Flame Retardant Conveyor Belt

Flame retardant conveyor belts are primarily needed for internal transportation within buildings and also in tunnel and mines where safety is of paramount importance, in environments where coal dust, gas, fertilizer or other combustible materials are involved, it is essential that the conveyor belt being used cannot created static electricity that can ignite gases and dust in the atmosphere.

This type belt is designed mainly:

  • To prevent the propagation of an accidental fire.
  • To guard against risks of explosion due to the accumulation of static electricity.
Flame retardant standards
DESIGNATION Standard Characteristics requireds Brief decription of test,Tests and test method.

K

ISO 340

Anti-static Electrical conductvity, Flame-resistant with cover Cover rubber static conductivity mube be3x108. Drum friction test 325. Spirit burner flame performance. Belt tested with cover.

NF EN 20340

DIN 22103

DIN EN 20340

S

ISO 340

Anti-static Electrical conductvity, Flame-resistant with and without cover Cover rubber static conductivity mube be3x108. Drum friction test 325. Spirit burner flame performance. Belt tested with and without cover.

NF EN 20340

DIN 22103

DIN EN 20340

Flame Retardant Technical Data
Cover rubber performance Tensile strength(Mpa) 15
Elongation at break(%) 350
After ageing(%) 70168H Tensile strength change rate25
Elongation change rate at break 25
Hardness (SHORE A) 655
Abrasion loss (mm³) 200
Adhesion 5N/mm
Average value of Top/Bottom static conductivity() 3108
Drum friction The Max.temperature of drum surface() 325
Flame or glow no sign of flame, sparks or glow
Spirit burner flame performance With cover rubber:Average 3 seconds, individual 10 seconds
Without rubber cover: average 5 seconds, individual 15 seconds
Standard DIN EN, MSHA

Areas of application:
Mining industry, coal cleaning plants, power plants, electric utilities.

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