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Saint Vanti Valve Needle Innovation Technology

Saint Vanti designed a valve needle with a cylindrical closure device, fixed on an independent central positioning device, ensuring smooth and wear-resistant valve needle movement, solving the heat transfer problem. In addition, an externally mounted valve needle with precise adjustment is available, allowing the valve needle height at the gate to be fine-tuned externally by 1.5mm, making installation and removal convenient and receiving industry acclaim.

2025

Increase in market share of domestically produced valve needles

With technological advancement, the market share of domestically produced valve needles in the glass fiber reinforced plastic parts project increased from 32% in 2019 to 67% in 2025. Between 2024 and 2025, domestic companies successively launched split-type cemented carbide valve needles, modular valve needle drive devices, and also obtained patent certification for the square valve needle head sealing glue structure.

2025

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