Jinflex Flame Resistant Conveyor Belts Ensure Superior Safety and Performance in Underground Coal Mining and High-Risk Industries

Zaozhuang Jinflex Rubber & Plastic Technology Co., Ltd (Jinflex), a trusted leader in rubber conveyor belt manufacturing, continues to advance safety standards with its flame resistant conveyor belt series. Engineered for demanding applications in underground coal mines, tunnels, power stations, heating stations, garbage incineration plants, cement plants, foundries, and steel mills, these belts are optimized for transporting coal, coke, sintered ore, and other flammable bulk materials, effectively minimizing fire and explosion risks while delivering long-lasting reliability.

The flame resistant conveyor belts from Jinflex feature a specialized structure comprising flame resistant cover rubber, a high-strength carcass, and anti-static core rubber, all focused on explosion-proof safety. The flame resistant cover rubber uses a unique compound with flame retardant and anti-static additives, meeting MT668-2019 requirements to inhibit combustion and reduce smoke emission. The carcass options include high-strength zinc-plated steel cord for heavy loads or multi-ply fabric (EP/NN/CC) for medium loads, providing low elongation and exceptional tensile resistance. The anti-static core rubber ensures strong adhesion between layers to prevent delamination, with surface resistance limited to ≤3×10⁸ Ω to eliminate static buildup. Additionally, reinforced edge rubber enhances wear and crack resistance, making the belts well-suited for narrow tunnel conveyor layouts.

Key features and benefits include excellent flame retardancy and anti-static properties, with alcohol combustion times averaging ≤3s (single ≤10s), propane combustion damage lengths <1250mm, and surface resistance ≤3×10⁸ Ω, fully addressing static-induced explosion hazards. The belts offer high wear resistance with Shore abrasion ≤90mm³, resulting in a service life up to twice that of ordinary mine belts. Strong tensile performance ranges from 56-400N/mm for fabric types to 630-7500N/mm for steel cord types, supporting long-distance transport exceeding 5km in underground settings. They adapt seamlessly to humid mine environments, with water absorption ≤1.5% and no performance loss in humidity levels ≥80%. Hot vulcanized splicing is recommended, retaining ≥90% of the original belt strength for stable, breakage-free operation over extended periods.

Specifications cater to diverse needs: carcass types include zinc-plated steel cord or multi-ply fabric (EP/NN/CC); tensile strengths from 100-400N/mm (fabric) or 630-7500N/mm (steel cord); belt widths from 400mm to 2600mm; and cover thicknesses of 3-12mm (top) and 2-8mm (bottom). A reference table highlights options such as EP/NN 100-400 with widths 400-2200mm and CC56/70 with similar specs, all ensuring compliance with flame retardancy metrics.

Jinflex flame resistant conveyor belts fully adhere to China’s coal mine safety standards (MT668-2019 and HG2539 for general flame resistant types) and international benchmarks, including DIN22131 (Germany), RMA (United States), JIS6369 (Japan), AS1333 (Australia), and SABS (South Africa). They hold Coal Safety (MA) Mark and EU CE certifications, underscoring their quality and safety.

With over 50 years of experience in mine belt production, Jinflex supports small-batch orders with no minimum order quantity, backed by an annual production capacity of 20 million meters. The company offers full customization of carcass type, belt width, and cover thickness to fit specific tunnel sizes and conveying loads, delivering high cost-effectiveness through optimized processes and rigorous certifications.