The process is simple - A Suction or Vacuum Excavator (see diagram below) generates a high volume flow of air by means of its single/twin/triple or even quad air fans.

Suction Excavators (Sometimes known as Vacuum Excavators) use the flow of air to draw material up through the intake nozzle depositing it in the container.

The suction power created by the on-board fan system (twin, triple or quad fan power options) allows these machines to safely excavate the material around buried services without coming into contact or damaging the service.

Force One Ltd also offer additional solutions such as extension pipes and Remote units for the more demanding jobs, for more information please visit our Remote Units page or contact us on 01354 655441.

1. Fan system creates the airflow

The on-board fan system creates an airflow from the intake nozzle, through the container, then through the filter system, then finally through the fan system and out the top of the Suction Excavator through the sound absorbing unit.

2. Material is drawn up through the intake nozzle

The airflow created by the fan system draws material up through the 250mm diameter nozzle. This eliminates the need to come into contact with the buried service maximising the safety of the operative and the service itself.

3. Operative controls the intake nozzle with remote control

The operative is then able to direct the intake nozzle via a remote control. This gives them full control of the point of excavation from a safe position.

4. Material is deposited in container

Material is then deposited in the container located at the rear of the Suction Excavator/Vacuum Excavator. This container stores the material and can hold between 7 and 10m3 (depending upon machine). Smaller soil particles are collected within two smaller containers next to the container.

5. Air is filtered

Finer particles and dust are then captured in the bank of micro mesh filters separating all material from the air.

6. Air exits the Suction Excavator

This air then passes through the fan system and out through the sound absorbing unit located on top of the Suction Excavator

7. Material is side tipped from container

Once the Suction Excavator's container is full, material is side-tipped (drivers side). Material is able to be tipped as a spoil heap or directly into a skip. With the high tip option, material is able to be tipped directly into muck away/grab lorry. With the bagging option, material can be tipped directly into a bag hopper. Once the bag hopper is full, the hopper is lifted up using a telehandler and material is released into suitable bags for storage.

daigram showing how suction excavation works

Benefits of Suction Excavation

  • Eliminates utility/service strikes
  • Maximises safety of Operatives
  • Minimalizes manual handling
  • Reduced size of excavation – minimises waste
  • Faster and more efficient than conventional hand dig or mini excavators
  • And much more…

For more information please visit our Suction Excavator Advantages page or call us on 01354 655441.

See it in action…

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Force One Limited. Company registered in England. Registration number 5293964. Registered address; 24 Longhill Road, March, Cambridgeshire. PE15 0BL