Steel Cord Conveyor Belt

Steel cord conveyor belts are rubber conveyor belts with steel wire as their skeleton.

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Basic Product Description

Steel cord conveyor belts are rubber conveyor belts with steel cords as their skeleton. They feature high tensile strength, good impact resistance, long service life, low elongation during use, good troughing properties, and excellent flexibility. They are suitable for long-distance, high-capacity, and high-speed material transportation. This product is composed of core rubber, steel cords, a cover layer, and edge rubber.

Features

1. High strength and safety factor;

2. Minimal elongation and short tensioning travel distance;

3. Strong bond between steel wire rope and rubber, excellent dynamic performance;

4. Flexible belt body, good grooving properties, and excellent straight-line running performance;

5. Excellent impact resistance;

6. Reliable joints and long service life.

Main technical parameters of steel cord conveyor belt Implementation standard: National Standard GB/T9770
	Project					Number of steel wire strands	Width specifications mm						*Small roller diameter mm
	Project						800	1000	1200	1400	1600	1800
	Longitudinal tensile strength N/mm	Steel wire rope ** Nominal diameter mm	Wire rope spacing ±1.5 mm	Top layer thickness mm	Lower covering layer thickness mm		800	1000	1200	1400	1600	1800
St630	630	3	10	5	5		75	95	113	133	151		500
St800	800	3.5	10	5	5		75	95	113	133	151	171	500
St1000	1000	4	12	6	6		63	79	94	111	126	143	630
St1250	1250	4.5	12	6	6		63	79	94	111	126	143	800
St1600	1600	5	12	6	6		63	79	94	111	126	143	1000
St2000	2000	6	12	8	6		63	79	94	111	126	143	1000
St2500	2500	7.2	15	8	6		50	64	76	89	101	114	1250
St3150	3150	8.1	15	8	8		50	64	76	89	101	114	1400
St3500	3500	8.6	15	8	8		50	64	77	90	104	117	1600
St4000	4000	8.9	15	8	8		50	64	77	90	104	117	1600

Marking for general-purpose steel cord conveyor belts

Cover rubber performance rating Implementation standard GB/T9770 standard
Grade code	Tensile Strength, MPa ≥	Elongation at Break, % ≥	Wear volume, mm³≤
D	18	400	90
H	25	450	120
L	20	400	150
P	14	350	200
Note: D - Under severe abrasion working conditions; H - Under severe tear working conditions; L - Under normal working conditions P - Oil-resistant, heat-resistant, acid and alkali-resistant, cold-resistant, and generally flame-retardant conveyor belt

Cover rubber performance rating Compliant with DIN 22131 standard
Performance rating	Tensile srength	Tensile elongation at break	Wear amount ≤ mm³
W	18	400	90
X	25	450	120
Y	20	400	150
K*	20	400	200
Note: *Applicable to general flame-retardant conveyor belts that comply with DIN 22103, whose cover rubber complies with the requirements of DIN 22104.

Main technical parameters of German steel cord conveyor belts Implementation standard: National Standard GB/T9770
	Project					Number of steel wire strands	Width specifications mm
	Project						500	650	800	1000	1200	1400	1600	1800
	*Low tensile strength N/mm (breaking force per unit load-bearing width)	Wire rope diameter d(**)	Rope spacing ±1.5 mm	Cover rubber thickness (*minimum)	Width		500	650	800	1000	1200	1400	1600	1800
							Width specifications mm
							±5	±7	±8	±10	±10	±12	±12		±14
St1000	1000	4.1	12	4			39	51	64	81	97	114	131		147
St1250	1250	4.9	14	4			34	44	55	69	84	98	112		127
St1600	1600	5.6	15	4			—	—	50	64	77	90	104		117
St2000	2000	5.6	12	4			—	—	64	81	97	114	131		147
St2500	2500	7.2	15	5			—	—	—	64	77	90	104		117
St3150	3150	8.1	15	5.5			—	—	—	64	77	90	104		117
St3500	3500	8.6	15	6.5			—	—	—	64	77	90	104		117
St4000	4000	8.9	15	7			—	—	—	64	77	90	104		117