Steel Cord Conveyor Belts

Steel cord conveyor belts; their specifications and applications

With their proven high-performance and reliability, Steel Cord conveyor belts are among the most popular modes of material handling. Wrap wires are embedded inside rubber and the alternating right and left hand twisted wires facilitate the straight movement of the belts.

The cords used in Steel cord conveyors are made of specially developed high carbon steel. The cords are zinc-coated to ensure superior bonding between cord and rubber as well as to protect the same against corrosion.

Steel Cord Advantages:

• High Tensile strength
• Low elongation
• Long life
• High Efficiency
• Very high adhesion between rubber and steel cord

Cover rubber which acts as a protection for the steel cords, based on the requirements, is supplied in different types:

Specifications of steel cord conveyor belts

		Selection of Cover Rubber Quality
Cover type	Physical properties					Material	Characteristics
	Standard & Grade	Min. Tensile Strength  (N/mm2)	Min. Elongation at Break	Max. Abrasion Loss (mm3)	Max. Temp.  (C)
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	125	80
	SANS M	25	450	120	80
	ISO H	24	450	120	80
	IS M-24	24	450	120
	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
	IS-N-17	17	400	150	80
Superior Abrasion Resistant	DIN W	18	400	90	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.
	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
	ISO K	15	350	200	80
	BCS FR	17	350	175	100	Explosive and fire  hazardous material  coal powder, etc.	Resistance to flame  propagation, extremely  low burning rate; suitable  for underground operation.
	DIN V	15	350	200	100
Oil & Grease Resistant	IS-UG	16	350	200	100
	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
Heat Resistant	UHR	12.5	350	200	Max temp.  handled 180 °C	Hot sinter, hot cement,  fertilizer, etc.	Super heat resistant  and also in cut,  abrasion and tear  resistant
	UHR Super	10	300	200	Max temp.  handled 240 °C	Hot clinker, hot cement, hot  chemicals and fertilizer etc.
High Wear and Tear Resistant	HWT	22	400	90	80	Quarries, sand & gravel.  limestone, coal, ash	Suitable for high abrasive  applications
Energy Optimized	M EOB	18	400	100	100	Fine coal, ash, cement,  earth, coal, salt, etc.	General purpose premium  quality energy optimized cover
	LRR EOB	18	400	100	100		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

Steel cord belts with breakers (transverse reinforcements)

Transverse reinforcements are additionally added between the cover and the layers of steel cord. It is because of increasing the capacity of withstanding impact loads and shocks and results in achieving an outstanding improvement in service life.