Steel Cord Conveyor Belt

Application：

Steel cord conveyor belts a re widely used in high strength, long distance and heavy load transportation of materials and they are also used in high strength and shont distance transportation of materials on special occasions.

Feature：
1．High tensile strength：the belts a re suitable for large span, long distance transportation of materials.
2．Small elongation in use: the belts need only a very short take-up stroke distance.
3．Small diameter of drive pulley：the belt body has a layer of longitudinally arranged steel cords as its skeleton，and thus is resistant to flex fatigue. Therefore drive pulley of smaller diameter can be used to make the equipment smaller.
4．High adhesion between rubber and steel cord：the steel cords a re coated with zinc on their surface, and also the rubber used has the property of good adhesion with steel cords. Therefore, the rubber is tightly adhered to the steel cords and is resistant to shock and difficult to drop, so the rubber belts are long in life.
5．Even tension of steel cords：out of our advanced techniques in manufacturing, the steel cords are very evenly arranged and have the same tension, so the belts are well balanced in running and difficult to run away.
6．Good troughability：As the belt body has no transverse skeleton, it is easy to form a deep trough, so the belts can load more materials and prevent the materials from escaping.
7．Inspection of the skeleton steel cords on the convey or machines to prevent accidents from happening.

Adhesion of steel cord

Strength	ST600	ST800	ST1000	ST1250	ST1600	ST2000	ST2500	ST3150	ST4000	ST4500	ST5000	ST5400	ST6300
Adhesion N/mm GB9770-88	54	60	64	69	74	84	98	108	118
Adhesion N/mm DIN22131-88	60	70	80	95	105	105	130	140	145	150	165	175	180

Standard specifications

Belt strength （st-No.）	Cord diam d（mm）	Cord structure	Pitch P （mm）	Standard working tension（N/mm）	Standard rubber cover thicknes t1t2（mm）	Belt weight （Kg/㎡）	Min.Pulley diam.（mm）	Cord strength KN/piece
ST-630	3.0	6*7+1WS	10	90	5*5	20.0	800	6.93
ST-800	3.5	6*7+1WS	10	110	5*5	20.6	800	8.8
ST-1000	4.0	6*7+1WS	12	140	6*6	24.7	800	13.2
ST-1250	4.5	6*7+1WS	12	175	6*6	25.4	800	16.5
ST-1600	5.0	6*19+1WS	12	225	6*6	26.0	1000	21.12
ST-2000	6.0	6*19+1WS	12	285	8*6	30.0	1000	26.4
ST-2500	7.5	6*19W+1WS	15	355	8*6	32.2	1250	41.25
ST-3150	8.1	6*19W+1WS	15	450	8*8	35.7	1400	51.98
ST-4000	9.1	6*19W+1WS	17	570	8*8	37.8	1600	74.8
ST-4500	9.7	6*19W+1WS	16	645	8*8	38.7	1800	79.2
ST-5000	10.9	6*19W+1WS	17	715	8.5*8.5	41.9	1800	93.5
ST-5400	11.3	6*19W+1WS	17	760	9*9	43.9	2000	101
ST-6300	12.3	6*19W+1WS	18	900	10*10	48.3	2000	124.74

Number of steel cords

Belt width（mm）	ST600	ST800	ST1000	ST1250	ST1600	ST2000	ST2500	ST3150	ST4000	ST4500	ST5000	ST5400	ST6300
800	75	75	63	63	63	63	50	50
1000	95	95	79	79	79	79	64	64	56	60	56	56	52
1200	113	113	94	94	94	94	76	76	68	72	68	68	63
1400	133	133	111	111	111	111	89	89	79	84	79	79	74
1600	151	151	126	126	126	126	101	101	91	96	91	91	85
1800		171	143	143	143	143	114	114	103	107	103	103	96
2000			159	159	159	159	128	128	114	120	114	114	107
2200						176	141	141	125	133	125	125	118
2400						193	155	155	137	146	137	137	129

Characteristic and grades

Test items		Property indexes
		GB700-88		DIN22131-88
		Class H	Class M	Class W	Class X	Class Y
Tensile strength	Mpa≥	17.65	13.73	18	25	20
Elongation at break	%≥	450	400	400	450	400
After aging Change rate of tensile strength Change rate of elongation	%	-25～+250	-25～+250	-25～+250	-25～+250	-25～+250
Abrasion	≤	0.6cm3/1.61Km	0.8cm3/1.61Km	90cm3	120cm3	150cm3