This product is refined from all cotton canvas (CC) or nylon NN polyester EP through processes such as rolling, forming, and vulcanization.
This product is suitable for different usage conditions and can be made into different structures such as edge wrapped, open edge, middle ladder, edge ladder, etc.
Specifications
(1) Core material
Polyester cotton interwoven fabric TC-70 type, all cotton canvas CC-56 type
(2) Bandwidth
300mm-3000mm
(3) Fabric layer
1-12 layers
(4) Cover adhesive thickness
Working surface: 1.5-10mm
Non working surface: 0mm-6mm
This type of conveyor belt uses fiber fabric as the core and general rubber as the covering material, with a smooth and flat surface. The core is a layered or integral fabric woven from fibers such as cotton, nylon, polyester, or vinylon. Cotton fiber is the earliest used core material and is easy to bond with rubber. Its strength slightly increases when wet, but its breaking strength is low (mostly around 56 N/(mm · layer)), and its anti-corrosion and mildew resistance is poor. Its use is gradually decreasing. Starting from the late 1950s, nylon fiber fabrics were used as core materials and have become the most widely used type. Nylon fiber has a strength of up to 700 N/(mm/layer), is water-resistant, corrosion-resistant, and resistant to bending fatigue; But the elastic elongation is relatively large. Polyester fiber has similar properties to nylon fiber, but its elastic elongation during use is only half that of nylon fiber, making it a promising material for development. Vinylon fiber has a strength of 200 N/(mm · layer), a smaller elastic elongation than nylon fiber, is easy to bond with rubber, and has good heat resistance. However, its strength decreases by 10-25% when wet, and it is only used in a few countries such as China and Japan. When weaving the core, only one type of fiber can be used, or two types of fibers can be blended or interwoven.
Supplementary information
Ordinary conveyor belts are divided into many specifications and models according to different usage environments and requirements:
- Width Classifications: According to the size of transportation volume and width, it is divided into commonly used models such as B300 B400 B500 B600 B650 B800 B1000 B1200 B1400 B1600 B1800 B2000 (B represents width, in millimeters).
- Usage Environments: Divided into models such as heat-resistant conveyor belts, cold resistant conveyor belts, acid alkali resistant conveyor belts, oil resistant conveyor belts, food conveyor belts, etc.
- Adhesive Thickness Guidelines: The minimum thickness of the covering adhesive on ordinary conveyor belts and food conveyor belts is 3.0mm, and the minimum thickness of the lower covering adhesive is 1.5mm; the minimum thickness of the covering adhesive on heat-resistant conveyor belts, cold resistant conveyor belts, acid alkali resistant conveyor belts, and oil resistant conveyor belts is 4.5mm, and the minimum thickness of the lower covering adhesive is 2.0mm. Depending on the specific usage environment, the thickness of the upper and lower covering adhesives can be increased by 1.5mm.
The new material ordinary conveyor belt should also be suitable for high and low temperature resistance: it can operate continuously in the temperature range of -73 ℃ ~ +260 ℃; Better resistance to other chemical substances; Good electrical performance: good insulation performance, high resistance to breakdown of the insulation layer; Good delamination: anti sticking, low friction coefficient, smooth surface; Good dimensional stability: The new type of ordinary conveyor belt is dimensionally stable and not easily deformed in high temperature and high pressure environments.
Execution standard
GB/T7984-2001
Covering layer parameters
Tensile strength ≥ 15Mpa, Tensile length at break ≥ 350%, Wear amount ≤ 200mm³
Interlayer bonding strength
Longitudinal sample average ≥ 3.2N/mm (between layers); Covering adhesive to layers ≥ 2.1 N/mm
According to the purpose of use of the conveyor belt, it can be divided into:
Oil resistant
Anti-skid
Climbing
Acid and alkali resistant
Heat resistant
Cold resistant
Flame resistant
Corrosion-resistant
Moisture-proof
Low-temperature resistant
High-temperature resistant
Flame retardant
Frequently Asked Questions
What are the available width specifications (bandwidth) for these conveyor belts?
The bandwidth ranges from 300mm to 3000mm. Standard width models include B300, B400, B500, B600, B650, B800, B1000, B1200, B1400, B1600, B1800, and B2000, where "B" represents the width in millimeters.
What is the operating temperature range for the new material conveyor belts?
The new material ordinary conveyor belts feature exceptional high and low-temperature resistance, allowing them to operate continuously within a temperature range of -73 ℃ to +260 ℃.
How does the cover adhesive thickness differ between ordinary and special-purpose belts?
Ordinary and food-grade conveyor belts require a minimum upper cover thickness of 3.0mm and a lower cover of 1.5mm. Special belts (heat, cold, oil, acid-alkali resistant) require a minimum upper cover of 4.5mm and a lower cover of 2.0mm. These thicknesses can be increased by 1.5mm based on environmental needs.
What core materials are used, and how do they compare in strength?
Core fabrics include polyester-cotton (TC-70), all-cotton (CC-56), nylon (NN), polyester (EP), and vinylon. Nylon fibers offer the highest strength (up to 700 N/mm/layer), whereas polyester offers similar properties with only half the elastic elongation. Cotton is easy to bond but has lower strength (around 56 N/mm/layer).
Which execution standards and safety parameters do these belts meet?
These conveyor belts comply with the execution standard GB/T7984-2001. The covering layer provides a tensile strength of no less than 15Mpa, elongation at break of at least 350%, and a wear volume of 200mm³ or less.
What structures and styles can this product be manufactured into?
Depending on usage requirements, the conveyor belt can be customized into various structural designs including edge wrapped, open edge, middle ladder, and edge ladder structures.
Boao Rubber
