In the industry, there is no standard category specifically called ‘slope-climbing conveyor belt.’ It generally refers to steel cord (or cable) core conveyor belts used in scenarios requiring steeply inclined material transportation, such as mines, ore dressing plants, and power plants.

In such conveyor belts, the core component that enhances structural strength and enables them to withstand enormous tension and material weight is the carcass layer, which typically refers to the internal steel cord structure.

Core Carcass Structure: Steel Cord
The carcass layer of steel cord conveyor belts is composed of high-strength galvanized steel cords arranged side by side. These steel cords are critical for the conveyor belt to withstand tensile forces and ensure stable operation.

The table below compares the main characteristics of its carcass structure and the differences with ordinary conveyor belts:

Steel Cord Conveyor Belt Carcass Layer (Suitable for ‘Inclined’ Scenarios) Ordinary Fabric-Cored Conveyor Belt Carcass Layer
Core Carcass Material High-strength galvanized steel cord, usually made by twisting multiple steel wires into strands. Multi-layer fabrics of cotton, nylon (NN), polyester (EP), aramid, etc., woven or interlaced with warp (longitudinal) and weft (transverse) threads.
Structural Form Longitudinally arranged steel cords embedded in rubber, providing extremely high longitudinal tensile strength. Multi-layer fabrics woven or interlaced from warp (longitudinal) and weft (transverse) threads.
Core Function Withstands enormous tension, suitable for long-distance, high-capacity, steeply inclined (ascending) material conveying. Withstands moderate tension, suitable for medium-to-short distance, generally inclined material conveying.
Impact Resistance and Slotting Performance Rubber between steel cords provides good impact resistance, tear resistance, and excellent slotting performance. The multi-layer structure can disperse impact, but delamination between layers is prone to occur, and longitudinal tear resistance is relatively weak.
Typical Application Scenarios Main ports, large mines, and conveying systems spanning long distances over steeply sloped terrain. Internal factories, warehouses, ordinary mines, and other occasions with low requirements for distance and slope.

Design Requirements for the Skeleton Layer of ‘Slope-Climbing’ Hoses
To meet the stringent requirements of large-angle conveying, the design of the steel cord skeleton layer pays special attention to the following points:
• Extremely high tensile strength: High-strength and high-toughness steel cords are used to ensure that the hose does not break when lifting fully loaded materials on steep slopes.-6
• Excellent adhesion performance: The surface of the steel cord undergoes special treatment (such as galvanization, copper plating) and has extremely high adhesion strength with the cover rubber and core rubber, preventing the steel cord from being pulled out of the rubber under huge shear forces.
• Good flexibility: Although the strength is extremely high, the design of individual steel cords and the overall structure still needs to ensure that the conveyor belt can smoothly pass around the drive roller and deflection roller.
• Fatigue and impact resistance: The steel cord structure and the rubber formula around it need to withstand repeated bending and impact from materials, extending the service life.

Important Selection and Maintenance Notes
When selecting and maintaining such high-strength conveyor belts, special attention is needed:
• It is a tension belt, not a pressure pipe: First and foremost, the core stress of the ‘slope-climbing hose’ is longitudinal tension, which is completely different in principle from hydraulic hoses or water hoses that convey fluids and rely on the skeleton layer to withstand internal pressure (their skeleton layers are mostly woven or wound fibers/steel cords-1-7).
• Professional design and selection: It must be calculated and selected by professional engineers according to specific parameters such as conveying length, slope, transport volume, and material properties, choosing conveyor belts with corresponding strength grades, steel cord diameters, and spacing.
• Pay attention to joint reliability: The joint of the steel cord conveyor belt is a weak link, and professional vulcanization joint technology must be used to ensure that the joint strength reaches more than 90% of the belt body strength.
• Daily inspection and maintenance: Regularly check the wear condition of the cover rubber, whether there is exposed or broken steel cord, whether the joint is intact, and promptly clean attachments on rollers and idlers.

If you want to know how to select the appropriate steel cord strength for specific operating conditions (such as specific slope, conveyed materials), or are interested in the jointing process of conveyor belts, I can provide more detailed information.
8 web pages