Technical Specifications of HCQ5196THBEQ 28-meter Concrete Pump Truck

HCQ5196THBEQ 28-meter concrete pump truckBasic configuration

 Shandong Hongda Group has developed a 28-meter small concrete pump truck specifically for the urban and rural markets. The HTD5160THB-28/4 concrete pump truck is a premium product designed for medium and short boom pump trucks. It is a highly efficient concrete delivery device that integrates driving, pumping, and placing functions.
This pump truck combines high reliability, high cost-effectiveness, high safety, and high durability. The chassis, power system, electronic control system, hydraulic system, and pumping system are optimally integrated. The boom extends and retracts flexibly and quickly, the outriggers occupy minimal space, and the entire vehicle moves easily, offering excellent maneuverability, stability, and safety. Developed specifically for the rural market, the dedicated chassis can easily handle muddy and narrow rural roads, offering excellent maneuverability. Featuring a flexible four-section boom design, the material distribution range is 20% larger than that of a three-section boom. Additionally, the use of single-side support technology enables easy construction in confined spaces.

Hongda's new generation of small concrete pump trucks combine high reliability, cost-effectiveness, safety, and durability. They feature a power-sharing system using a transfer case, an electronically controlled directional control pump system, flexible and quick boom extension and retraction, compact outrigger footprint, and easy vehicle mobility. This model boasts high export pressure and large pumping capacity, making it an ideal construction equipment for new rural development, high-speed rail, beam production sites, bridges, tunnels, airports, ports, and indoor construction projects. It is built on the Dongfeng EQ1168GSZ4DJ specialized pump truck chassis, featuring an elegant and distinctive design, comfortable driving experience, powerful engine (240 HP), fuel efficiency, and reliable durability.
 
HTD5160THB-28/4 Concrete Pump Truck
1. Equipped with a Dongfeng EQ1168GSZ4DJ special pump truck chassis, it features an elegant and distinctive exterior design, comfortable driving experience, powerful engine (240HP), fuel efficiency, and reliable durability.
2. The vehicle has a width of 2,350 mm and a wheelbase of 5,100 mm. The front outriggers have a spread width of 5,600 mm, the rear outriggers have a spread width of 4,800 mm, and the longitudinal span between the front and rear outriggers is 6,050 mm. It is particularly suitable for applications such as new rural construction, high-speed rail projects, beam production facilities, bridges, tunnels, airports, ports, and indoor construction sites.
3. The power system adopts power sharing technology with a transfer case, which is stable and reliable, and is equipped with an automatic throttle for good fuel economy.
4. Hydraulic components use pumps and valves from Rexroth, Germany. The pump delivery volume has a stepless adjustment function, which can meet the requirements of different pump delivery volumes.
5. The control system employs PLC control, with primary electrical components sourced from brands such as Siemens, LG, and Schneider. The pumping speed can be freely adjusted within a fixed range to meet actual operational requirements, thereby achieving fuel efficiency. Additionally, the system features a true-color touchscreen display that provides real-time information on various system parameters, including engine speed, pumping time, pumping frequency, and the system's current status. In the event of a malfunction in any system component, the touchscreen will immediately display the fault details and proposed solutions upon data collection and analysis, guiding users on how to resolve the issue promptly to ensure smooth pumping operations.
 
6. All operations can be performed via close control and wireless remote control. Two independent operating devices ensure reliability and safety.
7. It uses an S-type reversing valve, hard alloy eyeglass plate, and cutting ring, and is equipped with a rubber spring that can automatically compensate for the end face gap to ensure good sealing performance.
8. The mixer has an automatic reverse function, which can promptly resolve the problem of aggregate jamming.
9. Equipped with an 8Mpa high-pressure cleaning system, vehicle cleaning is quick and convenient.
10. Both the hopper and concrete cylinder are lubricated with concentrated grease, which is pumped for lubrication. This effectively extends the service life of wear parts.
11. Select high-quality raw materials and use sophisticated manufacturing techniques:
    The boom, turntable, outriggers, and other structural components are manufactured using high-strength steel plates imported from JFE Steel Corporation of Japan and SSAB of Sweden.
 Using CNC precision underwater plasma cutting for material cutting. Underwater cutting ensures that the material properties of the steel plates remain virtually unchanged, with a heat-affected zone that is virtually zero.
Steel plates cut using conventional methods will deform, soften, undergo grain structure changes, and lose strength under flames reaching temperatures as high as 1000°C, with irreversible consequences that seriously affect the fatigue life of load-bearing structural components such as booms.
    Welded using high-strength steel welding wire imported from Germany (imported welding wire costs 70 yuan/kg, while domestically produced welding wire costs 8 yuan/kg).
    Welded using a Panasonic welding machine from Japan: stable welding current and voltage output ensure high welding quality.
    A dedicated beveling machine is used to bevel steel plates, ensuring stable welding quality.
    Special jigs are used to ensure that the gaps between the plates are reasonable during welding, that the heat is distributed evenly, and that deformation is minimal.
    The boom welding uses multiple welding methods, such as multi-layer multi-pass welding and symmetrical interlaced welding, to ensure minimal welding deformation and residual stress after welding.
    All butt welds are performed using an arc starting plate to keep the weld heads and tails, which are prone to defects, on the arc starting plate. After completion, these are cut off to ensure the reliability of critical weld quality. A mixture of 95% argon (Ar+CO₂) and 5% carbon dioxide gas is used as the shielding gas during the welding process, resulting in better weld quality. Overall preheating is performed before welding to ensure the overall temperature is between 70°C and 90°C, significantly reducing the generation of residual welding stress and minimizing the occurrence of early cracking in structural components.
Post-welding overall heating hydrogen removal treatment is performed to eliminate welding stress and prevent the boom from deforming or cracking due to stress release during use. All structural components, including the boom, brackets, and hoppers, undergo shot blasting treatment to eliminate welding stress.
The hopper water tank undergoes annealing heat treatment after welding to ensure that any residual welding stress is completely eliminated, resulting in virtually no deformation during use.

Using advanced design techniques and methods
Extensive use of 3D solid modeling, motion simulation and power analysis through virtual prototypes, finite element analysis and optimization design of key welded structural components, enabling the boom system to achieve lightweight, high strength, impact resistance, fatigue resistance, resonance frequency far from the pumping frequency, greatly improving the service life and safety reliability of the whole machine.
Concrete testing: Each pump truck undergoes concrete testing after leaving the production line. Only those that pass the test are sprayed with topcoat and stored in the warehouse. This ensures a high start-up pass rate for users.