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Bag Closing Systems

Suitable For 10-50 kg Granule|Powder Bulk Bag Packaging

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What Is a Bag Closing System

Hualian bag closing system is equipment designed to automatically seal pre-made open-mouth bags that have been filled with 10 kg to 50 kg of materials in granular, flake or powder form. It is suitable for various types of bags, such as kraft paper bags, plastic film bags, aluminum foil bags, paper-plastic composite bags, and woven bags, etc.

What Is a
Bag Closing System

Hualian bag closing system is equipment designed to automatically seal pre-made open-mouth bags that have been filled with 10 kg to 50 kg of materials in granular, flake or powder form. It is suitable for various types of bags, such as kraft paper bags, plastic film bags, aluminum foil bags, paper-plastic composite bags, and woven bags, etc.

Why Choose HUALIAN's Bag Closing Equipment

  Range Of Application:

Hualian bag closing machines are suitable for sealing various 20–50 kg heavy-duty bags, including PE bags, PP bags, woven bags, kraft paper bags, valve bags, aluminum foil bags, paper-plastic composite bags, and aluminum-plastic composite bags. As the first manufacturer of heavy bagging machines in China and a key drafter of industry standards, Hualian ensures reliable performance across diverse packaging applications.

High Sealing Performance:

Our machines are engineered with high-precision and multi-layer sealing technologies, effectively preventing dust, insects, and contamination to protect product integrity. The maximum sealing speed of the heavy bagging machine series can reach up to 12 m/min, ensuring both efficiency and quality.

Various Styles: 

Hualian offers diversified sealing solutions based on different materials (powder, granular) and bag types. For example, powder materials can adopt dual protection with “inner plastic sealing + outer kraft paper/woven bag.” The machines support multiple sealing methods such as heat sealing, sewing, folding, and hemming, covering FBK, FBH, FBHK, FBP, FBC, FBF, FBS series, etc.

Equipped with internationally renowned brands: Omron, Siemens, Schneider, SEW, GS-7C, etc.

  Easy to operate:  

Designed for user-friendly operation, the machines require no special training—operators can run the equipment by simply following instructions. In addition, the system features automatic dust removal, contributing to environmental protection, reduced energy consumption, and lower defect rates. Customization is fully supported, including packaging format, speed, core components, and additional functions to meet specific production needs.

Packaging Method Diagram

After selecting the bag type, choose the most suitable packaging method based on your material properties. If you are a retailer and need to enhance the aesthetics of your packaging, you might choose colored plastic bags, which can be heat-sealed. If your country has environmental protection requirements for packaging, we recommend using kraft paper bags, which can be heat-sealed and sewn inside, with additional hot-melt adhesive paper for added strength. So Pls tell us your needs, and we will recommend a suitable model for you.

Bag Closing Machine By Packaging Method

Complete Bagging Line Integration

We offer complete automatic bag closing solutions—ranging from weighing and filling systems to bag-closing and palletizing systems—providing comprehensive, customized solutions. Whether for granules or powders, we supply precision packaging equipment tailored to your needs.

Related Equipment Options

  • Measuring and Filling Platform— Weighs material and automatically discharges it.
  • Bag Placer— Weighs material and automatically discharges it.
  • Bag Closing and Sealing Machine—  Seals pre-made open-mouth bags.
  • Inkjet Printer—  Seals pre-made open-mouth bags.
  • Bag Put-down Conveyor— Gently lays bags flat, reducing manual handling.
  • Palletizing Workstation— Automatically stacks bags onto pallets according to a specific pattern.
  • Pallet Wrapping— Secures the pallet load for stable transport.

How Does Bag Closing Systems Work

Once the Bag Closing System reaches operational status, the bag is fed into the machine, where a gripping chain secures the bag mouth and conveys it continuously. When the dust removal mechanism detects the bag at the designated position, it activates to remove dust from the bag mouth, deactivating promptly as the bag moves past. Upon detection by the stitching mechanism, the sewing machine engages to stitch the bag mouth; after the bag exits the sewing unit, the thread tail is cut and the bag mouth is trimmed. When the paper tape feed mechanism detects the bag at the designated position, it feeds the tape to wrap the bag mouth before cutting the tape. Finally, the heat-sealing mechanism seals the tape, followed by pressing and counting to complete the sealing process.

Different bags require different sealing processes. Our bag closing system can be configured to meet your specific packaging needs, handling operations such as stitching, inner liner sealing, folding, tape sealing, or combined sealing methods.

1

Trim Opening

2

Heat-Seal Liner

3

Press Liner

4

Sew Bag

5

Apply Tape

6

Heat Tape

7

Press Tape

(The vedio shows the FBK-3 Series; other series are adjusted accordingly based on packaging requirements.)

Application Industry For Bag Closing Systems

Designed for plastic pellets,pet food,milk powder,rice,grain,fertilizer,granule and powder products, providing complete weighing, filling, bag closing and conveying solutions.

Complete Bagging Line Integration

Customizable electrical component brands

Customizable powder-coated surface color

Customizable sealing direction

Customized bag-type adapter

Customized dust removal system

Customized sewing machine brand

Hualianpack offers fully customized services. Please provide your packaging requirements and material types, and our professional technical team will design drawings and solutions for you.

Hualian Successful Projects

Over 1000+ Clients Choose Hualian to Drive Efficient and Precise Packaging Across 9 Major Industries.

Hualian Bag Closing Systems Parameter List

 FBC-2FBC-2DFBF-32A FBF-32AD FBF-32B FBF-32BDFBP-3WFBK-332C
Voltage (V/Hz)AC 380/50
Gross Power(KW)5.5667.567.57.56.5
Transmission Power(KW)0.75
Heating Power (KW)4.55.06.455.0
Deduster Power (KW)0.60.750.75
Sealing Speed (m/min)0-110-108.5(Customized upper limit 11)
Height From Sealing Center to the Floor (mm)750-1450800-1400750-1450
Temperature Range  (℃)0-400
Air Source Pressure (Mpa)0.60.6
Deduster××××
Specification of Hot Melt Tape (mm)Width 70mm,paper core diameter 75mmWidth 75mm
External Dimension (L×W×H)(mm)3550×950×1800
Net Weight (kg)350320350320350350600

Fequently Asked Questions

Does the heavy bagging machine have a bag mouth cleaning function?

Yes. Our machine is equipped with a bag mouth dust removal system that effectively cleans residual powder before sealing, ensuring stronger sealing and cleaner packaging.

Does the heavy bagging machine come with a conveyor?

Yes. We recommend configuring a 5-meter belt conveyor with a 1.5 kW variable frequency drive (VFD) for adjustable speed and stable conveying performance.

What brand of sewing machine is used?

We typically use NEWLONG, with the recommended model DS-7C, known for stable performance and reliable stitching quality.

What types of bags can the machine handle?

It supports multiple bag types, including PP bags, PE bags, woven bags, kraft paper laminated bags, PE liner bags, and multi-layer bags (paper + PE + woven).

Which industries is the heavy bagging machine suitable for?

It is widely used in engineering plastics, fine chemicals, pet food, milk powder, rice & grains, food additives, and other industries requiring secure bag sealing.

What is the warranty period of the product?

The standard warranty period is 1 year.

Are you a factory or a trading company?

We are a factory manufacturing packaging&printing machines and we provide perfect OEM and after-sale service. We export machines to over 108 countries since 1995.

Do you have any certificate?

We have passed ISO9001:2008,ISO14001,OHSAS18001 and obtained CE certificate and BSCI certificate from UL.

Is there a Hualian distributor in my country?

Our Hualian products have 7 categories and more than 200 products. We have nearly 30 years of export experience and export to more than 200 countries. The distributors of different categories and countries are different. You can consult our sales for details.

How to solve the machine failure or problem?

We have rich experience in exporting products. For the common problems of conventional products, we have compiled relevant information sets (FAQ Q&A, unpacking videos, after-sales videos, etc.); at the same time, we have a professional technical team. If you encounter special problems, our sales staff will organize technical groups to provide online guidance.

How to buy machine accessories?

Each of our machines comes with a set of random accessories. If you have additional needs, you can reserve 1-2 years of easily damaged accessories when you purchase the machine. In addition, you can purchase them together when you purchase the next time. Even if it is an iterative accessory, Hualian will continue to provide it.

For complex machines, how to provide technical services?

1) Before delivery, you can come to our company for on-site operation and training
2) You can apply for paid customer on-site installation
3) For Hualian’s VIP customers and professional dealers, you can apply for local or off-site training of sales and technical teams every 1-2 years

What methods of communication do we use for our business?

Email, real-time online communication, online video conferencing, domestic and foreign exhibitions, domestic and foreign customer visits.

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