Contra-Selector Mill PPS Contra-Selector Mills, type PPS and PPSR are preferably used for pulverization of greasy, sticky and moist products as well as for grinding and drying of the materials in a single step. Foodstuffs Sea salt, chewing gum, broken cookies, pasta and food additives. Thickening agents Agar-agar Vegetables Mushrooms, carrots, onions, soybeans, olive pits, asparagus, pumpkin seeds. Grain milling products Grain of any kind, hops, malt bran, corn gluten, and wheat starch. Fruit Orange peels, lemon peels, raspberry leaves, rose hips. Spices Nutmeg, mace, mustard seeds, paprika seeds,...

In order to achieve the necessary finenesses, small screen perforations are often necessary in the screen basket of the mill. When using conventional mills with stationary screen baskets, there is the risk of the screens clogging quickly and therefore variation of material fineness and caking to the interior wall of the housing. In such cases, safe and continuous pulverization is no longer possible. The Contra-Selector Mill offers an economical solution. The unique operation of the mill allows for reliable production. Additional areas of application are in the dry grinding field. The drive energy...

Outstanding technical solutions direction of the screen basket (counter-rotationalor unidirectional with the impeller) determines if gentle grinding or a high-energy transfer into the material to be ground is achieved. Unidirectional principle If the screen basket and the impeller rotate in the same direction (unidirectional principle), the relative velocity and thereby the impact load are reduced. This adjustment is chosen for gentle grinding if a product with a low percentage of fines is to be obtained. Unique method of operation The main characteristic of the mill is a rotating screen basket....

Easy cleaning The interior of the Contra-Selector Mill is easily accessible after opening the door of the mill and can be quickly cleaned and maintained. Special devices facilitate dismantling of the impeller and screen basket. Material feeding Even material feeding is necessary in order to achieve maximum capacity and constant quality. Depending on the material, different dosing systems are available such as vibratory feeders, rotary discs, screw-conveyors and belt feeders. We deliver the complete system, depending on the requirement. Special designs As a standard, the Contra-Selector Mill is...

Performing Systems Proper installation guarantees optimum machine efficiency Contra-Selector mills, type PPS and PPSR should always be fed by means of vibratory- or screw conveyors in order to guarantee continuous material feeding and optimum use of the installed electric power. It is recommended to install either a plateor a drum magnet or even better a metal separator between the conveyor and the material infeed. The airflow generated by the Contra-Selector mill, type PPS and PPSR should be taken care of by installing an aspiration system with dust collector. The mill can be installed on a...

Technical data: Type Scale-up factor Diameter of grinding track Width of the screen basket Recommended motor, impeller Recommended motor, screen basket Weight (machine without motors) Shipping space Air displacement of machine Standard version with bottom discharge A B C D Design with suction trough Design with lateral product discharge

The PALLMANN Group of Companies The PALLMANN Group of companies is a leading manufacturer for size reduction machines and systems for the process industries. PALLMANN Maschinenfabrik develops and manufactures machines and complete systems according to customer requirements or as standard solutions for the preparation of almost any material as well as recycling products. In its headquarters in Zweibrücken, PALLMANN operates one of the world’s largest research and technology centers as well as a training- and service center. More than 130 different test machines are available for the preparation...