Automatic Powder VFFS

Say Goodbye to Dust Pollution and Backflow: Experience Ultimate High-Speed Vertical Powder Packaging

The Automatic Vertical Powder Packaging Machine (LT-420F to LT-720F Series) is an industrial-grade, high-efficiency automation assistant designed to solve vertical powder packaging pain points such as airborne dust pollution, material leakage during filling, powder-trapped seal splitting, and poor dosing accuracy.

LANTU Machinery introduces core models including the LT-420F / 520F Series (Fine Powder Standard Servo Film-Pulling Line) and the LT-620F / 720F Series (Flagship Heavy-Duty Large-Capacity Auger Filling Units). Featuring vertical servo auger dosing, high-precision servo film pulling, and pneumatic/servo horizontal sealing mechanisms, paired with submersible anti-dust filling nozzles and dynamic suction leak-stop units, the equipment acts like a precise and fast powder weight guardian. Whether handling small-to-medium fine powders like flour, starch, milk powder, and coffee powder (e.g., 10g–1000g pillow bags/gusseted stand-up bags) or large-capacity heavy vertical powder bags like chemical powders, construction materials, pesticide powders, and additives (e.g., 1kg–5kg large stand-up bags/quad-seal bags), it achieves automated bag forming, ultra-fast auger filling, negative-pressure dust extraction, and flat sealing in one seamless operation—ensuring zero dust flying, powder-free seal jaws, and exceptional package aesthetics.

As an original manufacturer of packaging machinery, LANTU Machinery has simplified the complex fully automatic vertical process—film forming, auger quantitative dosing, dust extraction & leak stopping, horizontal/vertical sealing, and photoelectric coding—into an operation as simple as using a smartphone. Operators simply set the target weight and bag length on the PLC touchscreen, load the film roll, and the machine automatically performs photoelectric tracking, film pulling, bag forming, auger dosing, and leak-stop valve closure before smoothly outputting finished bags. With bag widths ranging from 60mm to 350mm, paired with dedicated servo auger fillers and quick-release hoppers, this series significantly shortens packaging workflows while saving labor, time, and costs.

Choosing a reputable source manufacturer is crucial for your return on investment. LANTU Machinery’s proven auger dosing and air-tight leak-stop dust control technologies, combined with robust reliability and industry-leading film utilization, ensure smooth, zero-breakdown operation on your vertical powder packaging lines.

Core Components and Three System Guarantees (LANTU Precision Parts)

Our automatic vertical powder packaging machines are equipped with industry-leading components to guarantee high quality, flawless performance, and ultra-long service life from the source.

1. Power and Auger Filling Control System

Direct Servo-Driven Auger Dosing: Driven directly by a high-precision servo motor with millisecond response speed and adjustable rpm, maintaining dosing accuracy within $\pm 0.2\% – 0.5\%$.

Pneumatic Cut-Off Valve & Anti-Dust Filling Head: Equipped with LANTU’s proprietary pneumatic leak-stop valve and submersible filling nozzle, closing swiftly and completely. Combined with negative-pressure dust suction ports, it entirely resolves powder entrapment in seals and airborne dust issues.

Quick-Opening 304 Stainless Steel Hopper: Features a quick-release latch structure and anti-bridging agitator blades to prevent powder caking, enabling complete cleaning within 10 minutes without tools.

High-Precision Filtration & Corrosion-Resistant Pneumatics: Equipped with an industrial three-stage air treatment triplet and imported explosion-proof air hoses to ensure stable, long-term operation of cut-off valves and clamping cylinders.

2. Film Forming and Anti-Powder Sealing-Cutting System

Dual/Triple Servo Film-Pulling & Horizontal Sealing: Driven independently by servo motors to control film pulling and sealing jaws smoothly without tracking offset over millions of cycles.

Precision-Polished Scratch-Free Bag Former: Crafted from 304 stainless steel with mirror polishing for smooth film passage without scratching, ensuring crisp, upright bag shapes.

Independent PID Smart Temperature Control: Vertical and horizontal sealing jaws feature PID temperature modules combined with powder-entrapment rebound protection to ensure complete seal integrity without false seals or cracking.

Flexible Model Specifications:

LT-420F / 520F: Ideal for small-to-medium powder bags within film widths of 420mm/520mm (bag width 60–250mm);

LT-620F / 720F: Ideal for large heavy powder bags within film widths of 620mm/720mm (bag width 200–350mm).

3. Intelligent Control and Safety Protection System

Siemens / Mitsubishi PLC Central Control: Industrial-grade multi-core CPU control providing stable operation, strong anti-interference capabilities, and support for 10 languages.

Online Weigh-Feedback & Closed-Loop Correction: Features a high-sensitivity weigh-feedback module that monitors finished package weight in real time and automatically adjusts auger rpm to eliminate errors caused by bulk density variations.

Fully Enclosed IP65 Dustproof Safety Frame: Heavy-duty 304 stainless steel body equipped with a fully enclosed safety door that pauses operation upon opening, meeting GMP and food/chemical hygiene standards while ensuring operator safety.

Technical Specifications

To meet the diverse requirements of different factories regarding packaging speed, bag dimensions, and roll film width, Lanto Machinery offers four core high-speed automatic vertical powder packaging machine models (LT-420F to LT-720F Series) ranging from small/medium fine powder units to large heavy-duty machines:

Suitable Materials and Packaging Types

LANTU Machinery’s automatic vertical powder packaging machines offer superior compatibility and customized designs for diverse industries and container formats:

1. Applicable Materials (Fine Powders, Ultra-Fine Powders, Blended Powders)

Food & Health Products: Flour, starch, milk powder, protein powder, coffee powder, cocoa powder, spice powders, food additives, etc.

Chemical, Pharmaceutical & Construction: Enzyme preparations, talcum powder, nano-powders, detergent powder, pesticide powders, tile grout powders, herbal powders, etc.

2. Applicable Bag Formats (Automatic Roll Film Forming)

Standard Pillow Bags: The most popular economical pouch style, ideal for small powder sachets/pouches.

Gusseted / Standing Pouches: Adds bottom or side gussets allowing the pouch to stand upright on retail shelves for enhanced display appeal.

Punch Hole / Chain Bags: Ideal for retail pegboard displays or multi-pack promotional sets.

5 Reasons to Choose LANTU Machinery’s Vertical Powder Packaging Machines

High precision, low maintenance, and long-term stability are essential when investing in automated packaging lines. LANTU Machinery delivers plug-and-play, durable solutions for every factory.

Zero Dust Flying & Clean Powder-Free Seals: Dual protection via submersible dosing nozzles and pneumatic cut-off valves ensures complete discharge without residual powder spraying, keeping seal areas completely clean.

Ultra-Clean Pneumatics & Vibration-Damped Circuits: All pneumatic lines, connectors, and electrical wiring undergo clean-air purge and vibration-damped adhesive sealing before assembly to minimize wear and signal errors.

Pre-Factory Real-Powder Running Tests: Every unit undergoes continuous running tests across high, medium, and low speeds with various powder fineness levels (e.g., 200–2000 mesh ultra-fine powders) before dispatch to ensure zero feeding or sealing deviations.

Dual Voltage and Air Pressure Stabilization: Built-in wide-range voltage regulators and pneumatic overload protection handle power and pressure fluctuations to guarantee consistent dosing and sealing quality.

Modular Quick-Release Maintenance: Hoppers, augers, and bag formers feature tool-free quick-release structures for rapid disassembly and easy washing to minimize downtime.

Key Factors to Consider When Purchasing a Vertical Powder Packaging Machine

To help you choose the best machine for your production line, consider the following key selection criteria:

Target Bag Dimensions and Maximum Film Width:

Bag Width 60mm–200mm: Select LT-420F;

Bag Width 80mm–250mm: Select LT-520F;

Bag Width 150mm–300mm: Select LT-620F;

Bag Width 200mm–350mm (Large heavy bags): Select LT-720F.

Powder Physical Properties & Feeding Auxiliaries:

Ultra-fine / dusty powders: Must equip submersible filling nozzle + negative-pressure dust suction unit;

Poorly-flowing / bridging powders: Must equip anti-bridging agitator hopper + vibratory flow aid;

Corrosive powders: Require full 316L stainless steel construction.

Film Material & Thickness: Composite films (OPP/CPP, PET/PE) use standard heated sealing jaws; single-layer PE film requires a dedicated PE film impulse sealing system.

Target Capacity (BPM): Choose optimal auger rpm and servo film-pulling configurations based on speed requirements (e.g., 20–70 bags/min).

Explosion-Proof & Special Environment Needs: Explosive or flammable chemical powders require explosion-proof motors, sealed control boxes, and anti-static grounding.

Frequently Asked Questions (FAQ)

Q1: How do I choose between LT-420F/520F and LT-620F/720F?

A: Selection depends primarily on target bag width and package weight. For small-to-medium powder packages under 1kg (film width within 520mm), select the LT-420F/520F. For large 1kg–5kg heavy powder bags (film width up to 720mm), choose the LT-620F/720F flagship heavy-duty unit.

Q2: How do you prevent powder entrapment in seals that causes leaks and bursting?

A: We combine three proprietary technologies: a pneumatic cut-off valve, a submersible filling nozzle, and negative-pressure dust extraction during filling. The valve snaps shut immediately when auger dosing stops, ensuring zero residual powder stays in the sealing area when jaws close.

Q3: Is cleaning difficult when changing bag specs or switching powder materials?

A: Extremely simple. The hopper and auger feature hinged quick-opening latches and quick-release clips, allowing complete disassembly and washing within 10 minutes without tools. The PLC touchscreen stores multiple product recipes for one-touch specification switching.

Contact the Source Manufacturer Today to Get Your Customized Vertical Powder Packaging Solution!

LANTU Machinery — Dedicated Packaging Machinery Manufacturing, Source Factory Quality Guaranteed.