MFD Spare Parts FAQs
Straight answers to the questions people ask most when choosing spare parts for a mobile fume and dust filter unit.
When should the filter cartridge be replaced?
Replace it when airflow remains low after any cleaning the unit allows, when the pollution indicator shows the filter is loaded, or when it is damaged or wet.
The interval depends on the amount and type of dust and fume and how many hours the unit runs, so it varies a lot between users.
What does the filter pollution indicator tell me?
It shows how much resistance the filter is giving to airflow, which rises as the filter loads up. When it reaches the marked zone, the filter is due for attention or replacement.
If the reading never changes or looks wrong, check the indicator and its connections, as it may be faulty.
What is the spark arrestor for?
In welding, hot particles can be drawn into the hose and reach the filter. A spark arrestor catches larger sparks before they land on the media, reducing the risk of damage or a smouldering filter.
Keep it clean and replace it if damaged, as a blocked one reduces airflow.
How do I choose the right motor or fan wheel?
Always take the details from the data plate and parts list for your own unit. The motor must suit the voltage, phase and frequency of your supply, and the fan wheel should be the type specified for that motor and unit.
Supply frequency matters because it changes motor speed, and a wrong match can overload the motor or give poor airflow. Check the manual or ask our team before ordering. Motor replacement should be done by a competent person.