Centrifugal Impeller For Kobelco Centrifugal Air Compressor
The centrifugal impeller is the most critical rotating component in a Kobelco centrifugal air compressor. It accelerates air radially outward via high-speed rotation, converting velocity energy into pressure energy in the diffuser and volute. For Kobelco models (e.g., KOBELCO KOBE STEEL series like TA-, TM-, TRE-, or M-series for air compressors), the impeller is typically: Material: High-strength aluminum alloy (e.g., 7075-T6) or stainless steel (e.g., 17-4PH), depending on model and operating pressure. Manufacturing: Precision 5‑axis CNC machined or forged, with full static & dynamic balancing (ISO 1940 G1.0 or better). Features: Open or closed type? Kobelco often uses closed (shrouded) impellers for higher efficiency and reliability in oil‑free air applications. Key considerations for replacement or sourcing: OEM vs. aftermarket OEM (Kobelco) guarantees exact fit, material certs, and balancing. Expensive but