Shanghai Junjingsai manufactures dedicated high-frequency welding machines for automotive seat back ventilation bags, engineered for reliable thermal sealing of TPU, PU, nonwoven, and sandwich mesh fabrics in mass production.
Applied Range
| Air PressureCategory | Semi-Automatic | Semi-Automatic | Fully Automatic |
| High Frequency Power | 8kw | 15kw | 15kw |
| Upper Pressure PlateSize | 600*400mm | 600*800mm | 700*300*200mm |
| Working Table Size | 700*540mm | 800*1000mm | / |
| Production Efficiency | 8-15s/piece | / | 8-15s/piece |
| Pressure Mode | Booster Cylinder | / | Booster Cylinder |
| Boundary Dimension | 2300*1500*2250mm | 2300*1500*2250mm | 6500*2500*2500mm |
Was established in 2006, originally known as Shanghai Junsai Packaging Equipment Co., Ltd. The company is headquartered in Shanghai, with production bases in Jiangsu, Chongqing, and Guangdong. Currently, there are over 150 employees, including 30 senior technical staff, covering a total area of more than 20,000 square meters.
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