ZSYAN SY-L2L240DL Dual-Track Liquid & Sauce Piston Filling Machine
1. Quick Answer & Overview
Overview & Quick Answer: The ZSYAN SY-L2L240DL double-lane liquid packaging machine is an automated multi-channel form-fill-seal system engineered for high-throughput portion pouch packaging of viscous pastes, sauces, condiments, and liquid cosmetics. Operating at 40 to 75 bags per minute across a 5ml to 50ml dosing capacity, the machine utilizes dual precision pneumatic piston pumps featuring anti-drip blowback shutoff nozzles and heated product hopper circulation. Fabricated in complete AISI 316 product-contact and AISI 304 frame stainless steel with Omron PLC control, the mechanical seal clamps prevent liquid droplets from contaminating horizontal heat seals, maintaining zero leakage across sachets. Consuming 3.2 kW under 0.6 MPa air supply, it replaces three manual liquid fillers and delivers full capital payback within 2.6 to 3.7 operational months in commercial liquid packaging plants.
2. System Architecture & Workflow
The engineering flow diagram below maps the continuous sequence of automated operations—from infeed metering to final hermetic discharge:
[Heated Jacketed Stainless Liquid Hopper (40L) with Scraper]
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[Dual Rotary 3-Way Sanitary Valves with Pneumatic Actuation]
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[Twin Synchronous High-Precision Honed Piston Dosing Cylinders]
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[Dual Film Web Unwinders with Automatic Edge Tracking]
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[Twin Forming Tubes & Longitudinal Continuous Heat Sealers]
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[Anti-Drip Pneumatic Blowback Shutoff Liquid Injection Nozzles]
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[Air-Purge Deflation Clamps & Transverse Dual Heat Seal Jaws]
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[Serrated Tear-Notch Guillotine Cutter & Dual Discharge Chute]
Liquid and paste packaging presents the severe hazard of seal contamination: if even a microscopic droplet of viscous sauce splashes onto the film margins prior to heat sealing, the seal develops capillary channels that cause leaking during transport. The SY-L2L240DL eliminates this via positive shutoff pneumatic nozzles equipped with a vacuum suck-back function and mechanical deflation clamps that squeeze air out before the jaws close.
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3. Technical Specifications Matrix
Direct horizontal engineering benchmark comparing ZSYAN equipment against conventional machinery and manual packaging:
| Performance Parameters | ZSYAN SY-L2L240DL (Double-Lane) | Standard Single-Lane Liquid Bagger | Manual Liquid Dispensing Bench |
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| Dosing Mechanism | Twin pneumatic piston pumps (AISI 316) | Single peristaltic or gear pump | Manual lever-action tabletop pump |
| Packaging Output | 40 – 75 bags/min (twin parallel channels) | 20 – 35 bags/min | 6 – 10 bags/min per operator |
| Dosing Range | 5 ml – 50 ml per sachet | 10 ml – 100 ml | Variable (manual volume eye-check) |
| Dosing Precision | ±0.5 ml (honed micro-cylinder) | ±1.0 ml – ±1.5 ml | ±2.0 ml – ±4.0 ml |
| Nozzle Cutoff System | Pneumatic shutoff with suck-back pull | Gravity drip nozzle | Gravity stopcock (constant dripping) |
| Pneumatic Requirements | 0.60 MPa, 0.40 m³/min | 0.60 MPa, 0.25 m³/min | N/A |
| Electrical Power | 3.2 kW, 1-Phase 220V 50/60Hz | 2.2 kW, 1-Phase 220V | 0.4 kW (manual heat sealer) |
| Machine Dimensions | 1,800 × 1,300 × 1,850 mm | 1,400 × 1,100 × 1,800 mm | 1,200 × 800 mm (table) |
| FOB Investment Range | USD $10,500 – $15,500 | USD $7,000 – $10,500 | USD $2,000 |
4. Mathematical ROI & Payback
Financial payback model quantifying direct labor reduction, material optimization, and overfill elimination:
Direct Annual Net Savings (S) = [Leaker Rejection Reduction] + [Labor Reduction] + [Overfill Prevention]
Where:
- Leaker Reduction: Leaking pouch reject rate reduced from 4.8% to 0.2% on 3.8M pouches = $15,200
- Labor Reduction: 3 manual filling operators replaced across 2 shifts × $14,000 salary = $42,000
- Overfill Prevention: 0.8ml sauce overfill saved per pouch ($0.002/ml wholesale value) = $6,080
Total Annual Net Economic Benefit (S) = $63,280 USD
Machine Purchase Capital Expenditure (Capex) = $14,200 USD
Payback Horizon = (Capex / S) × 12 Months
= ($14,200 / $63,280) × 12 = 2.69 Months
In commercial sauce and condiment sachet packaging, preventing leaking pouches during container shipping prevents rejected pallets and retailer penalties. Combined with substantial labor reduction, the equipment repays its purchase price in less than 2.7 operating months.
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5. Engineering FAQs
Practical technical answers addressed to plant managers, automation engineers, and procurement directors (Click to expand technical response):
The nozzle tip houses a miniature spring-loaded internal poppet valve actuated by a dedicated auxiliary pneumatic cylinder. At the exact millisecond the piston cylinder reaches the end of its downward stroke, the poppet valve snaps shut against a Teflon seat while creating an instantaneous micro-vacuum that pulls trailing sauce droplets 3mm back up inside the nozzle bore.
Yes. The SY-L2L240DL is fully compatible with hot-filling protocols up to 95°C. The product tank features a heated water jacket with thermostatic PID regulation, while all dosing cylinder seals, gaskets, and rotary valves are manufactured from FDA-compliant fluorocarbon (Viton) and PTFE rated for continuous high-temperature food contact.
Prior to the horizontal sealing jaws clamping together, a set of mechanical sponge-lined deflation fingers gently compresses the mid-section of the formed liquid pouch. This sweeps excess ambient air upward through the open top, ensuring a compact, airtight, pillowy sachet that resists bursting during cartoning and pallet stacking.
Dosing stroke adjustment is governed by a central graduated micrometer lead screw on the piston drive yoke. Turning the calibrated dial adjusts the mechanical travel limits of both piston rods simultaneously. Fine-tuning knurled nuts on each individual cylinder allow micro-matching between the two lanes to achieve identical weights.
The entire liquid circuit is designed with sanitary Tri-Clamp connections. Operators can connect a standard CIP supply hose directly to the hopper manifold, cycling hot water and detergent through the rotary valves, piston cylinders, and injection nozzles without disassembling a single pipe fitting, completing a complete sanitization flush in 12 minutes.
6. Technical Inquiries & Quotes
Ready to Automate Your Packaging Facility?
Consult directly with ZSYAN factory engineers for custom pouch specifications, line layouts, and direct FOB quotations within 24 hours.
