Valve Pocket Machine Price List: 2025 Comprehensive Buying Guide and Market Analysis

Valve bag packaging machines, as key equipment in modern industrial production, are widely used in numerous industries such as chemical, building materials, food, and pharmaceuticals. Their main function is to automate the metering, filling, and sealing of powdery and granular materials, significantly improving production efficiency while ensuring packaging accuracy. With continuous technological development, the types and functions of valve bag machines are becoming increasingly diversified, resulting in significant price differences. This article will provide you with a detailed price list for valve bag machines and analyze the key factors affecting prices to help you make your purchasing decision.

I. Overview of Valve Bag Packaging Machine Technology

Valve bag packaging machines are high-efficiency devices specifically designed for valve bag packaging. They employ advanced weighing technology and an automated control system to achieve accurate measurement and rapid packaging. A valve bag is a specially designed packaging bag with a valve for material filling. After filling, it automatically closes or is heat-sealed, effectively preventing material leakage and contamination.

Based on their working principles and structural characteristics, valve bagging machines are mainly divided into several types, including gravity type , spiral type , and pressure type . Gravity type is suitable for granular materials with good flowability (such as urea and sugar), spiral type is suitable for powders with poor flowability (such as flour and lime), while pressure type is suitable for packaging special materials such as waterproofing agents and other liquid or viscous materials.

II. Valve Bag Making Machine Price List

The following is the price range for common valve bag packaging machines currently on the market. Specific prices may vary depending on configuration, brand, materials, and customization requirements:

Equipment type	Packaging capacity range	Price range (RMB/unit)	Main features and application areas	Precision Standard	Packaging speed
Basic semi-automatic valve bag machine	5-25kg	10,000 - 20,000	Simple structure, easy to operate, suitable for small businesses	≤±0.2%	≥2 packets/minute
Standard fully automatic valve pocket machine	5-50kg	20,000 - 35,000	Automatic weighing, conveying, and sewing are integrated into one unit, suitable for most powdery and granular materials.	≤±0.2%	80-240 packs/hour
Large fully automatic valve bag machine	25kg-2 tons	28,000 - 50,000	Large-capacity packaging, supports ton bags, suitable for industries such as mining and chemicals.	±0.2%	5-40 bags/hour
Stainless steel corrosion-resistant valve bag machine	10-50kg	32,000 - 45,000	Made of 304 stainless steel, it is corrosion-resistant and meets the requirements of the food and pharmaceutical industries.	±0.2%	2-4 bags/minute
Explosion-proof valve pocket machine	5-50kg	35,000 - 55,000	Explosion-proof design, suitable for chemical and flammable/explosive environments.	≤±0.2%	100-240 packs/hour
Ultrasonic sealing valve bag machine	Multiple specifications	10,000 - 15,000	Sealing in under 1 second, no chemical adhesives required, environmentally friendly and energy-saving.	N/A	fast
Dual-head multi-head high-speed valve bag making machine	10-50kg	28,000 - 60,000	Dual-head or multi-head design, high speed and high efficiency, suitable for large production lines	±0.2%	30-60 packs/minute

Note: The prices above are for reference only. Actual prices will be determined based on specific configurations, customization requirements, and market fluctuations.

III. Key Factors Affecting the Price of Valve Bag Machines

1. Degree of automation

The level of automation of the equipment is the primary factor affecting its price. Semi-automatic equipment requires manual bagging and is relatively inexpensive (approximately 10,000-20,000 RMB); while fully automatic equipment can automate the entire process of bag loading, metering, filling, sealing, and even coding, and is more expensive (20,000-60,000 RMB). Fully automatic equipment has a built-in chain or roller conveyor system that can be linked with an automatic bag sewing machine to achieve one-stop completion of bagging, conveying, and sewing, significantly improving production efficiency.

2. Materials and Manufacturing Process

Equipment made of ordinary carbon steel is less expensive, while equipment made of 304 stainless steel or other corrosion-resistant alloys is 30%-50% more expensive, but is better suited to the hygiene requirements and highly corrosive environments of the food and pharmaceutical industries. Whether the equipment is designed according to national GMP standards, whether there are any dead corners in the material flow path, and the completeness of the dust removal system also affect the price.

3. Weighing System and Accuracy

Equipment employing high-precision sensors and intelligent instruments, such as models that support dynamic weighing with an accuracy of ≤±0.2%, is typically more expensive. Some high-end equipment uses weighing control terminals with functions such as fault self-diagnosis, automatic zeroing, and automatic drop correction, offering high sensitivity and strong anti-interference capabilities, all of which increase the equipment's cost.

4. Production capacity and speed

Packaging speed directly affects equipment price. Low-speed equipment (e.g., 5-40 bags/hour) is cheaper, while high-speed models (e.g., 100-240 bags/hour) are more expensive due to their more stable structure and more complex control system. High-speed valve bagging machines with dual or multi-head designs (e.g., 30-60 bags/minute) are also relatively expensive due to their high efficiency.

5. Customization requirements

Customizing special features will incur additional costs, for example:

• Explosion-proof design : suitable for chemical and flammable/explosive environments, but the price is more than 30% higher than ordinary equipment.
• Dust removal system : Equipment equipped with negative pressure dust removal system (air volume 800-2500 m³/h) or active return air dust removal device is more expensive but can effectively reduce dust pollution.
• Sealing technology : Ultrasonic heat sealing technology is suitable for plastic valve bags, which has strong sealing performance and no slag, but it increases costs; pneumatic clamping technology has relatively low costs.
• Feeding method : The choice of gravity, spiral or belt feeding system will also affect the price. The appropriate feeding method should be selected according to the material characteristics (such as flowability, particle size and moisture content).

6. Brand and After-Sales Service

Equipment from well-known brands is typically more expensive, but offers more reliable quality assurance, technical support, and after-sales service . Some suppliers provide one-year warranties, on-site repairs, technical training, and lifetime service, all of which are reflected in the equipment price to some extent.

IV. How to Choose a Suitable Valve Bag Packaging Machine

When selecting a valve bag machine, the following factors should be considered:

1. Material characteristics : The bulk density, particle size, flowability, moisture content, corrosiveness, and explosion-proof requirements of a material directly affect equipment selection. For example, granular materials with good flowability can be fed by gravity feeding, while powders with poor flowability require screw feeding.
2. Packaging requirements : Specify the daily packaging specifications (e.g., 5-50kg or ton bags), packaging speed, and accuracy requirements. This will determine whether you need a basic or high-speed, high-precision machine.
3. Production environment : For the food and pharmaceutical industries, equipment made of stainless steel and meeting hygiene standards should be selected; for chemical and other places with explosion-proof requirements, explosion-proof equipment should be selected.
4. Budget and ROI : Balancing initial investment with long-term operating costs. A highly automated, low-energy, and low-maintenance device may require a large initial investment, but it can lead to greater labor savings and increased efficiency.
5. Supplier evaluation : Choosing a supplier with mature technology and comprehensive after-sales service is crucial. Understand whether the supplier provides installation and commissioning, operation training, warranty policies (such as a one-year warranty), and timely repair response.

V. Key Points of Operation and Maintenance

Proper operation and regular maintenance are key to ensuring the stable operation and extending the service life of valve bag packaging machines.

• Preparation before operation : Check the air supply pressure (usually 0.4-0.8MPa), power connection, clean the equipment, and ensure that all parts are secure.
• Bagging and Start-up : Bagging can be done manually or automatically. Filling begins after the limit switch is triggered. The equipment will automatically complete the fast and slow feeding, weighing, and bag unloading processes.
• Routine maintenance : Regularly clean the sensors, check the air circuit sealing, lubricate moving parts, calibrate the weighing system, and replace vulnerable parts in a timely manner.
• Troubleshooting : Learn how to solve common problems such as inaccurate measurement, loose bag clamping, and poor dust removal, or contact after-sales service in a timely manner.

The price of valve bag packaging machines is influenced by multiple factors, ranging from basic models costing tens of thousands of yuan to high-end customized fully automatic production lines costing hundreds of thousands of yuan. When purchasing, investors should not only focus on the initial purchase cost, but also comprehensively consider the equipment's technical performance, materials and processes, compatibility, after-sales service, and overall long-term operational benefits .

Hopefully, this detailed price list and purchasing guide for valve bagging machines will help you make an informed decision based on your actual production needs, material characteristics, and budget. Choosing the right valve bagging machine will effectively improve your production efficiency, packaging quality, and management level, injecting momentum into your company's sustainable development.