Liquid Sachet Packing Machine: Zero-Drip. Precision Fill. Leak-Proof Every Time.
BY-JLB160Y · Back Seal Liquid Pouch Filler · For Liquids, Sauces & High-Viscosity Pastes
Liquids leak. Pastes string. Sauces drip. And a single bad seal in a production run of honey sachets or ketchup pouches can cost you an entire batch, a customer relationship, or a retailer listing.
The BY-JLB160Y is a dedicated sachet liquid filling machine built around one engineering priority: getting liquid and paste products into the pouch and keeping them there. Advanced PLC-controlled sealing, a precision volumetric filling system, and an optimised back-seal structure deliver clean, consistent, zero-drip packaging — from free-flowing water to high-viscosity medical gel.
Whether you are running a water sachet machine operation, scaling a honey sachet packing line, or packaging shampoo, soy sauce, or pharmaceutical oral liquid, this is the sachet filling machine built for your product.
KPI bar:
- 10–100 ml Measuring range
- 10–50 bag/min Production speed
- 0 drip Zero-drip filling guarantee
- 50–280 mm Bag width range
CTA buttons:
- [Request a Free Liquid Filling Trial →]
- [Download BY-JLB160Y Technical Catalog]
Why Liquid and Paste Products Fail in Standard Sachet Machines
The Liquid Packaging Problem No One Talks About Until It’s Too Late
A sachet packing machine built for granules or powder will fail predictably when you run liquids through it. The failure modes are different — and more visible. A powder leak leaves a smudge. A liquid leak leaves a customer complaint, a shelf stain, and a product you cannot sell.
Liquid sachet packaging has three specific engineering challenges that generic sachet machines do not solve:
Drip after fill. Every liquid filling system has a cut-off moment — the point at which the valve or piston closes and the filling cycle ends. On poorly designed systems, liquid continues to drip from the nozzle after cut-off, landing on the film at the seal zone and contaminating the seal before the jaw closes. For water and thin sauces this creates a weak seal. For honey and high-viscosity pastes, it creates a string of product that bridges the seal entirely — what the industry calls “angel hair” or product pull-through.
Viscosity variation. Honey behaves differently at 15°C than at 35°C. Ketchup behaves differently at the start of a batch than at the end when the hopper is nearly empty and the product has been sitting under its own weight for two hours. A sachet liquid filling machine that is not designed to handle viscosity variation across a production run will show increasing fill weight drift and seal quality degradation as the shift progresses.
Seal integrity under liquid stress. A seal that holds perfectly against powder will fail against a liquid product under transport pressure. Liquid transmits pressure uniformly in all directions — any weak point in a seal is found immediately. The engineering tolerance for liquid sachet filling and sealing is simply tighter than for any dry product, and the sealing system must be specified accordingly.
The BY-JLB160Y is designed around all three challenges.
How BY-JLB160Y Delivers Zero-Drip Liquid Sachet Packaging
Core Technology & Strategic Advantages
Advantage 1 — Anti-Drip Precision Filling System
The BY-JLB160Y uses a volumetric filling mechanism with an anti-drip nozzle assembly. At the end of each fill cycle, a controlled suck-back action draws any residual liquid back from the nozzle tip before the filling head retracts — eliminating drip-after-fill contamination at the seal zone. For high-viscosity products like honey, syrup, or medical gel, the system includes temperature-controlled product pathways to maintain consistent flow characteristics through the full production shift.
Measuring range: 10–100 ml · 5 inlet sizes selectable: 19 / 25 / 32 / 38 / 51 mm depending on product viscosity and fill volume.
Keywords: sachet liquid filling machine · Honey Sachet Packing Machine
Advantage 2 — Optimised Back Seal Structure (夹拉背边封)
The back-seal (夹拉背边封) architecture on the BY-JLB160Y is specifically tuned for liquid products. The sealing jaw geometry applies consistent pressure across the full seal width, with precise temperature and dwell-time control at each point. The result is a hermetic seal that holds against liquid pressure in all directions — not just against a casual squeeze test, but against the compressive force of a full pallet of packed sachets in a shipping container.
For thin liquids (water, vinegar, soy sauce), the seal must form quickly and cleanly to maintain production speed. For viscous pastes (shampoo, ketchup, medical gel), the seal must resist the slow pressure the product exerts against the seal line over time. The BY-JLB160Y’s adjustable dwell time and temperature range covers both ends of the viscosity spectrum on the same machine.
Keywords: Liquid Sachet Packing Machine · Back Seal Liquid Pouch Filler · sachet filling and sealing machine
Advantage 3 — PLC Intelligent Automation
Advanced PLC control with sensor feedback automates the complete production sequence: product feeding, bag forming, filling, sealing, date coding, and pouch separation. All parameters — fill volume, seal temperature, seal dwell time, bag length, production speed — are set through a touchscreen interface and held in memory for each product profile. Changeover between products (for example, from soy sauce to honey) is a parameter recall, not a rebuild.
The system also monitors seal jaw temperature in real time, alerting the operator to any deviation from the programmed range before a seal quality problem develops — not after it has produced a batch of leaking pouches.
Keywords: sachet packing machine · sachet filling machine · sachet machine
Advantage 4 — Wide Viscosity Range on One Platform
The BY-JLB160Y handles the full viscosity spectrum from water (1 cP) to thick honey or gel-consistency medical products (up to approximately 50,000 cP depending on product temperature and inlet configuration). This makes it one of the most versatile sachet liquid filling machines available at this machine class — suitable for food, pharmaceutical, and daily chemical applications without requiring separate machine platforms for different product lines.
Advantage 5 — Customisable Pouch Options
Both models support: perforation, easy-tear notch, exhaust valve, round-corner punch, and custom-shaped pouch dies. For water sachet machine applications targeting retail or institutional markets, the round-corner option is a standard upgrade that adds perceived quality without operational complexity. For pharmaceutical oral liquid packaging, the easy-tear notch is effectively mandatory for end-user compliance.
Technical Specifications-Model Comparison: BY-JLB160Y Technical Parameters
| Especificación | BY-JLB160Y |
|---|---|
| Machine model | BY-JLB160Y |
| Sealing type | Back seal (夹拉背边封) |
| Applicable materials | Liquids, sauces, pastes, gels (all viscosities) |
| Packing speed | 10–50 bag/min (varies by product viscosity and fill volume) |
| Measuring range | 10–100 ml |
| Inlet size options | 19 / 25 / 32 / 38 / 51 mm (5 selections based on material) |
| Bag size (L × W) | L: 50–180 mm · W: 50–280 mm |
| Fuente de alimentación | Single phase 220V / 50Hz / 2.0 KW |
| Machine weight | 320 KG |
| External dimensions (L×W×H) | 1250 × 900 × 1950 mm |
| Control system | Advanced PLC + sensor feedback |
| Optional add-ons | Perforation · easy-tear notch · exhaust valve · round-corner punch · date coder · custom shaped pouch |
Note on speed: Rated speed is 10–50 bag/min. Thin liquids (water, vinegar, soy sauce) at small fill volumes typically run at the upper end of the range. High-viscosity products (honey, thick paste, medical gel) at larger fill volumes typically run at 15–25 bag/min. Contact us with your product viscosity and target fill volume for a realistic throughput estimate before purchasing.
One Sachet Machine Platform. Every Liquid and Paste Application.
Material Applications
Alimentos y bebidas Honey (蜂蜜) · Milk · Soy sauce (酱油) · Vinegar · Cooking oil · Seasoning water · Soup base · Ketchup (番茄酱) · Salad dressing · Fruit jam · Chilli paste · Oyster sauce
→ Honey Sachet Packing Machine: For honey specifically, the anti-drip nozzle and temperature-controlled product pathway solve the two most common problems in honey sachet packaging — drip-after-fill contamination and viscosity-driven fill weight drift as the product cools. [Read: Leak-proof testing: Ensuring quality in Honey Sachet Packaging →]
Water Sachet Machine Applications Drinking water · Flavoured water · Sports electrolyte drink · Herbal infusion · Oral rehydration solution
→ Water sachets represent one of the fastest-growing single-use beverage formats in emerging markets across Africa, Southeast Asia, and South Asia. The BY-JLB160Y is a proven platform for water sachet machine operations at both small-batch and commercial scale. [Read: Start your business with a Water Sachet Machine: Profitability Analysis 2026 →]
Medicine & Pharmaceutical Gel/paste liquid medicine · Chinese and Western medicine soup liquid · Probiotics oral liquid · Oral liquid medicine · Cough syrup
Daily Chemical & Industrial Disinfectant liquid · Cosmetic liquid (serum, toner, essence) · Shampoo (洗发水) · Industrial lotion · Pesticide liquid · Hand sanitiser
From Water to Honey: Understanding Viscosity in Liquid Sachet Packaging
Application Spotlight — The High-Viscosity Challenge
Not all liquids behave the same in a sachet filling machine. The viscosity of your product — how thick or thin it is — directly affects filling speed, fill weight accuracy, seal quality, and the nozzle configuration you need. Getting this wrong at specification stage is the most common source of post-purchase disappointment in liquid sachet filling machine purchases.
Low viscosity (water, vinegar, soy sauce — 1–100 cP) These products flow freely and fill quickly. The primary challenge is seal contamination — thin liquids splash easily and can reach the seal zone at high fill speeds. The anti-drip nozzle suck-back action is the critical feature for this product category. Speed potential: 40–50 bag/min at small fill volumes.
Medium viscosity (ketchup, salad dressing, jam — 500–5,000 cP) These products require a larger inlet diameter to maintain flow rate and filling speed. Temperature management matters — ketchup and similar products thicken significantly when cold, which slows fill speed and increases the risk of product stringing at the nozzle. The BY-JLB160Y’s 5-option inlet selector covers this range. Speed potential: 25–40 bag/min depending on fill volume.
High viscosity (honey, thick paste, medical gel — 5,000–50,000 cP) This is where a Honey Sachet Packing Machine specification matters most. High-viscosity products do not self-level after filling — they hold their shape inside the pouch, which means any product that reaches the seal zone during filling stays there. The temperature-controlled product pathway keeps honey and similar products at a consistent fill temperature throughout the shift, maintaining viscosity stability and preventing the flow-rate drift that causes fill weight variation and seal contamination. Speed potential: 15–25 bag/min.
Not sure where your product sits? Share your product’s viscosity specification (or simply describe the consistency — water-thin, honey-thick, toothpaste-consistency) when you enquire. Our engineers will recommend the right inlet configuration and realistic throughput figures before you commit.
Why Manufacturers Choose Fill-Package for Their Liquid Sachet Machine
- Free liquid filling trial before you commit — send your product, get sample pouches, fill weight data, and a seal integrity report within 5 business days
- 24-hour engineer response — all technical enquiries answered within one business day
- 95% repeat customer rate — customers return because machines perform as specified
- Remote troubleshooting — parameter guidance and fault diagnosis via video call, globally available
- Spare parts in 48 hours — sealing elements, nozzle components, and sensor spares held in stock
- On-site commissioning included — operator training at your facility for orders within standard service regions
- Food-grade and pharmaceutical compliant — all product-contact parts 304 stainless steel or food-grade materials
Yes. The BY-JLB160Y covers the full viscosity range from water to thick gel-consistency products using the 5-option inlet size selector (19 / 25 / 32 / 38 / 51 mm) and, for very high viscosity products, the temperature-controlled product pathway option. Share your product viscosity when enquiring and we will confirm the right configuration.
The anti-drip nozzle assembly uses a controlled suck-back action at the end of each fill cycle to draw residual liquid back from the nozzle tip before the filling head retracts. For high-viscosity products prone to stringing, the temperature-controlled pathway maintains consistent product temperature and flow behaviour throughout the shift, preventing the nozzle tail-off that causes string contamination at the seal.
Yes. Water is one of the most common applications for the BY-JLB160Y. At typical water sachet fill volumes (150–200 ml), the machine runs at 20–30 bag/min. For drinking water operations, we also recommend the easy-tear notch option and, for retail-facing products, the round-corner punch for premium presentation. The machine meets food-grade material standards for drinking water contact.
Yes, with the correct configuration. Honey sachet packing requires the temperature-controlled product pathway to maintain consistent viscosity during filling, the largest inlet diameter option (51 mm) for adequate flow rate, and anti-drip nozzle suck-back tuned for honey’s viscosity profile. We recommend a honey filling trial before purchase — send us 2–3 kg of your honey at your normal processing temperature and we will run a trial and send sample pouches
The machine is compatible with standard laminated films: BOPP/PE, NY/PE, PET/AL/PE (aluminium foil laminate), and transparent composites. For food-grade liquids (honey, sauce, juice), NY/PE or PET/AL/PE high-barrier laminates are recommended. For pharmaceutical oral liquids, consult your film supplier for compliance requirements. We can advise on film specification during the enquiry process.
Rated speed is 10–50 bag/min. Actual throughput depends on viscosity, fill volume, and seal dwell time requirements. Water and thin sauces at small fill volumes: 40–50 bag/min. Honey and thick pastes at medium to large fill volumes: 15–25 bag/min. Contact us with your product and fill target for a specific estimate.
Yes. Product changeover involves: recalling the saved parameter profile for the new product on the PLC touchscreen, flushing the product pathway, and switching the inlet nozzle if a different diameter is required. Estimated changeover time: 20–40 minutes for a full product type change including pathway flush and inlet swap.
Ready to Solve Your Liquid and Paste Packaging Challenges?Tell us your product (viscosity, fill volume, daily output target), your preferred pouch format, and any compliance requirements. Our liquid packaging engineers will configure the right BY-JLB160Y specification and arrange a filling trial with your actual product — at no charge