Circular Bellow
Made from a core of rigid polyamide fabric with layers of PVC on either side.
These systems are applied to protect spindles, shafts and columns and the optical fiber in laser machines.
Parts of the circular bellows
Fuelles circulares
Nylon fabric with layers of PVC.
Stitching.
Silicon coating.
PVC slides.
Steel hoop for large bellows.
Air outlet holes.
Support for fastening bellows to machine.
Collar for fastening to the machine.
Opening systems
Fuelles circulares
For very heavy vertical protective elements, tecnifuelle has a number of opening systems:
SYSTEM 1
Stretching device using staples located on the support frame, on as many folds as required, depending on the size of the bellows.
SYSTEM 2
Scissors-type stretching device, ideal for elements that are not guided by the intermediary frames.
Ways of securing ends to the machine
In the system with steel frames, the anchoring type and anchoring holes must be specified by the customer.
In systems where Velcro is used to fasten the bellows, one side is joined to the end frame of the bellows and, the other to the frame of the machine.
END FRAMES FOR
FASTENING BELLOWS
TO THE MACHINE COMPLETE FOLD HALF FOLD FRAME LARGER THAN
FOLD FASTENED WITH
VELCRO
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Fabrics
Fuelles circulares
FT: Heat-welded bellows
FC: Stitched bellows
Temperature ºC
Ref.
material Type of fabric and coating Thickness
(mm) Temporary Continuous Operating conditions FT FC
Min Max
TPP-23 POLIESTER + PVC 0, 23 110 -25 70 DUST GUARD,
ACID MEDIUMS USABLE USABLE
TPP-35 POLIESTER + PVC 0, 35 110 -25 70 DUST GUARD,
ACID MEDIUMS USABLE USABLE
TPP-60 POLIESTER + PVC 0, 6 110 -25 70 DUST GUARD,
ACID MEDIUMS USABLE
TPP-100 POLIESTER + PVC 1 110 -25 70 DUST GUARD,
ACID MEDIUMS USABLE
TPPU-23 POLIESTER + POLYURETHANE 0, 23 220 -25 150 RESISTANT TO OILS IN
EMULSION AND GREASE USABLE USABLE
TPPU-35 POLIESTER + POLYURETHANE 0, 35 220 -25 150 RESISTANT TO OILS IN
EMULSION AND GREASE USABLE USABLE
TPPU-60 POLIESTER + POLYURETHANE 0, 60 220 -25 150 RESISTANT TO OILS IN
EMULSION AND GREASE USABLE
TPHY-50 POLIESTER + HYPALON 0, 50 250 -15 140 RESISTANT TO MINERAL
OIL, GREASE USABLE
TPHY-100 POLIESTER + HYPALON 1 250 -15 140 RESISTANT TO MINERAL
OIL, GREASE USABLE
TNPU-35 NOMEX + POLYURETHANE 0, 35 400 -30 200 HOT SWARF,
LASER BEAMS, OILS USABLE USABLE
TARPU-35 ARAMIDE + POLYURETHANE 0, 35 400 -20 200 HOT SWARF,
OILS, GREASE USABLE USABLE
TFVS-35 FIBREGLASS +
SILICONING + PVC 0, 35 400 -40 250 FOR HIGH TEMPERATURES CYLINDERS, CEILINGS... USABLE USABLE
TFCAL-35 CARBON FIBRE + ALUMINIUM 0, 35 500 -40 280 FOR HIGH TEMPERATURES USABLE
TFVV-35 FIBREGLASS + VITON + POLYURETHANE 0, 35 600 -40 280 FOR HIGH TEMPERATURES USABLE USABLE
