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This is a dual-chamber brake chamber with a fully sealed structure design. The spring chamber is isolated from the outside environment by multiple sealing rings and a dust boot, effectively preventing mud, dust, and moisture from entering the internal spring mechanism. It is especially suitable for heavy vehicles such as mixer trucks, dump trucks, and mining trucks that operate long-term in wet, dusty environments. The product corresponds to part number 9253621000, with dimensions and mounting interfaces manufactured to this specification, making it easy to cross-reference against existing parts lists for purchasing replacements.
Effectively prevents mud, dust, and moisture from entering the internal spring mechanism, extending the service life of the spring mechanism and reducing the risk of parking brake failure caused by internal corrosion; verified through both salt-spray and water-immersion testing.
Suitable for vehicles operating in wet, dusty environments such as mixer trucks, dump trucks, and mining trucks.
Aimed at the construction machinery OEM market; enhanced testing to a customer-specified sealing grade is supported, with third-party test reports issued on request.
Zhejiang Rongzhan Machinery Co., Ltd. is China T30/30 Fully Sealed DD Brake Chamber Suppliers and T30/30 Fully Sealed DD Brake Chamber Factory, We specialize in the production of spring brake chambers and service brake chambers for trucks and trailers. Backed by stable production capacity, strict quality control systems, and extensive export experience, our products are widely supplied to overseas markets and OEM customers worldwide. Rongzhan is committed to reliable quality, consistent performance, and long-term partnerships. We provide customers with cost-effective solutions and dependable service.
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