Velco Gesellschaft für Förder-, Spritz- und Silo-Anlagen mbH

The gunning machine type "ROTAMAT f" (refractory) is a continuously operating rotor gunning machine with a wide range of capacity and is well-proved in the refractory industry. Wherever great demands are made to the machinery technology with regard to dust-free and low-wear gunning of dry refractory concretes - the "ROTAMAT f" is used.

The gunning machine type „ROTAMAT f“ (refractory) complies with all relevant provisions of the machine directives 2006/42/EG, the low voltage directive 2006/95/EG on electrical equipment and the directive 2004/108/EG on electromagnetic compatibility.

The gunning material to be worked is fed through a hopper and a star-shaped agitator to the rotor. This rotor - fixed-ended between two sealing disks and driven by a rotary-current or compressed-air motor conveys the gunning material by the so-called thin-stream-method to the blow-off socket where it is blown into a hose or pipeline by compressed air.

Before being discharged from the line, the up to now dry or earth-slightly moist gunning material is mixed with water in the nozzle mixing unit.

The device operates with a blowing pressure from 0,5 to 6 bar and is able to transport the gunning material over a distance of up to 200 m.

Furthermore it is possible to operate the total installation by means of a remote control. In connection with the well-known Velco storage and charging systems the whole gunning procedure can be automated at a later stage.

For the processing of gunning material with a higher humidity share, so-called plastic materials, Velco has the gunning machine RON and NA in their production program.


The gunning machine RON has a gunning capacity of up to 1,7 m³/h.


The NA machine is suitable for higher gunning capacities (up to 4,5 m³/h).

Transport unit for VELCO - Rotamat

This new transport unit for the VELCO rotor gunning machine enables a safe displacement of the machine by means of forklift, crane or truck inside or even outside the plant.

The transport unit distinguishes by simple and safe handling. The Rotamat machine is set on the transport unit, easily fixed and soon ready for transport.
The unit is furthermore equipped with a lockable box where the gunning equipment, friction wheels, packing washers and tools can be orderly and safely kept with the machine.