Rotom hogs have three main sections: machine frame, rotor and bottom screen unit. The hogs come in 8 sizes for capacities ranging from 5 to 300 cu.m./hr. Different rotor and bottom screen units can be combined in more than one hundred different ways to obtain a perfect solution and rpm for most materials and size-reduction requirements.
Machine frames are available for horizontal and gravity feeding.
Hog design
The hog frame has a module design, and exposed sides are protected with thick, easily exchangeable wear plates. To facilitate maintenance, the hood is hydraulic and there is a rear hatch as well as hinged walls on the other two sides.
The rotor comes in two basic versions and can also be specially adapted to different applications.
The bottom screen unit is available in many different standard designs and can also be specially designed for different degrees of product fineness.
All wear parts are easily exchangeable and, in most cases, turnable.
Mode of operation
Size-reduction of material is done in three stages:
The incoming material is processed by the rotor against an anvil bar. The chips and oversize produced in this first stage then are further processed in a second stage against an anvil. Thereafter, the material is finally reduced in a cutting and screening bottom discharge unit before being fed out onto a conveyor under the hog.
Drive
Depending on size, the machines can be equipped with direct V-belt drive or an hydraulic coupling and a separate motor foundation.
