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Flame Resistant for Underground Mining

HYC KING Flame Resistant Conveyor Belt for Underground Mining is specifically engineered to meet the stringent safety and operational requirements of underground mining. Offering superior flame resistance, electrical resistance, and mechanical durability, this belt ensures maximum safety and efficiency for mining operations.

Our steel cord conveyor belts are designed for exceptional force transmission, long lengths, and high load-carrying capacities, making them ideal for demanding mining environments. In addition, our rubber engineers have developed a wide range of flame-resistant and anti-static compounds to fully meet underground mining standards.

Safety Performance

Item Standard
Electrical Resistance Electrical Resistance ≦ 3 x 108
Drum Friction Test Drum surface temperature. ≦ 325
Test pieces shall not show not sign of flame.  
Finger Burn Test
S = sec		 With Covers The self-extinguish average time of six samples (S) ≦ 3
The self-extinguish time of one sample (S) ≦ 10
Wihout Cover The self-extinguish average time of six samples (S) ≦ 5
The self-extinguish time of one sample (S) ≦ 15
Gallery Test Test result confort to (a) or (b) (a) Each Samples Undamaged Length (mm) ≧ 600
(b) Each Samples Undamaged Length (mm) ≧ 50
  Max. Average Temperature (°C) ≦ 140
  Damaged Length (mm) ≦ 1250

 

Thickness of Flame Resistant Rubber

Designation ST630 ST800 ST1000 ST1250 ST1600 ST1800 ST000 ST2500 ST2800
Top Cover ≧ 5.0 5.0 6.0 6.0 6.0 8.0 8.0 8.0 8.0
Bottom Cover ≧ 5.0 5.0 6.0 6.0 6.0 8.0 8.0 8.0 8.0
Designation ST3150 ST3500 ST4000 ST4500 ST5000 ST5400 ST6300 ST7000 ST7500
Top Cover ≧ 8.0 8.0 8.0 8.0 8.5 9.0 10.0 10.0 10.0
Bottom Cover ≧ 8.0 8.0 8.0 8.0 8.5 9.0 10.0 10.0 10.0

 

ST Fire Resistant Conveyor Belt
ST Fire Resistant Conveyor Belt

 

Standard of Flame Resistant

Finger Burn Test

Belt Property:
  • Tensile Strength: ≧ 15MPa
  • Elongation: ≧ 350%
  • Ageing Test: (70°C x 168h)
  • Tensile Strength Rate: ±25%
  • Elongation Strength Rate: ±25%
  • Din: ≦ 200mm3
Cord Rubber Compound Penetration:
  • The average steel belts of adhesion strength does not less than 85% after aging.
  • In cover rubber and adhesive layer, the average of adhesion strength does not less than 10 KN/M.
  • Containing fabric in flame resistant steel cord belts, the average of adhesion does not less than 8 KN/M in rubber cover and adhesion.
Rubber Permeability:
  • 100kPa pressure is applied to both edge in the test pieces, with 60 seconds, the difference does no more than 5kPa.
Dyanmic Adhesion of Steel Cord Belts:
  • 10,000 times cycle test, steel cord belts without any pull-out phenomenon.
Alcohol Burner Gas Burner
Gallery Test
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