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Steel Cord Conveyor Belt

Steel Cords: steel cords at certain arrangement which become the main tension holder of belt. Special high carbon content steel strand cords with special heat treatment, which makes the cord highly resistant to breakage and repeated dynamic stresses as well as highly flexible. Warp cords are galvanized and fully embedded in rubber. Twist cord alternating right and left hand to ensure the belt go straightly.

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Conveyor Belt Series

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Product details

Steel Cord Conveyor Belt consists of:

Rubber Cover: top rubber cover+ bottom rubber cover, protect the carcass from abrasion, impact, water and other injurious influence

Core Rubber: special rubber layer with good steel cord adhesion properties

Ripstop or Transverse Reinforcement: one or two steel breaker (No need for normal usage)

Advantage

High tensile strength: steel cord conveyor belt is suitable for transferring materials with long distance, high intensity and large load.

Small elongation in use: a very short take-up stroke distance needed.

High adhesion between rubber and steel cord: the steel cord are coated with zinc on the surface, highly adhered to the special core rubber to resistant to heavy impact.

Good troughability: as the belt body has no transverse carcass, it is easy to forma deep trough to load more materials without leak.

Small diameter of driving pulley: the belt body has a layer of longitudinallyarranged steel cords as its carcass to resistant to flex fatigue. Therefore, drivingpulley with smaller diameter can be used to reduce energy consumption.

Even tension of steel cords: thanks to our advanced techniques in manufacturingthe steel cords are very evenly arranged with the same tension, so the belts are well balanced in running and difficult to run away.

Technical Data According to DIN22131

Specification Technical Data		ST1000	ST1250	ST1600	ST2000	ST2500	ST3150	ST3500	ST4000	ST4500	ST5000	ST5400
Tensile Strength (N/mm) (N/mm)		1000	1250	1600	2000	2500	3150	3500	4000	4500	5000	5400
Max. Diameter of Cord (mm)		4.1	4.9	5.6	5.6	7.2	8.1	8.6	8.9	9.7	10.9	11.3
Pitch of Cord Tolerance: +1.5 (mm)		12	14	15	12	15	15	15	15	16	17	17
MinTop Rubber Cover Thickness (mm)		4	4	4	4	5	5.5	6.5	7	7.5	8	9
Min.Bottom Rubber Cover Thickness (mm)		4	4	4	4	5	5.5	6.5	7	7.5	8	9
Width (mm)		Cord Number
Width (mm)	Tolerance (mm)	Cord Number
500	±5	39	34	-	-	-	-	-	-	-	-	-
650	±7	51	44	-	-	-	-	-	-	-	-	-
800	±8	64	55	50	64	-	-	-	-	-	-	-
1000	±10	81	69	64	81	64	64	64	64	59	55	55
1200	±10	97	84	77	97	77	77	77	77	71	66	66
1400	±12	114	98	90	114	90	90	90	90	84	78	78
1600	±12	131	112	104	131	104	104	104	104	96	90	90
1800	±14	147	127	117	147	117	117	117	117	109	102	102
2000	±14	164	141	130	164	130	130	130	130	121	113	113
2200	±15	181	155	144	181	144	144	144	144	134	125	125
2400	±15	197	169	157	197	157	157	157	157	146	137	137
2600	±15	214	184	170	214	170	170	170	170	159	149	149

Technical Data According to GB

Specification	ST630	ST800	ST1000	ST1250	ST1600	ST2000	ST2500	ST3150	ST3500	ST4000	ST4500	ST5000	ST5400	ST6300	ST7000	ST7500
Tensile Strength (N/mm) (N/mm)	630	800	1000	1250	1600	2000	2500	3150	3500	4000	4500	5000	5400	6300	7000	7500
Max. Diameter of Cord (mm)	3	3.5	4	4.5	5	6	7.5	8.1	8.6	8.9	9.7	10.9	11.3	12.3	13.5	15
Pitch of Cord (mm)	10	10	12	12	12	12	15	15	16	17	17	17	17	18	19	21
Top Rubber Cover Thickness (mm)	5	5	6	6	6	8	8	8	8	8	8	8.5	9	10	10	10
Bottom Rubber Cover Thickness (mm)	5	5	6	6	6	8	8	8	8	8	8	8.5	9	10	10	10
Weight(kg/m³)	18	19.5	22.5	24	25.9	31.8	36.1	40.4	43.8	45	45.1	50.7	53.4	59.6	63.7	68.7
Width (mm)	Cord Number
800	75	75	63	63	63	63	50	50	50	-	-	-	-	-	-	-
1000	95	95	79	79	79	79	64	64	64	64	59	55	55	54	49	45
1200	113	113	94	94	94	94	76	77	77	77	71	66	66	63	59	54
1400	133	133	111	111	111	111	89	90	90	90	84	78	78	74	69	63
1600	151	151	126	126	126	126	101	104	104	104	96	90	90	85	80	72
1800	-	171	143	143	143	143	114	117	117	117	109	102	102	96	90	82
2000	-	-	159	159	159	159	128	130	130	130	121	113	113	107	101	91
2200	-	-	-	-	-	176	141	144	144	144	134	125	125	118	111	100
2400	-	-	-	-	-	193	155	157	157	157	146	137	137	129	121	109
2600	-	-	-	-	-	209	168	170	170	170	159	149	149	140	131	119

Steel Cord Conveyor Belt

Cord Pull-out Force-Delivered sate & after thermal treatment			Cord Pull-out Force-after thermal treatment
Strength	Before aging(N/mm)	After aging(Nmm)	Strength	Before aging(N/mm)	After aging(mm)
ST630	60	55	ST3150	140	130
ST800	70	65	ST3500	145	140
ST1000	80	75	ST4000	150	145
ST1250	95	90	ST4500	165	160
ST1600	105	95	ST5000	175	170
ST2000	105	95	ST5400	180	175
ST2500	130	120

Recommended Min.Pulley Diameters(mm)

Type

ST630

ST800

ST1000

ST1250

ST1600

ST2000

ST2500

ST3150

ST3500

ST4000

ST4500

ST5000

ST5400

ST6300

ST7000

Min. Pulley Diameter(mm)

800

1000

1250

1400

1600

1800

2000

Cover Rubber Property and Grades

Item		Property Indexes
		GB.T9770 DIN22131
		D	H	L	P	W	X	Y	K
Tensile Strength	Mpa≥	18	25	20	14	18	25	20	20
Elongation at Break	%≥	400	450	400	350	400	450	400	400
Aging test Change Rate of Tensile Strength（70C,7D)	%	-25~+25	-25~+25	-25~+25	-25~+25	-25~+25	-25~+25	-25~+25	-25~+25
Abrasion (mm”）	≤	90	120	150	200	90	120	150	200

Standard and Main Technical Data

Type	Standard and Main TechnicalData
Normal/Conventional	GB/T9770,DIN22131,JIS6369,AS1333
Fire Resistant	MT668,HG2539,DIN22131
Conventional Fire Resistant	HG2539II,DIN22103.DIN22131
Heat Resistant	HG/T2297 ISO4195
Abrasion Resistant	Shore AbrasionE90mm’DIN22131-W,Shore Abrasion≤70mm'AS1333-A
Heat&Abrasion Resistant	Heat Resistance 125° C. Shore Abrasion <150mm'
Acid，AJkali&Oil Resistant	HG4-846,HG/T3714,RMA(MOR.OR)
Cold Resistant	FragilityTemperature-50°C~-20°C HG/T3647
Ozone Resistant	(Ozone Density)50PPHM 40°C/72h ( No Crack ]