Bulk Bag Filling Machine with High Efficiency and Stability

Feature

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Inflatable Dust-Proof Sealing System

An inflatable sealing ring is installed at the filling spout. After bag loading, the seal expands and connects tightly with the bag inlet. This prevents dust leakage during high-flow filling.

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Bag Inflation and Shape Control

A high-volume air blower inflates the bag before filling. This opens the bag fully and ensures even material distribution. The filled bag keeps a stable and square shape.

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Vibrating Compaction Platform

The base is equipped with a heavy-duty vibration system. It removes air gaps during filling and increases material density. This improves stacking stability and transport safety.

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Automatic Hook Release System

The pneumatic hook system releases automatically after filling. No manual operation is required. This improves safety and reduces labor intensity.

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Dual-Speed Feeding Control

The system uses coarse and fine feeding modes. High-speed filling ensures efficiency, while fine feeding ensures accuracy at the final stage.

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Heavy-Duty Gross Weighing Structure

The machine uses a gross weighing system with a reinforced frame. High-load sensors ensure stable performance under large capacity and harsh conditions.

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Structure

Filling Spout with Sealing Unit

The filling head connects directly with the bag inlet. The sealing system prevents dust leakage.

Hanging Frame

The frame holds the bulk bag securely during filling. It supports heavy loads and maintains balance.

Weighing System

Load cells monitor the total weight in real time. The system ensures accurate control of filling volume.

Feeding System

Controlled feeding devices deliver material into the bag. Operators can configure different feeding methods.

Control System (PLC)

The machine uses a PLC system with touch screen interface. Operators can set parameters and monitor operation easily.

Principle

The bulk bag filling process begins with placing and fixing the empty bag onto the hanging frame. The bag inlet connects to the filling spout, and the sealing system is activated. The system then inflates the bag to ensure a stable shape before filling.

Material enters the bag through controlled feeding systems such as gravity, screw, or vibration feeding. The weighing system monitors the weight in real time. As the weight approaches the target value, the machine switches to fine feeding and stops automatically at the preset value.

After filling, the system releases and conveys the bag for further handling. The entire process is controlled by a PLC system for stable and continuous operation.

Application

Compound Fertilizer

Used for large-scale packaging of NPK fertilizers.

Organic Fertilizer

Suitable for bulk packaging of organic materials.

Chemical Industry

Used for bulk powder and granule materials.

Building Materials

Applicable to cement, lime, and mineral powders.

Agriculture & Grains

Also suitable for bulk materials such as soybeans, corn, raw salt, and feed pellets.

Advantage

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High Filling Efficiency

Designed for large-capacity packaging. It supports continuous high-speed filling and improves overall throughput in bulk handling systems.

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Stable Bag Shape

Bag inflation and vibration ensure uniform material distribution. The filled bags remain firm and stable for stacking and transport.

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Clean Production Environment

The sealed filling structure effectively reduces dust leakage. It helps maintain a cleaner workspace and meets environmental requirements.

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Flexible Adaptation

The filling head and hanging frame are height-adjustable. One machine can handle different FIBC bag sizes, improving production flexibility.

Technical Specifications

Model	Weighing Range	Packing Speed	Accuracy	Power	Voltage	Air Pressure	Feeding Method
SYM-2000T	500–2000 kg	8–40 bags/h	±0.2–0.5%	≤ 2kW (Gravity) ≤ 5kW (Spiral)	380 V	0.4–0.7 MPa	Gravity / Spiral

FAQ

1. What bag types can the machine handle?

The machine is designed for standard FIBC (bulk bags) with lifting loops. It can handle different bag sizes and structures, including U-panel and circular bags.

2. How is dust controlled during filling?

The machine uses a sealed filling spout with an inflatable ring. It can also be connected to a dust collection system for better environmental control and a cleaner workspace.

3. Can the machine handle different material types?

Yes. It can process granular, powder, and bulk materials. Feeding methods (gravity, screw, or belt) can be selected based on your material's flow characteristics.

4. What is the typical filling capacity per hour?

Capacity depends on material type and bag size. In general, the system can handle 8–40 bags per hour, ensuring efficient high-volume packaging.

5. Is customization available for plant layout?

Yes. The machine can be customized based on site conditions, including total height, conveyor direction, and the level of automation required for your specific workflow.

Bulk Bag Filling Machine