Type E Fine Grinders and Industrial Shredders

The Jeffrey Type E shredder is designed for secondary and tertiery wood applications, where fine-finished product is required. Finished products are typically 1/4", but can be less with certain applications. Type E is available in both vertical and horizontal-feed arrangements. The horizontal-feed arrangement is typically used for lightweight, fibrous materials, such as wood waste and shavings, used for the manufacture of MDF, OSB and others.

Type E Shredders Offer High Capacity on Light Material

When using Type E as a primary shredder, the unit can be set up with rigid-type hammers to give the rotor higher inertia to “pull” through the most difficult applications.

As a secondary shredder, the machine incorporates thinner plate-type hammers to increase the cutting action in the shredding chamber. Typically, in secondary applications, infeed piece size should not be over three inches. The smaller infeed size has a direct effect on the reduction ratio of the material, thus giving a better result and reducing machine wear.

Heavy-Duty Rotor Design

While the Type E Shredder typically uses a higher quantity of thinner rotor discs than a wood hog, the rotor is still built using Jeffrey’s heavy-duty design. As a horizontal-feed machine, disc thickness is increased, and the discs are spaced farther apart, so heavier hammers can be installed.

The rotor incorporates a large-diameter alloy-steel shaft, mounted in spherical roller bearings in steel bearing housings. The bearing fill blocks can be removed to facilitate easy bearing replacement without displacing the rotor assembly from the housing.

Hammer Design

The swing hammer utilizes a plate design hammer, typically with hammer pinholes on each end. The dual hammer pinholes give the hammer the ability to be turned four times (four cutting edges), which reduces replacement and maintenance costs.

Rigid hammers can be supplied with up to six cutting edges. Rigid hammers are attached with two high-alloy hammer pins to ensure long wear life.

Discharge Media

Shredders can be supplied with a variety of different screens or screen grates. Screen grates are used to produce larger products, and they are manufactured from heavy abrasion-resistant steel. When producing finer products, we recommend the use of perforated plate-type screens, which can be supplied in a large variety of openings, open area, and construction material.

Housings

Housings are manufactured from heavy rolled steel plate. The interior walls are lined with abrasion-resistant steel liners, which are bolted from the outside for easy change-out and minimum maintenance time. The upper housing is a curved design that maintains tight tolerances (essential for fine grinding).