Gunite machine (concrete spraying machine) – SSB 05
Field of Application
Gunite machine SSB 05 is designed for spraying of concrete and refractory mixtures in a so-called dry method. This machine works on the rotor principle. The SSB 05 gunite machine provides a gunite capacity of 0.5 – 3 m3/h and is suitable for smaller-size jobs.
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This machine finds its main applications in the spraying of refractory concrete mixtures during the lining of metallurgic and glassworks furnaces, heating plant boilers, coke-oven batteries, etc.; in the metallurgic, chemical and glass working industries. It is also used to maintain concrete structures (e.g. road and railroad bridges, abutment walls, cooling towers, water reservoirs, sewerage plants, etc.); during the construction and reconstruction of buildings and during the reinforcement and bracing of tunnel vaults and sewers.
Manufactured Models
The gunite machine SSB 05 is driven by a single-speed electromotor with a ballast resistor (variator) enabling continual output regulation. Its standard equipment includes central lubrication system that ensures the automatic greasing of all abrasion-prone surfaces.
Depending on the nature of concrete used, a small or large dosing drum is employed. The small drum is recommended for the spraying of fine, dry and heavy mixtures (e.g. refractory concrete, fine prefabricated mixtures).
| Model | Drive | Output regulation |
|---|---|---|
| SSB 05 COM-V | One-speed electromotor | smooth – variator |
Working Principle
Gunite machine SSB 05 works on the principle of pneumatic transport of concrete mixture.
The dry mixture for spraying or transportation is poured in the machine and smoothly fills the cylinders of the rotor below the hopper. To fill a mixture into the rotor more easily, a vibrator and a rippling are fitted in the hopper. The rotating movement of the rotor moves the mixture along by 180° in the clockwise direction. The mixture is thus blown out from individual cylinders of the rotor into transport hoses. As the mix passes through the blower into the transport hoses, lower pressure air is added to enhance the continuous flow of the material in hoses. The hoses are equipped with the spraying nozzles at the end, into which the mixing water is fed at the same time to wet the transported mixture. The required wetting of the mixture is controlled with the supply cock.
The output of the machine is controlled mechanically by a ballast resistor (variator).
Technical data
| Parameter | Small rotor | Big rotor |
|---|---|---|
| Rotor volume [dm3] | 1,5 | 3,8 |
| Theoretical output *) [m3/h] | 0,2 – 1,2 | 0,5 – 3 |
| Air consumption **) (transport distance of 40 m) [m3/min] |
3 – 5 | |
| Air pressure [MPa] | 0,5 – 0,6 | |
| Motor output [kW] | 3 | |
| Mains connection | 3 × PEN 400 V | |
| Transport hoses inside diameter [mm] | DN 25/32/40 | |
| Granularity of transported material [mm] | 8 (DN 25/DN 32); 16 (DN 40) | |
| Max. moisture of material [%] | 6 | |
| Horizontal transport distance [m] | max. 300 | |
| Vertical transport distance [m] | max. 100 | |
| Water hose inside diameter [mm] | DN 20 | |
| Minimum water pressure at nozzle [MPa] | 0,3 | |
| Dimensions | SSB 05 |
|---|---|
| Length [mm] | 1360 |
| Width [mm] | 740 |
| Height [mm] | 1220 |
| Weight (with no accessories) [kg] | 560 |
*) These are theoretical values only. The actual output depends on the design of transported mixture, the capacity of the source of the compressed air, the transport distance and the diameter of the transport hose.
**) The data regarding the consumption of air is only approximate and depends on the momentary output of the machine, the transport distance and the diameter of the transport hose.
Advantages
- Excellent operating capacity during the transport of heavy, dry and fine concrete mixtures (refractory concrete, fine prefabricated mixtures)
- Long service life of consumption parts (sealing and wearing plates) ensured by the application of central lubrication system
- stepless output control
- low operational costs
- easy operation and maintenance of the machine
- robust structure enables work in demanding conditions
Photogallery
