Aluminum can recycling is the process by which scrap aluminium can be reused in products after its initial production.
The process involves simply remelting the metal, which is far less expensive and energy intensive than creating new aluminum through the electrolysis of aluminum which must first be mined from bauxite ore and then refined using the Bayer process Recycling scrap aluminum requires only 5% of the energy used to make new aluminium.For this reason, approximately 31% of all aluminum produced in the from recycled scrap. existing increasing % of cans recycled in today scenario our country is facing huge difficulty in recycling of soft metal like (aluminum cans).now a days it is becomes the backbone of industrial activity to delivery their product to there customer. for crushing of cans manual operation is carried out which is time consuming and also fatigue to operator . Also various machines are available like hydraulic, pneumatic, and mechanical type machines but these machines are very costly, large in size, requires attention of operator. In order to solve this problem we are designing can crusher machine using scotch mechanism having multi(two side) crushing ability. >The main advantages is that even unskilled person can easily handle it and we can achieve multi crushing ability at a low cost. aluminum soda cans for easier storage in recycling bins. While most recyclers don’t require you to crush cans, if you do recycle a lot, your normal bin may fill up quickly. The can crusher gives you extra space by flattening either single or multiple cans. Reciprocating motion mechanism, converting the linear motion of a slider into rotational motion or vice versa.The piston other reciprocating part is directly coupled to a sliding with a slot that engages a pin on the rotating part. The shape of the motion of the piston is a pure sine wave over time given a constant rotational speed.The inversion is obtained by fixing either the . orThis mechanism is used for converting rotary motion into a reciprocating motion. 
The inversion is obtained by fixing either the . or Now as the motor rotates the motor is having a smaller pulley connected to its shaft ,the smaller pulley through the belt is connected to secondary pulley which rotates it .There is another pulley which is connected to the main pulley through belt which also rotates it.As the main pulley rotates it also rotates the main shaft which in turn rotates the disk and the whole mechanism starts working.When the disk rotates the collar also moves with it which moves the slotted plate left and right and the rods which are connected to the slotted plate also start to reciprocate and the pads connected to the rods crush the cans when the cans comes in the slot on the two extreme corners of the stand The crushed cans once crushed will pass through the rectangular slots provided and go into the waste bins.From our project we conclude that it crushes the cans satisfactorily in very less time and that is why It can be used in mass production.By using CRANK Mechanism we have successfully made a can crusher.