Material table for box bellows

To provide you with the best possible solution for your specific application, innoFlex offers you a particularly broad range of materials for box bellows. After thoroughly analysing your requirements, we will work together with you to find the optimum material – and therefore the best box bellows for your application.

Box bellows – material overview
Abbreviations			PPU02	PPU04s	PPU04w	PUT03	NPU03	PVC04
Material number			660	670	680	690	730	740
Material thickness			0.2	0.34	0.34	0.35	0.33	0.35
Mechanical properties at room temperature	Resistance to tearing / N / 50 mm / DIN EN ISO 1421		800	2000	2000	1500	700	1500
	Elongation at break / % / DIN EN ISO 1421		18	18	18	--	30	12
	Bending stiffness / cN / DIN 53121		5 bis 5	22	14	20-45	100	10
	Water column / mm water column / DIN EN 20811		2000	2000	2000	2000	500	2000
	Resistance to bending Bally / revs / DIN 53351		40000	55000	46000	25000	40000	100000
Thermal behaviour	Flexible at low temperatures down to °C (applies to covering material only)		-20°C	-20°C	-20°C	-20°C	-20°C	-20°C
Thermal behaviour	Max. continuous operating temperature in °C (applies to the covering material only)		90°C	90°C	90°C	100°C	180°C	60°C
Resistance to	Dust
	Leakproof
	Resistant to water
	Resistant to cooling emulsion
	Resistant to chemicals
	Flame-retardant
	Resistant to chips
	Resistant to spattering

Max. continuous operating temperature in °C (applies to the covering material only)		Assessment:	Very good	Good	Satisfactory	Adequate	Insufficient
Guiding frame (PVC) at max. 60 °C		Assessment:

Please note:
If you are unable to find the right material for your specific application, just speak to one of our applications technicians. We will be happy to provide you with expert individual assistance.

Box bellows – material overview