Chain trenchers are mainly classified according to two dimensions: power source and trencher structure. The core types are tractor-tethered/suspension type and self-propelled type; structurally, they are divided into single-chain scraper type, double-chain type, and chain bucket type.
Chain trenchers can be further divided into various types based on their power source and trencher type, with corresponding manufacturers and intellectual property rights.
Based on power source, they can be divided into tractor-mounted types (such as 15-95 horsepower tractors) and self-propelled types. Based on trencher type, they are mainly divided into chain scraper type (or scraper type) and rotary type.
Major domestic manufacturers include Shandong Lutong Engineering Machinery Co., Ltd.
The field of chain trenchers has several related patents, such as the "Chain Trenching Device" (CN2182823Y) authorized in 1994, and the "A Chain Trenching Machine" patent published in 2024.










