Self-supporting air displacement trailer

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  • Large pressure/vacuum tank
  • Large filter surface area
  • Ideal weight/axle load distribution

The KOKS MegaVac Trailer self-supporting air displacement trailer with a large tank volume is designed for (heavy) industrial applications and is suitable for suctioning, displacing and transporting large quantities of dry, wet and hazardous substances, such as various types of catalyst, (roof) gravel, powders, fly ash and sludge. Specially developed for working with hazardous and contaminated substances, the trailer is available in PED or ADR (CEOC) versions and built in accordance with all applicable safety standards.

Do you have any questions about KOKS products or would you like to receive more information?
If so, please contact the KOKS sales team via telephone number +31 (0) 72 540 66 99 or via e-mail request@koks.com.


The KOKS MegaVac Trailer with a large tank volume is the perfect self-supporting air displacement trailer for day-to-day suction, displacement and transportation activities in the construction and (petro)chemical industries and for all general industrial applications.


The powerful tri-lobe blower gives the KOKS MegaVac Trailer self-supporting air displacement trailer a very high suction and displacement capacity, which makes it possible to process and transport large quantities of dry materials, liquids, gravel, sand, etc. in a very short time. The user benefits from significant time savings and a huge reduction in cost.


The self-supporting KOKS MegaVac Trailer air displacement trailer can be fitted with various option kits that are appropriate for your needs, and for industrial and cleaning applications.

Safety information

Safety information


  • Easy control.

  • Can be used on a stand-alone basis with its own diesel engine drive.

  • Suction with 8,100 m³/h, max. 96% underpressure; blowing with 1,050 mbars overpressure.

  • Large filter surface area (40 m²).

  • Ideal weight/axle load distribution in combination with a tractor chassis.

  • Ergonomic.

  • Built to the latest environmental and safety standards.

  • Approved in accordance with PED or ADR (CEOC) European type-approval.

  • Large pressure/vacuum tank for fewer driving movements.

  • Responsible transportation in accordance with ADR (CEOC) regulations.

  • Solid construction and components for high power and maximum payload.

  • High quality, long service life and economical purchase price.

Designed and certified for

• assembly on a 2-axle widespread trailer, in combination with 12 tonne kingpin.
• suctioning, displacing and transporting dry and wet substances, such as sludge, sand, (roof) gravel, fly ash, powders and various types of liquids.
• PED (Pressure Equipment Directive) in accordance with 2014/68/EU directive.

Pressure/vacuum tank

16 m³, excl. filter chamber.
stainless steel AISI 304 grade, material no. 1.4301.
Rear door
hydraulically opening and bolting.
by means of tipping (45°) or air displacement.
by means of suctioning.
6” suction connection, provided with an 8” elbow with replaceable Hardox wear resistant plate.
blowing cover (no quick-exchange system).
level detectors.

Filter chamber

Filter cover
hydraulically opening and manually bolting.
Filter surface area
40 m².
Filter plate
stainless steel.
Filter cleaning
by means of an air shock cleaning system.
Partition hatch
between the filter chamber and pressure/vacuum tank.
for emptying the filter chamber.
operated hydraulically from the outside.
side manhole.
level detectors.
stainless steel filter racks with coated, antistatic, polyester needle felt filter bags.

Vacuum pump

Roots blower.
Air displacement
max. 8,100 m³/h (220 kW).
Max. vacuum
Max. overpressure
1,050 mbars.
mechanical from a 6-cylinder diesel engine with driveshaft and V-belt transmission.


2-axle widespread semi-trailer chassis with a steered 2nd axle.
2 axles, 10 tonne legal limit.
air suspension with disc brakes.
Rear bumper
according to EU standards.
Electrical system
connected according to EU standards.
Brake system
according to EU standards, incl. EBS/ABS.
Unit compartment
on behalf of the pump/engine combination, sound insulated, incl. access doors with ventilation grilles on both sides and at the trailer front.
support legs.

Diesel engine

On behalf of
vacuum pump drive.
Caterpillar C9.3 Tier 4 Final (option C9 Tier 3).
Power output
approx. 241 kW (328 Bhp).
shut-down valve (Chalwyn).
exhaust system with spark arrester.


approx. 10,500 mm.
approx. 2,520 mm.
approx. 3,970 mm.


Empty weight
approx. 17.2 tonnes, excl. trailer chassis.
Coupling pressure
approx. 12 tonnes, depending on the regulations in the country of destination.
Max. permissible weight
approx. 32 tonnes, chassis-dependent.

Standard safety provisions

Consisting of:

rupture disc, hose rupture safety valves on behalf of the rear door and tipping cylinder, beacon light, emergency stop, repair cross beam, catwalk, clamp protection, earth reel, emergency stop reel, rear door protection, tipping protection and powder extinguisher.


working light, rear bumper and stainless steel control box/hose box/tool box.
Body inspection
arranged by KOKS Group.
Instruction manual
consisting of operating/maintenance instructions, drawings and schedules.

Need thorough advice?

We can imagine that you would like to know more about our products, the fields of application and our company.


Make an appointment without obligation to get to know us and our extensive range of industrial cleaning machines.


We will be more than willing to tell you why thousands of professionals worldwide trust KOKS Group and KOKS equipment.


You can contact us by calling +31 (0)72 540 66 99, by emailing info@koks.com or by filling in the contact form via the link below.


On working days we are available between 07.30 and 17.00 and we are happy to be of service.


As a producer and supplier of cleaning equipment, KOKS Group has gained a reputation as a reliable, innovative partner for the industrial sector.


KOKS is not only a strong player in the Netherlands and Europe, but our machines are finding their way around the world.


KOKS Group exists for 30 years and is a dynamic family business with seven specialized subsidiaries in the Netherlands, the Czech Republic, Saudi Arabia and the United States. The company also holds shares in rental organizations that operate in the Netherlands and the United Kingdom.