Stone Crusher,Mobile Crusher,Grinding Mill,Production Line

In recent years, high speed rail construction springs up in China. You know, China has a pretty vast territory and lowly developed economy. Thus, high-speed rail without doubt meets people’s travel needs. At the same time, its fare is cheaper than that of airplanes, which greatly ensure enough clients.

In high-speed rail construction, crushing equipments play a significant role. As a lot of sand and concrete aggregate materials with different required shape are needed, impact crushers are the best choice to crusher stones into needed sizes Read more…

Mining machines are designed with the people-oriented principle. By considering the harmony between people, machines, and environment, manufacturers must take necessary measures to undertake safe design, improve operating environment, lower vibration and noise, and enhance operating comfort.

First, security of mining machines is the guarantee of safe production and staff’s life. Mining machines’ safety features could describe from two aspects: security of mining machines and its reliability. Read more…

What are the technical details of KEFID jaw crusher PE900X1200 and KEFID European tech jaw crusher JC840x1100?

Reply:

1.Motor size and Brand

a. For PE900X1200 jaw crusher, as to your requirement, the motor will be changed to 132KW. The model is JR127-8, brand is Hebei Xin Si Da. The brand is not fixed.
b. For JC840X1100 jaw crusher, motor model is Y2-315L2-6, 132KW. Brand is Lu’an Jianghuai; The brand is not fixed.

2. Bearing

a. For PE900X1200, its model is 23722CA/W33, 23180CA/W33 Read more…

A mine refers to the site of such an excavation, with its surface buildings, elevator shafts, and equipment and an excavation in the earth from which ore or minerals can be extracted. A quarry is an open excavation or pit from which stone is obtained by digging, cutting, or blasting or a rich or productive source.

In fact, a quarry is a type of open-pit mine, one of several different kinds of mines, from which rock or minerals are extracted. Quarries are generally used for extracting building materials, such as dimension stone, construction aggregate, riprap, sand, and gravel. They are often collocated with Read more…

For China mining machinery industry, the 1990s is the most difficult period. Only after 1999, it began to recover and ushered a new developmental opportunity. However, at present its technological base is still weak. Experts suggest that China mining machinery industry should seize opportunities to accelerate development through research and technical innovation.

There are two major problems for China mining machinery industry. First, the overall strength of mining machinery industry is not strong and could not meet high-standard requirements. Second, there are a lot of problems in Read more…

Americans EW Blake (Black) designed and manufactured the world’s first jaw crusher.
Its structure in the form of dual-elbow-plate (simple oscillating type) jaw crusher.

The crushing machine is the modern steam engine and electrical power machinery, etc., after a gradual improvement and extension have created. Appeared in 1806 with the steam-driven roller crusher; in 1858, the United States, Blake invented the broken rock jaw crusher; in 1878, the United States has developed with continuous action cycles crusher broken, its production efficiency is higher than for intermittent Broken action jaw crusher; in 1895, the United States, William invented a low energy impact crusher.

Americans EW Blake (Black) designed and manufactured the world’s first jaw crusher. Its structure in the form of dual-elbow-plate (simple oscillating type) jaw crusher. As the jaw crusher has a simple structure, easy to manufacture, reliable operation, convenient maintenance and the advantages of smaller size and height. Is still widely used in crushing hard, medium hard, soft ores and a variety of materials, such as various minerals, solvents, slag, building stone, marble and so on. Read more…

As we all know, the Brazil has win the rights to host the 2014 World Champion and the 2016 Olympic Games. In the next few years, there will be a new upsurge in Construction and mining.

Kefid Machinery attend this Expo and the number is B49 in Imigrantes Exhibition Center of Sao Paulo, from August 10 to August 13. Read more…

On July 28, 2011, a stone crushing plant of Kefid with the capacity of 250 T/H has been delivered to Bejaia, a port of Algeria. This stationary stone processing production line totally experiences three-times crushing and includes four major crushing machines, together with a vibrating feeder and a vibrating screen.

Primary crushing consists of a ZSW1100x4200 vibrating feeder and a PE750x1060 jaw crusher. Secondary crushing is made up of a PF1315 impact crusher and a PF1214 impact crusher Read more…

On July 25, 2011, five sets of Kefid mobile crushing plant are delivered after strictly inspection. There are two sets of them are purchased by our Russia customer and the other three sets are delivered to Algeria. The models of the Russia part are YG114E710 and Y3S186HP220, the others are YG114E710, Y4S2160FW1315 and Y3S216VSI92.

Kefid Machinery has sold many sets of mobile crusher to Russia and Algeria, this time Read more…

I am Abim Jain, a quarry operator from Australia, meanwhile I am also a client of  Zhengzhou Kefid Machinery Co., LTD.

We have in possession of a series of crushers including jaw crusher, vibrating feeder, impact crusher for half a year. A few days ago, the jaw crusher has a failure, our technician can’t market well. So we get in touch with the Kefid telling them the details. Their reply makes us relax, they said their service idea is create more value to customers and service the customers heart and soul. They would apply professional knowledge and full global service capacity to ensure the best results for the customers’ business. Just one day later, two technicians working in the Algeria office appointed by Kefid called at our site. They spareon effort to repair the machine in cold weather and finished it for only 2 hours. Read more…