Take these models as an example to introduce, 320D, ZX200-3G, PC200-8, DH215LC-7, I believe that everyone will understand what these letters and numbers mean after the explanation.
Similarly, the letters in front of the ** brand excavator represent the manufacturer's excavator code, Komatsu "PC" is the excavator, "WA" is the loader, and "D" is the bulldozer.
Hitachi's excavator codename is "ZX", Doosan's excavator codename is "DH", Kobelco is "SK", and the first letter of the **brand excavator model indicates the meaning of the excavator.
After finishing the previous letter, it should be the next digit "320D", what does 20 mean? 20 represents the tonnage of the excavator. The tonnage of the excavator is 20 tons. In PC200-8, 200 means 20 tons. In DH215LC-7, 215 means 21.5 tons, and so on.
320D behind the letter D indicates which series of products, Caterpillar's latest series should be E series products.
These are basically the basic composition of an excavator model, representing the numbers or letters of the excavator + the tonnage of the excavator + the series of excavators / generations of excavators.
Symbol-add numbers (such as -7, -9, etc.)
日本和韩国的汽车品牌和国内挖掘机模型通常可以旁边的标志,这表明这个产品的第一代模型,如8小松PC200-8表明它是小松的第八代模型的7 Doosan DH300LC-7表明它是斗山的第七代模型。当然，国内很多挖掘机生产厂家的历史只有10年，把自己的挖掘机命名为-7或-8纯属“跟风”。
The letter L. Many excavator models carry the word "L". This L refers to the "extended crawler track". The purpose is to increase the contact area between the crawler track and the ground. It is generally used for soft ground construction.
letters LC. LC is a more common symbol in excavators. All brands have "LC" style excavators, such as Komatsu PC200LC-8, Doosan DX300LC-7, Yuchai YC230LC-8, Kobelco SK350LC-8 and so on.
Here "LC" means that this model uses widened and long crawler tracks, the same purpose is to increase the contact area with the ground, generally used in soft ground construction conditions.
The letter H. In the excavator model of Hitachi Construction Machinery, you can often see a logo similar to "ZX360H-3", where "H" indicates a heavy-duty type, which is generally used in mining conditions. In the products of Hitachi Construction Machinery, the H-type adopts a rotary platform and a lower walking body with increased strength, and is equipped with a rock bucket and a front working device as standard.
The letter K. The letter "K" also appears in Hitachi Construction Machinery's excavator product models, such as "ZX210K-3" and "ZX330K-3", where "K" indicates a dismantling type, and the K-type excavator is equipped with a helmet and front protection device to prevent Falling debris falls into the cab and is equipped with a lower travel protection device to prevent metal from entering the track.