Cement clinkers are formed by the heat processing of cement elements in a kiln. Limestone, clay, bauxite, and iron ore sand in specific proportions are heated in a rotating kiln at 2,770° Fahrenheit (1,400° Celsius) until they begin to form cinder lumps, which are also known as cement clinkers. Cement clinkers are usually ground with gypsum to produce the fine powder later mixed with liquid to produce cement. Global Trading Business GTB has a wide clinker manufacturer base, and with that are able to supply clinker in large quantities. We can easily connect you to viable source of clinker manufacturers around the world.

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In the manufacture of Portland Cement, clinker is the solid material produced at the cement kiln stage that has sintered into lumps or nodules, typically of diameter 3-25 mm. Clinker, if stored in dry conditions, can be kept for several months without appreciable loss of quality. Because of this, and because it can easily be handled by ordinary mineral handling equipment, clinker is traded internationally in large quantities.

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The freight cost of clinker is much lower than that for the equivalent amount of finished cement. Cement manufacturers who purchase clinker grind it in addition to their own clinker at their cement plants. Manufacturers also ship clinker to grinding plants in areas where cement-making raw materials are not available.

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