The B100S is a simply designed volumetric pump without valves. The key components are an eccentric steel alloy rotor with a single thread and highly abrasion resistant stator that has a double thread. As the rotor turns inside the stator, the meshing geometry of the two components create sealed chambers on both inlet and outlet sides. Rotation of the rotor opens and closes the chambers gradually and alternatively. This way, the material is continuously conveyed. Output is proportional to rotation speed.

The screw pump may be readily operated in either forward or reverse, thus enabling the hoses to empty in case of clogging.

Gradual output control ensures accurate injecting and spraying

To start and stop the B100S, use its radio remote control. Alternatively, the machine can be equipped with a handy low voltage cable remote control.

The B100S, connected to an appropriate air compressor, enables a constant spraying and makes your work easier.

The B100S can be equipped on request with a pump for setting accelerator, thanks to the system designed by Bunker the flow rate of the additive is always proportional to the flow rate of the concrete.

The Diesel engine speed is controlled by a handy lever. Fuel tank capacity for an entire work shift. Control leds enable easy monitoring. The hydraulic power-pack is driven by a new Lombardini CHD 2204 engine, powerful and ecological with an low fuel consumption.

Easy to manoeuvre guard locking devices prevent opening of the protective grids of the hopper and mixer. If opened, they stop the rotation of the screw feeder or mixer paddles.