 |
| Quantity: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Replacing traditional sewing processes, this ultrasonic welding machine creates seamless, leak-proof seals between filter cloth and PP/stainless steel ring mouths. It eliminates needle hole leakage and chemical contamination, meets FDA and GMP standards, and delivers 1500-3000 finished liquid filter bags per 8-hour shift for pharmaceutical and chemical applications. | |||||||||
The SY-4331 liquid filter bag head welding machine is specialized equipment designed for precise welding of filter bag openings and rings, including PP plastic rings, stainless steel rings and PE rings. It adopts ultrasonic or hot air welding technologies to replace traditional sewing processes, addressing common leakage and contamination issues in the filtration industry. This machine is suitable for commercial procurement and industrial applications requiring consistent and secure filter bag sealing.
The machine supports two welding methods to accommodate different production needs. Ultrasonic welding uses high-frequency vibration to instantly melt and fuse the interface between filter cloth and plastic ring mouths, creating a seamless seal with strength close to that of the base material. Hot air welding is suitable for continuous welding of bag body middle seams, achieving infinitely long welds through hot air heating and pressure wheel forming.
Equipped with PLC control and touch screen operation, the machine supports digital parameter setting for pressure, temperature and time, with a low failure rate. It features automatic fixed-length cutting and stepless speed regulation ranging from 0-7m/min. The integral aluminum profile frame provides high rigidity and precision, while the penetrating roller structure prevents material adhesion. Multi-welding head configurations, such as dual-head parallel models, can meet the one-time forming requirements of large-sized filter bags.
Parameter | Specification |
Compatible filter bag diameter | 90-245mm |
Compatible filter bag length | 230-820mm (covers standard 1# to 5# bags) |
Welding speed | 0-7m/min |
Temperature control accuracy | ±2℃ |
Maximum operating temperature | 700℃ |
Production capacity | 1500-3000 pieces per 8 hours |
Applicable ring mouth materials | PP, stainless steel, PE |
Applicable filter materials | PP, PET needled felt |
The welding process eliminates needle holes and suture gaps that cause side leakage. The reduced height of the welding protrusion at the bag opening further prevents leakage at the seal point, ensuring stable filtration performance.
No sewing thread or silicone oil lubricant is required during operation, eliminating secondary chemical contamination. The machine meets FDA and GMP certification requirements, making it suitable for applications with strict cleanliness standards.
Welding strength is equal to or greater than the strength of the filter cloth itself, providing pressure resistance and chemical corrosion resistance. Filter bags produced with this machine have a service life extended by more than 30%.
The automated welding speed reaches 7m/min, reducing reliance on manual labor. This can lower production costs by 20-40% for commercial users, while maintaining consistent production output.
This welding machine serves multiple industrial sectors with specific filtration requirements. In pharmaceuticals and bioengineering, it is used for welding filter bags for pharmaceutical solutions, plasma and CIP cleaning solutions, ensuring zero leakage and no fiber shedding. In chemical engineering and electroplating, it provides corrosion-resistant sealing for solid-liquid separation of strong acid and alkali solutions, coatings and inks. For water treatment, it is applied in pre-treatment processes for industrial wastewater and seawater desalination, compatible with polypropylene (PP) and polyester (PET) filter materials.
We offer tailored solutions to meet specific production needs. The process starts with demand confirmation, including filter bag parameters and process selection (full welding, ring seam welding + bag body sewing and other mixed processes). We then perform equipment adaptation, including welding head replacement and mold customization, followed by parameter debugging and sample testing. Operation training and equipment acceptance are provided upon delivery.
All machines are controlled according to the Welding Quality Management System 510 through three stages. Pre-weld inspection includes verification of raw material specifications and equipment calibration. Process monitoring involves real-time recording of parameters and spot checks of weld joint appearance. Post-weld testing includes sealing performance testing via 0.3MPa gas pressure test, strength testing via tensile testing machine, and cleanliness testing via particle flushing test.
The machine is compatible with filter bags with diameters of 90-245mm and lengths of 230-820mm, covering standard 1# to 5# filter bags. It can also be customized for non-standard sizes.
The welding process eliminates secondary chemical contamination, and the equipment meets FDA and GMP certification requirements for applications with strict cleanliness standards.
With stepless speed regulation up to 7m/min, the machine has a production capacity of 1500-3000 pieces per 8 hours, depending on filter bag specifications and process requirements.
Yes, we provide full customization services including welding head replacement, mold fabrication and parameter optimization to match specific filter bag parameters and production processes.
