Vacuum trailer

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  • Easy control
  • Powerful suction force
  • Ergonomic

The KOKS EcoVac Trailer stand-alone vacuum trailer, equipped with a heavy duty industrial diesel engine, is designed for (heavy) industrial applications and is suitable for suctioning, transporting and discharging fluid and substances, such as liquids, sludge, fats, oils, fuels and chemicals. Specially developed for working with hazardous and contaminated substances, the trailer is available in PED, ADR (CEOC) and or ATEX (Ex) 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 EcoVac Trailer stand-alone vacuum trailer is perfect for day-to-day suction, discharge and transportation activities, general industrial cleaning or for use in the (petro)chemical industry and in refineries.


The trailer operates as a completely independent stand-alone unit with its own diesel engine power pack. The large pressure/vacuum tank has the advantage of reducing the number of trailer movements. The powerful liquid ring vacuum pump allows large quantities of (fluid) substances to be processed in a short time and then loaded, unloaded and transported in accordance with current ADR (CEOC) legislation. The user benefits from significant time savings and a huge reduction in cost.


The KOKS EcoVac Trailer stand-alone vacuum trailer can be fitted with various tank volumes and option kits that are appropriate for your needs and for industrial applications. Furthermore, a vacuum system on the tractor unit is possible.

Safety information

Safety information


  • Easy control.

  • Stand-alone with its own diesel engine power pack.

  • Powerful suction force.

  • Tank made of stainless steel.

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

  • Ergonomic.

  • Large pressure vacuum tank for fewer trailer movements.

  • Built to the latest environmental and safety standards.

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

  • Responsible transportation in accordance with ASME - 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 3-axle trailer chassis; chassis in combination with a 16 tonne kingpin.
  • transportation of hazardous substances.
  • PED - ADR (CEOC) requirements (for specifications refer to option KE•15).
  • tank codes S4AH and L4AH.

Pressure vacuum tank

23 m³, excl. the service water tank.
stainless steel AISI 316 grade; material no. 1.4404.
Rear door
hydraulically opening and bolting.
by means of tipping and pressurizing.
by means of suctioning.
6” suction/discharge connections with ball valve.

Service water tank

On behalf of
cooling the liquid ring vacuum pump.
1 m³.
stainless steel.
hinged exhaust stack.

Vacuum pump

liquid ring.
3,400 m³/h.
Max. vacuum
completely stainless steel, provided with filter.
mechanical from a diesel engine with driveshaft and V-belt transmission.


rotary vane pump.
200 m³/h, 2.5 bar overpressure.


3-axle tipper chassis with a steered 3rd axle.
3 axles, 10 tonne legal limit.
equipped with air suspension and 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 front, positioned at the trailer front.
support legs.

Diesel engine

On behalf of
vacuum pump drive.
Caterpillar C4.4 Stage 5 (option C7.1 Stage 3).
Power output
approx. 129 kW (175 Bhp).
shut-down valve (Chalwyn).
exhaust system with spark arrester.


approx. 11,200 mm.
approx. 2,550 mm.
approx. 3,960 mm.


Empty weight
approx. 19 tonnes, excl. trailer chassis.
Coupling pressure
max. 16 tonnes, depending on the regulations in the country of destination.
Max. permissible weight
approx. 42 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, tip unbolting protection, repair cross beam, catwalk, rear door 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/toolbox.
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.