Core Definition Points
Usage: Specifically used to transport ready-mixed concrete (commercial concrete) from the mixing plant to the construction site.
Key Structure: Equipped with a cylindrical mixing drum, with internal spiral blades to continuously mix the concrete during transportation.
Powered by a power take-off device from the truck chassis engine;
Drives a hydraulic system, converting mechanical energy into hydraulic energy;
The hydraulic motor drives a reducer, which finally drives the mixing drum to rotate;
During transportation, the drum rotates forward (1–3 revolutions/minute), and during discharge, it rotates in reverse.
Common Aliases: spiral truck, olive truck, concrete truck, commercial concrete truck.
Classification Methods
According to the water content of the transported concrete:
Wet Type: Transports concrete that has already been mixed with water; most commonly used domestically; must pour within 1.5 hours to avoid early setting.
Dry Type: Transports dry aggregates and cement, with water added at the construction site for mixing; suitable for long-distance transport.
Semi-dry Type: Mixes aggregates, cement, and partial water; water is topped up on-site to complete the mixing.
According to the drum volume
Small: 2–6 m³ (commonly used on narrow urban roads)
Medium: 3–8 m³ (mainstream specification, such as 6 m³)
Large: Over 8 m³ (e.g., 10–16 m³, used for large-scale projects)
Typical Technical Parameters (reference mainstream models)
Rated Load: about 8–10 tons
Gross Vehicle Weight: 15–17 tons
Mixing Drum Speed
Loading: 6–10 rpm
Transportation (mixing): 1–3 rpm
Discharge: 3–14 rpm
Maximum Driving Speed (mixing condition): ≤50 km/h (high center of gravity, prone to rollover if overspeeding)
Cleaning System: Air pressure water supply, used to wash the mixing drum and discharge chute to prevent concrete hardening
