● Extreme Cold Toughness: Complies with GB/T 1591-2018, with a low-temperature impact energy ≥27J at -40°C and a ductile-brittle transition temperature below -40°C, eliminating brittle fracture risks in cold regions.
● High Strength: Yield strength ≥355MPa, tensile strength 470–630MPa, ensuring structural stability under heavy mining loads and dynamic impacts.
● Excellent Processability: Superior weldability; thick plates are normalized to refine grains and eliminate residual stress, suitable for complex welding and machining of drums.
● Rope Arrangement Technology: Adopts German LEBUS patented double-fold grooves—80% straight sections parallel to flanges, 20% smooth transition inclined sections—completely solving messy rope, biting, and extrusion wear in multi-layer winding.
● Dual-Drum Structure: Integrated dual-drum design with high rigidity and coaxiality, suitable for synchronous dual-rope hoisting, ensuring uniform stress, stable operation, and reduced eccentric load & rope wear.
● Long Wear Life: High-precision CNC-machined grooves with high surface hardness and smoothness ensure perfect rope contact. Wire rope service life is increased by over 50% compared to standard spiral grooves, reducing replacement frequency and downtime lossesm.winch-drum.com.
● Weather Protection: Resists low-temperature embrittlement and corrosion, adapting to extreme temperature differences from -40°C to +45°C and resisting cold, dust, and moisture in mining areas.
● Safety & Reliability: Even load distribution in multi-layer winding without stress concentration, preventing rope breakage and drum cracking, complying with mining equipment safety standardsLEBUS® Germany.
● Easy Maintenance: Split groove sleeves can be replaced independently without removing the entire drum, ensuring high maintenance efficiency and low cost in cold field conditions.
Widely used in mining cranes, crawler cranes, and hoists in northern cold mines, open-pit mines, and polar mining areas. Suitable for wire rope diameters of 10–100mm and 3–50 winding layers, serving as a core load-bearing component for heavy-duty cold-region operations.
Hot Tag:
Q355E Dual drum, Lebus groove, Mining crane, Extreme cold service, Low temperature toughness, Wear-resistant rope arranging, Hoist drum
