采煤机（Coal Shearer）是现代化煤矿开采中的核心设备，主要用于长壁工作面（Longwall Face）的煤炭切割和采集。它通过旋转的截割滚筒（Cutting Drum）切割煤层，并将切割下来的煤炭通过刮板输送机（AFC, Armored Face Conveyor）运出工作面。采煤机具有高效、自动化程度高、适应性强等特点，能够适应不同厚度和硬度的煤层。其主要组成部分包括截割部、牵引部、电气控制系统和液压系统等。采煤机的应用显著提高了煤矿开采的效率和安全性，降低了人工劳动强度，是现代煤矿高效生产的关键设备。

The Coal Shearer is a core piece of equipment in modern coal mining, primarily used for cutting and extracting coal at longwall faces. It employs rotating cutting drums to slice through the coal seam, and the cut coal is transported out of the working face via an armored face conveyor (AFC). The coal shearer is known for its high efficiency, advanced automation, and strong adaptability, making it suitable for coal seams of varying thicknesses and hardness levels. Its main components include the cutting unit, traction unit, electrical control system, and hydraulic system. The application of coal shearers significantly enhances mining efficiency and safety, reduces manual labor intensity, and is a critical asset for efficient production in modern coal mines.