1. The machine is fully hydraulic control and can slewing 360°. 2.The balance valves are products of Oilcontrol Company of Italy, and the solenoid directional valves are products of Rexroth Company of Germany.3. The main electric components are products of the world-renowned brand such as Omron or Schneider.4.There are two modes of operation: radio remote control and cable remote control.Main technical specification:Item HG28m Delivery pipe dimension(outside diameter×thickness)JJ83(mm×mm)φ134×4Delivery hose dimension(inside diameter×length)(''×mm)5''×3000Radius of placing boom(m)27.7Stationary height(to the join between the end of the boom and Swivel table)(m)22.9Hydraulic foldable arms1st section10.5m2nd section9.2m3rd section8.0mBoom articulation1st section4.2° +82.5°2nd section0° 180°3rdsection0° 180°Slewing range(°)360°Power of motor(Kw)11Pressure of hydraulic system(Mpa)28Type of hydraulic oilESSO NUTO H46Model of operationcable remote controlradio remote controlPower380V/50HzWind speedPlacing concrete≤60km/hClimbing≤28km/hWorking temperature0 48