Filter structures
Different filter structures and materials make countless alternative solutions possible, providing the best solution for many different applications. Here are some of the most common structures.
![M_FILTER-muovikehyksiset_001_v1 Muovikehystetyt](https://m-filter.fi/wp-content/uploads/2022/02/M_FILTER-muovikehyksiset_001_v1.jpg)
Plastic-framed cassettes
A structure solution suitable for small series, a durable and light structure.
![M-FILTER-Metallikehyksiset_001_v3 Metallikehyksiset kasetit](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-Metallikehyksiset_001_v3.jpg)
Metal-framed cassettes
Good heat resistance in high usage temperatures, strong structure.
![M-FILTER-Reunanauharakenne_001_v1 Reunanauharakenteiset](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-Reunanauharakenne_001_v1.jpg)
Side strip structured cassettes
Simple, cost-effective and light. Easy to recycle, the most environmentally friendly structure solution.
![M-FILTER-pussisuodatin_001_v1 Pussisuodattimet](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-pussisuodatin_001_v1.jpg)
Bag filters
Made with a metal, plastic and wood frame. The most popular filter structure in large ventilation machinery.
![M-FILTER-kompalktisuodattimet_006_v1 Kompaktisuodattimet.](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-kompalktisuodattimet_006_v1.jpg)
Compact filters
A more developed alternative for bag filters when you want the best energy class. Especially suitable for demanding applications.
![M-FILTER-Uretaanipäätyinen_001_v1 Uretaanipäätyiset.](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-Uretaanipäätyinen_001_v1.jpg)
Urethane ends
A cost-effective structure solution.
![M-FILTER-metallipäätyiset_001_v1 Metallipäätyiset](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-metallipäätyiset_001_v1.jpg)
Metal ends
Sturdy structure that endures higher temperatures.
![M-FILTER-muovipäätyiset_001_v1 Muovipäätyiset.](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-muovipäätyiset_001_v1.jpg)
Plastic ends
An excellent choice as an economical structure solution for a larger production volume. Easy to recycle.
![M-FILTER-Uretaanimoniomuoto_001_v1 Monimuotoinen uretaani](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-Uretaanimoniomuoto_001_v1.jpg)
Multifunctional urethane end
Urethane enables the manufacture of diverse and even more special shapes and structures.
![M-Filter-Uretaanipaneeli_001_v1 Uretaanipaneeli.](https://m-filter.fi/wp-content/uploads/2022/02/M-Filter-Uretaanipaneeli_001_v1.jpg)
Urethane panel
A traditional structure solution for panel filters where the structure comes with a seal. Can be sorted into energy waste.
![M-FILTER-keinokuitupäätyinen_001_v1 Keinokuitupäätyinen.](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-keinokuitupäätyinen_001_v1.jpg)
Synthetic fibre ends
Light and easy to make. The most environmentally friendly structure.
![M-FILTER-patruuna_006_v1 Patruuna.](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-patruuna_006_v1.jpg)
Cartridges
Used for oil, fuel and hydraulic filters. An alternative structure for spin-on filters.
![M-FILTER-patruuna-spinon-yla-001_v1 Spin-on rakenne.](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-patruuna-spinon-yla-001_v1.jpg)
Spin-on structure
Used as structure for oil, fuel and hydraulic filters. The spin-on structure makes customer-specific labels and branding possible. Ask more from our sales team.
![M-FILTER-räätälöity-erikoissuodatin_001_v1 Räätälöidyt erikoissuodattimet.](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-räätälöity-erikoissuodatin_001_v1.jpg)
Tailored special filters
Our production makes customer-specific demands and structures possible that help us create more special and challenging solutions.
![M-FILTER-Uretaanireunainen-tasosuodatin_001_v1.jog Uretaanireunainen tasosuodatin.](https://m-filter.fi/wp-content/uploads/2022/02/M-FILTER-Uretaanireunainen-tasosuodatin_001_v1.jog_.jpg)
Urethane-framed panel filter
With the flexible structure, it can be fitted even in tight places.
Filter materials
When we tailor a filter designed for OEM production, the desired filter results and the requirements of the device or environment affect our choices of materials. For example, certain coatings can extend the filter’s life, etc. We use the best European filter materials.
![Materiaali_keinokuitu001 Keinokuitumateriaalit.](https://m-filter.fi/wp-content/uploads/2022/02/Materiaali_keinokuitu001.jpg)
Synthetic fibre materials
Synthetic fibres offer many different material alternatives, such as:
- Polyesters and polypropylenes
- Teflon-coated materials
- Oleo-hydrophobic treatment
- Bulpren, pre-filter wadding
- Antistatic synthetic fibres
- Nano-fibre materials
![Materiaali_lasikuitu_1 Lasikuitumateriaalit](https://m-filter.fi/wp-content/uploads/2022/02/Materiaali_lasikuitu_1.jpg)
Fibreglass materials
The most common material forms of fibreglass are:
- pleated fibreglass mats
- fibreglass fabrics
![Materiaali_sellu_068 Sellupohjaiset materiaalit.](https://m-filter.fi/wp-content/uploads/2022/02/Materiaali_sellu_068.jpg)
Cellulose-based materials
Cellulose-based materials can be refined by coating, for example, as follows:
- With nano-coatings and, for example, by blowing plastic over cellulose fibres (meltblown) you can improve the filter’s efficiency and energy class, and reduce the initial pressure drop.
Do you need help with filters?
M-Filter Group has the ability and capacity, whether you are interested in OEM-production or ordering aftermarket filters – how may we help you?