Long boom concrete pump truck is a special engineering machinery that integrates concrete pumping and distributing functions. It is mainly composed of a car chassis, a multi-section folding boom system, a pumping mechanism, a hydraulic system and an intelligent control system. Its core function is to transport concrete directly to the construction site through an extendable long boom, which is especially suitable for scenes that require long-distance or high-altitude pouring such as high-rise buildings, bridges, and large venues.
1. Common boom length
According to industry classification standards, the boom length of long boom pump trucks is usually between 31-47 meters, and those above 51 meters are classified as super-long booms. The current mainstream products in the market cover the following ranges:
- Standard long boom: 37-48 meters, such as 60-meter carbon fiber boom pump truck (actually an extra-long boom, but the lightweight design enables flexible adaptation of the four-axle chassis)
- Extra-long boom: 56-101 meters, typical representatives include the 86-meter Guinness record pump truck and the 101-meter world's longest boom pump truck, the latter of which can cover the vertical pouring of a 30-story building.
- Special scenario models: For example, the 56m concrete pump truck adopts a 4-axle chassis design, which ensures a 56-meter boom length while achieving good site passability.
2. Core structure design
- Boom system
Adopt a multi-section folding structure (commonly 4-7 sections), and achieve compact storage through Z-type or R-type folding. The joint arm design simulates biological joint movement, reduces vibration by 50%, and greatly improves pumping stability.
- Pumping and hydraulic system
Ultra-large volume pumping: The maximum theoretical volume is 200 cubic meters/hour, and the delivery efficiency can still be maintained at 140 cubic meters/hour under high pressure conditions
Closed hydraulic circuit: A closed system is used to reduce energy loss, and the life of key components is extended through elastic sealing technology
Energy-saving control: Through engine speed optimization, fuel consumption is reduced by 15% while maintaining stable output
- Chassis and support system
Multi-bridge chassis design: The 101-meter concrete pump truck adopts a 7-bridge chassis, which increases the arm length while maintaining the optimized wheelbase, and the minimum turning radius is only 15 meters
Intelligent outrigger control: The standard OSS single-side support system can automatically adjust the support posture according to site conditions to ensure construction safety
Technical advantages of long boom concrete pump truck:
- High efficiency: The long boom concrete pump truck can quickly transport concrete to a distant construction location, reducing the need for manpower handling and improving construction efficiency.
- Flexibility: The long boom design allows the pump truck to operate flexibly in complex construction environments, overcome obstacles, and adapt to various terrains.
- Strong adaptability: It is suitable for a variety of construction projects such as high-rise buildings and large-scale infrastructure, and can meet the casting needs of different heights and distances.
- Reduce waste: By pumping concrete, material waste can be effectively reduced, ensuring the uniform distribution of concrete and improving the quality of the project.
- Safety: The long boom pump truck can be poured at a higher position, reducing the risk of workers working at high altitudes and improving construction safety.
- Save manpower: The use of boom pump trucks can reduce dependence on traditional casting methods, reduce the demand for manpower, and save labor costs.
- Precise control: The pumping system of the concrete pump truck can achieve precise control, ensure the flow and casting position of concrete, and improve construction accuracy.
Adapt to a variety of concrete types: The long boom concrete pump truck can adapt to a variety of different types of concrete, including self-leveling concrete and high-strength concrete.
Long boom concrete pump truck equipment is not only the core equipment of modern infrastructure, but also an important symbol of a country's engineering machinery manufacturing level. With the advancement of the "Belt and Road" construction, Chinese companies' long-boom pump trucks are occupying an increasingly important position in the global high-end market by virtue of their technological advantages and high cost-effectiveness.