Bag Welding Machine
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Bag Welding Machine

This is a high-efficiency device for welding bag bodies. Based on high-frequency welding technology and combined with the efficient control of a water-cooled system by a PLC, it can achieve a production capacity of approximately 1,500 bags per hour.
It is an excellent choice for both customers who need high production capacity and those who need to handle complex-structured products.
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  • HBLW-05

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Introduction

Designed and manufactured by Suzhou HETRO Automation Equipment Co., Ltd., this machine redefines production workflows for applications ranging from medical fluid bags to industrial packaging. This article explores the technical excellence, maintenance best practices, and operational insights of HETRO's flagship welding system while aligning with emerging trends in smart manufacturing and sustainability.


Product Overview: HBLW-05 Bag Welding Machine


Core Design Philosophy

Among the various bag welding solutions, some customers may not require fully automatic machines. Some products, due to their tubular film material, cannot easily achieve inline tail pipe welding. Others, which require manual welding of accessories, only need a basic bag shape at the initial stage. For these needs, the Bag Welding Machine (Model HBLW-05) is an excellent solution. It can achieve the goal of stable and aesthetically pleasing bag quality at a very low cost.




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Key Technical Specifications


Parameter Value
Model HBLW-05
Heat Sealing Method High-frequency welding
Power Consumption ≤10 kW
Power Supply 380V AC, 3P, 50Hz
Air Supply
0.5–0.8 MPa
Production Capacity 1000–2000 Pcs/h
Air Supply Requirement 0.5–0.8 MPa
Dimensions (L×W×H) 3500mm×1500mm×1900 mm
Net Weight 1200 kg
Material Compatibility PVC , TPU, EVA




  1. Flexible Integration:

    • Supports auxiliary processes like pre-punching, breathable membrane welding, and customized shaping within the same production line.


  2. Future-Ready Design:

    • IoT-enabled sensors (optional) allow real-time monitoring of welding parameters, aligning with Industry 4.0 trends for predictive maintenance and data-driven optimization.


Maintenance Tips for Longevity and Peak Performance


Routine Checks


  1. Daily:

    • Clean welding electrodes and alignment guides to prevent residue buildup.

    • Verify air pressure stability (0.5–0.8 MPa) to avoid pneumatic fluctuations.

    • Inspect electrical connections for wear or corrosion.

  2. Weekly:

    • Lubricate linear motion guides and ball screws with high-temperature grease.

    • Calibrate temperature controllers to maintain ±1°C precision.

  3. Monthly:

    • Replace worn-out gaskets and seals in the pneumatic system.

    • Test emergency stop functions and safety interlocks.




Troubleshooting Common Issues


Symptom Likely Cause Solution
Inconsistent weld seams Misaligned film feed Recalibrate tension rollers
Overheating Dust-clogged cooling vents Clean vents; check fans
Reduced speed Worn drive belts Replace belts; adjust tension


Sustainability Focus

HETRO’s machine reduces material waste by 15% through precision welding, supporting ESG goals. Its energy-efficient design (≤10 kW) also minimizes carbon footprint versus legacy systems.


FAQs: Addressing Critical Customer Queries


Q1: What types of products is the HBLW-05 best suited for?

The machine specializes in bags such as:

  • Waste liquid bags.

  • Nutrient bags.

  • Irrigation bags.
  • Customizable designs other luxury bag bodies.


Q2: How to achieve luxury bag body welding??

For the welding of luxury bag bodies, we can proceed in the following manner:

  • Cut openings in advance at locations where additional components need to be welded.

  • Then, the two layers of film are welded together to form the desired bag body.

  • For products that require breathable membrane welding, a breathable membrane welding unit can be added in the preceding process.


Q3: Can the machine handle high-viscosity fluids or thick films?

Yes. The high-frequency welding method penetrates thicker materials (up to 1 mm TPU/EVA) without delamination. Optional pre-heating modules are available for ultra-high-viscosity applications.


Q4: What is the typical maintenance downtime?

Routine maintenance requires ≤2 hours/week. HETRO’s modular components enable rapid part replacement, minimizing production interruptions.


Q5: Is the system compatible with other automatic units?

Absolutely. The HBLW-05 supports integration with tail pipe welding, valve assembly, and inline inspection units/modules.


Industry Trends and HETRO’s Strategic Alignment


Smart Manufacturing Integration

HETRO’s optional IoT add-ons transform the welding machine into a predictive maintenance hub:

  • Vibration sensors detect motor anomalies.

  • Thermal cameras monitor weld consistency.

  • Data analytics optimize cycle times and energy use.


Sustainable Production Demands

With global regulations pushing for greener manufacturing, the HBLW-05’s low-power high-frequency welding and reduced scrap rates align with circular economy principles.


Conclusion

The Bag Welding Machine from Suzhou HETRO Automation Equipment Co., Ltd. exemplifies engineering excellence tailored to modern manufacturing challenges. With its efficiency, IoT readiness, and commitment to sustainability, the HBLW-05 isn’t just a machine—it’s a strategic asset for businesses aiming to lead in quality, speed, and environmental stewardship.



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