In recent years, the government has significantly increased its investment in infrastructure development, which has led to a rapid expansion of the concrete machinery market. Among these, concrete pumps have played a crucial role in the booming construction industry. The domestic full-hydraulic two-cylinder concrete pump has evolved from being basic and weak to becoming strong and efficient. As the market warms up, more manufacturers are entering the scene, offering a wide variety of models and products. With so many options available, how can users identify the best performance? What aspects should they focus on when purchasing a high-quality, cost-effective, and high-performance concrete pump? Let’s explore this together.
Starting with technical parameters is essential. A typical concrete pump includes key specifications such as delivery capacity, outlet pressure, motor power, and the type of distribution valve. According to the new national standards, these details can be identified directly from the model number. For example, take the "HBTS60-13-90" concrete pump. Here’s what each part means: HB stands for concrete pump, T indicates it's a drag-type pump, S refers to an S-shaped tube valve (D for butterfly valves, Z for gate valves), 60 represents the maximum theoretical delivery rate in m³/h, 13 is the maximum outlet pressure in MPa, and 90 denotes the motor power in kW.
Concrete pumps are categorized based on their outlet pressure: low-pressure (≤5MPa), medium-pressure (6–10MPa), and high-pressure (>10MPa). Delivery capacity ranges from 20 to 100 m³/h, and most modern pumps offer variable displacement or speed. Users should choose the appropriate pressure level based on the height and distance of the project. Similarly, the delivery volume should match the mixing and feeding capabilities. The type of distribution valve also matters—butterfly valves are ideal for coarse aggregates but may cause higher flow resistance, while S-shaped valves provide smoother flow and better efficiency at higher pressures, making them suitable for high-rise buildings.
Motor power is a critical factor that determines both the pressure and delivery capacity. When the motor power remains constant, increasing the pressure reduces the delivery volume, and vice versa. To balance both, most pumps use constant power piston systems. This allows the pump to adjust its output based on the pressure requirements. If a user needs both high pressure and large delivery, the only solution is to increase the motor power. That’s why the new national standard introduced the concept of the "capacity index" (measured in MPa·m³/h), which reflects the pump’s ability to deliver under different pressure conditions.
Many manufacturers now incorporate high/low voltage switching functions to meet varying construction demands. For instance, the HBTS60-13-90 model can switch between a high delivery volume (63 m³/h) at lower pressure (7.7 MPa) or a smaller volume (37 m³/h) at higher pressure (13 MPa), allowing flexibility for different applications.
The hydraulic pump is the "heart" of the concrete pump. It comes in various types, including gear pumps, vane pumps, and piston pumps. Gear pumps are cost-effective but limited in pressure, often used in low-pressure systems. Piston pumps, especially those with an axial or swash plate design, are widely used due to their high efficiency and adaptability. Brands like Germany’s Rexroth and Japan’s Kawasaki produce high-quality piston pumps, while domestic brands like Guiyang also offer reliable options.
Hydraulic valves act as the "assistant" to the pump, controlling flow and pressure. High-quality valves from companies like Hawe, Rexroth, Eaton, and Atos ensure reliability. Poor valve performance can lead to system failure, so selecting top-tier components is essential.
Electrical components, such as contactors, circuit breakers, and relays, control the pump’s operation. While domestic components are cheaper, imported brands like Schneider, Siemens, and Omron offer better reliability. Some manufacturers now use PLCs to reduce mechanical contacts, improve automation, and simplify fault detection.
Finally, brand reputation, research and development capability, and after-sales service play a significant role. Established companies with long production histories and strong support networks provide greater peace of mind. For example, Jiajiang Pump has maintained a strong presence in the market for over two decades, ensuring continued availability of spare parts.
In conclusion, buying a concrete pump involves careful consideration of technical specifications, component quality, brand reputation, and after-sales support. It’s not just about choosing the right model—it’s about selecting a reliable partner that can meet your long-term needs.
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