The cement industry produces large volumes of dust throughout the entire process. That is why at Eolter we develop robust, high-performance filtration systems designed to withstand high temperatures and heavy particle loads, ensuring effective emission control, operator and equipment protection, and compliance with environmental regulations.
We design our filtration systems tailored to the dust characteristics, airflow volumes, and thermal conditions typical of the cement industry. This in-house manufacturing process allows us to meet the specific needs of each plant.
We create specific filtration systems to protect key equipment in the cement industry, such as kilns, mills, silos, and clay yards. Our solutions reduce mechanical wear caused by dust, ensuring uninterrupted operation and easy maintenance.
We design each model to match key parameters such as type of dust, working temperature, humidity or particle load, which allows us to guarantee efficiency and durability in our equipment.
Emission source
Typical particle size range (µm)
Main characteristics
Primary crushing (quarry)
50 – 500 µm
Coarse particles, high fraction >100 µm, settle quickly.
Raw material grinding
10 – 100 µm
Mix of fine and medium fractions, presence of silica and carbonates.
Precalciner / rotary kiln
1 – 50 µm
Very fine dust, high respirable fraction (<10 µm).
Clinker cooler
5 – 200 µm
Broken clinker particles and air-entrained dust.
Cement grinding (ball/roller mills)
1 – 30 µm
Very fine dust, high proportion of submicron particles (<2.5 µm).
Transport and storage (conveyors, silos)
10 – 100 µm
Heterogeneous dust, depends on handling conditions.
Bagging and dispatch
2 – 50 µm
Fine particles, high respirable fraction.
Bag filters capture dust and solid particles generated during the cement production process, improving air quality and protecting both workers and equipment. They are also essential for controlling emissions and complying with environmental regulations.
Cement filter bags are made of technical fabrics resistant to high temperatures, abrasion, and chemical agents present in cement dust. Materials such as aramid fibers, PTFE, or treated polyester are the most common.
The service life of filter bags varies depending on operating conditions, but generally, they should be inspected and possibly replaced every few years, depending on wear from abrasion and particle accumulation.
Maintenance consists of periodic cleaning using compressed air pulses, visual inspection to detect wear or tears, and replacement of damaged components to ensure continuous and efficient performance.
They must comply with local and international environmental regulations on industrial emissions, such as the European Industrial Emissions Directive (IED) and national standards that regulate particle limits in the air to protect health and the environment.
