As the pellet mill can only process the raw materials with a diameter lower than 5mm, before the pelletizing process takes part in a pellet plant, the raw materials such as straw, bark, branches, corn stalk, need to be resized. In that case, hammermill, which can grind the raw materials into pieces with the required size, is a necessary auxiliary equipment for a pellet plant.
The working principle of hammermill is simple. Basicly, hammermill is a metal drum, and inside, there is a rotating shaft with many hammers on it, which are fixed to the rotor. The rotor is rotating on a high speed while the raw materials are feeding in the grind chamber. After crashing and grinding by the hammers, the resized raw material will pass through the sieve holes by air flow, the particles which is failed to pass the sieve holes will go through the grinding process again. Here is the pictures of GEMCO hammermill inner structure:
Hammermill, also called wood grinder, is aimed to grind the materials into small pieces with a diameter below 5mm before pelleting. Unlike the wood crusher, the diameter of the raw materials for hammermill is no more than 50mm. In consideration of your different requirements of capacity, price and quality, GEMCO provides a various kinds of hammermill to meet your demand, both small hammermill and large hammermill are available.
|Model||Power||Size (mm)||Net weight (kg)||Spindle Speed (r/min)||Screen||Capacity (kg/h)|
|Rotor diameter (mm)||800|
|Grinding chamber width (mm)||400||600||800||1000||1200|
|Spindle speed (rpm)||2300|
|Hammer line speed (m / s)||96|
|Belt Model||NSK 2317|