介绍了新型破碎设备——外动颚大破碎比颚式破碎机及该系列产品的技术参数、性能特点；可用一段大破碎比破碎机取代传统流程中的两段或三段破碎，新型破碎设备的研制成功带来了破碎工艺的变革。

A new type crushing equipment - the outer moving jaw crusher with large reduction ratio and its technical parameters, as well as its performance characteristics are introduced. The structural nature of large reduction ratio makes it possible to substitute the two or three stage crushing in the traditional crushing flowsheet by only one stage. That is, the successful development of the new type crushing equipment will bring about the change of the crushing technology.