Venturi tube welder for filter bag cage, 1) To weld venturi tube to the top of filter cage. 2) Spot cage welder 3) High speed Venturi tube welder for filter bag cage, • Model: DW-80 • Input voltage: 380V ( 2 phase) • Power frequency: 50Hz • Cooling method: water cooling • Air pressure: 0.6-0.8 MPa • Insulation grade: F • Power capacity: 80 KVA • Working load: 35 KVA • Water flow: 3 L/ min • Air flow: 100 L/ min • Weight: 400kg