MistBeam · MSC20
The MistBeam that travels
20 to 25 m of throw in a package small enough to put on the back of a truck, on a towed trolley, or up on a platform — and a rotating joint built to survive being driven around a site. The smallest machine in the range that still covers a working area rather than a single point.
Throw, in windless conditions (20 – 25 m)
Nozzles in the ring
Powered rotation
Chemicals — it suppresses with water
A short-range fog cannon for dust that will not stay still
The MSC20 is the compact end of the MistBeam range: 11,700 m³/h through fifteen nozzles, throwing 20 to 25 m in windless conditions. That is the right amount of machine for a loading point, a tipping bay, a transfer area or a small yard — places where a 70 m cannon would be throwing most of its fog over the boundary.
What makes it the one people put on vehicles is the rotating joint. It turns on a slew bearing of the type used in excavators, which is a far more rigid and far more forgiving joint than the ball-bearing arrangement a machine this size would normally get. Mining and construction roads are uneven; a plain rotating joint does not last on them, and this is the difference between a unit that can be driven to the work and one that has to be craned into place and left.
It rotates a full 360° under power and tilts from −5° to +45°, so it can be aimed down into a tipping point from an elevated platform or up across a stockpile from ground level. The swing is programmable between two limits, and it runs from the panel or the remote.
It is one model in a range of eight. If you are not sure this is the right size, the sizing tool on the MistBeam page takes the area you need to cover and returns a model, a number of units and a configuration.
Specification
MSC20 at a glance
Throw is a band because a fog cannon reaches its top figure in still air and less into a headwind; MSC20 is quoted for windless conditions.
Dimensions, weight, booster pressure and generator sizing are issued with the quotation, against the configuration you choose — they follow the mounting, not the cannon.
| MSC20 | |
|---|---|
| Throw, in windless conditions | 20 – 25 m |
| Airflow | 11,700 m³/h |
| Fan motor | 2.2 kW |
| Booster pump motor | 1.5 kW |
| Nozzles | 15 |
| Rotation | 360°, powered — fixed-direction versions available |
| Tilt | −5° to +45° |
| Water | Filtered; mains, tanker or settled site water |
| Chemicals | None — it suppresses with water |
How it is built
Built to be moved and still point straight
The MSC20 shares the range's controls and water train; what it adds is a rotating joint that tolerates being driven around.
A slew bearing, not a bearing block
The cannon turns on the same kind of slew bearing an excavator turns its house on. That matters most on the machines that travel: a haul road will destroy a plain ball-bearing rotating joint, and the slew ring is the reason a unit can be driven around a site and still point where it is told.
Set the sweep and leave it
Rotation is 360° under power, and the swing is programmable: set a left limit and a right limit and the machine sweeps between them until someone stops it. Manual or automatic, from the panel or the remote.
The panel is outside the rotating part
It can be reached while the machine is running, which sounds obvious until you meet one where it cannot. There is a remote for the rest, and an emergency stop that kills the whole machine rather than just the fan.
A stainless steel pump
The pump raises the water to the pressure the nozzles need to break it into droplets small enough to catch dust. Stainless because the water on a dust-suppression job is rarely clean water, and because the whole machine lives outdoors.
Quick-change stainless nozzles
Fine nozzles are the one part of a fog cannon that is genuinely consumable, and they are the part that suffers when someone skips the filter. They come out and go back in by hand.
A water cut-off valve
Fitted on every model. It is what lets a unit run unattended without emptying a tank onto the ground when the fan stops.
Configurations
Four ways to carry it — and it suits all four
The MSC20 is the most mountable machine in the range, which is the main reason to choose it over something with more reach: at 2.2 kW of fan and 1.5 kW of pump it will run off supplies and generators the bigger models will not.
Truck-mounted
On a water tanker, so it refills itself and follows the work. The same tank and pump will also drive a road washer for haul roads and a water cannon for washing down plant — three jobs off one chassis.
Trolley with water tank
The cannon and an onboard tank on a towable four-wheel chassis, drawing power from a site supply. Tow it to the work, park it, plug it in.
Trolley with water tank and diesel generator
The same trolley with a generator alongside the tank, so the unit owes the site nothing — no cable, no hydrant. The configuration most often taken on hire.
Standalone
Bolted down and fed from the site's own water and power — on the ground, on a fabricated stand, or up on a gantry, bund or plant roof so the fog falls into the dust rather than under it.
On a tanker
One chassis, three jobs
Put it on a water tanker and the cannon refills itself and goes wherever the truck goes. Because the truck carries a pump and a full-pressure water system anyway, the same tank will also drive a road washer for haul roads and a water cannon for washing down plant and spillage.
- Fog cannon, road washer and water cannon off one tank and one pump
- Roughly 5 to 7 m of width per pass on road and surface wetting
- Tank size follows the chassis you supply — coverage and run time are yours to set
- The slew bearing is what makes this survivable on a haul road
Where it goes
What a 25 m machine is for
Dust sources with a boundary close by, and dust sources that move.
Loading and tipping points
Where material leaves one thing and enters another — the single most reliable place to catch dust before it spreads.
Transfer areas and small yards
Enclosed or semi-enclosed ground where a long-throw machine would put most of its fog somewhere you do not own.
Haul roads, on a truck
Road dust travels with the vehicles, so the suppression has to as well. This is the configuration that does it.
Elevated discharge
On a platform or gantry, tilted down into the plume. Fog falls; getting above the source beats reaching across at it.
Wagon and truck tipplers
A fixed, violent, repeatable dust event in a known place — ideal for a small machine aimed properly and left on a programmed sweep.
Hire and short projects
Small enough to move between jobs, and the configuration with its own tank and generator can be dropped anywhere a truck reaches.
Questions we get
MSC20, answered plainly
How far does the MSC20 actually throw?
20 to 25 m in windless conditions. That last part is not a formality — throw is the one figure on a fog cannon that the weather can halve, so we publish a band and size against the distance you need on a normal day rather than a still one.
Can it really go on a truck?
Yes, and it is the model most often mounted on one. The rotating joint is a slew bearing of the kind used in excavators, which is what survives haul-road vibration; a plain ball-bearing joint is what fails. Tank size follows the chassis you supply.
What does it tilt to?
−5° to +45°. That range is what lets one machine aim down into a tipping point from a platform and up across a stockpile from ground level.
Does it need someone standing by it?
No. Set a left and a right limit and it sweeps between them until stopped, from the panel or the remote, in manual or automatic mode. The water cut-off valve is what stops an unattended machine running a tank dry, and there is an emergency stop that kills the whole unit.
How does it compare with the bigger models?
It is the same machine philosophy at a smaller size: 11,700 m³/h against the MSC50's 42,984 and the MSC80's 81,671. Airflow, not pressure, is what buys distance. If you need more than 25 m, start from the range table and sizing tool.
Can we hire one?
Often the sensible answer for a single project or a demolition phase. The trolley configuration with its own tank and generator hires best because it needs nothing from the site. Tell us the duration and we will point you at the right arrangement.
Downloads
The MistBeam brochure
The whole MSC range including the MSC20, with the performance table as issued.
Get a quote
Tell us what the MSC20 would be working on
The dust source, the distance you need to cover, and what water and power you can get to that spot. We will come back with a configuration and a price — and say so if a different model in the range fits better.
Not sure this is the right size?
The range runs from 10 m to 100 m, and the sizing tool on the MistBeam page takes the area you need to cover and returns a model, a number of units and a configuration.