This series of machines belong to the roller type shot blast-cleaning machine ,and mainly used to de-stress and surface de-rust the steel structures,such as Large-scale H steel,etc.In the construction and bridge professions. We can design different size of shot blasting machine for H beam and other structure steel according to customer's demand. Technical Specification: Model: QH698 1. Inlet opening: 800mm* 1000mm 2. Size of H beam: Height≤1000mm, Width ≤800 3. Roller conveyor speed: 0.5-4 m/min, frequency inverter 4. Max load of conveyor: 2000 kg/m 5. Rust removal standard: Sa2.5 6. Number of turbine: 8 pcs 7. Power of turbine: 7.5 KW* 8 8. Total power of this machine: about 130 KW 9. Protective liner of cabinet: ZGMn 13 10. Dust collector: cartridge type dust collector 11. Noise level: ≤90 dB