How to choose the shredder specifications and feeding methods

08.26, 2020
1. What size shredder should I choose?
For the selection of shredder equipment, it is very important to choose a shredder of appropriate specifications. Generally, a suitable shredder is recommended according to the characteristics of the material and the size of the discharge. The size of the shredder is usually not required to use 100% of the available power to complete the crushing work required.
The reason for this is because as the use time increases, the cutter will become blunt, and more energy is required to cut the material. If the shredder has sufficient surplus power, the user can continue to use it for a longer period of time without maintenance before the cutter needs to be replaced.
It is recommended that as long as the power is sufficient, the size of the knife box should be considered when selecting the shredder to grab as much material as possible. Therefore, in addition to the model and power, it is also necessary to consider factors such as the size and wheelbase of the knife hook, the feed chamber and the material characteristics.
2. What kind of feeding method should be selected?
2.1 Batch feeding
Batch feeding involves using a grab or loader to pour a large amount of material into the crusher hopper. Batch feeding is common in home appliance destruction, building demolition work, or bundled material handling. Although batch feeding is simple and straightforward, the efficiency is relatively low. If the size of the shredder's knife box is not appropriate, the shredder is more likely to cause material bridging and blockage or accept more than the crushing capacity at a time in the case of batch feeding.
2.2 Metering feed
Metered feeding refers to feeding materials into the hopper at a stable controlled flow rate through a conveyor. If the material can be metered and fed, the shredder can monitor its feed volume and more effectively adjust the matching speed of the production line. The result of metered feeding is fewer reversals or shutdowns.