Monoblock Liquid/Paste Packaging Models

LANTU Machinery All-in-One Liquid and Paste Packaging Machines (LT-300U, LT-300G, LT-300Y Series) — Delivering an Ultra-Fast Automated Production Experience

An all-in-one liquid and paste packaging machine is, simply put, a factory automation powerhouse that combines “material metering and bag packaging into one.” Powered by high-precision metering pumps paired with a vertical form-fill-seal mechanism, it operates like a lightning-fast, tireless packing expert. Whether handling liquid solutions (such as lotions, soy sauce, and seasonings), viscous pastes (such as creams, shampoos, and dishwashing liquids), or chunky sauces and jams containing particles (such as chili sauce and fruit pulp jam), it achieves a fully integrated workflow—from automatic film unwinding and forming, precise metering and filling, sealing and indentation, to cutting and discharging—ensuring a secure, leak-proof, and aesthetically pleasing finish.

As a direct source manufacturer of packaging machinery, LANTU Machinery has designed this traditionally complex liquid and paste packaging process to be as simple as using a smartphone. It completely eliminates past industry challenges such as “requiring multiple connected machines, large footprints, high contamination risks from manual filling, and prone-to-leakage seals.” Operators only need to press a few buttons on the intelligent touch screen to effortlessly set bag lengths, filling volumes, and sealing temperatures. This series offers three professional models to match specific needs: LT-300U (for sauce with particles), LT-300G (for viscous pastes), and LT-300Y (for flowing liquids). Turn on the production line, feed the film in, and finished small pouches come right out—dramatically shortening the packaging process to save your factory labor, time, and money.

Choosing a reputable source manufacturer is crucial for your equipment return on investment (ROI). LANTU Machinery’s mature liquid-paste integrated packaging technology, combined with high reliability and industry-leading sealing precision, ensures your production line runs smoothly with zero downtime.

LANTU Machinery Precision Components: Powering High-Efficiency and High-Precision Filling

Our LT-300 series all-in-one liquid and paste packaging machines are fully equipped with industry-leading core components, ensuring superior quality, zero defects, and an ultra-long service life right from the source:

1. Power and Pneumatic Control System

Top-Tier Pneumatic Actuators: Equipped with SMC or AirTAC pneumatic control systems, delivering rapid response speeds and ensuring tens of millions of trouble-free operation cycles.

High-Precision Dedicated Metering Pump/Cylinder: Features 316L stainless steel precision-ground cylinders (or specialized anti-corrosion liquid pumps), keeping metering errors within $\pm$0.5% with strong pushing force and precise measurement.

High-Precision Filtration and Pressure Regulation System: Equipped with a three-stage air source treatment assembly, effectively filtering out moisture and impurities from the compressed air to guarantee a stable, surge-free air circuit.

Corrosion-Resistant Explosion-Proof Air Tubing: Utilizes imported high-elasticity, corrosion-resistant pneumatic hoses that are pressure-resistant and explosion-proof, ensuring long-term, continuous, heavy-duty operation without air leakage.

2. Filling and Material Conveying System

Anti-Drip & Anti-Stringing Special Cutting Knives/Filling Nozzles: Features LANTU’s proprietary pressurized cut-off and anti-material-trapping sealing structures for clean cuts, completely eliminating liquid splashing and paste stringing that pollutes the sealing bands.

Series-Specific Hoppers and Pipelines:

LT-300U: Equipped with a U-shaped horizontal ribbon mixing hopper to prevent sauce particles from settling.

LT-300G: Equipped with a conical high-viscosity hopper or pressurized hopper to ensure smooth feeding of thick pastes.

LT-300Y: Equipped with high-level liquid gravity-fed or self-priming pump pipelines for ultra-fast filling.

Smart PID Independent Temperature-Controlled Sealing Molds: Utilizes a high-precision PID intelligent temperature control system with independently regulated horizontal and vertical sealing temperatures, ensuring flat, non-scorch, and leak-proof sealing quality across all types of composite and PE films.

Multi-Functional Bag-Forming Mechanism: Supports three-side seals, four-side seals, back seals, and chained bag-cutting options, customizable according to product shape requirements.

3. Intelligent Control and Safety Protection System

Siemens / Mitsubishi PLC Control Core: Industrial-grade central processing chips delivering stable operation and strong anti-interference capabilities.

High-Sensitivity Photoelectric Color Mark Tracking System: Uses high-precision optical eye detection to automatically align packaging film pattern color marks, achieving “precise color mark positioning and zero-deviation cutting.”

Thickened 304 Stainless Steel Enclosure: Fully enclosed safety protective shield design that complies with GMP and food/cosmetics hygiene standards while greatly safeguarding operator safety.

Technical Specifications of Lantu Machinery Integrated Liquid & Paste Packaging Machines (LT-300 Series)

5 Reasons to Choose LANTU Machinery All-in-One Liquid and Paste Packaging Machines

When investing in automated packaging equipment, high precision, low maintenance, and long-term stability are core metrics. LANTU Machinery is committed to making every machine shipped “plug-and-play and built to last.”

Compact Integrated Design Saves Space: Integrates metering and form-fill-packaging into a single unit with a small footprint, perfectly suited for space-limited production workshops or cleanrooms.

Ultra-Clean Air and Liquid Circuit Flushing: All air hoses and fittings are purged with high-pressure clean air prior to assembly, ensuring zero micro-dust or debris enters the system, thereby reducing valve core wear and clogging risks.

Full-Process Real-Material Testing Before Shipment: Before leaving the factory, every machine undergoes prolonged continuous operation testing at high, medium, and low speeds using real materials of varying viscosities to completely eliminate sealing leaks, material trapping, and accuracy deviations prior to dispatch.

Dual Voltage and Air Pressure Stabilization Protection: Built-in wide-voltage regulation modules and air-pressure overload protection devices effortlessly handle factory grid fluctuations or pneumatic instability, ensuring consistent quantitative and sealing quality.

Modular Quick-Disassembly and Cleaning Design: Features Tri-Clamp quick-release connections, enabling pipelines, pump bodies, and hoppers to be disassembled and washed within 10 minutes without tools, drastically minimizing changeover downtime.

What Factors Should You Consider When Purchasing an All-in-One Liquid and Paste Packaging Machine?

To help you select the equipment that best matches your production line, consider these key purchasing indicators:

Material Consistency and Model Matching:

Low-viscosity flowing liquids (e.g., essences, sample shampoos) $\rightarrow$ LT-300Y

Thick pastes, creams, dishwashing liquids $\rightarrow$ LT-300G

Sauces with fruit pulp or large particles $\rightarrow$ LT-300U

Bag Type and Dimension Range: Determine the required bag style (back seal, three-side seal, four-side seal) and dimensions (length and width), which dictate the specifications of the former and sealing molds.

Packaging Film Material: Composite films (e.g., PET/AL/PE, PET/PE) and pure PE films have different sealing temperature and heating block requirements—please provide packaging film samples in advance.

Target Capacity (Pouches/Minute): Select single-lane or multi-lane all-in-one machines based on your target packaging speed to match overall factory output.

Heating Insulation and Special Functions: If the paste solidifies at room temperature (e.g., butter, wax-based pastes), an electric heating insulation hopper is required. If date printing is needed, thermal printers or inkjet coders can be added.

LANTU Machinery — Dedicated to packaging equipment manufacturing, backed by source manufacturer quality assurance. Welcome to contact our professional engineer team for free system design and exclusive quotations!