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ISO Broken

Jaw crusher for crushing ore and medium-coarse-grained bulk materials, widely used in mining, smelting, building material, highway, railway, water conservancy and chemical crusherindustry jaw.The maximum compressive strength of the material being broken to 300MPa. The crushing ratio, even coexistence, simple structure, reliable operation, easy maintenance, low operating costs. Sand production line, stone consists of vibrating feeder evenly sent to the jaw crusher rough broken, coarse broken material by belt conveyor fed into the crushing jaw crusher for further crushing, crushing jaw crusher the Rotary drier third procedure, a small jaw crusher broken stone into the shaker screening two stones, to meet the Sand feed size stones into the sand making sand, another part of the expected return and then into thin broken jaw crusher can ball mill reach 10 mm 300 mm range fineness, and adjust according to customer demand. Silah machinery produced by crushing jaw crusher on the simple pendulum, compound pendulum jaw crusher made great improvements, a number of movable jaw and a few eccentric shaft structure, run – time through each of the moving jaw crushed material, thereby reducing the load of the machine, and easy to start, more stable operation, low energy consumption. Robotics expert has plenty of information regarding this issue. Currently there are compound pendulum ball crushing jaw crusher, jaw crusher and simple pendulum crushing mill, its working principle and prototype crusher is basically the same, but increase the length of the feed inlet, the crushing ratio is up to – 1. modified compound pendulum crushing function of crushing compression strength not more than 0MPa ore and rock crushing jaw crusher is mainly used for the hardness of stone crushing, such as granite, basalt, river gravel secondary crushing. Silah machinery produced by crushing jaw crusher is the first choice for your mining gravel sand production line equipment, broken particle size uniformity, high yield, structural stability, durability, widely used in mining, crusher, sand, product quality through ISO001 system certification, quality assurance, price concessions, provides a full set of wearing parts of crushing jaw crusher. We network Star provide Professional technology, excellent product quality and intimate after-sales service when you purchase ball mill and other products from our company.. Viacom does not necessarily agree.

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First Sound Meter

50Th anniversary of the first sound meter in the world in 2010 we celebrate the 50 anniversary of the model 2203, the father of all sound level meters. The sound meter is 50 years old in 2010 we celebrate the 50 anniversary of the model 2203, the father of all sound level meters. It was the first sound meter portable precision-based transistors in the world. It was manufactured for 21 years and had a few sales record of 17,300 units. If add their improved versions, models 2204 (Impulsiva time constant) and 2209 (peak detector), came to a total of 32,700 units.

This is the story of the first laptop in the world sound level meter, as was recorded in files and as they were told us who lived it. For half a century, product presentations were no more than a humildecomunicado on the news section of the factory on the last page of the Revistatecnica of Bruel & Kjar. Number 3 in 1960 included the Bulletin which is reproduced above. Don SLM our expert design of sound level meters for decades, Peter Hedegaard, gives us this explanation of how evolved the portable sound meter: the model 2203 was the first portable sound meter of Bruel & Kjar. I am not who to say who was the father of this special design, but it is likely that both P.V.

Bruel as GunnarRasmussen had something to see, but the final design is attributed to Kay Moller Petersen. What was special was that design the front in a cone shape, which made it possible to place the microphone in the housing without its acoustics would be affected significantly. Put another way: you could measure, hold and manage the sound level meter with one hand.A reissue of number 183, October 1970 Mobilia appeared as follows (translated from Danish): Bruel & Kjar was on the verge of developing a small manual sound level meter for use in factories, the traffic on the street and in other locations in which need to point to targets Mobile.