China Industrial Coal Mine Fire Resistant Conveyor Belt, Find details about China Conveyor Belt, Transmission Belt from Industrial Coal Mine Fire Resistant Conveyor Belt
Safety performance:
The conveyor belt already through the flame retardant test experiment, and obtained certificate coal Ann mark and approved by users.
Flame retardant performance:
(1)Roller friction: roller surface temperature is not more than 325 degrees.
(2)A blowtorch burn: cotton degrees than 3.0S flame average blowtorch to layer, the average is not more than 5.0S.
(3)Propane burn: nondestructive length is more than 250mm.
Technical data
ltem | flame retardant grades | |
K2 | K3 | |
duration | The total duration of flame of 6 test pieces with covers is less than 45S,any individual test piece does not exceed 15 S | Average value of duration of flame of 3 test pieces with covers does not exceed 60S |
anti-static property | <= 3 × 108Ω | |
reapperance | There should be no reapperance of flame on any test piect |