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Innovative Usage of Vibratory Feeders - Vibratory Bowl Feeder for small balls

by Monish Shete 5. October 2015 04:18

Elscint recently manufactured a special and small vibratory bowl feeder for feeding of small balls having diameter dia 4.76 mm. The customer required three outlets with gravity tubes for each of them. Balls have a tendency to roll back in a bowl feeder and do not move up the track. However, in the special type of bowl designed by Elscint, this does not take place. A bowl having diameter 250 mm was fabricated and a speed of 200 balls per minute per outlet was achieved. There being 3 outlets, proper overflow was required for each of the outlets and the same was provided by making a special arrangement. The tooling ensured that even the last ball got fed. Flexible tubes of 1 mtr. Length were attached to each of the outlets for connection to the customer fixture.

Innovative Usage of Vibratory Feeders – Feeding of Large Rings

by Monish Shete 20. September 2015 05:26

Elscint recently manufactured a vibratory bowl feeder for large rings. There were two types of rings, both having diameter 66.50 x 28.50 mm ht. However, the internal as well as some external dimensions of both these rings were different. As the rings were large and heavy, Elscint recommended its Model 630 with a stainless steel bowl. The rings required orientation with respect to their face. These was ensured in the bowl itself. Further, the rings being metallic and heavy, they made a huge noise. Hence, Elscint provided Elscinthane PU coating to ensure that there was no metal to metal contact between the rings and the bowl, thus reducing the noise level drastically from 85 db to less than 80 db. Further, a circular noise enclosure lined with acoustic foam was provided to further dampen the noise and get it below 70 db. The scope of supply further consisted of a gravity chute which would convey the rings upto the conveyor of the customer and a stand with (+/-) 50 mm height adjustment.



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Innovative Usage of Vibratory Feeders - Elscint Vibratory Bowl Feeder for feeding of aluminium caps

by Monish Shete 13. September 2015 08:38

Elscint recently manufactured a vibratory bowl feeder for feeding of aluminum caps of two sizes. The dimensions of the caps were dia 18.2 x 15 mm ht. and dia 15.50 x 12.80 mm ht. respectively. Elscint recommended its Model 250 with cast aluminium bowl with Elscinthane PU coating. Changeover tooling was provided to ensure that each of these caps were fed in the correct orientation without any problem. The required speed was 60 parts per minute. However Elscint achieved a speed of more than 200 caps per minute in the correct orientation. Further proper overflow arrangement was provided so that even if the customer did not provided a sensor in his chute, the caps would keep falling back into the bowl.

Innovative Usage of Vibratory Feeders - Elscint Vibratory Bowl Feeder for big Plastic Caps

by Monish Shete 6. September 2015 08:23

Elscint recently manufactured a bowl feeder for big plastic caps. There were two types of caps, one having diameter 51 mm x 50 m ht.  while the other was having diameter 47 x 33 mm ht. Both the caps need to be fed in open side facing ground orientation at a speed of 120 caps per minute. The scope of supply was a vibratory bowl feeder, gravity chute with auto-switch off mechanism and a single post stand to mount the above. There was a tendency for the top lead of one of the caps of coming out. Hence, Elscint provided an arrangement to remove the caps and leads which were disengaged and a tray with mounting arrangement was provided to collect the same. The dimensions of the caps were such that they would come in axial direction and hence airjets were required for ensuring that they change their orientation. Further, the percentage of  wrongly oriented caps was almost 30% and hence, instead of removing them by allowing them to fall back into the bowl, Elscint took them forward in another track and twisted them. Thereafter, they joined back into the main track. This helped achieve the required speed.



Elscint delivers 2 outlet plastic part Vibratory Bowl Feeder for Plastic parts to Switzerland

by Monish Shete 23. August 2015 11:19

Elscint recently manufactured a vibratory bowl feeder for feeding of plastic douser cover for a customer in Switzerland. The requirement was to feed the parts at a speed of 44 parts per minute per outlet in a correctly oriented condition. The customer already had a German bowl feeder which was doing the job at a speed of around 50 parts per minute per outlet with the use of air jets for orientation. However, Elscint managed to achieve a speed of 90 parts per minute per outlet without the use of air for orientation. The part was assembled in a medical device and hence the requirement was very stringent. Elscint provided outer fixing for the bowl to ensure that there was no screw inside the bowl. Further the covers of the linear tracks were to be fixed with hex screws. The linear track covers too were to be fixed with easily removable screws. Additionally, there was a requirement for a gate for easily empting the bowl feeder. All the material for manufacturing was to be in stainless steel with the mounting plate in aluminium. The vibratory bowl feeder as well as the linear vibrator too was covered in stainless steel from all sides. The controller provided was a digital one, namely EMCP12 which combines controllers for vibratory bowl feeder, linear vibrator and hopper in a single box with programming facility. Elscint Model 250D EV was used along with Linear Vibrator Model Elscint I. You can watch the video of this bowl feeder for feeding of the plastic douser

Innovative Usage of Vibratory Feeders – Feeding of heavy castings

by Monish Shete 16. August 2015 10:21

Elscint recently manufactured a vibratory parts feeder for a very heavy CI casting. The cast iron casting was not machined and had a weight of 300 gms. The requirement was to orient the parts with respect to one side being up and feed them onto a gravity chute wherein they would be punched on one side. Thereafter the same were to be taken forward onto a vibrating track with holes to ensure that the residual oil in the castings was removed. Elscint


Elscint recommended Model 400 HD vibratory drive with a stainless steel bowl with a diameter of almost 850 mm. This model has a capacity of 40 kgs and hence more than 100 parts could be accommodated in the bowl. The part being heavy and metallic, a lot of noise was expected and hence, Elscint provided Elscinthane polyurethane coating on the complete bowl including the tooling parts to ensure that the noise level was minimized. Elscinthane polyurethane lining has not only a very high life but also ensures longer life for the bowl. Further it has excellent dampening properties, reducing the noise level drastically. The parts being oily, a rough texture was given for the Elscinthane PU coating to ensure that even the oily components move forward with ease. As mentioned above, a gravity chute with auto-switch off mechanism and Elscint’s patented pneumatic escapement was provided with a vibrating tray after the parts were singulated. The complete system was mounted on a stand with noise dampening leveling screws. 

Innovative Usage of Vibratory Feeders – Feeding system for feeding washers to centreless grinding machine

by Monish Shete 5. August 2015 22:21

Elscint recently supplied three feeding systems for feeding of flat washers from dia 25 mm to dia 70 mm and having thickness of 1.5 mm to 6 mm for feeding to centerless grinding machines. Due to the wide variation between the washer sizes, the customer required an “X” adjustment of 100 mm. Hence, Elscint provided its standard 100 mm “X” Adjustment along with a “Z” or height adjustment of (+/-) 125 mm. Another requirement was that the washers should be pushed into the grinding machine and the space available for the feeder was almost 800 mm away from the machine work rest. Therefore, Elscint supplied a 800 mm long belt conveyor with a variable frequency drive to ensure that the washers are carried forward and further pushed into the work rest as per the client requirement. The complete system consisted of a control panel with 3 phase input supply and a sensor on the conveyor which ensured that the vibratory bowl feeder switched on / off once the conveyor belt was full of washers. One system was supplied intially and the customer used it for more than 3 months. After he was completely satisfied with the performance of the same, the balance two were supplied. This feeding equipment resulted in an increased productivity of almost 25% for the customer.



Innovative Usage of Vibratory Feeders -Elscint Vibratory feeding systems for feeding Uranium Pallets

by Monish Shete 27. July 2015 02:08

Elscint recently manufactured two sets of vibratory feeding systems for feeding of uranium pallets. There were two bowl feeders per set, one to feed dia 5.6 x 6 mm pallets while the other was for feeding of dia 5.6 x 7 mm pallets. One type of pallet was to run at one time. Thereafter, they were to move on a 1500 mm long linear track. However, the first track was of 1100 mm length and the second, mounted on a separate linear vibrator was to be of 400 mm length. The first track was laser marked with a scale on both sides to ensure that the operator knows at what level the pallets were filled. There were provisions made for fixing stoppers and gauges at various points as per the customer request. Further, for ease of operator usage, the two bowl feeders were kept on an X-Y Slide provided with a handle to ensure ease of movement / changeover. The uranium pallets being radioactive, the complete system was to be kept in an enclosure with a maximum opening of 220 x 220 mm and hence, one more requirement was to ensure that the dimensions of the equipment were such that the complete unit, in semi-assembled state, would fit in the above mentioned opening. The electrical panel was housed in a separate control box with a foot pedal provided for stopping of the equipment. 

Innovative Usage of Vibratory Feeders - Elscint Vibratory Bowl Feeder for feeding plastic rivets in 6 rows

by Monish Shete 13. July 2015 11:40

Elscint recently manufactured a vibratory bowl feeder for feeding of plastic rivets in 6 rows. The rivets were small ones, having dia 10.60 mm x tail dia 6.40 mm x 12.30 mm ht. The requirement was to feed the rivets in 6 rows at a centre distance of 50.47 mm at various uneven points at a speed of 60 parts per minute per row. Elscint recommended its Model 400 HD with Linear Vibrator Model Elscint II HD. Model 400 HD has a bowl diameter of more than 700 mm ensuring a lot of loading capacity, eliminating the need of a separate hopper and level control. A speed of between 60 to 120 parts was observed in the various rows. A major requirement in case of multiple outlets is that there should be proper overflow arrangement to ensure that once a particular track is full, the excess rivets are either diverted to another track or fall back into the bowl. Elscint ensured that this was taken care off. The rivets being white in colour, Elscinthane coating was provided on the bowl to ensure that they do not get coloured or dirty during usage in the stainless steel bowl. The equipment was supplied to a customer in Canada and hence was made to work on 110 V / 60 Hz input power. Confirmation videos were sent to the customer for his approval and then the system was packed and dispatched by air freight mode to Canada. 

Elscint completes 8 Vibratory Bowl Feeder order for a machine builder

by Monish Shete 6. July 2015 08:58

Elscint recently completed an eight vibratory bowl feeder order from a reputed machine builder. The machine builder was building a machine to assembly 12 parts of a faucet. All the parts were of plastic and of various shapes and sizes. Top cap and certain other parts were easy to orient but some like the “main body” and “nozzle” were most difficult as there was no way to hold the same. Further, along with each bowl feeder, a linear track of suitable length was supplied with auto-switch off mechanism dn mounting arrangement. The customer was mounting all the bowl feeders on his machine and hence each one was supplied on a base plate. A non-vibrating portion at the end of the linear track was provided for each unit to ensure that the customer’s pick and place mechanism could pick up the same easily without any accompanied vibrations. For ease of the customer, Elscint supplied 5 systems within 6 weeks of the order and balance after 12 weeks when rest of the assembly machine of the customer was ready.  

About the author

Monish Shete is CEO of Elscint Automation, a 30 year old firm manufacturing vibratory bowl feeders and similar small part handing products. He personally has more than 25 years experience with last 15 years being with Elscint. This blog will help customers and laymen understand the intricacies of vibratory bowl feeders. One can find information about the finer aspects of vibratory bowl feeders which cannot be found anywhere else. Case studies and information about various innovative ways of feeding and orienting of different parts are given in this blog.