This mobile concrete placing booms are completery hydraulically driven, which have compact structure, perfect design and qualityTechnical Data ModelHGY15Boom length15 mHose length3 mRotary angle360°Rotary speed0.23 r/minPitching angle-0∼90°Pressure20 MpaMotor power4kWDrive modeCompletely HydraulicWeightSelf weight3.2 tBalance weight2.2t