What Equipment Do You Need to Make a Valve Bag?
Valve bags are a specialized type of industrial packaging commonly used for products like cement, chemicals, flour, and animal feed. Known for their efficient filling, superior sealing, and cost-effective transport, valve bags play a critical role in bulk packaging solutions. But what exactly is required to manufacture a high-quality valve bag? In this comprehensive guide, we will detail the essential equipment used in valve bag making, including a breakdown of each stage in the manufacturing process, the technology involved, and recommended equipment manufacturers.
Understanding Valve Bags
Before diving into the equipment, it's essential to understand what a valve bag is. Valve bags are closed at one end and feature a valve or sleeve in the corner or center, allowing them to be filled quickly and efficiently using a filling spout. These bags can be made from paper, plastic, or a paper-plastic combination, depending on the application.
Application Scenarios:
● Cement and building materials
● Food products like flour, starch, and sugar
● Agricultural goods such as seeds and animal feed
● Chemical powders and granules
Step-by-Step Breakdown: Equipment Needed to Make Valve Bags
1. Tubing Machine (Tuber Machine)
The first step in valve bag production is converting raw materials (usually kraft paper or paper-plastic composite) into tubes, which form the body of the bag.
Recommended Equipment: Tecon Tuber Machine
Tecon's tuber machines are built with servo system integration, allowing for high precision and speed. This machine handles functions such as:
● Paper unwinding
● Side gluing
● Longitudinal pasting
● Perforation
● Cutting to the tube length
Key Features:
● Supports internal and external valve structures
● Adjustable to produce various bag lengths and diameters
● Capable of multi-layer paper feeding for increased strength
2. Bottomer Machine
Once the tubes are formed, they are transferred to a bottomer machine to shape and seal the bottom of the valve bag. This process also includes forming the valve opening.
Recommended Equipment: Tecon Bottomer Machine
Tecon's bottomer systems are designed for high-capacity, precision bag-bottoming. They offer:
● Bottom folding and gluing
● Valve patch insertion
● Bag mouth shaping
● Internal and external strengthening options for durability
Benefits:
● Smooth and strong bottom sealing
● Reduces material waste
● Fully automated process with high speed and accuracy
3. Printing Machine (Flexographic Printer)
Branding and information printing are essential for industrial packaging. Most valve bags are printed with product info, barcodes, and logos.
Printing Options:
● 2- to 8-color flexographic printing machines
● Inline or offline systems
● Water-based ink for eco-friendliness
Functionality:
● High-speed printing
● Precise registration
● Option for front and reverse printing
4. Cutting and Perforation Units
For proper functionality and easy use, valve bags often need perforations for breathability and pre-cut lines for folding or opening.
Equipment Includes:
● Micro-perforators for air release
● Die-cutters for window or handle cutting
Importance:
● Helps with product outgassing (cement, for example)
● Enhances stacking and filling efficiency
5. Inspection and Quality Control Systems
A reliable quality control system ensures each valve bag meets strength, size, and sealing standards. Automated inspection systems can be integrated into both tubing and bottoming stages.
Common Systems Include:
● Optical sensors for alignment
● Tension monitoring
● Bag leak detection
6. Auxiliary Equipment
To support continuous operation and maximize productivity, manufacturers also use:
● Automatic paper unwinding systems
● Gluing and sealing stations
● Counting and stacking systems
● Bag compaction machines (e.g., Big S compacting machine by Tecon)
Tecon's Big S compacting machine helps in reducing bag volume for easier transport and storage. It's particularly useful for bulk orders.
Why Choose Tecon for Valve Bag Making Machine?
If you’re considering setting up or upgrading your valve bag production line, Tecon is a manufacturer worth trusting. Here's why:
● High-Tech Innovations
Tecon has introduced advanced systems like servo-controlled Valve Paper Making Machines and options for internal and external valves.
● Proven Track Record
With over fifty inventions and patents, Tecon has been recognized as a national high-tech and new technology enterprise since 2012.
● Commitment to Quality
Tecon's philosophy revolves around quality-first, with a production facility that spans over 8000 m², offering a clean and organized environment ideal for precision manufacturing.
● Strategic Location
Located within 30 minutes of Guangzhou and 1 hour from the Guangzhou Airport, Tecon is well-positioned for global logistics.
● Comprehensive Product Line
From tuber machines to bottomer machines, Big S compacting systems, and paper-plastic valve technologies, Tecon covers the entire manufacturing process.
Conclusion
Manufacturing valve bags requires a coordinated system of advanced machinery, from tuber machines to bottomers, printing systems, and quality inspection units. Choosing the right equipment ensures bag strength, efficient production, and consistent quality, critical in industrial packaging sectors like construction, agriculture, and chemicals.
If you're searching for a reliable solution, Tecon stands out as a trusted partner offering high-tech, patent-driven machines and full support for your production line. Feel free to contact us at info@newtecon.com for more detailed information.