Specifically designed for internal sealing

Strip Brushes - Special shape, fill inwards

These brushes are designed for internal sealing applications. Their segmented construction ensures maximum flexibility.

Your benefits at a glance:

  • Segmented production for precise adaptation
  • Internal fill for inner sealing
  • Large diameters can be achieved
  • Individually configurable for special applications
  • Durable and low-maintenance

Strip Brushes – Special shape, fill inwards

Just as you can obtain strip brushes in ring form with outward-facing fill, KULLEN-KOTI can easily manufacture this brush type with inward-facing fill. This design also allows for dimensional ranges that cannot be achieved with any other brush construction. The curved strip brushes can be produced not only in semicircular form but also in any segment division (e.g., 45°). The larger the dimensions, the easier it is to mount multiple curved segments around the circumference. All types of fill material, such as natural bristles, animal hair, plant fibres, and synthetic filaments.

Models

Strip Brushes – Special Types with Custom Shapes
Strip brushes Type D min. - max. (mm) d min. (mm) DXF
Special form ring, fill inwards 7 20.0 - 250.0 4.0 DXF
Special form ring, fill inwards 8 25.0 - 250.0 5.0 DXF
Special form ring, fill inwards 10 30.0 - 300.0 10.0 DXF
Special form ring, fill inwards 12 40.0 - 400.0 15.0 DXF
Special form ring, fill inwards 25 100.0 - 800.0 25.0 DXF
Special form ring, fill inwards 40 200.0 - 2000.0 40.0 DXF
Special form curved, fill inwards 7 20.0 - 250.0 4.0 DXF
Special form curved, fill inwards 8 25.0 - 250.0 5.0 DXF
Special form curved, fill inwards 10 30.0 - 300.0 10.0 DXF
Special form curved, fill inwards 12 40.0 - 400.0 15.0 DXF
Special form curved, fill inwards 25 100.0 - 800.0 25.0 DXF
Special form curved, fill inwards 40 200.0 - 2000.0 40.0 DXF

Fill material

The fill material we use for your brushes depends on your application, industry, and product. Do you have questions about fill materials? Feel free to contact us.

Fill material
Type of fill material Fill material Properties
Synthetic fibres PP (Polypropylen) Polypropylene, acid-resistant, smooth or crimped, colors available on request. Diameter 0.10 – 1.00 mm.
Synthetic fibres PAP (special bristle for wet applications based on PP) Special bristle for wet applications based on polypropylene, offering longer service life due to acid resistance at high temperatures; available in smooth or crimped versions, colors on request, diameter 0.15 – 1.00 mm.
Synthetic fibres PBT (Polyester) Polyester, smooth or crimped, colors available on request, diameter 0.20 – 3.00 mm.
Synthetic fibres PA 6.6 (Polyamid) All polyamid qualities have strong recovery properties. PA 6.6 is the filament with the highest rigidity in dry application before PA 6.12 and PA 6. In case of wet use PA 6.12 ranks before PA 6.6 and PA 6 because of the lowest water absorption.
Synthetic fibres PA 6.12 (Polyamid) Polyamide, smooth or crimped, colors available on request, diameter 0.08 – 3.00 mm. All polyamide grades are characterized by excellent recovery properties. In wet applications, PA 6.12 offers the best stiffness due to its minimal water absorption.
Synthetic fibres KBL (PA-based, alkali- and temperature-resistant) ''Special polyamide-based filament with high alkali resistance, even at elevated temperatures. Available in smooth or crimped form, brown in color, with diameters ranging from 0.08 to 1.50 mm. Synthetic filaments.''
Synthetic fibres HCB (high-temperature and chemical-resistant) High-temperature resistant (up to max. 200 °C) and extremely chemical-resistant special bristle, smooth, colors available on request, diameter 0.20 – 0.60 mm.
Synthetic fibres PE (Polyethylen) Polyethylene, smooth, available with slotted or unslotted X-profile. Colors available upon request. Diameter range: 0.08 – 1.00 mm.
Synthetic fibres CON (electrically conductive special bristle) Electrically conductive special bristle (up to 5 × 10 kOhm/cm²) based on polyamide, smooth, black, temperature resistance up to 100 °C, Ø 0.13 mm. For large order volumes, the following bristle diameters are also available: 0.21 mm, 0.41 mm, 0.52 mm, and 0.64 mm.
Natural fibres Chinese hog bristles (CHS) Chinese hog bristles, medium-hard to hard, grey or black in colour.
Natural fibres ROS (horsehair – soft to medium-hard) Horsehair, soft to medium-hard, black in colour.
Natural fibres ROS-GU (horsehair – hard) Horsehair, hard, natural grey in colour.
Natural fibres MAH (Mane hair) Horse hair, soft, natural grey/natural black
Natural fibres ZIE (goat hair) Goat hair, exceptionally soft, suitable for sensitive surfaces. Classified as fine hair and processed by KULLEN exclusively in premium quality.
Plant fibre FIB (Mexico fibre – medium-hard) Mexico fibre, medium-hard.
Plant fibre FIB-GU (Mexico fibre – medium-hard to hard) Mexico fibre, medium-hard to hard, grey in colour.
Plant fibre SIS (sisal cord) Sisal cord – cord diameter 2.8 to 5.0 mm
Infinite Possibilities

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Strip Brushes – Special shape, fill outwards

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