Vacuum unit

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  • Easy to transport
  • Self-supporting
  • Powerful suction force

The KOKS EcoVac Loader self-supporting vacuum unit, without a chassis and powered by an industrial diesel engine, is designed for (heavy) industrial applications and is suitable for suctioning, discharging and transporting fluid and hazardous substances, such as liquids, sludge, fats, oils, fuels and chemicals. Specially developed for working with hazardous and contaminated substances, the unit is available in PED or ADR (CEOC) versions and built in accordance with all applicable safety standards.

The KOKS EcoVac Loader is self-supporting and is not fixed on a chassis, but is equipped with an offloading system. The Loader frame is based on a 20 ft container system and equipped with an integrated hook lift frame and hoisting arrangement (option) for placing on a trailer, chassis or other transport system.

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 Loader is a self-contained vacuum unit which, without the use of a chassis, 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.


With its powerful liquid ring vacuum pump, large quantities of (fluid) substances can be processed in a short time. The user benefits from significant time savings and a huge reduction in cost.


The KOKS EcoVac Loader self-supporting vacuum unit can be fitted with various option kits that are appropriate for your needs and applications.

Safety information

Safety information


  • Easy to transport on a chassis, semi-trailer or other transport system.

  • Self-supporting (chassis-independent).

  • Container frame equipped with hook lift point.

  • Easy control.

  • Ergonomic.

  • Built to the latest environmental and safety standards.

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

  • Powerful suction force.

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

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

Designed and certified for

  • placement on a 20 ft container frame, equipped with hook lift point.
  • transportation of hazardous substances.
  • PED - ADR (CEOC) requirements (for specifications refer to option KE•15).
  • tank codes S4AH and L4AH.

Pressure vacuum tank

12 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 or through the manhole on top.
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.

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.

Container frame

reinforced 20 ft ISO container frame with hook lift attachment point.
Corner casting
according to standard 20 ft container frame.
Unit compartment
on behalf of the pump/engine combination, sound insulated, incl. access doors with ventilation grilles on both sides and at the front.
the longitudinal beams of the lift frame must be supported during transportation on the semi-trailer or trailer.


approx. 7,500 mm.
approx. 2,550 mm.
approx. 2,675 mm.
Height hook lift attachment point
1,400 mm.
suitable for a 20 ft container chassis.


Empty weight
approx. 10.8 tonnes, excl. chassis.
Max. permissible weight

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 and stainless steel control box/hose box/ tool box.
Body inspection
arranged by KOKS Group.
Construction 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.