The concrete mixer truck mainly consists of a chassis and an upper assembly, which can be simply divided into ten parts: chassis system, hydraulic transmission system, mixing tank, discharge system, cleaning system, sub-frame, control system, support wheel system, feeding system, and circuit system.
1. Chassis system: The main component of the mixer truck, the entire transportation function of the concrete mixer truck is realized by the chassis.
2. Hydraulic transmission system: Converts the engine power extracted by the power take-off into hydraulic energy (displacement and pressure), which is then output as mechanical energy (speed and torque) by the motor, providing power for the rotation of the mixing drum.
3. Mixing tank: The mixing drum is the key component of the entire mixing transport vehicle, serving as a container for storing concrete and playing a decisive role in preventing concrete from solidifying and segregating. The interior of the tank has blades that mainly serve the functions of mixing and guiding the material.
4. Discharge system: Mainly consists of the main discharge trough, auxiliary discharge trough, locking rod, etc. The auxiliary discharge trough serves to extend the length of the main discharge trough.

5. Cleaning system: The cleaning system mainly consists of a pressure water tank, water gun, water pipe, valve, etc. It uses air pressure for water supply, mainly to wash the hopper after loading and to wash the mixing drum and discharge trough after discharging, preventing concrete adhesion.

6. Sub-frame: The sub-frame of the mixer truck is the main load-bearing part, and almost all the load during operation is supported by it and transmitted to the chassis. The sub-frame also helps to alleviate the impact load caused by road bumps and deceleration. The entire sub-frame consists of the main beam, front support frame, and rear support frame.

7. Control system: The control system consists of a controller, linkage shaft, flexible shaft, and connecting rod mechanism, mainly controlling the speed and rotation direction of the mixing drum.

8. Support wheel system: The part where the rear of the mixing tank connects to the sub-frame, mainly serving to support the drum body.

9. Feeding system: Mainly consists of the feeding hopper and support frame. The feeding hopper is subject to significant impact wear, so the material is required to have good wear resistance, and the support frame should help reduce the impact force.

10. Circuit system: Refers to the entire circuit of the mixer truck, including the tail lights, side marker lights, display lights, cooling fan motor, etc.

Vehicle warranty conditions and items

1. Chassis section
For chassis services, users should follow the requirements of the chassis manufacturer's quality assurance manual and go to the local chassis manufacturer's service station for running in maintenance and mileage maintenance. The maintenance conditions and items should be carried out according to the chassis manufacturer's regulations. If there is a problem, you can go to the chassis service station for maintenance with a valid quality warranty manual (which has undergone maintenance and mileage maintenance according to regulations and stamped with the service station seal). If quality problems occur due to failure to go to the chassis manufacturer's service station for running in maintenance and mileage warranty, the consequences shall be borne by the user themselves
2. Modification section
If the modified parts (tank installation, hydraulic system) are damaged due to product quality issues within one year from the date of purchase by the user, free warranty will be provided (except for special provisions below).
(1) Hydraulic oil filter element, 0-type sealing ring and other consumables are not within the scope of free warranty.
(2) Free six-month warranty for operating flexible axles and tugboats.
(3) For products outside the warranty period, you can contact the nearest office or service station, and all costs will be borne by the user.
(4) For the parts that have undergone quality warranty, repair is the main focus, and for those that cannot be repaired, the smallest unit of damaged parts should be replaced to solve the problem.
(5) Products that have not undergone normal maintenance and upkeep will not be covered by warranty if they malfunction.
3. Service Commitment
(1) Promise to provide users with a clear response on the same day as receiving service information from them.
(2) For the modification part, if it is deemed necessary to provide on-site service to the user, we promise to arrive at the user's site within 24 hours within 500 kilometers (from various service stations, the same below). 500-1000 kilometers, arrive within 36 hours.
(3) The main methods of conducting a user visit once every 3 to 6 months after using the product are telephone access, communication access, and on-site visits by personnel.
(4) We will provide training to users on the operation, maintenance, and precautions of the modified parts.

The company is a car modification enterprise licensed by the Ministry of Industry and Information Technology. It was established in April 2013 and is located in Zengdu Economic Development Zone, Suizhou City, Hubei Province, the hometown of Yan Emperor Shennong and the hometown of ancient music and bells. The company mainly engages in the research and manufacturing of various special vehicles and automotive parts. The leading products include various specialized vehicles such as concrete mixer truck series, sanitation truck series, box type transport truck series, flatbed truck series, etc. The company is registered with the Ministry of Industry and Information Technology, has the qualification for vehicle design and manufacturing, the trademark is "Huadao" brand, and the announcement code is "LTC". The company has established a sound quality system and 3C quality system. The product qualification rate reaches over 99.5%.