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Tubes


Our tubes are used in a variety of applications or products, such as: automotive filters, aerospace filters and healthcare filters

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Heat-slit tubes

For injection molding, we offer our medical solutions in the form of one to two layered tubes or tube sections. With our hot and ultrasonic cutting technologies, we can create tubes down to a minimum diameter of 2.5 mm. Depending on the component and requirements, the tubes are equipped with one or two functional seams, which provide the necessary seam strength. Ultrasonic welded tubes have one overlapping weld and like in the ultrasonic slitter, the material passes over an anvil that emits a high frequency to bond the material together into a tube. Dual-layer slit tubes have two edges on the side of the tube. These edges or wings allow for the tube to be placed into a molding device and can be held on both sides of it. The individual cutting of the tubes results in the so-called Tubes Cuts, which are also available in conical form. 


Product forms

All fabrics with thread diameters < 250 µm and mesh openings < 500 µm can be heat slit

Heat-slit tubes are specified by having a defined inner diameter. Diameters range from 6 to 320 mm

The inner diameter of the heat-slit tube does not equal the flat width of the tube itself. The effect of welded 'wings' on either side has to be taken into consideration. The width depends on the mesh type

Ultrasonic flat-welded tubes 2 – 168 mm for fabrics up to 500 µ


Making-up

Tubes are wound onto standard cores (polyester discs) which have an inner square hole of 30 x 30 mm and an outer diameter of 61 mm

Upon request tubes can also be rolled onto ABS rings with a inner diameter of 76 mm (3").

Depending on fabric type and tube dimensions, roll length of up to 500 m are possible.


Packaging / labeling

Tube rolls are packed into sealed PE bags

Heat-slit tubes made of SEFAR MEDIFAB fabrics are double bagged

The label contains the following information:
manufacturer, material, dimensions (diameter in mm, length in m), manufacturing date, order number, roll number


Ultrasonically welded tubes

Fabrics, single and multilayer, can be ultrasonically welded into tube configurations. Tubes are made with one overlapping ultrasonic weld. Welds are accurate, clean and are made without the introduction of secondary material to the weld.


Product forms

All fabrics having thread diameters < 250 µm and mesh openings < 500 µm can be ultrasonically welded

Tube diameters range from 2 to 250 mm


Making-up

Tubes are wound onto standard cores

Polyester discs have an inner square hole
30 x 30 mm and an outer diameter of 61 mm

Depending on fabric type and tube dimensions,
roll length of up to 700 m are possible


Packaging / labeling

Tube rolls are packed into PE bags that are
closed by welding

The label contains the following information:
manufacturer, material, dimensions (diameter
in mm, length in m), manufacturing date,
order number, roll number


Tubes, cut to length

Tubes, cut to length, are segments cut from woven, ultrasonically welded or heat-slit tubes.


Product forms

Laser cutting provides heat-sealed, non-fraying edges.
Tube diameters range from 2 to 80 mm, lengths range
from 10 to 500 mm.

Cold cutting provides non-sealed edges that may fray.
Diameters range from 80 mm to 125 mm,
lengths range from 10 to 1000 mm.


Packaging / labeling

Tube segments are packed into PE bags that are sealed
by welding.

Tube segments made of SEFAR MEDIFAB fabrics are
double bagged.

The label contains the following information:
manufacturer, material, dimensions
(diameter in mm, length in m), manufacturing date,
order number, roll number, number of pieces per bag.

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Your Benefits

Non-fraying edges (laser cut)

Customizable dimensions (variety of diameters)

Suited for healthcare applications (SEFAR MEDIFAB, double bag)

Traceability (label)

Easy handling (various cores available)


For industry/application specific use of ribbons see links below:

FS_FC_Industrial & Appliances_Aerospace_Engine
FS_FC_Industrial & Appliances_Household filter Combi
FS_FC_Healthcare_Perfusion_Perfusion filter 01
FS_FC_Industrial & Appliances_Automotive industry

 

For further information and fabric samples, please select the preferred contact option on the right.