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Conveyor Belts

Steel Cord Conveyor Belts

As conveyor systems get longer, and handle increased volumes and tonnage, the belt itself needs to get stronger. Steel cable delivers higher strength, and decreased elongation compared to fabric; and steel cord belts deliver cheaper and more reliable performance for any system with long conveying distances or high lifts.

Benefits

  • High Strength: When the belt operating tension has to be higher than 2500 KN/m, belts reinforced with steel cord are the only alternative; and there are steel cord belts designed for ratings up to 10000 KN/m. Steel cord belts are also an economic alternative to fabric belts with ratings between 1000 KN/m and 2500 KN/m.
  • Lower Factor of Safety: Fabric belts are designed with a factor of safety of 10, but the factor of safety is only 6.67 for steel cord belts. This means that a fabric belt can be replaced with a steel cord belt of a smaller rating, which provides a lifetime savings to the operator.
  • Shorter Takeups: the elongation of a material depends on its elastic modulus; and the superior elastic modulus of steel cord; elongation can be less than 0.25%; which allows for smaller takeup lengths.
  • Long Centre Distances: Steel cable has much lower elongation than fabrics, and this, in addition to the strength, lets belts be designed with long distances between pulleys; and takeups and transfer points are less constraining.
  • Smaller Pulley Diameters: With a much thinner carcass than a fabric belt of the equivalent rating, steel cord belts can be run on pulleys with smaller diameters, which leads to energy savings. The superior dynamic modulus of steel over fabric means that fatigue is much less.
  • High Impact Resistance: Typically, steel cord belt design leads to a greater proportion of rubber in the whole belt compared to textile conveyor belts. Additional rubber means that impact energy is better absorbed by the belt; making steel cord belts a good choice for any application where there can be sudden heavy individual pieces.
  • Excellent Troughability: Even the highest rated steel cord belts trough perfectly on deep troughed idler sites. This ensures easy belt training, and gives the belt a larger effective capacity; allowing the user to either increase throughput, or use a narrower belt.
  • Long Life Expectancy: Steel cord belts can be supplied with a thinner carcass and thicker cover rubber for the same rating as an equivalent fabric belt; which increases the belt life. The carcass also has a greater life than an equivalent fabric carcass.
  • Splice Life and Strength: Properly provided belt splices can last as long as the Belt itself. They can also achieve spliced strength equivalent to almost 100% of the strength of the Belt.
  • Easy Reconditioning : Steel cord belts can be repaired with hot or cold vulcanization and the damaged edges can be restored to their original width by hot repair. Worn out covers can be replaced with fresh rubber, durable enough to completely rejuvenate the belt, delivering even greater economy for the customer.

Range

Standard Steel Cord Range (DIN 22131)

ST Rating Recomm-ended Cord Dia (mm) Pitch (mm) ±1.5 Belt Width Minimum Recommended Pulley Diameters (mm) for MAWT utilisation > 60%
800 900 1000 1050 1200 1400 1500 1600 1800 2000 2200 2400 A B C
500 2.6 12 64 71 81 84 97 114 122 131 147 164 181 197 500 400 315
560 2.7 12 64 71 81 84 97 114 122 131 147 164 181 197 500 400 315
630 2.9 12 64 71 81 84 97 114 122 131 147 164 181 197 500 400 315
710 3 12 64 71 81 84 97 114 122 131 147 164 181 197 630 500 400
800 3.1 12 64 71 81 84 97 114 122 131 147 164 181 197 630 500 400
900 3.3 12 64 71 81 84 97 114 122 131 147 164 181 197 800 630 500
1000 3.5 12 64 71 81 84 97 114 122 131 147 164 181 197 800 630 500
1120 3.7 12 64 71 81 84 97 114 122 131 147 164 181 164 800 630 500
1250 4.2 14 55 61 69 72 84 98 104 112 127 141 155 169 800 630 500
1400 4.5 14 55 61 69 72 84 98 104 112 127 141 155 169 800 630 500
1600 5 15 50 57 64 67 77 90 97 104 117 130 144 157 1000 800 630
1800 5.4 15 50 57 64 67 77 90 97 104 117 130 144 157 1000 800 630
2000 6 15 50 57 64 67 77 90 97 104 117 130 144 157 1000 800 630
2250 6.2 15 50 57 64 67 77 90 97 104 117 130 144 157 1000 800 630
2500 6.6 15 50 57 64 67 77 90 97 104 117 130 144 157 1250 1000 800
2800 7 15 50 57 64 67 77 90 97 104 117 130 144 157 1250 1000 800
3150 7.4 15 50 57 64 67 77 90 97 104 117 130 144 157 1250 1000 800
3550 8 15 50 57 64 67 77 90 97 104 117 130 144 157 1400 1250 1000
4000 8.6 15 50 57 64 67 77 90 97 104 117 130 144 157 1400 1250 1000
4500 9.2 16 46 52 59 65 71 84 90 96 109 121 134 146 1400 1250 1000
5000 10.4 17 43 48 55 60 66 78 84 90 102 113 125 137 1600 1250 1000
5400 11 17 43 48 55 60 66 78 84 90 102 113 125 137 1600 1250 1000
6300 11.6 17 43 48 55 60 66 78 84 90 102 113 125 137 2000 1800 1600

Standard Steel Cord Range (AS 1333)

ST Rating Recomm-ended Cord Dia (mm) Pitch (mm) ±1.5 Belt Width Minimum Recommended Pulley Diameters (mm) for MAWT utilisation > 60%
800 900 1000 1050 1200 1400 1500 1600 1800 2000 2200 2400 A B C
500 2.6 13.8 56 63 70 74 84 99 106 113 128 142 156 170 500 400 315
560 2.8 13.8 56 63 70 74 84 99 106 113 128 142 156 170 500 400 315
630 3 13.8 56 63 70 74 84 99 106 113 128 142 156 170 500 400 315
710 3.1 13.8 56 63 70 74 84 99 106 113 128 142 156 170 630 500 400
800 3.3 13.8 56 63 70 74 84 99 106 113 128 142 156 170 800 630 500
900 3.8 15.3 50 56 63 66 76 89 96 102 115 128 141 154 800 630 500
1000 4 15.3 50 56 63 66 76 89 96 102 115 128 141 154 800 630 500
1120 4.3 15.3 50 56 63 66 76 89 96 102 115 128 141 154 800 630 500
1250 4.5 15.3 50 56 63 66 76 89 96 102 115 128 141 154 800 630 500
1400 4.8 15.3 50 56 63 66 76 89 96 102 115 128 141 154 1000 800 630
1600 5.5 17.3 45 50 56 59 67 79 85 90 102 113 124 136 1000 800 630
1800 5.9 17.3 45 50 56 59 67 79 85 90 102 113 124 136 1000 800 630
2000 6.4 17.3 45 50 56 59 67 79 85 90 102 113 124 136 1000 800 630
2250 6.8 17.3 45 50 56 59 67 79 85 90 102 113 124 136 1250 1000 800
2500 7.4 19.4 40 45 50 52 60 70 75 81 91 101 111 121 1250 1000 800
2800 8 19.4 40 45 50 52 60 70 75 81 91 101 111 121 1400 1250 1000
3150 8.6 19.4 40 45 50 52 60 70 75 81 91 101 111 121 1400 1250 1000
3550 9.2 19.4 40 45 50 52 60 70 75 81 91 101 111 121 1400 1250 1000
4000 9.8 19.4 40 45 50 52 60 70 75 81 91 101 111 121 1600 1400 1250
4500 10.4 19.4 40 45 50 52 60 70 75 81 91 101 111 121 1600 1250 1000
5000 11 19.4 45 50 52 60 70 75 81 91 101 111 121 1600 1250 1000
5600 11.8 19.4 45 50 52 60 70 75 81 91 101 111 121 2000 1800 1600
6300 12.8 20 43 48 50 58 68 73 78 88 98 108 118 2000 1800 1600

Key Clients

Steel Cord Conveyor Belt