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The new Sand maker is a new type of equipment followed Impact crusher , the third generation Sand making machine , the sixth generation sand maker, pebbles Sand making machine. It is also an innovative product, and the new sand maker opened its independent performance and features according to new demand of the equipment for infrastructure projects. Therefore, new sand maker has become one of the important mining equipmentin the feed of infrastructural projects. The production of concrete aggregate is indispensable gravel aggregate raw material for infrastructure projects, so both in terms of physics or engineering, sand making production of aggregate will directly affect the quality of construction work.Chute feeder, also known as reciprocating or oscillating feeder machine, it is the storage mine shafts nesting feeding equipment that applicated in the earlier times . Its types are various,the common features of these types are the material layer height adjustment ram; an input chute feeding plate is equipped at the underpart of the feeding chute .

Its different point is the feed plate angle, the general type is the certain inclined angle (less than the static angle of repose of the material) . The feed board action is pided into Reciprocating, jitter and swing and the other types ,the transmission mechanism are crank rotary.The Vibrating feeder consists of vibrating frame, spring, vibrator, motor vibrating device and motor. The vibrator is made of two fixed eccentric shafts whose gears are jogged. When installation, the two gears must be jogged according to the sign. Through drive of the motor, the two eccentric shafts start rotating to produce a linear huge power which forces the feeder to vibrate. Through the vibration, The materials will slip and sling on the funnel, moving forward, when the materials pass the screening part, smaller parts will fall down, avoiding the further crushing, so screening purpose can be reached.

Types of feeding systems:Bowl feeders: consists of a bowl top with a spiral track inside the bowl. The component parts are delivered from the bottom of the bowl feeder up the track into the top of the feeder as the bowl vibrates. The parts are the positioned in the proper position. These parts are usually then fed on to a vibratory or air trackCentrifugal feeders: also referred as ‘rotary feeders’, have a conical central driven rotor surrounded by a circular bowl wall. The feeder separate component parts utilizing rotary force and the parts revolve with high speed and are pulled to the outside of the bowl.Step feeders: The component parts are collected from the hopper by elevating plates, pre-sorted and fed until they reach the desired transfer height. Key features of step feeder are that it operates quietly and without vibration.

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