The new concept of pumps for plasters and mortars

BUNKER proves once again to pay close attention to the markets’ evolution. Its new S8 SMART confirms in fact just how much care it dedicated to listening to the markets’ new needs by creating an innovative plastering machine of undeniable interest, which contributes to the satisfaction and the convenience of its users.


The idea of designing it with a dual power source, by equipping it with its own electricity generator, makes it completely autonomous. This completely frees the users of problems tied to electric power supply.

The S8 Smart is also capable of providing the power required for operating a cement mixer, a drill, halogene lamp etc.

The S8 Smart equipped with mixer.

Capable of comfortably responding to the multiple requirements of the modern construction site, it can be used both in the construction of new buildings as well as restoration work.

Its minimal bulk as well as a contained weight allow for a facilitated transport and on-site re-positioning.

Compared with other screw-pump plastering machines, the S8 SMART rotates at a much lower rate, increasing remarkably the component life, thus slashing maintenance costs. Another factor not to be under-estimated is the fact that the S8 SMART is the only pump of its category capable of pumping grain sizes of up to 10mm (0.393 In).

Thanks to the high grain size and the variable flow rate it is possible to pump, spray and inject: Traditional plasters, both for indoors and outdoors, Pre-mixed plasters, both for indoors and outdoors, Special plasters, Fibre-reinforced mortars, Refractory mortars, Mortars for joint filling, Self-levelling floor screeds, Pre-packed mortar and special products for structural work on concrete and stone buildings.

It is also possible to spray concretes on steel wire grids for structural restorations. Thanks to a practical kit it is also possible to carry out cementy slurry injections at controlled pressure. Using the appropriate lance it is possible for the S8 SMART to carry out jobs such as filling of joints and connections. The S8 SMART satisfied all our requirements. It is an innovative and easy to use plastering machine. With its rich variety of equipment, composed of the compressor, vibrating screen, a kit for spraying and one for cleaning the hoses, manometer, and remote-control, instruction manual for operation and maintenance, and a well furnished toolkit also including essential spare parts.


  • Self levelling floor screed
  • Spraying of pre-mixed or traditional plasters
  • Concrete spraying
  • Spraying fibre-reinforced mortars
  • Filling joint
  • Injection of cement slurry

Technical Data

The controls being gruped together on a single water-proof control panel enable a simple control of the machine’s full functions. Furhtermore, it is equipped with an hour-meter which allows to schedule maintenance operations.
Above all, however, the elecrtic box is equipped with an INVERTER, an electronic device of extreme importance which allows not only the variation of flow rate but also, and more importantly, to reduce the absorption of power.

Should there be any problem with the electricity panel, it is simply a matter of removing the plug and the whole panel will be quickly replaced.
This practical solution allows for the problem to be solved in the customer care centre, thus avoiding unnecessary stoppage times.

A simple turn of the key and the new Honda engine with horizontal transmission will provide all the power you will need.
In all safety and silence.


The S8 Smart is equipped with the most reliable safety devices.
During its operation, the opening of the protection grid automatically halts the mixing blades.
Lifting the vibrating screen blocks the rotation of the screw feeder.
The electric engines are protected by over-charges and brown-outs. A solid mechanical lock impedes the opening of the engine cover, thus avoiding possibilities of sabotage and tampering.


Thanks to the reliability of the components and the pump’s low rate of rotation, the S8 SMART’s performance are at the top of the range, guaranteeing you many working hours without any problems.


S8 Smart S8 Smart with mixer
Petrol powered electricity generator
Honda engine with electric starter  Gx 390 OHV  Gx 390 OHV
power  9,6 (13C V) kW  9,6 (13 CV) kW
generator power  8 kVA  8 kVA
Diesel powered electricity generator
Lombardini engine with electric starter  15 LD 400  15 LD 400
power  8,2 (11 CV) kW  8,2 (11 CV) kW
generator power  6 kWA  6 kWA
power  1,5 kW  1,5 kW
output  250 l/min  250 l/min
pressure  4 Bar  4 Bar
Screw pump
max theoric output  0 a 20 l/min  0 a 20 l/min
max granulometry  10 mm  10 mm
max theoric pressure  15 Bar  15 Bar
Conveying distance
horizontal*  40 m  40 m
vertical*  15 m  15 m
Overall dimensions
lenght  240 cm  205 cm
width  120 cm  120 cm
height  140 cm  140 cm
filling height  50 cm  110 cm
capacity  80 l
power  0,75 kW
Mortar hopper  120 l  100 l
Weight  455 Kg  498 Kg

* These distances are non-accumulable
* Depending on mortar used, consistency and hose diameter

S8 Smart bomba para argamassa

Lanzado de mortero – S8 smart BUNKER

Adeguamento sismico – BUNKER S8 smart