Established in 1942
+7 (846) 3-741-741 ext. 138
Since 1942 Strommasina Corp. has been successfully producing equipment for the mining, building, oil and gas, as well as road, metallurgical industries.

Rotary dryer SMZ.855.80

Rotary dryer is designed for drying bulk materials by furnace gases.

Drying cylinders are used in construction materials industries in various processing lines for heat drying of lime-stone, clay, sand drying, chalk-stone and other bulky materials with particles lump size up to 35 mm.

Drying cylinder consists of a casing, support and thrust station, support station, drive, tyres, toothed gear.

Drum casing is a welded structure and performed out of separate sidewalls. Heads are installed inside the casing for activization of heat transfer: the screw type – in the beginning, lifting blade – in the medium section and the sector type – in the end.

Two steel tyres are the support of the casing.
The casing is supported by its tyres on the support and thrust -support stations. Ring gear is fixed on the drum casing by means of cross-beams, through which the drum is rotating from the drive.

The drive consists of drive pinion, gear box and electric motor connected between each other by coupling and mounted on one frame.

The unloading camber is designed for furnace gases removal and discharge of dried material.

The drum is installed towards the horizon at an angle 2o. Casing incline in combination with axial rotation provides the material shift towards the discharge chamber.

Hot furnace gases enter the casing and touching the material heat it up evaporating the moisture it contains. Heat transmission occurs by three main methods: in weighed condition at material falling from the blades, from furnace gases through outer surface of the lying material in the material pile, from more heated parts of the drum inner device and a casing sidewall.

Drying modes for various materials are changing depending on raw material moisture on the drum input and the required moisture of finished material on the drum output, material fraction composition subject to drying, material characteristics

Temperature of the heat carrier supplied to the drum shall not exceed 800oC.

Flue-gas temperature at drum outlet not less than 100oC – 150oC to exclude possibility of moisture condensation in the drum discharge section.

On furnace gas inlet of the drum there shall be vacuum not les than 30 Pa.
Fuel – natural gas, condensed gas, diesel fuel.

Performance data

Name SMZ 855.80 1,6х8)
Type Flow type
Operation character Continuous
Drum casing dimensions (length х diameter), mm 8000х1600
Drum volume, m3 16
Drum rotation frequency, rpm. 3,14/4,15/6,2
Drum casing slope towards the horizon, degree. 2,5
Heat carrier Furnace gases
Heat carrier temperature, оС 800
Overall dimensions (length х width х height), mm 9850х2800х3550
Mass, kg 12400
Motor installed power, kW 8/10/12,5
Motor rotation speed, rpm 750/1000/1500
Supply voltage, V 380
Gear box 1C2U-250-31,5-21
Normative document TU 4845-005-54028986-2008
OKP code 484500


  1. Capacity is not indicated since it depends on material characteristics, its moisture (initial and final), initial material size. To be determined by calculation method.
  2. As agreed with the customer it is possible to change drum casing sizes.
  3. As agreed with the customer an additional completeness by loading and unloading chambers is possible, heat generators, burners.

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