Filter Bag like SPÄNEX 2000 mm D=200 mm, Filter Felt BIA/IFA "M", Snap Ring, NEW, Made to Order

More material where it matters. Our filter felt weighs 470 grams per square meter and is 1.4 millimeters thick. That is considerably more than many low-cost replacement filters. You can feel it right away: the felt is firm and dense instead of thin and papery.

In operation the bag carries the full weight of the dust cake, and it is shaken abruptly with every cleaning cycle. A heavy felt does not bulge, the pores do not widen, and the bag keeps its shape for years. The measured tensile strength is over 1,400 N per 5 cm lengthwise – mathematically equivalent to a pull of about 140 kg (approx. 310 lb) on a hand-wide strip.

The snap ring is embedded, not sewn on. In our bags a spring ring sits firmly in the folded, stitched hem of the felt. It presses against the cell plate from the inside, keeps the bag sealed and is easy to squeeze together when changing bags.

Other versions use a plastic ring sewn on the outside. Over the years plastic loses its plasticizers, becomes brittle and eventually cracks under constant tension – the bag drops out of the plate even though the felt is still good. Our version does not have this weak point.

The longitudinal seam is also built for continuous operation: welded or triple-stitched with polyester thread.

The bag is made for SPÄNEX dust collectors and comparable systems with cap suspension and snap ring. Three dimensions determine the fit:

• Diameter – here 200 mm (the cell plate hole is 197 mm)
• Overall length – here 2,015 mm (effective length 2,000 mm)
• Flat width – lay the bag flat and measure across: here 314 mm inside, 316 mm outside

Not included: cell plate 197 × 2 mm and other accessories. The same version is also available with 2,500 mm and 3,000 mm effective length; other lengths, diameters or grades are available made to order on request.

Filter media of dust class "M" are approved for hazardous dusts, which include wood dust. The test verifies that less than 0.1 % of the dust passes through the filter. The IFA certificate for this media is valid until Sept 24, 2027.

BIA or IFA – they mean the same thing. Many people still know the dust class as "BIA 'M'". The testing institute used to be called BIA (the German employers' liability insurance institute for occupational safety), became BGIA in 2003 and is now IFA – the Institute for Occupational Safety and Health of the German Social Accident Insurance (DGUV). Current test certificates therefore carry the IFA name; "BIA 'M'" and "IFA 'M'" refer to the same dust class. Explained in detail in our article: BIA "M", IFA "M", dust class M →

The calendered surface is slightly compacted and smoothed. As a result, the dust cake builds up mainly on the surface instead of migrating into the fibers – cleaning is easier, differential pressure stays lower and the fan uses less power.

Important: This media is not antistatic. If your system requires an antistatic version, we make it on request – please contact us before ordering.

Made to order in Germany – this filter bag is not a stock item. Lead time on request; please contact us before ordering. Once finished, it ships via FedEx or UPS; transit to the US typically takes 2–5 business days with full tracking. US import duties are not included in the price and are collected by FedEx/UPS on delivery.

Shipping, duties and warranty at a glance: Shipping to the USA.