Semi-Auto Powder Fillers

Lantu Machinery Semi-Automatic Powder Filling Machine Series (Small & Large Weight Models with Hopper & Sewing Machine): Experience Ultra-Fast Automated Production

A semi-automatic powder filling machine, simply put, is an efficient factory packaging solution specifically engineered for fine, dusty, or sticky powders that are difficult to dose manually. Utilizing high-precision auger dosing technology combined with weigh-scale feedback, cleanable storage hoppers, and automated sewing/sealing units, it operates like an ultra-accurate weight control expert. Whether handling small-dose fine powders (e.g., 10g–5kg in bottles or small pouches like flour, milk powder, and spices) or large-dose heavy bags (e.g., 10kg–50kg in woven or paper bags like chemical powders, construction materials, and fertilizers), the system delivers precision dosing, fast filling, dust suppression, and seamless bag sewing/sealing without messy dust clouds or weight errors.

As a direct source manufacturer of packaging machinery, Lantu Machinery has designed this powder filling line to be as simple to operate as a smartphone, completely solving traditional manual problems such as airborne dust, inaccurate weighing, slow bagging, and tedious bag closing. Operators only need to position the container or place a bag onto the spout—a foot switch or sensor triggers automatic, high-speed auger filling. On large-weight models, once filled, bags drop onto a heavy-duty conveyor that feeds them into an automatic sewing machine for instant stitching and thread trimming. Offering both small-dose precision fillers and heavy-bag filling-stitching lines paired with dedicated hoppers, this system vastly streamlines your packaging workflow while saving time, labor, and costs for your plant.

Choosing a reputable source manufacturer is crucial to maximizing your Return on Investment (ROI). Lantu Machinery’s mature powder metering and dust-tight technology, combined with exceptional reliability and industry-leading dosing accuracy, ensures your production line runs smoothly with zero downtime.

Precision Components by Lantu Machinery: Providing Solid Guarantee for Efficient and High-Precision Filling

Our semi-automatic powder filling machine series is equipped with top-tier core components across the entire line, ensuring premium quality, zero defects, and an ultra-long service life right from the source.

1.Power & Pneumatic Control System

Top-Grade Pneumatic & Servo Actuators: Utilizes servo motor drives for auger rotation paired with SMC or AirTAC pneumatic bag clamps and shut-off valves, achieving millisecond response times for millions of trouble-free cycles.

High-Precision Servo Auger & Load Cells: Built with 316L/304 stainless steel precision-machined augers and high-precision load cells, keeping metering errors within ±0.2%–0.5% with high speed and reliability.

High-Precision Air Filtration & Pressure Regulation: Features a 3-stage air source treatment assembly to effectively filter moisture and impurities, ensuring stable, fluctuation-free air pressure.

Corrosion-Resistant & Explosion-Proof Hoses: Utilizes imported high-elasticity, corrosion-resistant air tubes that withstand high pressure to guarantee continuous, leak-free, heavy-duty operation.

2.Filling & Material Conveying System

Dust-Free & Leak-Proof Filling Nozzles: Fitted with Lantu’s self-developed pneumatic shut-off valves and jacketed dust-extraction ports. Active dust collection during filling eliminates airborne powder and product dripping.

Quick-Opening / Detachable Large Hopper: The hopper features a fast-opening clamp design and a stainless steel anti-bridging agitator, preventing powder clogging and allowing tool-free cleaning in under 10 minutes.

Heavy-Duty Conveyor & Automatic Sewing/Sealing Unit: Heavy-weight systems feature reinforced anti-slip conveyors and automatic photoelectric bag-sewing machines (optional edge-folding or heat-sealing modules) for automatic bag clamping, filling, conveying, and thread cutting.

Flexible Model Options (Small vs. Large Capacity): Select between benchtop/stand-alone small-dose models (10g–5kg) or heavy-bag packaging stations (10kg–50kg) based on production needs.

3.Intelligent Control & Safety Protection System

Siemens/Mitsubishi PLC Core: Industrial-grade CPU providing stable operation and strong anti-interference capabilities.

High-Sensitivity Photoelectric & Weighing Feedback: Equipped with online weight feedback auto-correction that adjusts auger speed dynamically according to powder density changes, achieving closed-loop “Weigh-Fill-Correct” precision control.

304 Stainless Steel Reinforced Frame: Enclosed dust-proof structure complies with GMP, food, and chemical safety standards while ensuring operator protection.

Technical Specifications of Lantu Machinery Semi-Automatic Powder Filling Machine

Applicable Materials and Packaging Bag Types Guide

To maximize your production line efficiency, LANTU Machinery’s semi-automatic powder filling machine features exceptional compatibility and customizable design, making it widely applicable to the following multi-industry materials and diverse bag/container types:

Applicable Materials (Powders, Ultrafine Powders, Mixed Powders)

Food & Health Products: Milk powder, starch, flour, coffee powder, cocoa powder, protein powder, seasonings (chicken bouillon powder, MSG, pepper powder), additives, etc.

Chemical, Pharmaceutical & Agricultural Chemical: Detergent powder, talcum powder, graphite powder, grout/joint filler, nanopowder, traditional Chinese medicine powder, pesticide powder, etc.

Feature Support:

For ultrafine, easily airborne powders (such as starch), it comes standard with a powerful dust collection and anti-flying filling head.

For powders prone to caking or with poor fluidity, it is equipped with a powerful anti-bridging stirring hopper.

For corrosive chemical powders, the entire machine can be upgraded to full 316L stainless steel material.

Applicable Bag Types and Containers (Full Coverage from Small to Large Weights)

Small & Medium Packaging (10g – 5kg):

Plastic bags, stand-up pouches, and aluminum foil bags of various materials (requires a heat sealing machine).

Rigid containers such as various plastic bottles, glass bottles, pull-tab cans, and tinplate cans.

Heavy-Duty Bag Packaging (10kg – 50kg):

Woven bags and kraft paper bags (paired with a vertical automatic photoelectric induction sewing machine to achieve automatic bag closing).

Inner-film composite bags and valve bags (heat sealing or “heat sealing + sewing” combination processes can be selected based on requirements).

5 Reasons to Choose Lantu Machinery Semi-Automatic Powder Filling Machine

When investing in automated packaging equipment, precision, low maintenance, and long-term durability are critical metrics. Lantu Machinery ensures every machine leaving our factory is built for “Plug-and-Play & Long-Lasting Reliability.”

Dust-Tight Environmental Design: Integrated dust-collection ports and pneumatic bag clamps achieve clean, dust-free filling, protecting plant environments and operator health.

Ultra-Clean Air Line & Mechanical Purging: Before assembly, all air tubes and fittings undergo high-pressure clean air purging to prevent microscopic dust from entering pneumatic systems, extending component life.

Pre-Shipment Full-Process Real-Material Testing: Prior to dispatch, every machine undergoes continuous real-material testing using actual powders (fine and coarse) across high, medium, and low speeds to ensure zero dripping and absolute weight accuracy.

Dual Protection Against Voltage & Pressure Fluctuations: Integrated wide-range voltage regulators and air pressure overload protectors handle factory power surges or unstable air supply easily.

Modular Quick-Dismantle & Cleaning Design: Hoppers and augers feature quick-release clamps and hinged doors for tool-free disassembly and fast washdowns, minimizing downtime during product changes.

Key Factors to Consider When Purchasing a Semi-Automatic Powder Filling Machine

To help you choose the equipment best suited for your production line, consider the following key procurement criteria:

Material Flowability & Powder Traits:

Ultra-fine / dusty powders (e.g., starch, milk powder) require bottom-up diving filling nozzles and dust vacuum extraction;

Non-free-flowing / clumping powders require heavy-duty anti-bridging hopper agitators;

Corrosive powders require full 316L stainless steel contact parts.

Target Packaging Weight Range:

Small-Dose Models: 10g–5000g, ideal for bottles, jars, or pre-made small pouches;

Heavy-Bag Models: 10kg–50kg, ideal for woven bags, kraft paper bags, or valve bags.

Bag Closing & Sealing Style: Woven bags require an automatic sewing machine; plastic/laminated bags require a heavy-duty heat sealer; paper bags with inner liners require a heat-seal + sewing combination.

Target Speed (Bags/Hour): Select single-auger or dual-auger configurations based on manual bagging and throughput needs.

Explosion-Proof & Special Environment Needs: For flammable or explosive chemical powders, explosion-proof motors, sealed control cabinets, and static grounding wires must be specified.

Lantu Machinery — Specialized Packaging Equipment Manufacturer, Source Quality Guaranteed.

Contact our team of professional engineers today to receive your free custom solution design and exclusive price quote!