山东鸿达建工集团有限责任公司

A brief introduction of concrete pump truck with boom HONGDA concrete pump truck is developed by applying modern advanced computer simulation techniques and systematically analyzing what effect the change of such various parameters as stress,displacement,natural frequency,etc. pump truck structure receives has on booma??s fatigue life on HONGDA GROUPa??s drawing on advanced experience both at home and abroad. Meantime, the group optimized hydraulic systema??s design,adopted latest free fluid technique,greatly lessened pumping reversala??s impact on boom,and won many patents on pump truck boom structurea??s optimization and hydraulic systema??s design. Perfect product quality control,perfect product making,and absolutely adequate quality inspection make HONGDA pump truck achieve CHINAa??s leading level and international advanced level. Pump system adopts steel plates all from SWEDISH SSAB, which have been treated by high-strength coldrolling with yield strength beyond 900Mpa, to ensure boom system with high-strength and light weight. The systema??s aggregate carrying pipe,landing leg,and oil tank,etc. all have been treated by 100% stess removing after welding. Every welding seam has been treated by 100% nondestructive evaluation or X radial check to avoid any tiny defect and to make the machine more enduring. The boom system adopts slewing bearing from GERMANY ROTHE ERDE or imported ITALY product, which have higher strength and longer using life with texture to be 42CrMo.