Publish Time: 2026-11-05 Origin: Site
Author: Li Gong, Senior Application Engineer, DONGGUAN HIPOWER LTD Published: Oct 07,2026 | Updated: Oct 07,2026 HIPOWER has specialized in environmental filter HF welding equipment for over 27 years, delivering customized automated welding & embossing solutions for industrial dust collection, air purification and filter material factories worldwide.
Manufacturers in industrial dust collection, air purification and environmental filtration face common challenges when welding non-woven cotton, needle-punched fabric and PU/TPU composite filter bags. Fibrous non-woven materials easily cause sparks and damage moulds, leading to high failure rate. Single-station machines waste loading/unloading time with low mass-production efficiency. Weak weld seams cause dust leakage and cracking, reducing filter performance and service life. Fixed station structures cannot flexibly match filter bags of different sizes and production capacities.
To solve these pain points, DONGGUAN HIPOWER LTD launches HR-25KW-4AC non-woven air filter bag HF welding machine. It adopts a 4-station automatic rotary table, with optional sliding table and single-side double sliding table configurations. Equipped with a stable high-Q oscillation system and high-sensitivity anti-flash protection, it is designed for welding and embossing air filter bags, filter cartridges and sleeves made of non-woven cotton, non-woven fabric, PU and TPU. It fits different production scales and multi-specification filter materials, with full non-standard customization available.
Equipped with 25KW HF power and premium 8T25RA electron tube running on 13.56MHz industrial frequency, the high-Q oscillation circuit delivers stable and uniform energy output. Optimized for non-woven cotton, needle-punched fabric, non-woven fabric, PU and TPU composite filter materials, it creates tight, leak-proof weld seams. It also performs filter material embossing and forming, combining two processes in one machine for air filter bags, dust collector bags and filter sleeves.
Three machine configurations are available: automatic rotary table, automatic sliding table and single-side double sliding table. Customers can select the best fit based on filter bag size, daily output and workshop layout.
4-station rotary type: cyclic multi-station operation with simultaneous loading, welding and unloading for higher efficiency, ideal for mass production of small-medium filter bags;
Sliding table type: ample operating space for large and long filter bags;
Single-side double sliding table type: alternate operation balancing efficiency and large workpiece adaptability.
Standard high-sensitivity 5557 instant anti-spark system cuts HF power within milliseconds when sparking occurs (common with fibrous non-woven materials). It effectively protects welding moulds and internal core components, reduces maintenance cost of expensive custom moulds and supports long-time continuous production for filter material factories.
Heating temperature is steplessly adjustable from 30℃ to 200℃, precisely matched to material thickness and type. Thin non-woven filter bags avoid burn-through, while thick non-woven cotton and composite materials get sufficient fusion, ensuring consistent weld quality in mass production and reducing reject rate.
Electrode size, worktable dimension, power rating, station quantity and automation level can all be customized. Dedicated welding dies, multi-cavity mould bases and automatic feeding/receiving structures can be designed for specific filter bag specifications. Private-label ODM & OEM service is available to build exclusive filter bag welding production lines matching customer product features and workshop layout.
With multi-station structure and wide material adaptability, HR-25KW-4AC fits four categories and dozens of filter material welding & embossing applications:
Suitable for edge welding of industrial dust collector bags, air filters, HVAC filter bags, purification cartridges and non-woven filter sleeves. Tight leak-proof seams with high strength meet filtration requirements of industrial dust removal, clean rooms and central air conditioning, ensuring service life and filtration efficiency.
Processes non-woven cotton products, non-woven storage bags, dust covers, sound insulation cotton and acoustic foam. Optimized spark protection for fibrous non-woven materials ensures stable welding and neat appearance for various non-woven deep-processing products.
Fits welding and embossing of PU and TPU composite filter membranes, waterproof breathable filter bags and functional filter materials. High-frequency fusion delivers high strength without damaging filter material performance, meeting requirements of special filtration products.
Applied to liquid filter bags, oil fume filter sheets, industrial filter cloth and filter cotton welding, edge sealing and embossing. One machine serves multiple purposes for diversified production in environmental filter factories.
Model: HR-25KW-4AC HF Output Power:25KW (8KW~35KW power customization available) Electron Tube:8T25RA HF Frequency:13.56MHz Power Supply:AC 380V / 50Hz 3-Phase, voltage customizable for export Input Power:35KVA Max. Clamp Pressure:2T Press Mode: Standard pneumatic, hydraulic upgrade available by customization Max. Electrode Gap:150mm Electrode Moving Range:100mm Standard Electrode Size:800*800mm (size & shape fully customizable) Temperature Range:30℃ ~ 200℃ adjustable Optional Structures: Automatic Rotary Table / Automatic Sliding Table / Single-Side Double Sliding Table Overall Machine Size: Final dimension subject to official quotation drawing Remarks: Full machine customization acceptable, ODM & OEM supported; specifications subject to technical upgrade without prior notice.
Yes. Optimized for fibrous non-woven and needle-punched materials with 5557 anti-flash protection, it delivers tight sealed edges with low spark damage risk, meeting sealing and strength requirements of industrial dust filter bags.
Yes. By changing corresponding embossing moulds, it performs filter material embossing and forming. One machine serves multiple purposes to reduce equipment investment.
Yes. Three configurations are available: rotary table, sliding table and single-side double sliding table. Customers can select the most suitable one based on filter bag size and production capacity.
Yes. Larger electrodes and worktables can be customized to fit large-size, long industrial filter bags and cartridges.
1-year full machine warranty plus lifelong remote technical support. Engineers offer on-site installation, commissioning and operator training. All technical inquiries get response within 24 hours.
All series non-woven filter bag HF welders support free material sample testing. Our engineers design tailored equipment based on filter bag type, material, size and production capacity. ▶ Request Free Quotation ▶ Free Filter Material Sample Test ▶ Download Machine Catalogue Contact Info: Email: hipower06@hi-pwr.com WhatsApp:+86-135-9014-6525 Tel:+86-0769-8600-3636 ext.812
Founded in 1999 (formerly Shenzhen Rili Machinery Factory), HIPOWER is a professional HF & ultrasonic equipment manufacturer integrating R&D, design, manufacturing, sales and technical service. It obtained CE certification in 2008, with independent import & export rights and products exported to over 60 countries worldwide. The company focuses on automated plastic welding, fusing, cutting and heat sealing. Its product portfolio includes filter bag welders, synchronous weld-cut machines, track-type membrane welders, automotive interior machines, blister packaging machines and cylinder forming machines. The HR-25KW-4AC series highlights multi-station non-standard customization, solving industry pain points such as easy sparking, low efficiency and poor sealing for environmental filter materials. It helps dust collection, purification and filter material factories achieve efficient, stable and automated mass production.