single wider forming collar that produces one double-width bag containing two side-by-side biscuits. The transition between modes is executed entirely through the HMI: the operator selects the desired mode, and the PLC automatically adjusts servo speeds, infeed spacing, forming collar selection (the machine carries both single-width and double-width collars on a quick-change bracket), and cross-seal parameters. Mode changeover completes in under 3 minutes with fewer than 10 reject bags, compared to the 30-plus minutes and hundreds of rejects on conventional machines. This rapid switching capability enables manufacturers to schedule short production runs of multi-serve packs between longer runs of single-serve packs without significant efficiency loss, expanding the range of pack formats that a single machine can economically produce.
3. Multi-Zone Sealing Temperature Control
Biscuit and cookie packaging involves a broader range of film structures than most snack categories, and the sealing requirements for each film type differ significantly. Economy biscuit packs using single-layer polypropylene (PP) film seal at 130 to 150 degrees Celsius with light pressure, while premium biscuit products using three-layer barrier laminates (OPP/PET/PE) require 160 to 190 degrees Celsius with heavier pressure to achieve full melt penetration through the laminate layers. The JY-L600S addresses this diversity with a multi-zone sealing temperature control system that divides both the longitudinal seal roller and the cross-seal knife into three independently controlled heating zones — left zone (Lane A seal area), centre zone (overlap area in double-pack mode), and right zone (Lane B seal area). Each zone has its own temperature sensor, PID controller, and heating element, allowing the operator to set different temperatures for each zone when running different film types on each lane, or to set uniform temperatures across all zones when both lanes use the same film. In double-pack mode, the centre zone temperature can be increased by 10 to 15 degrees Celsius above the side zones to compensate for the increased film thickness at the double-width bag's centre seal, ensuring uniform seal strength across the full bag width without overheating the thinner side seals. The PID controllers maintain each zone's temperature within plus or minus 2 degrees Celsius of the set value, preventing the temperature drift that degrades seal quality on conventional single-zone sealers during extended production runs.
4. High-Speed Automatic Film Splicing System
The dual-lane architecture of the JY-L600S means that film consumption is approximately double that of a single-lane machine, and each film roll depletes in roughly half the time it would last on a comparable single-lane wrapper. This higher film consumption rate makes non-stop film change even more critical: a 3-minute manual film change on a dual-lane machine producing 200 combined ppm would waste 600 bags of output per change. The JY-L600S integrates an automatic film splicing system that carries two full film rolls on parallel drum shafts, with a proximity sensor monitoring the primary roll's diameter. When the primary roll diameter drops below the programmed threshold (default 80 mm, adjustable), the PLC triggers an automatic splice sequence: the secondary roll servo accelerates to match the primary roll's surface speed, a thermal splice bar bonds the trailing edge of the primary roll to the leading edge of the secondary roll, and the depleted primary roll core is ejected onto a collection rack. The entire splice cycle completes in under 2 seconds without any production interruption. For customers running different film types on each lane, the JY-L600S can be configured with two independent dual-roll film supply systems — one for Lane A and one for Lane B — each with its own auto-splice mechanism, allowing non-stop film changes on both lanes simultaneously even when the film rolls deplete at different times.
5. Photoelectric Tracking with Per-Lane Registration Control
Both packaging lanes of the JY-L600S use pre-printed film with brand logos and product information that must align precisely with the sealed pillow pouch. The machine integrates two independent photoelectric registration sensors — one for each lane — that read the longitudinal cut-position marks on each lane's film web. Because the two lanes may run at different speeds in independent mode, each sensor communicates with its own servo subroutine, adjusting its lane's film feed independently without cross-interference. In double-pack mode, both sensors synchronize to the same registration mark on the single wider film web, and the PLC ensures that the wider bag's registration position aligns both lane logos within the visible front panel area. The sensors support positive, negative, and contrast-differential detection modes, enabling reliable registration on transparent, metallic, and matte film surfaces. Registration accuracy is maintained within plus or minus 0.5 mm at speeds up to 150 ppm per lane, and when deviation exceeds the programmed alarm threshold, the machine triggers a lane-specific alert on the HMI and automatically reduces the affected lane's speed by 30 percent, preserving the unaffected lane's full-speed operation while the operator corrects the registration issue.
6. Stainless-Steel Hygienic Construction and CE Compliance
Biscuit and cookie packaging environments generate flour dust that accumulates on machine surfaces, and the dual-lane architecture of the JY-L600S adds a second set of product-contact surfaces that must be cleaned between production runs. The machine frame is constructed from SUS304 stainless steel with all exposed surfaces polished to a Ra 0.8 micro-metre finish, preventing flour dust adhesion and enabling rapid wipe-down cleaning. Product-contact components — the infeed conveyor belts, the forming collar inner surfaces, and the alignment guide rails on both lanes — use food-grade materials certified under EU Regulation 1935/2004. The dual-lane design includes dedicated cleaning access panels on both sides of the machine, allowing operators to clean Lane A while Lane B continues running, a feature that reduces cleaning downtime during multi-product daily schedules where different biscuit types are run sequentially. The electrical enclosure meets IP54 protection standards, and safety interlocks on the cross-seal housing and both lane film drum areas comply with ISO 13849 Category B requirements, halting all machine motion within 0.5 seconds when an access panel is opened. These design features enable the JY-L600S to pass CE conformity assessment without modification.
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