Mining Conveyor Belts Bucket Black Rubber Conveyor Belt For Heavy Loads
MWIN Steel Cord Conveyor Belt is a heavy duty, high performance rubber conveyor belt engineered for long‑distance, high‑tonnage, high‑tension bulk material handling. Manufactured by Qingdao MWIN Industry And Trade Co., Ltd. (Shandong, China), it is built to meet international standards (GB/T 9770, DIN 22131, AS 1333, JIS K 6369) and deliver exceptional reliability in mining, cement, coal, ports, metallurgy, and power generation.
Construction
1. Steel Cord Reinforcement (Core Skeleton)
• Material: High‑tensile, galvanized/brass‑coated steel cords (e.g., K6×7+1WS, K6×19+1WS) for superior corrosion resistance and rubber adhesion.
• Arrangement: Longitudinally parallel, evenly spaced cords with tension uniformity controlled to ±1% (far exceeding the industry standard of ±3%).
• Strength Range: Tensile strength from ST630 up to ST5400 kN/m, supporting spans of several kilometers.
• Key Benefit: Provides near‑zero elongation under load and exceptional resistance to flex fatigue.
2. Rubber Compounds
• Core Rubber: High‑adhesion rubber matrix that fully encapsulates and bonds to steel cords, preventing delamination and cord corrosion.
• Top Cover Rubber: Wear‑resistant, impact‑absorbing compound (abrasion loss: 70–300 mm³) to withstand heavy, abrasive bulk materials.
• Bottom Cover Rubber: Low‑rolling‑resistance rubber for efficient power transmission on pulleys and idlers.
• Edge Rubber: Reinforced side rubber to protect against edge tearing and environmental ingress.
Technical Specifications (MWIN Standard)
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Parameter
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Value Range
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Notes
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Belt Width
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200 mm – 2500 mm
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Custom widths available
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Belt Thickness
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12 mm – 30 mm
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Depends on cover grade and cord size
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Steel Cord Diameter
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3.7 mm – 14.5 mm
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Matched to tensile class
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Tensile Strength (ST Rating)
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ST630 – ST5400 kN/m
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Industry‑standard designation
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Elongation at Break
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≤ 0.2%
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Minimal stretch under operating load
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Abrasion Resistance (DIN)
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70 – 300 mm³
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Customizable for highly abrasive materials
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Operating Temperature
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-40°C to +120°C
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Special grades for extreme temps
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Length per Roll
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10 m – 200 m
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Unlimited endless splicing on‑site
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Standards
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GB/T 9770, DIN 22131, AS 1333, JIS K 6369
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Global compliance
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Features & Advantages
- High Tensile Strength & Low Elongation: Offers excellent longitudinal strength with minimal stretch (lower than full Nylon belts), reducing the need for frequent tension adjustments.
- Superior Impact & Tear Resistance: The Nylon weft provides exceptional flexibility, toughness, and resistance to punctures and tears from sharp or heavy materials.
- Excellent Troughability: Highly flexible, forming ideal troughs on conveyor idlers for better load containment, even around smaller pulleys.
- Dimensional Stability: Maintains its shape and size under heavy loads and high temperatures.
- Moisture & Mildew Resistance: Impervious to water, rot, and mildew, ensuring stable performance in wet environments.
- High Inter-Ply Adhesion: Strong bonding between layers prevents delamination, ensuring a long service life.
- Fatigue Resistance: Performs reliably under continuous, high-speed, and long-distance operations.
Primary Applications
MWIN Steel Cord Conveyor Belts are the preferred choice for:
• Mining: Coal, iron ore, copper, bauxite, and aggregates.
• Cement & Building Materials: Clinker, limestone, gypsum, and raw materials.
• Ports & Terminals: Long‑distance ship loading/unloading of bulk cargo.
• Power Plants: Coal and ash handling.
• Metallurgy: Sinter, ore, and slag conveyance.
• Quarries & Aggregates: High‑abrasion stone and gravel transport.
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