Working principle and key components
The core of a concrete mixer truck lies in its rotating mixing drum. During operation, the engine's power is extracted via a power take-off (PTO) to drive a hydraulic pump, converting mechanical energy into hydraulic energy. A hydraulic motor then converts this hydraulic energy back into mechanical energy. A speed reducer decreases the rotational speed and increases the torque, ultimately driving the mixing drum to rotate at a constant speed.
The mixing drum is equipped with continuous spiral blades welded inside. When the drum rotates clockwise, the blades continuously lift and tumble the concrete, achieving mixing and preventing segregation. When unloading is required, the drum rotates counter-clockwise, and the blades push the concrete towards the drum opening, guiding it through the discharge chute to the designated location.
Experienced & Professional
Strong expertise in research, design, and production to meet various project needs.
Reliable Quality
Stringent quality control ensures long-lasting and efficient performance.
Timely Delivery
Capable of completing orders in as little as 7 working days when needed.
Comprehensive Support
Dedicated technical assistance and after-sales service for seamless operation.
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Selection and Operation Points
Choosing the right concrete mixer truck and operating it correctly is crucial for project efficiency and cost.
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Selection Based on Project Requirements
Primarily consider the project scale and construction environment. Large infrastructure projects require large-capacity (e.g., 12m³ or more) rear-discharge or pump trucks; while in urban areas with narrow roads or for maintenance projects, smaller capacity, more flexible front-discharge or smaller mixer trucks should be selected. -
Standardized Operation and Maintenance
Operating procedures must be strictly followed. For example, the mixing drum must be kept at a low speed (usually 2-3 rpm) during transport; there is a strict time limit from loading to unloading (generally no more than 1.5 hours) to prevent initial setting of the concrete; the mixing drum must be thoroughly cleaned after each unloading to prevent concrete clumping. -
Focus on Core Component Maintenance
The drive unit (power take-off, hydraulic system) and mixing drum are key maintenance areas. Ensure the hydraulic oil is clean and change it regularly, and clean the hydraulic oil cooler promptly to prevent overheating. Additionally, the mixing drum must be cleaned after each day's work, and the blade wear must be checked.