Steel Cord Abrasion Resistant Conveyor Belt

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Steel Cord Abrasion Resistant Conveyor Belt

Standard Steel Cord Conveyor belt Range As per DIN 22131

ST Rating (kN/m)	Recommended Cord Dia (mm)	Pitch (mm) ± 1.5	No. of Cords — Belt Width (mm)												Min. Recommended Pulley Dia (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	3.0	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	5.0	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	6.0	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	7.0	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	8.0	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	11.0	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 Conveyor belt Range As per AS 1333

ST Rating (kN/m)	Recommended Cord Dia (mm)	Pitch (mm) ± 1.5	No. of Cords — Belt Width (mm)												Min. Recommended Pulley Dia (mm) for MAWT Utilisation > 60%
ST Rating (kN/m)	Recommended Cord Dia (mm)	Pitch (mm) ± 1.5	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	3.0	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	4.0	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	8.0	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	11.0	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

STEEL CORD BELT SPLICING

BELT TYPE	Number of Steps	Minimum step length (ls)	Splice length (lv)
ST-1250 and below	1	350	650
ST 1600	1	450	750
ST 2000	2	400	1150
ST 2500	2	500	1350
ST 3150	2	650	1650
ST 3500	3	650	2350
ST 4000	3	750	2650
ST 4500	3	800	2800

ROLL DIAMETER CALCULATIONS AND CHART

BELT LENGTH L (m)	BELT THICKNESS d (mm)
BELT LENGTH L (m)	10	12	14	16	18	20	20	24	26	28	30	32	34	36	38	40
10	0.61	0.63	0.65	0.67	0.69	0.71	0.73	0.75	0.76	0.78	0.79	0.81	0.83	0.84	0.86	0.87
20	0.71	0.75	0.78	0.81	0.84	0.87	0.90	0.93	0.96	0.98	1.01	1.03	1.06	1.08	1.10	1.13
40	0.87	0.93	0.98	1.03	1.08	1.13	1.17	1.21	1.25	1.29	1.33	1.37	1.41	1.44	1.48	1.51
60	1.01	1.08	1.15	1.21	1.27	1.33	1.39	1.44	1.50	1.55	1.59	1.64	1.69	1.73	1.78	1.82
80	1.13	1.21	1.29	1.37	1.44	1.51	1.58	1.64	1.70	1.78	1.82	1.87	1.93	1.98	2.03	2.08
100	1.23	1.33	1.43	1.51	1.59	1.67	1.75	1.82	1.89	1.95	2.02	2.08	2.14	2.20	2.26	2.31
120	1.33	1.44	1.55	1.64	1.73	1.82	1.90	1.98	2.05	2.13	2.20	2.27	2.33	2.40	2.46	2.52
140	1.43	1.55	1.66	1.76	1.86	1.95	2.04	2.13	2.21	2.29	2.37	2.44	2.51	2.58	2.65	2.72
160	1.51	1.64	1.76	1.87	1.98	2.08	2.17	2.27	2.36	2.44	2.52	2.60	2.68	2.75	2.83	2.90
180	1.59	1.73	1.85	1.98	2.09	2.20	2.30	2.40	2.49	2.58	2.65	2.75	2.84	2.92	2.99	3.07
200	1.67	1.82	1.95	2.08	2.20	2.31	2.42	2.52	2.62	2.72	2.81	2.90	2.98	3.07	3.15	3.23
220	1.75	1.90	2.04	2.18	2.30	2.42	2.53	2.64	2.74	2.84	2.94	3.04	3.13	3.21	3.30	3.38
240	1.82	1.98	2.13	2.27	2.40	2.52	2.64	2.75	2.86	2.97	3.07	3.17	3.26	3.35	3.44	3.53
260	1.89	2.05	2.21	2.36	2.49	2.62	2.74	2.86	2.98	3.09	3.19	3.29	3.39	3.49	3.53	3.67
280	1.95	2.13	2.29	2.44	2.58	2.72	2.84	2.97	3.09	3.20	3.31	3.41	3.53	3.62	3.71	3.80
300	2.02	2.20	2.37	2.52	2.67	2.80	2.94	3.07	3.19	3.31	3.42	3.53	3.64	3.74	3.84	3.94
320	2.08	2.27	2.44	2.60	2.75	2.90	3.04	3.17	3.29	3.41	3.53	3.65	3.78	3.85	3.97	4.07
340	2.14	2.33	2.51	2.68	2.84	2.98	3.13	3.26	3.39	3.52	3.64	3.76	3.87	3.98	4.09
360	2.20	2.40	2.58	2.75	2.92	3.07	3.21	3.35	3.49	3.62	3.74	3.86	3.98	4.09
380	2.26	2.46	2.65	2.83	2.99	3.15	3.30	3.44	3.58	3.71	3.84	3.97	4.09
400	2.31	2.52	2.72	2.90	3.07	3.23	3.38	3.53	3.67	3.81	3.94	4.07
420	2.37	2.58	2.78	2.97	3.14	3.31	3.47	3.62	3.76	3.90	4.04
440	2.42	2.64	2.84	3.04	3.21	3.38	3.55	3.70	3.85	3.99
460	2.47	2.70	2.91	3.10	3.29	3.46	3.62	3.78	3.93	4.08
480	2.52	2.75	2.97	3.17	3.35	3.53	3.70	3.86	4.02

Selection of Cover Rubber Quality

Cover Type	Standard & Grade	Physical Properties				Material	Characteristics
Cover Type	Standard & Grade	Min. Tensile Strength (N/mm²)	Min. Elong. at Break (%)	Max. Abrasion Loss (mm³)	Max. Temp. (°C)	Material	Characteristics
General Purpose	DIN X	25	450	120	80	Iron ore, copper ore, stone, rock, etc. lignites overburden	Extra abrasion, cut & gouge resistance. Suitable for transporting sharp, large lumps & rugged material under adverse loading condition
	AS M	24	450	120	80
	SANS M	25	450	120	80
	ISO H	24	450	120	80
	IS M-24	24	450	120	80
	DIN Y	20	400	150	80	Fine coal, ash, cement, earth, coal, salt, etc.	Abrasion resistance for normal service. Suitable for transporting moderate abrasive material.
	AS N	17	400	200	80
	SANS N	17	400	150	80
	ISO D	18	400	100	80
Superior Abrasion Resistant	IS N-17	17	400	150	80	Quarries, sandpits, lime stone, coal, ash, ore, phosphate, raw material for glass works, etc.	Superior abrasion resistance for the heaviest service condition. Suitable for abrasive material with a large proportion of fines.
	DIN W	18	400	90	80
	AS A	17	400	70	80
Heat Resistant	DIN T	12.5	350	250	125	Hot sinter, hot cement, hot powder, chemical & fertilizer, etc.	Heat resistant and also in cut, abrasion and tear resistant.
	IS T1	12.5	350	250	125
	IS T2	12.5	350	250	150
Fire Resistant	AS F	14	300	200	80	Materials having fire hazards e.g. sulphur, coal, etc.	Resistance to flame propagation and burning; suitable for surface application.
	CAN CSA-C	17	350	200	80
	ISO 340	17	350	175	80
	DIN K (with cover)	20	400	200	80
	SANS F	14	400	180	80	Explosive and fire hazardous material, coal powder, etc.	Resistance to flame propagation, extremely low burning rate; suitable for underground operation.
	IS-UG	16	350	200	100
	BCS FR	17	350	175	100
Oil & Grease Resistant	DIN G	12	250	175	100	Chemical & fertilizer, wood, paper & pulp, recycling plants.	Resists penetration and therefore the damaging effect of oil and fat.
	AS Z	12	250	175	100
	IS OR	12	250	175	100

Special Cover Grades Suiting to a Particular Application.

Cover Type	NRC Brand	Physical Properties				Material	Characteristics
Cover Type	NRC Brand	Min. Tensile Strength (N/mm²)	Min. Elong. at Break (%)	Max. Abrasion Loss (mm³)	Max. Temp. (°C)	Material	Characteristics
Heat Resistant	UHR	12.5	350	200	Max. 180°C	Hot sinter, hot cement, fertilizer, etc.	Super heat resistant and also in cut, abrasion and tear resistant
Heat Resistant	UHR Super	10	300	200	Max. 240°C	Hot sinter, hot cement, fertilizer, etc.
High Wear & Tear Resistant	HWT	22	400	90	80	Hot clinker, hot cement, hot chemicals and fertilizer etc.	Suitable for high abrasive applications
Energy Optimized	M EOB	18	400	100	100	Quarries, sand & gravel, limestone, coal, ash	General purpose premium quality energy optimized cover
	LRR EOB	18	400	100	100	Fine coal, ash, cement, earth, coal, salt, etc.	General purpose energy optimized cover
	FR EOB	15	400	130	80	Explosive and fire hazardous materials, e.g. coal powder, etc.	Fire resistant grade EOB as per FR CAN CSA-C

Cover Gauge

Type of Influences and Their Rating		Sum of the Rating Values	Additions to Minimum Thickness (mm)
Loading Conditions	Favourable – 1	5 to 6	0 to 1
	Moderate – 2
	Not favourable – 3
Frequency of Loading	Favourable – 1	7 to 8	1 to 3
	Moderate – 2
	Not favourable – 3
Grain Size	Favourable – 1	9 to 11	3 to 6
	Moderate – 2
	Not favourable – 3
Density	Favourable – 1	12 to 13	6 to 10
	Moderate – 2
	Not favourable – 3
Abrasion Factor	Favourable – 1	14 to 15	> 10
	Moderate – 2
	Not favourable – 3

Steel Cord Conveyor Belts

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