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Ring filter bags with plastic collars


Our ring filter bags with flexible plastic collars provide a perfect fit.

Our ring filter bags with flexible plastic collars provide a perfect fit.

Our proven filter bags with plastic collars adapt to the filter housing, providing a reliable, chemically resistant seal. The bags have two built-in handles, which allow for easy installation and removal.

Our filter bags with plastic collars are manufactured in Germany from various low-silicone materials. We offer filters for all your filtration needs, including acidic-medium filtration, base or alkaline filtration, high-temperature filtration as well as filtration for gelatinous particles, solids and aerosols.

We offer filters made of the following materials:

Needle felt:

  • Polyester needle felt
  • Extended life polyester needle felt
  • Polypropylene needle felt
  • Extended life polypropylene needle felt
  • Polyamide needle felt (Nylon)
  • Nomex® needle felt

Sieve textile / Mesh:

  • Polyamide mesh monofilament (Nylon)
  • Polyester mesh monofilament
  • Polypropylene mesh monofilament
  • Polyamide Carbon mesh monofilament
  • PTFE / ETFE mesh monofilament

The collars can be made from the following materials:

  • Polypropylene
    • Schwegmann standard or equivalent to standards of relevant competitors
  • Polyester
    • Schwegmann standard or equivalent to standards of relevant competitors
  • Santoprene™

Filter bags with declaration of conformity

Upon request, we are happy to offer filter bags with a declaration of conformity relating to the German Foods, Consumer Goods and Feedstuffs Code in accordance with EU regulations on food-contact applications (EC) No 1935/2004 and 10/2011 as well as GMP good manufacturing practices (EC) No 2023/2006.


Order your free filter samples now!


Filter bags with flexible plastic collars in many sizes – for all commonly available bag filter housings

These ring filter bags are equipped with a plastic collar that easily adapts to any commonly available filter housing. This guarantees a secure fit and a reliable seal.

Extended-life filter bags (type 4)

Extended-life filter bags last longer and are fully welded by default. They reduce downtime and do not need to be replaced as often. Compared to standard needle-felt filter bags, extended-life filter bags mean lower energy costs as well as lower costs for the disposal of used filter bags.

Handles for easy installation and removal

Thanks to two handles that are integrated into the collar, our filter bags can be easily installed and removed from the filter housing.

Needle-felt filter bags for reliable single-use filtration

Ring filter bags made from needle felt reliably filter gelatinous particles and offer depth filtration. Needle-felt filter bags are designed for single use only, as the felt traps dirt and particles and cannot be cleaned.

Fully welded filter bags for filtration without bypass

These filter bags have fully welded seams (along their length, across their bottom and around the plastic collar itself) to prevent bypasses at potentially vulnerable spots.

High-quality filter bags, custom-made for your needs

At Schwegmann, we have been providing our customers with high-quality filter products and accessories for many decades. We take our responsibility seriously and work with you to develop environmentally-friendly filtration solutions that meet your specific needs and are ideally suited to the liquids you use.

If you would like to know more about our products and services, such as our filter cartridges and fast delivery, do not hesitate to contact us. We are your trusted partner for all your filtration needs at every step on the way: starting with professional consultation and continuing to the order and delivery of your products. Get in touch – we look forward to hearing from you!


Filter mediumFilter finenessSizeCollar

Sizes in cm


Filter medium

Filter mediumCodeFilter fineness / Mesh opening in microns
Polyester needle feltPE
Polypropylene needle feltP
Polyamide monofilament (sewn)PA


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You would like to get an offer?

Teilen Sie uns Material, Größe und Anzahl mit und wir erstellen Ihnen umgehend ein unverbindliches Angebot.

You need something concrete?

You need something concrete?