Hennig

Round Bellows

Industrial round bellows are another type of coated fabric bellow that is great for dust protection, laser machines, and guideways that don't see high chip loads. They offer maximum compression and flexibility in a wide range of materials for a wide range of environments. Our round bellows are specifically designed to protect shafts and other cylindrical machine components.

technical data

STITCHED ASSEMBLY

GLUED ASSEMBLY

standard mounting options

COLLAR

Different fixing devices are possible on either side.

FLANGE

Different fixing devices are possible on either side.

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MATERIAL OPTIONS FOR ROUND BELLOWS

Our bellows are made exclusively from high-quality plastic fabrics and foils. We select the cover material and processing according to the design ambient conditions. Decisive factors are the mechanical and thermal strain of the bellows as well as the type of swarf and aggressiveness of the agents used. Exact details of the used materials may be gathered from the table of materials above.

Specification NumberCoating Ext IntCarrierThickness (mm)ColorHeat SealedStitchedLamellaRound StitchedWear ResistanceOil Grease Coolant ResistanceSurface StabilitySwarf Weld Splatter Forging Scale ResistanceSelf ExtinguishingFlame ResistanceExtension Compressions Ratio
OZ-PURPUR/PURPolyester0.35Blackxxx+++++o-+
GN807PUR/PURPolyester1.00Blackxxx++--o--
NA-784TPU/TPUPolyester1.00Whitexxxx++--o--
OZ-PURPUR/PURPolyester0.22Black/Greyxx++ooo-++
OZ-23PVC/PVCPolyester0.23Blackxx++o---++
OZ-35PVC/PVCPolyester0.36Blackxxx+++oo-+
ALUM-ARAMIDALU/ALUNomex0.35Blackxxx+++++++++
PURT/TEFLONPTFE/PURPolyester0.30Blackxxx++++++oo-+
NEOPRENENEP/NEPNylon0.40Blackxxxx++++++++o-o
HYPALONHYP/HYPNylon0.40Blackxxxx+++oo-o

++ Excellent     + Good     o Suited Under Certain Conditions     - Unsuitable

 

TABLE OF MATERIALS

Commonly Used MaterialsDetails
Polyurethane (PUR)Temperature Resistance up to 120° C
AluminizedAluminum-coated Nomex® - temperature resistance up to 400ºC (only for stitched version)
Nomex®Flame-resistant material, suitable for laser applications
Kevlar®High strength, abrasion resistant, puncture resistant
Polyvinylchloride (PVC)Material does not continue burning if ignited (self-extinguishing)
Teflon® Polytetraflourethylen (PTFE)Anti-adhesive, high-chemical and thermal resilience, dirt and water-repelling, corrosion-proof