摘要
研制的ＰＥＷＤ４０７５型大破碎比颚式破碎机，经过工业试验和近一年的生产实践证明，该破碎机的处理能力和破碎后的矿石粒度直接入磨及设备运转状态等技术参数均符合设计要求。该机具有破碎比大、体积小、设备配置少、节约能源和成本等优点，有一定的推广应用价值。
The fabrication and application of PEWD4075 Jaw - crusher are studied. By industrial testing and practical application, the service ability and operating condition are proved to meet tile requirement. The ore size are such as can be directly grinded after being crushed. In addition, the crusher boasts of a large reduction ratio, few equipment, power saving, low cost and being small. It can be popularized and widely used.
