Cement Rotary Kiln

Cement rotary kilns are used for the pyroprocessing stage of manufacture of Portland and other types of hydraulic cement, in which calcium carbonate reacts with silica-bearing minerals to form a mixture of calcium silicates. Over a billion tonnes of cement are made per year, and cement rotary kilns are the heart of this production process: their capacity usually define the capacity of the cement plant.

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  • Supporting device: advanced shaft structure, automatic temperature measuring device and electrical heating.
  • Gears: single or double. Control the rotating speed by buncher, DE machine and frequency variable motor. Be reliable, energy-saving, and efficient.
  • Cylinder tire bolster: lower bolster has three types: fixed, zoom and floating. The structure is simple, replacement is convenient and won’t hurt cylinder.
  • Sealing equipment: there are many kinds for choice according to kiln models, including air cylinder edge sealing, spring edge sealing, and graphite block sealing and combination for above. The sealing effect is very good.
  • Catch wheel: including two kinds mechanical wheel and hydraulic pressure.

 Cement rotary kiln is mainly composed of cylinder, supporting device, supporting device with catch wheel, transmission device, lubrication device, mobile kiln head and sealing device at the end of the kiln. 

1. Supporting Device: it adopts advanced main shaft structure, automatic temperature measuring device and electrical heating device. And it has optional flow support.

 2. Thrust roller: It has mechanical type and hydraulic type. The hydraulic thrust roller is equipped with advanced hydraulic controlling system.

 3. Drive device: It has single drive or double drive. The adjustable-speed motor, DC motor or frequency variable motor control kiln rotation speed. And has features of reliable running and high efficiency.

4. Tyre shim: The shim under tyre has fixed type and adjustable type. The adjustable shim has features of simple structure, easy replacement and maintenance without any damage to shell.

 5. Sealing device: Various types of sealing device are available for different kiln, such as cylinder tighten sealing, spring tighten sealing, graphite block sealing, spring graphite, fish scale type seal etc, which has good sealing effect.

 6 Kiln head hood: It has fixed type and flexible type.


Usage and Application:

The rotary kiln is widely used in the fields of building materials, metallurgy, chemical industry, environmental protection, etc. It can be divided into cement kiln, metallurgy chemical kiln and lime kiln according to the different materials processed. The cement kiln is mainly used to calcine cement clinker; In the process of non-ferrous and ferrous metallurgy, such as iron, aluminium, copper, zinc, stannum, nickel, wolfram, chromium, etc., the rotary kiln can be used to sinter and roast ore, concentrate, intermedium, etc.; The lime kiln is mainly used to calcine limestones.


Model Output (t/d) Main Drive (r/min) Motor (kW) Regulating Range (r/min) Gearbox Velocity Ratio Weight (t)
Φ2.2×50 96 0.125-1.25 30 132-1320 157 130.71
Φ2.5×50 130 0.516-1.549 55 440-1320 99.96 167.5
Φ3×48 850 0.3309-3.309 90 100-1000 32.11 237
Φ3.2×48 1000 0.375-3.75 160 100-1000 27.469 252
Φ3.2×50 1200 0.398-3.975 190 150-1500 40.85 263
Φ3.3×52 1200 0.391-3.91 190 100-1000 27.707 280.8
Φ4×60 2500 0.396-3.96 315 100-1000 34.601 487.5
Φ4.2×60 2800 0.4165-4.165 420 100-1000 35.526 576.1
Φ4.3×62 3000 0.398-3.98 420 100-1000 35.714 598.5
Φ4.3×64 3200 0.449~4.49 450 100~1000 24.365 585
Φ4.5×66 4000 0.41~4.1 630 100~1000 34.069 710.4
Φ4.8×70 5000~5500 0.4~4.0 630 100-1000 30.876 845.3
Φ4.8×72 5000 0.403~4.03 560 100~1000 30.365 847
Φ4.8×74 5000 0.35~4 630 130~1500 42.226 841


Cement rotary kiln, which is mainly used for calcinating cement clinker, is the main equipment of the new dry type cement production line.

We can not only supply the kilns but also custom rotary kiln spare parts,like rotary kiln tyre,gear,and so on.

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