Flame Retardant Conveyor Belts

APPLICATIONS

These types of belts have a good resistance to open flames and protect the entire conveyor against open fire. This high level of protection against fire helps to stop the spread of fire over the belt. These types of belts are used in temperatures ranging from – 30 to +70 °C. The carcass of the belts consists of several plies of EP fabrics separated by rubber interlayer and covered with fire resistant an antistatic rubber covers.

Flame retardant conveyor belts meet all requirements of fire protection standards included in DIN 22 102 and they have improved fire resistance (DIN 22 103) and anti-static properties (DIN 22 104). The carcass is made of polyamide/polyester (EP), polyester/polyester (EE) fabrics.

Rock Conveyor
DimensionsWidth, mm. 800 – 1800 ± 1%
Thickness of belt , mm 8 – 24
Thickness of covers, mmOn customer’s demand 
Deviation from thickness     beltunder 10 mm± 1 mm 
 over 10 mm± 10 %
 rubber coverunder 4 mm–  0, 2 mm / + free
 over  4 mm – 5 % /  + free
Length, m,  
Flame Conveyor

PRODUCT CHARACTERISTICS

Characteristics of insertionsInsertions number2 – 6         
 Type of insertionEP
80
EP
100
EP
125
EP
160
EP
200
EP
250
EP
315
EP
400
EP
500
 
Tensile strength, kgf, (for 50mm x 200mm)longitudinal500700800100012001500200022002800
  transversal250250350380500500500500500
Adhesion, kgf/cm, min.between plies 5       
  between insertions and rubber coversunder 1.5 mm3.5   
      over 1.5 mm4.5   
Edges covered edges        
Surfaces both surfaces covered       
Breaking force of conveyor belt,(kgf/cm)It is given by the type and number of insertions     
Type coverStandardTemperature rangeFlame resistant   Carcass Mixture composition Cover Mixture  composition
SDIN 22102/1-91 S– 30….. +70 °CAntistatic and highly inflammable beltSBR
+ NR
 SBR
+ NR
  
KDIN 22102/1-91 K– 30….. +70 °CAntistatic belt with flame resistant coversSBR
+ NR
  SBR
+ NR
  

THE TYPE OF RUBBER FROM COVER FACES

 
Belt type daN/cm2 Tensile strength, min., at break, min. (%) Elongation max., (mm3) Abrasion loss Electrical resistance resistance of the surface in accordance with SR EN20284 (DIN 22104), Ώ max… Fire resistant product is in accordance with SR ISO 340(DIN 22103); (flame resistance time after retirement of burner);
Group Types Standards Number for each group of 6 test samples, (s), max. Number for each tested sample, (s), max.
1. S Technical Card 720 150 400 200 3 x 108  45 *) 15 *)
2. K Technical Card 654 150 350 200 3 x 108 45 **) 15 **)

*) Fire resistance in accordance with SR ISO 340 (DIN 22103) is established on test samples with or without covers.

**) Fire resistance in accordance with SR ISO 340 (DIN 22103) is established only on test samples with covers.