ST2800 Steel Cord Conveyor Belt

CBC India's ST2800 steel cord conveyor belt is specified for the most extreme overland conveying infrastructure currently in commercial operation — systems where haul distances, operating tensions, and continuous throughput volumes push the boundaries of what steel cord belt engineering can deliver within proven manufacturing and installation practice. Per DIN 22131 and ISO 283, the "2800" designation guarantees a minimum breaking strength of 2,800 Newtons per millimeter of belt width, placing this belt in a narrow application category defined by mega-scale lithium, gold, and cement production facilities where annual tonnage movements and infrastructure replacement costs demand the longest achievable service life at the highest available tensile rating.

Construction

The ST2800's tensile core is built on galvanized steel cords in 7×19 strand configuration, with individual cord diameters of 7.1 mm at a 13.5 mm pitch across belt widths spanning 1,800–2,200 mm in standard configurations, extending to 3,600 mm in the widest available format. Each cord delivers a minimum breaking force of approximately 45 kN, with top-tier rubber saturation during vulcanization achieving complete wire-level encapsulation throughout the full cord cross-section. At the ST2800 tensile class, encapsulation integrity governs service life more than any other manufacturing variable: under operating tensions exceeding 2,400 PIW and ultra-high flex cycle counts accumulated over multi-decade service, any compromise in internal rubber penetration accelerates corrosion fatigue to cord fracture on a timeline that cannot be recovered through maintenance intervention alone. Total belt thickness runs 44–50 mm with a reference mass of 44.8–62 kg per linear meter across standard width configurations. Cover specifications include 5 mm minimum top and bottom as baseline, with heavy-duty 15+10 DIN Grade X asymmetric configurations available for severe impact and abrasion duty profiles. Roll lengths exceed 1,500 m per section. Minimum pulley diameters are specified at 1,000 mm.

Top cover compounds are specified to DIN Grade Z as standard, with extreme heat-resistant formulations rated to 400°C for the highest-temperature clinker, sinter, and calcined ore applications. Triple-ply rip barrier constructions per DIN 22102 provide transverse and longitudinal structural reinforcement against catastrophic impact and rip propagation. Flame-retardant variants comply with ISO 284 and EN 16974 for underground uranium and deep hard-rock mining installations.

Performance

Working elongation ranges from 0.1–0.3% at rated tension, supporting fully autonomous tension control systems across single-flight hauls exceeding 12 km without manual adjustment. Operating tensions surpass 2,400 PIW at conveying speeds up to 10.5 m/s. Ultimate troughability delivers volumetric throughput increases exceeding 85% over stiffer constructions, while the advanced carcass architecture reduces drive power consumption by 50% against fabric ply alternatives at equivalent throughput. Impact tolerance extends to 750 mm lump material without cord displacement, structural cover failure, or rip initiation.

Installation and Maintenance

Two-step hot-vulcanized splices at 1,450 mm splice length per DIN 22131 Part 3 restore 100% cord efficiency at every joint. In-service monitoring integrates electromagnetic induction array scanning, fibre-optic rip detection, and remote satellite-linked surveillance for continuous non-destructive cord assessment across the full belt length. Real-time predictive analytics platforms fed by autonomous tension monitoring and condition sensing across the complete conveyor system identify developing fault signatures before they progress to unplanned operational stoppages. ST2800 belts achieve a documented service life of 40–80 years across the world's most demanding and highest-value bulk material handling infrastructure — the definitive tensile specification where operational continuity and capital asset longevity are the governing engineering requirements.

Technical specification of ST2800 Conveyor Belt

Standard Steel Cord Conveyor belt Range As per DIN 22131

Available Stocks of ST2800 conveyor belt