The choice of the seam is heavily dependent on the chosen fabric and the special demands of the application. Therefore Sefar uses different seam joining technologies to offer you a specially-designed solution having a long lifetime. The following seams are available:
Hot welded seam Technology: welded by temperature
Fabrics: 500 µm and larger
Seam width: 15 / 25 mm (flat)
Advantage: good pressure resistance
Sewn seam Centrifuge seam: especially developed seams avoiding cut edges on the side having product contact. This guarantees optimal process safety.
Ultrasonic (US) seam Technology: ultrasonic welding
Fabrics: 1 - 500 µm mesh opening
Especially developped for fine fabrics
Advantage: flexible, leak- and tear-proof
High frequency (HF) seam Technology: high-frequency welding
Fabrics: > 400 µm mesh opening
Seam width: 20 -30 mm (overlapped)
Advantage: FDA compatible, flexible,
no permeability
Armored (AR) seam Technology: welded seam with reinforcing threads
Fabrics: 11 - 400 µm mesh opening
Seam width: 5 / 12 / 16 mm (overlapped)
Advantage: extremely flexible, nearly 100% tensile strength of the fabric
English
