Jaw crusher origin and development status

1840s, gold mining boom in North America a significant role in promoting the development of jaw crusher. The mid-19th century, various types of jaw crusher developed and a wide range of applications. The end of the last century, Around the world there are more than 70 different structure of the jaw crusher to obtain a patent.

1858 Sven. Blake (El.Blake) patented, manufacturing the elbows plate jaw crusher, the most common jaw crusher Blake jaw crusher and jaw crusher of the more modern manufacturing single bracket. The jaw crusher, one of the greatest weakness within a work cycle, only half the time.

Since the 1980s, the development of the jaw crusher and improvement achieved certain results. Such as China's crushing expert Professor Wang Hongxun and his students Dingpei Hong master reference "concept of the dynamic nip angle, to development GXPE deep cavity jaw crusher, caused quite a stir in the country. Aircraft compared with the same specifications crusher, in the same working conditions, processing capacity can be increased 20% to 25%, tooth plate life can be increased 1-2 times. The machine uses negative support zero suspension, with a hyperboloid cavity.
Second-generation GXPE250 × 400 negative support the first generation on the basis of the overall improvement to increase the crushing ratio, reducing the product size, the maximum feed particle size of 220mm, the hourly output of 5 ~ 16t, nesting population adjustment range of 10 ~ 40mm, material compressive strength of 300MPa. PEY4060 hydraulic insurance jaw crusher, hydraulic cylinder overload protection device, is to support, hoisted deep crushing chamber. The aircraft maximum feed size is 340mm, the nesting adjust between 30 ~ 100mm production capacity of 10 ~ 40t / h.

Henan Zhengzhou Mining Machinery Co.Ltd operation has developed a PED low detachable jaw crusher. This machine is a suitable for the special conditions of the underground work under the new jaw crusher. Mechanical height is low, the low position of movable jaw and fixed jaw is located between the fixed jaw and the eccentric shaft.
Dowling - Watson Machinery . Rong Jihua senior engineer set many years of practical experience, the design of the largest 1200 × 1500 compound pendulum jaw crusher.

The new listing of the new jaw crusher  equipment earlier, because of its simple structure, sturdy, reliable, maintenance and repair as well as production and construction costs are less, until now, is still widely metallurgical, chemical, building materials, electricity, transportation and other industrial sectors, for the breaking strength in the rough, 147 ~ 245MPa ores and rocks, crushing. In recent years, our factory broken the need of high strength, high hardness, low carbon ferrochrome to meet the metallurgical, mining, construction and industrial sectors, specially developed strong jaw crusher.

Its working principle is: the material from the feed hopper inside the casing, the separation institutions material dispersed into the ambient material. Motor driven eccentric shaft by the triangle belt up and down movement of the movable jaw crushed material, to reach a certain size to enter the rotary chamber. The material in the rotary cavity by the grinding of the rotor and the fixed jaw and broken, the broken material from under the hopper discharge. Expected out of the aircraft by the tightness of bolts and add and subtract shims to adjust the granularity. Using the circumference of the feed, feed range than jaw broken machine, the cutting speed without clogging. Compared with the same specifications of the jaw crusher machine, its production capacity, product size, large crushing ratio, the aircraft production

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