HOSOKAWA ALPINE Aktiengesellschaft

- Model AHM - Horizontal Agitated Media Mill



An agitated media mill with a horizontal, cylindrical milling chamber that is universal in use for the continuous wet milling of particles down to the submicron range. The AHM agitated media mill was developed especially for suspensions with good flow properties where a steep particle size distribution and high end-product fineness are demanded. The mill is suitable for both continuous operation and for batch mode in the case of closed-circuit milling. The AHM is available in sizes suitable for the laboratory, the testing centre or for large-scale production. Alpine thus offers a complete product line to cover this range of processing tasks.

  • Enclosed and horizontal agitated media mill for circuit and single-pass mode. 
  • Universal in use. 
  • Machine sizes available for laboratory applications and for large-scale production.
  • The modular design of rotor and mill housing make the wear-protection elements easy to exchange.
  • Maintenance of the separating element possible without having to empty the mill.
  • Easy to access for cleaning and service.

Size reduction of the particles takes place in a liquid with the aid of a bed of agitated grinding beads. In continuous mode, the product is pumped into the mill, it flows through the agitated bed of grinding beads and exits the mill through a screening element located at the end of the grinding chamber. Approx. 70-80% of the mill volume is filled with grinding beads.

Chemicals, minerals, PCC, ceramics, foodstuffs, metals, pigments, paints (mass production), laboratory, nano particles, abrasives, pharmaceutics. This mill is suitable for small amounts of product and for development trials - also on the nano technology sector. Extremely small grinding beads (< 0.2 mm) can be employed with this mill, and investigations regarding the stabilisation of suspensions in the submicron range can be executed.

The mills are equipped with stationary or mobile service units that guarantee simple dismantling for cleaning and  maintenance. There is sufficient space underneath the grinding chamber to permit the use of large-volume collection bins for emptying and cleaning the mill.

The slotted pipe separating element for separating the grinding beads is installed in the mill axis, which guarantees low wear. It comprises a screen holder and a slotted pipe screen which can be exchanged easily and quickly without having to empty the mill. Rotating stirrers in the separating zone relieve the screen dynamically and prevent blockages. A robust, double-action mechanical seal with sealing-liquid unit guarantees a high level of operating reliability.

The AHM has a cylindrical, double-walled mill housing that can be cooled. Inside the mill housing, quick-exchange liner pipes are used. The grinding chamber lining with exchangeable liner pipes and the rotor are available in either hardened stainless steel or polyurethane. This modular concept offers such advantages as inexpensive spares and flexible application possibilities. The material of construction for the agitator discs, separating rings and stirrers is selected to suit the individual application.

Because of this, a long service life can be achieved even when processing abrasive suspensions. The individual components were designed with flexibility and cost optimisation in mind. When extremely high demands are placed on the products with regard to freedom from contamination, the rotor and stator parts can be coated with either high-grade ceramics or tungsten carbide.

  • Gehäuse kühlbar
  • EX-Schutz

Mahlorgane und Einschubrohre aus:

  • Polyurethan
  • Hartguss
  • Edelstahl
  • Keramik (nur kleine Baugrößen)

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