There are two kinds of tires for large concrete mixer, which are nylon tyres, and the written words are "oblique tyres", the code is "d" and "one" represents nylon tire; the other is steel wire tire, and the written language is "radial tire", and the international code is "R". Generally, steel wire tyres are used in concrete mixer. For example, a car tire says: p245/45 R18 96V, of which
245表示輪胎的斷麵寬度為245mm，胎麵寬度一般在145-285之間；
245 indicates that the width of the tire section is 245mm, and the tread width is generally 145-285;
45表示輪胎的扁平率為45%（扁平率=輪胎高度/輪胎寬度），一般輪胎的扁平比在30%-80%之間；
45 indicates that the flat rate of the tire is 45% (flat rate = tire height / tire width), and the flat ratio of general tires is between 30% and 80%;
R表示該輪胎為鋼絲胎；
R means that the tire is a steel wire tire;
18表示鋼圈的標準直徑為18英寸（1英寸=25.4mm），鋼圈直徑即輪輞外徑；
18 means the standard diameter of the steel ring is 18 inches (1 inch = 25.4mm), and the diameter of the steel ring is the outer diameter of the rim;
96表示載重指數；
96 is the load index;
V就是該輪胎標記形如：6.00-12，這表示它不是鋼絲胎，而是尼龍胎。這種輪胎一般應用在部分低級的越野車和重型貨車上。其中，輪胎的扁平率越低，輪胎行駛越平穩，操控性越強，但乘坐感覺路天籟彈性不足，振動較大些；
V is the tire marking shape such as 6.00-12, which means it is not a steel tire, but a nylon tire. This kind of tire is generally used in some low-grade off-road vehicles and heavy trucks. Among them, the lower the flat rate of the tire, the more stable the tire driving and the stronger the handling, but the ride feels the road sounds elastic is insufficient and the vibration is larger;
車輛輪胎速度代號最高時速表（km/h）：
Maximum speed meter of vehicle tire speed code (km/h):
M-130、N-140、P-150、Q-160、Q-170、S-180、T-190、U-200、H-210、V-240、W-270、Y-300；
M-130、N-140、P-150、Q-160、Q-170、S-180、T-190、U-200、H-210、V-240、W-270、Y-300；
車輛輪胎載重代號限額表：
Limit table of vehicle tire load code:
80-450kg、81-462kg、82-475kg、83-487kg、84-500kg、85-515kg、86-530kg、87-545kg、88-560kg、9-580kg、90-600kg。
80-450kg、81-462kg、82-475kg、83-487kg、84-500kg、85-515kg、86-530kg、87-545kg、88-560kg、9-580kg、90-600kg。
大型混凝土攪拌機，有的輪胎還含有其他的字母或者符號，是有特殊含義的：“X”表示高壓胎；“C”表示加強型；“B表示斜交胎”；“一”表示低壓胎。M、S分別表示英文Mud和Snow的縮寫，它表示這種輪胎適合於冰雪和泥濘的道路上使用。某些輪胎的胎壁上標有箭頭或OUTER SIDE字樣，它表示輪胎的轉動方向。如果胎壁上畫有一個小雨傘標誌，就表明這種輪胎適合於在雨天或者濕滑路麵上行駛。DOT標記表示這種輪胎通過了美國和加拿大某某運輸部門的認證。大型混凝土攪拌機雖然這些知識不是太熱門，但是在用車的過程中還是能起到大作用的。
Large concrete mixer, some tires also contain other letters or symbols, which have special meanings: "X" means high pressure tire; "C" refers to reinforced type; B refers to diagonal tire "; and" 1 "refers to low pressure tire. M. S is the abbreviation for mud and snow, which means that the tire is suitable for use on snow and muddy roads. Some tires have arrows or outer side on the wall, which indicates the direction of rotation of the tires. If a small umbrella sign is painted on the tyre wall, it indicates that the tire is suitable for driving on rainy days or slippery road. Dot marks indicate that the tire has passed the certification of a certain transportation department in the United States and Canada. Although these knowledge is not too popular, large concrete mixer can play a significant role in the process of using vehicles.
