Power Plant

Properties comparisons of HDPE pipe, PA66 pipe and steel pipe.

Item	Test method	Unit	HDPE pipe	PA66 pipe	Steel pipe
Density	ISO1183	g/cm3	0.945	1.15	7.8
Melting temperature	ISO11357	°C	129	255	1410
Water absorption	ISO11359	%	<0.01	3.8	-
Coefficient of linear thermal expansion	ISO11359	10-4/°C	1.2	0.8	0.17
Heat deformation temperature	ISO75	°C	71	182-224	1230
Yield strength	ISO527	Mpa	20	-	≥245
Tensile elongation	ISO527	%	≥350	60-300	20
Gap beam impact strength	ISO179	KJ/m2	<27	5.9-10.8	No break
Rockwell hardness	ISO2039	R	33	85-120	45
Friction coefficient	ISO8295	-	0.28	0.37	0.58
Corrosion resistance	-	-	Good	Good	Bad

Technical Parameters
Standard Diameter		Length scope ( mm)	Bearings Type (Min~Max)	Idler's Shell Wall Thickness
mm	Inch	Length scope ( mm)	Bearings Type (Min~Max)	Idler's Shell Wall Thickness
63.5	2 1/2	150~3500	204	3.0mm~3.75mm
76	3	150~3500	204 205	3.0mm~4.0mm
89	3 1/3	150~3500	204 205	3.0mm~4.0mm
102	4	150~3500	204 205 305	3.5mm~4.0mm
108	4 1/4	150~3500	204 205 305 306	3.5mm~4.0mm
114	4 1/2	150~3500	205 206 305 306	3.5mm~4.5mm
127	5	150~3500	204 205 305 306	3.5mm~4.5mm
133	5 1/4	150~3500	205 206 207 305 306	3.5mm~4.5mm
140	5 1/2	150~3500	205 206 207 305 306	3.5mm~4.5mm
152	6	150~3500	205 206 207 305 306 307 308	4.0mm~4.5mm
159	6 1/4	150~3500	205 206 207 305 306 307 308	4.0mm~4.5mm
165	6 1/2	150~3500	207 305 306 307 308	4.5mm~6.0mm
177.8	7	150~3500	207 306 307 308 309	4.5mm~6.0mm
190.7	7 1/2	150~3500	207 306 307 308 309	4.5mm~6.0mm
194	7 5/8	150~3500	207 307 308 309 310	4.5mm~6.0mm
219	8 5/8	150~3500	308 309 310	4.5mm~6.0mm

Advantages and Benefits:

1, Lower weight-50% lighter than steel roller which means lower power consumption
2, Easier to install and maintenance, Easier /cheaper transportation.
3, The most important is that it reduces the cost of conveyor roller.
4, Lower abrasion and corrosion of roller shell which means longer life of roller and lower maintenance.
5, High resistance to chemical agents which means the roller will not rust and is suitable for a wide variety of applications.Belt friendly since HDPE shell will not wear and cut the belt.
6, Low noise emission due to thermoplastic noise absorption.
7, Self -cleaning roller surface which means prevention of build up of material which main cause of belt mis-tracking and less spillage from the belt.
8, Low running resistance sealing system which means lower motor torque need in conveyor start , lower power size and energy consumption.

Typical applicatios:

Mining---coal, iron ore,gold,Coal process plants,Coal fired power stations,Import/export terminals,Steel plants,Fertilizer plants,Cement plants,Gravel plants,Quarry.