Shandong Hongda Construction Group Co

Hongda concrete pump truck is a product of Hongda Group, which draws on advanced experience at home and abroad and uses modern advanced computer simulation technology to systematically analyze the impact of changes in various parameters such as stress, displacement, and natural frequency on the pump truck structure on the fatigue life of the boom. At the same time, we optimized the design of the hydraulic system and adopted new free fluid technology to reduce the impact of pumping reversal on the boom. We have obtained a number of patents for the structural optimization of the pump truck boom and the design of the hydraulic system. Product quality control, excellence in product manufacturing, and meticulous quality inspection have made Hongda pump trucks reach domestic leading and internationally advanced levels. All steel plates in the boom system are made of high-strength cold-rolled steel plates from Swedish companies, with a yield strength above 100%, ensuring that the boom The rack system has high strength and light weight. The boom system's distribution booms, legs, fuel tanks, etc. undergo post-weld stress relief. Every weld of the rack system has undergone non-destructive flaw detection or photo-photography to eliminate any hidden defects and provide better durability. Excellent
The slewing bearing of the boom system is made of products from Germany's Rotter Eide or Italy's Lario Lisa. It is made of 100% material and has higher strength and service life
Through finite element analysis and dynamic simulation analysis Accurate data support serves as the design basis to ensure that the boom system has a reasonable structure and excellent performance. The national testing center conducts stress and strain testing to verify that the boom structure calculation and analysis results are consistent with the actual working conditions. Hongda pump trucks adopt international procurement. The key is All components are from internationally renowned brands and have the following characteristics
Large-diameter conveying cylinder, good material suction and large pumping flow
Original imported German unlimited remote control device, light weight, easy to carry, only operated by a handle , the distribution boom can be accurately positioned
, the pumping volume can be adjusted steplessly
, the extension speed of the pump truck can be adjusted steplessly in fast and slow gears
, the boom rotation speed can be steplessly adjusted
> , Equipped with emergency braking device, diesel engine automatic speed up and down device, saving fuel consumption
Original imported German transfer case and German Rexroth pump set
Original imported slewing reducer and slewing motor
Original Imported German Hawe proportional multi-way valve
Original imported valves from German Rexroth and Italian Oil Control Company
All imported components, electric control box, and other control modules are products of German Siemens
Features of the hydraulic system
The free-flow closed hydraulic drive system formed by the confluence of two pumps has the characteristics of large output power, low loss, and smooth reversal without impact
The intelligent control system ensures continuous driving oil flow. Directly input the drive cylinder work without interruption and without loss
No need for cumbersome intermediate reversing control valve block, reducing reversing impact, avoiding excessive oil temperature, and making maintenance easier
With belt Compared with an open system with a huge fuel tank, a closed system requires a smaller fuel tank, and the oil in the tank flows gently and is not easy to emulsify
The unique buffer technology can reduce the high-pressure peak of the system, even when the output is high, the cloth The rod vibration is small and the tail pipe is stable
The electric proportional variable is adjusted to allow the concrete output to be poured as needed.