How Much Do You Know About Concrete Pump Working Principle

Posted On: 28/03/2025 | Posted by: Haomei Concrete Pumps

In the field of modern construction, concrete pump trailers have become an indispensable key equipment in infrastructure construction with their powerful pumping capacity and flexible adaptability. Whether it is a towering skyscraper or a winding and complex tunnel project, concrete trailer pumps can accurately deliver concrete to the designated location, providing a solid guarantee for project efficiency and quality.

1. Concrete pump working principle

The core of the concrete trailer pump is a set of efficient hydraulic drive system. Its working process can be summarized as three links of "suction, pressure and delivery": the motor or diesel engine drives the hydraulic pump group, and the pressure oil pushes the main cylinder piston rod to reciprocate. When the piston rod of one side of the cylinder extends, the piston rod of the other side retracts, forming an alternating pumping action. After the concrete is pre-treated by the mixing mechanism in the hopper, it is sucked into the delivery cylinder through the distribution valve (such as S-tube valve or skirt valve), and then pushed to the pipeline by the piston under high pressure, and finally arrives at the operation point. In this process, the constant power control technology of the hydraulic system can automatically adjust the delivery volume according to the working conditions to ensure the stability and efficiency of the pumping.

2. Pumping height

The pumping capacity of a trailer concrete pump depends on its design pressure and pipeline configuration. The vertical pumping height of ordinary models is usually between 30-100 meters, which is suitable for multi-story buildings and conventional bridge construction. 40 meter concrete pump is an ideal choice for 13-14 story buildings.

In actual applications, the coordinated optimization of pipe diameter, concrete mix ratio and pumping pressure is the key factor that determines the final pumping effect.

3. Applicable projects

High-rise buildings and bridges

The high-pressure pumping capacity of the concrete trailer pump makes it the core equipment for skyscraper construction. Extending to high altitudes through pipelines, the concrete pouring of floor slabs and columns can be completed quickly, significantly shortening the construction period. In bridge projects, its precise material distribution capacity is particularly suitable for the construction of complex structures such as box beams and bridge piers.

Tunnels and underground projects

For the narrow space and long-distance transportation needs of tunnels, the trailer concrete mixer pump integrates mixing and pumping, without the need for additional loading equipment, saving manpower and space. Its mobility and high-pressure performance can cope with the harsh environment of tunnel lining, water diversion tunnel and other projects.

Rural and small infrastructure

The mixer pump designed for rural areas is low-power (37kW) and easy to operate, which is suitable for rural power grids and small projects. It can not only complete the concrete pouring of house foundations and walls, but also be used for livelihood projects such as farmland water conservancy and road hardening.

Special fields

In water conservancy, hydropower and port construction, the pump can transport large-size aggregates (pebbles 50mm, crushed stones 40mm) to complex terrain; explosion-proof pumps can better meet the safety requirements of special scenes such as mines and coal mines.

Original source: https://www.concrete-pump-cn.com/a/how-much-do-you-know-about-concrete-pump-working-principle.html

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