Simple Rotor Hammer Mill

Chain mills are machines designed to reduce the particle size of a material by causing it to collide with a series of high-speed chain links.

The J&H HD Single-Rotor Hammer Mill uses a rotor equipped with AR400 alloy hammers that increase the crushing surface area.

J&H hammer mills are designed to process materials of varying hardness and moisture content.

Hammer mills feature a large front access door, which, combined with the unique full-width side access doors suspended in the center, allow for the fastest access, cleaning, and maintenance in the industry.

All structural components of the hammer mill are solidly constructed and welded. The impact zones are protected by solid rubber pads that cover the entire area, ensuring easy replacement and greater durability.

Zero-speed sensors and proximity switches for the access door are available as options.

A unique and innovative feature of the HD MOD III J&H chain mill is that the rotors are completely supported and moved on one side of the machinery. This configuration allows for wide access doors at the front and sides of the machinery providing easy access to all the points that need to be reached to perform services. It positions all mechanical parts of the machine on one side for easy inspection and maintenance and evaluation of mechanical systems. In general, maintenance of mechanical systems is easier and more efficient.

The inner bearings, which support most of the rotors weight, are mounted on rubber tracks, allowing the shafts to respond individually to starting and stopping forces as well as the various impacts that occur during machinery operation. The flexion of the rubber tracks against the rigidity of the frame support absorbs the rotor movement and dissipates the stress generated in the shaft. This takes loads off the bearings, extending their life. Vibratory forces common in most current mills are dissipated and reduced to negligible amounts in the mill frame. The advantage is that the HD MOD III J&H chain mill does not need to be isolated from the plant structure and can be mounted directly on the concrete floor using standard screws.

With over 40 years of experience, J&H chain mills are robust, reliable, and efficient.