莫氏硬度分十級。中國干燥業還亟待產生具有國際競爭力的大公司和企業集團。中國干燥業現在所擁有的、具有一定規模的企業，在銷售收入、市場占有率、研發能力、管理及銷售水平等多方面與國際巨頭差距明顯。不論按哪種方法，都應該結合本單位生產實際條件制訂。
因為碎石機的檢修周期與許多因素有關，如碎石機檢修質量、作業率、負荷量、礦石強度和大塊礦石多少，以及維護好壞等。此外重型偏心軸亦采用鍛坯進行加工，這一切均使得系列鄂式碎石機具有超凡的可靠性。軸承座采用整體式鑄鋼結構。企業自成立以來，一直本著“黎明創新科學嚴謹不斷追求”的企業理念，堅持“以創新為動力，以質量求生存，以信譽謀發展”的企業精神，緊跟市場導向，打造一流產品。
以過硬的質量，完善的服務，合理的價格來滿足各類用戶的不同需要。
Henan LIMING Heavy Industry Science and Technology Co. LTD which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together. The Headquarter is located in HI-TECH Industry Development Zone of Zhengzhou and covers 80000 m 2. Another workshop in Shangjie Industry Park covers 67000 m 2. Over the more than 30 years, our company adheres to modern scientific management system, precision manufacturing, pioneering and innovation. Now LIMING has become the leader in domestic and oversea machinery manufacturing industry.
LIMING brings a large number of high-qualification talents together. Bai Yinghui, general research and development engineer, is a well-known expert in crushing and grinding area who won the youth medal of technology of the state council and receives special government allowance. LIMING owns an experienced service team, offering the customer free design and professional skill training and live guide for installation and debugging. The company's service networks have spread all over the country. Established client files, and mix the traditional door-to-door service with online service together, complementary the advantages. LIMING has won high recognition from clients.
The company mainly manufactures mobile crushers, stationary crushers, sand-making machines, grinding mills and complete plants that are widely used in mining, construction, highway, bridge, coal, chemical, metallurgy, refractory matter, etc. Product quality is life, and scientific innovation is motive power. LIMING got ISO international quality system certification, European Union CE certification and Russian GOST certification. The company has strong research and development strength and innovation.
LIMING machinery research institute was founded in 2005 which is the most powerful comprehensive technological research institute in the domestic mining machinery industry and provides top scientific research platform for professional personnel. Up to now, LIMING has won 10 national patents, 24 national utility model patents and 3 provincial science and technology achievement awards. The company products remain the international leading level by strengthening international exchanges and cooperation all the time, and has won a wide range of international market, such as Russian, Azerbaijan, Kazakhstan, Turkey, Kuwait, South Africa, Egypt, Vietnam, Malaysia, India, Australia, Korea, Canada and European Union,etc.
Through more than 30 years' hard work, LIMING's staff built supremacy of credibility, excellent quality, service "LIMING" brand, and has made outstanding contributions to the development of mechanical manufacturing industry for China and the whole world.
