Push-Pull keevitusventilatsioon - Elister

Push-Pull welding ventilation

Push-Pull welding ventilation for large industrial spaces

Push-Pull welding ventilation is the ideal solution for production facilities where welding is carried out on large structures or scattered throughout the production floor - where a spot-ventilation system is not spatially feasible. Elister designs and installs Push-Pull systems as a tailor-made solution, adapting them to the specific production layout, welding method and dust load level. The piping is connected to a filtration system where the welding fumes are filtered through special filters and the clean air is returned to the production line.

The main components of the Push-Pull system

  • “Push” channel: Creates a directional air flow that reverses the direction of the welding fumes and directs them towards the exhaust. To be mounted on the opposite side of the extraction unit.
  • “Pull” channel: Collects and automatically filters welding fumes using a cleanable filter. Collection tanks for filters ensure clean operation.
  • Filter system: Push-Pull systems use Gram Clean Air FL, ACF or HCF series dust filters with automatic pulse cleaning - ensuring continuous operation without interrupting production.
  • Management system: The automation controls the Push-Pull system as a whole, reacting and ensuring optimal airflow throughout the entire production floor.

Frequently asked questions

When is Push-Pull ventilation the best choice?

Push-Pull is suitable for welding on large structures (ships, frames, metal structures) where the extraction arm is not suitable or the cube does not extend to the welding area. It is also suitable for large open production halls where workplaces are constantly changing.

Does the Push-Pull ensure adequate dust capture?

Yes - a well-designed Push-Pull system can catch 90-95% welding sparks. The efficiency of the system depends on the distance between the pressure transducer and the pick-up and the airflow balance, which Elister calculates for each project. As a result, the piping needs to be cleaned once a year.

Does the system circulate air back into the room?

Yes - clean, filtered air is recirculated back into the production room, reducing heating costs. This is an important advantage in winter climates, where heat recovery brings significant savings on heating bills.