THE PRODUCTION PROCESS
![trazo_white Proceso de fabricación del cemento (Infográfico)](http://www.oficemen.com/wp-content/uploads/2017/02/trazo_white.png)
The 10 stages of manufacture
1. Exploitation of the quarry
By means of small controlled detonations, the limestone is extracted, main raw material of the process.
![proceso_1 1. Obtención y preparación de materias primas](http://www.oficemen.com/wp-content/uploads/2017/04/proceso_1.png)
2. Crushing
The limestone is crushed in successive phases until it reaches fragments of about 50 mm.
![proceso_2_ok 2. Trituración](http://www.oficemen.com/wp-content/uploads/2017/04/proceso_2_ok.png)
![proceso_3 3. Prehomogeneización](http://www.oficemen.com/wp-content/uploads/2017/04/proceso_3.png)
3. Pre-homogenization
Starting from the variable qualities of the stone, a uniform mineral composition is obtained, the raw mix.
![proceso_4 4. Molienda de crudo](http://www.oficemen.com/wp-content/uploads/2017/04/proceso_4.png)
4. Storage and grinding of raw meal
With mills of bars or steel balls the ideal granulometry is obtained to form the raw meal.
![proceso_5](http://www.oficemen.com/wp-content/uploads/2017/04/proceso_5.png)
![proceso_6-7 5. Precalentador de ciclones](http://www.oficemen.com/wp-content/uploads/2017/04/proceso_6-7.png)
5. Pre-heating
Raw meal passes through the pre-calcination cyclone exchanger, where the residual heat of the furnace gases is used.
6. Rotary kiln: calcination and cooling
Raw meal is the subject of a series of physical and chemical transformations that take place in large rotary kilns:
7. Clinker storage
![proceso_8 7. Fabricación del clínker: Enfriador](http://www.oficemen.com/wp-content/uploads/2017/04/proceso_8.png)
![proceso_8_intermedio](http://www.oficemen.com/wp-content/uploads/2017/04/proceso_8_intermedio.png)
8. Clinker grinding and cement manufacturing
Once the additions, gypsum and other additives have been dosed, the materials are milled and homogenised until the final product is obtained: Portland cement.
![proceso_9 8. Molienda de clínker y fabricación de cemento](http://www.oficemen.com/wp-content/uploads/2017/04/proceso_9.png)
![proceso_10 9. Almacenamiento del cemento](http://www.oficemen.com/wp-content/uploads/2017/04/proceso_10.png)
9. Cement Storage
![proceso_11 10. Envasado o expedición a granel](http://www.oficemen.com/wp-content/uploads/2017/04/proceso_11.png)
10. Packaging or bulk shipment
![proceso_12](http://www.oficemen.com/wp-content/uploads/2017/04/proceso_12.png)