The curved liner (also known as the arc-shaped protective plate) is the core protective component installed at the top of the inner cavity of the shot blasting machine housing. Due to the extremely high kinetic energy of the projectiles at the moment they leave the blades, some rebounding projectiles will continuously impact the top of the housing. The curved liner, with its precise streamlined design, not only can fully cover the vulnerable areas and protect the housing from being worn through, but also can guide the internal airflow and reduce the interference of turbulence on the projectile trajectory.
Core advantages and technical parameters
Top wear-resistant material: Utilizes high-chromium wear-resistant alloy cast iron (Cr20-Cr27), with a hardness of up to HRC 60-65 degrees. Specifically designed for "cutting-type wear" of high-speed projectiles, it has excellent surface fatigue resistance and a service life far exceeding that of ordinary manganese steel guards.
Streamlined arc design: The arc of the liner has been precisely calculated and seamlessly fits the shell of the centrifugal hammerer at a 1:1 ratio. This design effectively converts the direct impact force of the projectiles into frictional force along the wall, significantly buffering the impact energy and reducing operating noise.
Overall quenching process: After high-temperature quenching and tempering, internal stress is eliminated, ensuring that the liner does not fracture or fall off even under long-term high-frequency impact, thus ensuring the safety of operations in the centrifugal hammering chamber.
Easy installation and interchangeability: The head bolt holes are precisely positioned, and after installation, the surface is flat, reducing the phenomenon of hanging projectiles. It perfectly fits imported alternative models.
Technical Specification Summary
Key Item Technical Indicator
Material Composition High-chromium wear-resistant alloy
Hardness Grade HRC60-65
Installation Position Top of the blasting wheel housing (above the trajectory of the blades' ejection)
Main Function Protect the housing, buffer impact, guide the airflow in the inner cavity
Adaptability PropertiesTolerant to high temperatures, resistant to impact, and crack-resistant
