Products / STD Series Pendulum Roller Mills
CMS designs and manufactures pendulum roller mills since 1979 as a subcomponent of turnkey grinding plants. More than 50 mills are installed in worldwide for variety of grinding applications including calcite, lime (quick/slaked lime), dolomite, barite, bentonite, kaolin, soil, coal and pet-coke.
Design of the mills is in continuous progress over years. All subcomponents of the mill are selected with care including electric motor, gearbox etc. selected heavy load industrial bevel gears have high service factors in order to prevent gearbox related failures. External oil cooling is provided as a standard package.
Main structure of the mills is durable against the mechanical loads of the grinding process and wear. Grinding rings are manufactured of high chromium content special steel casting. Grinding rolls are manufactured of chromium and nickel alloyed white cast iron with a hardness over 500 HB. Scoops are manufactured of wear resistant steel plates with a hardness of 400 HB. The design of the mills can be modified due to the specific characteristics of the material to be ground. Durability of the mills are proven that the first two of the mills manufactured served until the middle of 2013.
It is a common fact that the operation failures are caused by the rolls generally. Innovative hydraulic lubrication and dust prevention system of STD series rolls, keeps the maintenance costs minimum by sustaining reliable operation. Main bearing system of the mills is designed to be dust proof and can serve over 25 years with regular maintenance procedure and operating conditions.
Air classification of the ground particles is done by an integrated dynamic air classifier. The design of the classifier rotor changes according to the material properties and particle size distribution requirements. A suitable classifier configuration is selected for each process. Classifiers are equipped with coarse particle prevention system.
STD series consists of these components;
- Feeding Unit: Rotary vane feeders especially designed for feeding bulk solids with small particles.
- Drive Unit: Main motor, gearbox and couplings.
- Main Body: Grinding ring and rolls, air inlet and distribution take place.
- Air Classifier: Dynamic air classification is done by an integrated classifier.