Customers using the valve-type low-pressure vacuum quantitative packaging machine include:

1. Additives: stearates, stabilizers, lubricants, etc.

2. Micropowders: silica, matting agent, graphene, etc.

2. Toners: pigments/pyrolysis/acetylene black, dyes, etc.

3. Modified: modified stone powder/flame retardants/starch, etc.

Components:
Vacuum pump, vacuum chamber, bag filter, inner cavity mold, weighing system, vacuum system, vacuum proportional valve control system, etc.

Working Principle:
The pressure difference between the vacuum chamber and the feeding device is used to draw the powder into the packaging bag within the vacuum chamber. The vacuum proportional control valve performs weighing, achieving sealed vacuum packaging.

Product Highlights:
It completely eliminates the need for air in the packaging bag, ensuring a dust-free packaging process within a sealed environment.

Product Features:
Fully vacuum suction, negative pressure monitoring of the vacuum chamber, capable of withstanding a negative pressure of 90 kPa, adjustable mold within the vacuum chamber, and automatic opening and closing of the vacuum chamber door. System Integration:
PLC program control, human-machine interface operation, intelligent digital vacuum meter monitoring, weighing module measurement

Vacuum Type Low Negative Pressure Valve Bag Packaging Machine | Clean & Precise Powder Bagging Solution

The Vacuum Type Low Negative Pressure Valve Bag Packaging Machine is a specialized equipment designed for packaging ultra-fine and lightweight powder materials. By using a low negative pressure vacuum feeding system, this machine ensures accurate weighing, dust-free operation, and clean packaging performance. It is widely used in chemical powders, building materials, food, and pharmaceutical industries.

Key Features

• Low Negative Pressure Feeding – Uses vacuum suction to convey powder smoothly, preventing material bridging and blockages.

• Dust-Free & Clean – The sealed design with vacuum-assisted filling greatly reduces dust emission, keeping the workshop environment safe.

• High Precision Weighing – Integrated weighing system ensures accurate filling for lightweight and fine powders.

• Wide Bag Compatibility – Applicable for valve bags made of paper, PE, and PP woven with liners.

• Automation Ready – Can be integrated with automatic bag placers, ultrasonic sealing, and robotic palletizers.

• Durable & Reliable – Industrial-grade construction ensures stable and continuous operation.

Applications

The vacuum type valve bag packaging machine is especially suitable for powders with very fine particle sizes, poor flowability, and strict dust control requirements, including:

• Chemicals: pigments, silica, titanium dioxide, additives

• Building Materials: fly ash, micro-silica, gypsum powder

• Food Industry: flour, starch, milk powder, cocoa powder

• Pharmaceuticals: nutritional powder, herbal extracts, fine medical powders

Advantages of Low Negative Pressure Technology

Compared with impeller, auger, or pneumatic feeding systems, the vacuum low negative pressure system provides:

• Better dust control and cleaner packaging process

• More stable filling for fine and lightweight powders

• Reduced material waste and higher accuracy

For manufacturers who need clean, precise, and environmentally friendly valve bag packaging, the vacuum type low negative pressure valve bag packaging machine is the ideal solution to improve efficiency and product quality.

[caption id="attachment_1362" align="alignnone" width="736"] Automatic Bagging Valve Bag Packaging Machine is specialized equipment designed for high-efficiency packaging of powdered and granular materials into valve-type bags. These machines are widely used in industries such as cement, mortar, chemicals, minerals, fertilizers, and food additives.
The machine works by automatically positioning the valve bag onto the filling spout. Once in place, the product is discharged into the bag through an air or impeller filling system, ensuring fast, accurate, and dust-free packaging. After filling, the valve on the bag self-seals or can be heat-sealed for enhanced protection, eliminating the need for manual stitching.
Equipped with weighing systems, the machine ensures precise filling accuracy, reducing material loss and improving production efficiency. Advanced models may feature PLC control, touch-screen operation, dust-collection units, and integration with conveyors or palletizing systems for a fully automated packaging line.[/caption]

[caption id="attachment_1363" align="alignnone" width="573"] Vacuum Type Low Negative Pressure Valve Bag Packaging Machine | Clean & Precise Powder Bagging Solution[/caption]