Description: 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 booms fatigue life on HONGDA GROUPs drawing on advanced experience both at
home and abroad. Meantime, the group optimized
hydraulic systems design,adopted latest free fluid technique,greatly lessened pumping reversals impact on boom,and won many patents on
pump truck boom structures optimization and
hydraulic systems
design. Perfect
product quality control,perfect
product making,and absolutely adequate
quality inspection make HONGDA
pump truck achieve CHINAs 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 systems 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.
Accurate data support from finite element analysis and dynamics simulation analysis act as
design basis to ensure boom system with a scientific structure and excellent property. Stess and strain test are conducted by national test center to verify the agreement between boom structure calculated analysis result and actual working condition.