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WeBaX sieve bags

Used for open filtration of smaller batches

Sieve and filter bags by Schwegman are the German original. They were invented and patented in the 1960s by Bernd Schwegmann, who called them “sieve sachets”. Made from polyamid monofilament and needle felt, sieve and filter bags are durable and perfectly suited for filtering liquids. They are used primarily in industrial operations, such as in the production of paints, varnishes, cosmetics, foods and pharmaceuticals as well as in filtration systems where no filter housing is available or converting filtration units would be too expensive.

Sieve bags – reusable, flexible and easy to clean

Sieve bags are made from monofilament textile and are perfectly suited for filtering solid particles. Thanks to the drawstring sewn into each bag’s opening, they can be installed quickly and easily at any outlet without the need for tools. Additional aids for installation, such as straps and cable ties, are available upon request. Sieve bags can be replaced quickly and easily for any product change. Our large selection of different mesh sizes allow for high flow rates and versatility. Depending on your use case, the bags can be cleaned and used multiple times. We also offer custom-tailored sieve bags for your needs in any size, shape and quantity.

White mesh drawstring bag with ribbon ties, lying on a plain gray background.

Needle-felt filter bags for depth filtration

A white mesh medical implant pouch with two white ribbon-like strips beside it on a gray background.

Needle-felt filter bags are ideal for filtering gelatinous particles. These bags can only be used once as the particles get caught in the felt, which cannot be cleaned.

Sieve bags for filtering foods (declaration of conformity)

High quality and safety are of the utmost importance to us. We offer sieve bags with a declaration of conformity for use in the food and animal feed industries. These bags are manufactured and packed in accordance with EU regulations 1935/2004 and 10/2011. They are certified for food-contact applications and meet high product-safety standards.

Close-up of a white fabric corner with visible stitching along the edges.

Double-layer sieve bags for exact results via depth filtration

Close-up of a white mesh fabric with reinforced stitched edges on a plain background.

Double-layer sieve bags are the right choice for applications that require more than one filter layer, a supporting media or filtering both solid and gelatinous particles. Where regular filters are not sufficient, double-layer sieve bags produce convincing results thanks to depth filtering.

Antistatic sieve bags for reducing electric discharge

Antistatic sieve bags are used for filtering materials that are electrostatically charged. The electrically conductive strands sewn into the filter mesh reliably prevent electric discharge. The mesh does not clog up and the risk of discharge (sparking) is reduced. Compared to metal filters, polyamide fibres can be processed in a large variety of ways.

Black pouch with a white ribbon lying beside it on a plain, light-colored surface.

Round-bottom sieve bags (also available as U- or V-shapes)

Close-up of a white mesh fabric with a curved, stitched edge on a light background.

The standard filter bag is sewn flat at the bottom. As an alternative for more filter surface, we offer a round base. We can produce this cylindrical design from a diameter of 5 cm. On request, we can also produce a U-shaped or V-shaped (tapered) base for the filter bag.

In addition to the standardized filter and sieve bags, we are happy to create individual filter media on request that are perfectly tailored to the technical requirements of your application. We look forward to receiving your inquiry via our website and will be happy to send you free samples!

Code
Filter mediumMesh openingSize
PA250G1
Standard sizes in cm
G0G1G2GS
B101515Custom-made product
according to your size
specifications
L454525
Filter mediumCodeFilter fineness / mesh size in microns
151015253050566070801001251501802002503004005006008001.0001.320
Polyamide monofilamentPA
Polyester monofilamentPES
Polyamide CarbonPAC
Polyester needle feltPE
Polypropylene needle feltP
Weiße Buchstaben SFT auf einem einfarbig blauen, kreisförmigen Hintergrund.
Weiße Buchstaben SFT auf einem einfarbig blauen, kreisförmigen Hintergrund.

Sample request

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