Track shoe is one of the chassis parts of construction machinery, and it is a kind of vulnerable parts of construction machinery used Now it is commonly used in excavators, bulldozers, crawler cranes, pavers and other construction machinery.

Crawler shoes on construction machinery can be divided into steel and rubber from the material point of view Steel track shoes are mostly used in equipment with large tonnage. Rubber track shoes are mostly used in equipment with small tonnage.

Steel track shoes can be divided into: excavator plates, bulldozer plates, which are the most commonly used steel as raw materials Then there is the wetland board used by bulldozers, commonly known as "triangle board". This is a casting board Now a large number of use of a casting plate is used on the crawler crane the weight of this plate is less tens of kilograms more can reach hundreds of kilograms 2008 Shanghai BMW exhibition of Sany Heavy SC10000 crawler crane plate more than 800 kilograms.