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Specifications
Core Material
Polyester cotton interwoven fabric TC-70 type, all cotton canvas CC-56 type
Bandwidth
300mm – 3000mm
Fabric Layer
1 – 12 layers
Cover Adhesive Thickness
Working surface: 1.5 – 10mm | Non-working surface: 0 – 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.
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Supplementary Information
Ordinary conveyor belts are divided into many specifications and models according to different usage environments and requirements:
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1
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).
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According to different usage environments, it is 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. 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, cold resistant, acid alkali resistant, 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.
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New Material Performance Highlights: The new material ordinary conveyor belt can operate continuously in the temperature range of -73°C ~ +260°C; offers better resistance to chemical substances; excellent electrical insulation and breakdown resistance; anti-sticking, low friction coefficient and smooth surface; dimensionally stable and not easily deformed in high temperature and high pressure environments.
Execution Standard
GB/T7984-2001
Tensile Strength
≥ 15 MPa
Elongation at Break
≥ 350%
Wear Amount
≤ 200 mm³
Interlayer Bonding Strength
≥ 3.2 N/mm (between layers)
Cover-Layer Bond Strength
≥ 2.1 N/mm
🏷️ Conveyor Belt Types by Purpose
Oil Resistant
Anti-Skid
Climbing
Acid & Alkali Resistant
Heat Resistant
Cold Resistant
Flame Resistant
Corrosion-Resistant
Moisture-Proof
Low-Temperature Resistant
High-Temperature Resistant
Flame Retardant
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Frequently Asked Questions
Q
What core materials are used in general conveyor belts?
General conveyor belts commonly use cotton canvas (CC), nylon (NN), polyester (EP), and vinylon fiber fabrics as core materials. Each material offers different strength, elasticity, and environmental resistance properties. Nylon is currently the most widely used due to its high strength of up to 700 N/(mm/layer) and excellent fatigue resistance.
Q
What bandwidth sizes are available for general conveyor belts?
The bandwidth ranges from 300mm to 3000mm, covering standard models such as B300, B400, B500, B600, B650, B800, B1000, B1200, B1400, B1600, B1800, and B2000. The "B" designation represents the width in millimeters.
Q
What is the operating temperature range of the new material conveyor belt?
The new material ordinary conveyor belt is designed to operate continuously in a temperature range of -73°C to +260°C, making it suitable for both extreme cold and high-heat industrial environments without deformation or performance loss.
Q
What are the minimum cover adhesive thickness requirements?
For ordinary and food conveyor belts, the minimum upper covering adhesive thickness is 3.0mm and the lower covering adhesive is 1.5mm. For heat-resistant, cold resistant, acid alkali resistant, and oil resistant conveyor belts, the minimum upper cover is 4.5mm and the lower cover is 2.0mm. These values can be increased by 1.5mm depending on specific usage conditions.
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What quality standards do general conveyor belts comply with?
General conveyor belts comply with the Chinese national standard GB/T7984-2001. Key performance requirements include a tensile strength of no less than 15 MPa, elongation at break of no less than 350%, wear amount of no more than 200 mm³, interlayer bonding strength of at least 3.2 N/mm, and cover-to-layer bonding strength of at least 2.1 N/mm.
Q
What structural types can general conveyor belts be made into?
Depending on usage requirements, general conveyor belts can be manufactured in various structural configurations including edge wrapped, open edge, middle ladder, and edge ladder designs. This versatility allows them to be adapted for a wide range of industrial conveying applications.
Boao Rubber
