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Small jaw crusher has wide application in a variety of industries like construction materials ready mix concrete plants for sale, chemistry, metallurgy, bridge construction and road construction. And contains end up being the indispensable equipment during these industries. You will find many factors impacting on the significant efficiency of small jaw crusher, however concrete batching plant on sale, the overload problem is easily the most common one.Henan Daswell Machinery is a professional manufacturer of mining machine for almost 30 years in China. We are dedicated to supplying our customers with best service and products, our major products include:Diesel mortar mixer,concrete batching plant,SICOMA Planetary Concrete Mixer,If you are interested in our products, please contact us freely: sales@daswell.com In the operation cement batch plant, it's quite common for customers to satisfy such situation that harmful particles go into the crushing cavity and also the drill and bucket teeth find yourself in trouble all of a sudden which could cause serious overload instantly for that crusher. At this time around, if there's no overload protection device, the primary spares from the crusher is going to be broken inevitably. In market, the frequently-used overload protection device of small jaw crusher includes hydraulic safety device, hydraulic pneumatic insurance device, bracket-damaged protection tool and flywheel torque insurance device. And in the following paragraphs, we'll mainly introduce the final two kinds. 1. Bracket-damaged overload protection device. This overload protection device functions by setting a place with low intensity and simple to identify around the bracket. So when the small jaw crusher meets the overload problem, this time will break because of the dramatically rising stress and also the transmission of energy is going to be cut lower instantly due to the fracture of bracket in order to steer clear of the harm to the primary spares. However mobile crusher, the bracket is generally made from wrought iron to ensure that it cannot calculate and control the mechanical wave motility. Therefore, you will find even the problem the machine is overload and also the protection device doesn’t work. Additionally, when the bracket is damaged, the utilization needs to stop operating and do a little necessary cleaning and repacking work which might interrupt the operation flow. 2. Flywheel torque insurance device. This type of protection device consists of hydraulic friction clutch, spring friction clutch and safety pin. This product has more programs around the pendulum jaw crusher. The primary purpose of friction clutch would be to make certain as soon as of pressure within the normal range. When the crusher is overload, it'll achieve towards the critical torque and also at this time around, the flywheel will slide freely around the axis which could avoid the moment of pressure to exceed the limited value. Nonetheless, some exterior conditions for example temperature may also restrict the significant longevity of the security device. And when the crusher is overload, the next work for example maintenance and cleaning is very cumbersome.