Rear diaphragm spring brake chamber (rear axle spring brake caliper / rear brake chamber assembly), commonly known as the rear brake chamber master cylinder; Shacman Automobile original equipment part number: SZ905000742.
Primarily designed for the full range of Shacman Automobile Delong X3000, M3000, and F3000 tractor trucks and dump trucks, it is also compatible with the rear axles of Steyr series chassis. This dual-action air chamber is specifically designed for the rear wheels of the middle and rear axles, providing both parking and service braking functions. It comes in a standard long-rod version for hassle-free installation in the original position.
III. Structure and Performance Parameters
Type: T24/30 spring-energized dual-chamber air chamber (service brake chamber + parking spring chamber), with dual blue quick-connect air inlet ports
Rod Length Specifications: Standard-length push rod, universal rear axle model; mounting hole positions are identical to OEM specifications
Operating Air Pressure: Standard truck air pressure 0.6–0.8 MPa; parking spring emergency air-cut-off braking
Core Materials: Thickened cast steel housing, oil-resistant rubber diaphragm, high-strength pressure spring; resistant to jolts and erosion from rain and snow; suitable for heavy-duty construction site conditions.