Keypack Intelligent Fully Automatic Granule Weighing Production Line For Large Bags designed for continuous automatic weighing and bag packaging of granular materials. It delivers high-speed packaging at 200 bags per hour with PLC touch screen control, high-precision metering, and SUS304 stainless steel material contact surfaces. Ideal for rice, wheat, white sugar, chemical fertilizer granules, plastic granules, and other free-flowing granular products in food processing, chemical manufacturing, and industrial packaging operations.
Product Overview
This automatic weighing line integrates advanced premade bag filling and sealing machine technology with intelligent bag feeding systems, creating a complete solution for granular material packaging. The Keypack Intelligent (Kunbupack) automatic bag packaging machine adopts a new-type production control system combined with a high-precision, high-speed dedicated metering controller, offering strong functionality, high reliability, excellent flexibility, and scalability for continuous production environments.
Engineered as a comprehensive high speed packaging solution, this production line features PLC touch screen control for seamless operation monitoring and adjustment. The system supports both automatic and manual operation modes, making it suitable for normal production as well as maintenance, debugging, and emergency handling scenarios. Material contact parts are constructed from polished SUS304 stainless steel, while other components use high-quality carbon steel with spray coating for durability and hygiene compliance.
Key Features and Machine Characteristics
1. Automatic and Manual Operation Switching
The automatic weighing line supports seamless switching between automatic and manual operation modes with self-locking capability. Manual mode enables maintenance personnel to perform debugging, inspection, and emergency handling, while automatic mode ensures continuous high-speed production for normal operations. This flexibility enhances operational safety and maintenance efficiency.
2. Advanced PLC Touch Screen Control with I/O Monitoring
Equipped with comprehensive PLC touch screen control, the system provides detailed I/O point comparison functionality, allowing operators to clearly understand the specific function of each PLC output point. The PLC backup point replacement feature enables flexible reassignment of output points, ensuring continuous and reliable operation even during component maintenance or troubleshooting.
3. Real-Time Operation Monitoring and Fault Detection
The premade bag filling and sealing machine incorporates real-time operation monitoring to maintain stable performance during high-speed packaging operations. Multiple safety and detection devices continuously inspect operating conditions throughout the production cycle. When a fault occurs, the system immediately triggers an audible alarm, and the machine operation monitor interface identifies the precise fault location, minimizing downtime and enhancing troubleshooting efficiency.
4. Intelligent Bag Feeding and Detection System
The bag feeding machine utilizes photoelectric sensors in the bag magazine to detect bag availability. When no bags are detected, the system automatically triggers an alarm and stops operation to prevent empty cycles. Air pressure detection is implemented throughout the entire bag feeding, gripping, and opening process to ensure high success rates. Any abnormal condition during these stages results in automatic rejection of empty bags, maintaining packaging quality and reducing material waste.
5. Air Pressure Safety Protection System
When air pressure drops below 0.40 MPa, the automatic bag packaging machine cannot operate normally. The system immediately triggers an audible alarm and performs an automatic shutdown to ensure the safety of both operators and equipment during packaging operations. This safety feature prevents equipment damage and maintains consistent packaging quality.
6. Adjustable Bag Guiding and Air Exhaust Structure
Guide rods connected to the bag-making guide conveyor belt effectively squeeze air out of bags and guide them smoothly to the sealing unit. The height of guide rods on the bag support frame can be adjusted according to customer requirements and specific bag volume and dimensions, providing flexibility for different packaging specifications and optimizing the sealing process.
7. Comprehensive Air Pressure Detection for Bag Handling
Air pressure detection monitors the entire process of bag feeding, gripping, and opening to ensure high bag feeding success rates. If any abnormality occurs during these critical stages, the equipment automatically rejects empty bags, maintaining production efficiency and preventing defective packages from entering the sealing stage.
8. Safety Door with Emergency Shutdown
The production line is designed with a safety door equipped with safety switches. If the protective door is opened during operation, the system triggers both audio and visual alarms and automatically performs an emergency shutdown. This safety feature protects operators from moving parts and ensures compliance with industrial safety standards.
Application Areas
Food Industry: Granular Food Product Packaging
This automatic weighing line excels in packaging rice, wheat, white sugar, and other granular food products through fully automatic weighing and bagging systems. The polished SUS304 stainless steel contact surfaces meet food safety standards, while the high-precision metering ensures consistent portion control for retail and wholesale food packaging operations.
Chemical Industry: Fertilizer and Chemical Granule Packaging
Ideal for chemical fertilizer granules and other granular chemical materials requiring stable automatic weighing and high-speed packaging capabilities. The robust construction and dust-control features make it suitable for industrial chemical packaging environments where consistent dosing and sealed packaging are required.
Plastic and Industrial Materials: Polymer Granule Packaging
The premade pouch fill and seal machine configuration handles plastic granules and other industrial granular products efficiently. The adjustable bag size range (750-950mm length × 400-550mm width) accommodates various packaging specifications common in polymer and industrial material distribution.
Multi-Industry Granular Material Packaging Lines
Suitable for integration into comprehensive packaging solutions including vertical form-fill-seal machine systems, multi-head weighing scale configurations, and complete high speed packaging lines. The PLC control system enables seamless integration with upstream and downstream equipment for end-to-end automated packaging operations across food, pharmaceutical, agricultural, and industrial sectors.
Product Specifications
| Parameter |
Specification |
| Bag Gripper Load Capacity |
25 kg |
| Packaging Bag Size |
L: 750-950 mm × W: 400-550 mm × H: 0-100 mm |
| Bag Type |
Open-mouth bags |
| Bag Feeding Speed |
200 bags/hour (depending on screw feeding speed) |
| Power Consumption |
3.5 KW |
| Material |
Material contact parts: SUS304 stainless steel with polished surface; Other parts: High-quality carbon steel with spray coating |
| Machine Weight |
Approximately 3000 kg |
| Control System |
PLC touch screen control with high-precision metering controller |
| Operation Mode |
Automatic/Manual switching with self-locking |
