SWR220H is equipped with Cummins 6BTA5.9 diesel engine, which has a large power storage. It adopts the hydraulic all-wheel traction transmission mode and has a variable-frequency variable-amplitude rapping device, Sauer/Rexroth planetary reductor, and built-in wet multi-plate brakes. When fuel is off, braking is automatically applied, so it is safe and reliable. It has a high-strength fully closed driver's cabin. Besides, there is an optional digital display-type compactness detector so as to guarantee the quality of compacting.