Valve bag machine manufacturer: A leader in innovative technology and precision manufacturing.

In the powder packaging industry, valve bag packaging machines have become the core equipment for automated packaging of fine powder materials such as cement, gypsum powder, and putty powder. Behind this efficient and precise packaging technology lies the relentless technological innovation and process breakthroughs of valve bag machine manufacturers.

In the powder packaging industry, valve bag packaging machines have become the core equipment for automated packaging of fine powder materials such as cement, gypsum powder, and putty powder. Behind this efficient and precise packaging technology lies the relentless technological innovation and process breakthroughs of valve bag machine manufacturers.

Suzhou Yideng Machinery Co., Ltd., a leader in this field, has been focusing on the technological research and development and manufacturing of valve bag equipment since its establishment in 2001, witnessing and promoting the evolution and transformation of valve bag packaging technology in China.

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Overview of Valve Pouch Packaging Technology

Valve bag packaging machines are specialized equipment for automatic quantitative packaging of fine powdery materials. They consist of an automatic feeding system, a weighing unit, a bag clamping unit, a discharge and return air system, and an electrical control unit.

This device completes the filling operation through a built-in one-way valve on the bottom or side. During filling, the powder enters the bag through the valve, and the valve automatically closes after filling to prevent leakage.

Valve bags are typically made of high-strength woven fabric (such as PP) or composite film, capable of withstanding the high weight of building material powder (e.g., 25kg/bag). Their working principle involves using a motor as a power source to drive the impeller inside the discharge seat to rotate, achieving uniform feeding.

The sensor measures the weight of the material inside the bag in real time and inputs the signal into the microcomputer. When the set value is reached, the microcomputer outputs a signal, and the sealing cylinder extends to seal the outlet, completing the packaging process.

Core technological advantages

Valve bag packaging technology has multiple advantages over traditional packaging methods. High precision : Utilizing screw feeding and vibration compensation technology, the measurement error is ≤±0.2%, lower than the national standard requirement of ≤±0.5%.

Exceptional efficiency : Filling speed can reach 8-15 bags/minute (25kg/bag), which is more than 50% more efficient than traditional open bag packaging.

Outstanding environmental performance : The negative pressure ventilation system recovers dust to the dust collector, keeping the dust concentration in the workshop ≤10mg/m³, which meets environmental protection requirements.

High safety : For powders that are prone to static electricity, key components are explosion-proof, and the filling nozzle is equipped with a sealing ring to prevent humid air from entering the bag and extend the shelf life of the powder.

High degree of automation : Parameter setting and weighing calibration are simple and easy to understand. Operators only need to put on the bag and press the allow button to automatically complete the entire feeding and weighing process.

Yideng Machinery: An Industry Leader in Technological Innovation

Suzhou Yideng Machinery Co., Ltd., established in 2001, is an enterprise specializing in the research and development and manufacturing of valve bag equipment. In its early stages, the company imported advanced valve bag equipment from abroad and underwent technical learning and assimilation.

After 20 years of technological research and experience accumulation, Yideng Machinery developed a paper bag valve bag production line with independent Chinese intellectual property rights in 2020 , with its technology level far ahead of its domestic counterparts.

The company maintains friendly relations with leading international technical teams, has traveled to Europe multiple times for technical training, and has expanded into international markets under the guidance of international professionals.

Application areas and market demand

Valve bag packaging machines are widely used in various industries. In the cement industry , they are often used in conjunction with automatic palletizers for packaging ordinary Portland cement and special cement in 25kg/50kg bags, achieving full automation of the packaging-palletizing-warehousing process.

In the gypsum product industry, applications require a moisture content of ≤1%, and the valve bag's sealing effectively prevents moisture. For putty powder and coatings , the valve bag packaging machine meets the requirements of high metering accuracy and no clumping, while the vibrating feeder effectively breaks up powder clumps.

In the field of ceramics and refractory materials , valve bag packaging machines need to be equipped with negative pressure ventilation and high-efficiency dust removal systems when processing ultrafine powders such as ceramic raw materials (e.g., kaolin) and refractory mud.

In terms of market demand, for small-scale production (<100 tons/day), a single-head valve packaging machine can be selected, which is inexpensive and easy to maintain; for large-scale production (>200 tons/day), a double-head or four-head packaging machine should be considered, along with an automatic bagging machine, with a capacity of up to 600 bags/hour.

Industry standards and quality control

With the development of valve bag packaging technology, the corresponding standard system is also constantly being improved. In November 2021, Xiamen Jiachuang Technology Co., Ltd. released the enterprise standard "Valve Bag Making Machine" (Q/XMJC008-2021).

This standard specifies the model specifications, working conditions, basic parameters, requirements, test methods, inspection rules, marking, packaging, transportation, storage, and instructions for use of valve bag making machines.

In January 2025, the Hebei Provincial Quality Information Association released the group standard "Technical Specification for Production of Square Bottom Valve Bags" (T/HEBQIA 341—2025).

This standard specifies the processing requirements, environmental requirements, equipment requirements, and personnel requirements for the production of square bottom valve bags, and is applicable to the production and manufacturing of square bottom valve bags.

Changshu Sanhe Measurement Equipment Factory has also formulated the enterprise standard Q/320581CWR002-2018 "DCS Type Automatic Quantitative Valve Bag Packaging Machine for Nanopowders", which replaces the 2015 version of the standard and is suitable for quantitative packaging of nano-level ultrafine powders.

The formulation and implementation of these standards have provided a technical basis for the production and quality control of valve bag packaging equipment, and promoted the healthy development of the industry.

Operation, maintenance and safe production

Proper use and maintenance of valve bag packaging machines are crucial for ensuring production efficiency and extending equipment lifespan. In terms of operation, in case of unexpected situations such as spraying materials or gripping hands, the emergency stop switch should be pressed immediately to cut off the power.

Cover the bag properly and press down the top of the bag to avoid spraying. If the automatic bag-flipping function fails, you can press "Manual Bag Flipping" for assistance.

For maintenance, before starting work each day , it is necessary to clean the fluidized residue and dust from the scale body, switch the selector switch to manual mode, and press the emergency stop switch to cut off the power.

If the butterfly valve does not close during feeding, it means there is no material in the main warehouse. You should switch to the clearing mode to pack the last few bags of material.

In automatic mode, if there are expanded bags and large dust packaging bags, the pressure of the fluidizing gas source should be reduced appropriately; if there is slow discharge and blockage, the pressure of the gas source should be increased appropriately or the cylinder should be slowly discharged.

If the packaging bag is severely bulging when the packaging is in customs clearance mode, it means that the material in the fluidized bed warehouse has been emptied.

Future development trends

Valve bag packaging technology will continue to develop towards intelligence, efficiency, and environmental friendliness . In terms of intelligence, an increasing number of valve bag packaging machines are equipped with multiple communication interfaces, enabling them to connect to computers for various data processing tasks.

In terms of efficiency, the widespread adoption of dual-head and four-head packaging machines has continuously increased production capacity, reaching up to 600 bags per hour. Regarding environmental protection, dust control technology requirements are becoming increasingly stringent, necessitating the installation of pulse jet dust collectors with a filtration efficiency of ≥99.9%.

Modular design is also becoming a trend, allowing core components such as screws and vibrators to be quickly disassembled and replaced, reducing downtime. PLC control systems support self-diagnosis of faults, displaying error codes intuitively on the HMI screen, which can improve maintenance efficiency by 30%.

With the deepening of the Industry 4.0 concept, valve bag packaging machines will become more intelligent, enabling remote monitoring, predictive maintenance, and automated production management, providing more comprehensive solutions for the powder packaging industry.

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Yideng Machinery represents the technological advancement and innovative spirit of Chinese valve bag machine manufacturers.

From technology import to independent innovation, from the domestic market to the international stage, Yideng Machinery has completed its technological accumulation and market expansion in twenty years.

In the future, with the advancement of intelligent manufacturing and the increasing demands for environmental protection, valve bag machine manufacturers such as Yideng Machinery will continue to lead the industry towards higher precision, higher efficiency, and greater environmental friendliness.

Valve bag packaging technology will also be applied in more fields, providing a more complete solution for powder material packaging.