Baoding Fangnuo Rubber Products Manufacturing Co., Ltd.
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Contact Information
Address: China (Boye) conveyor belt Industrial zone
Whatsapp:+86 18395653111
Mailbox:colin@bestbelting.com
Fire-resistant, flame-retardant, and scorch-resistant conveyor belt
Keyword:
Fire-resistant, flame-retardant, and scorch-resistant conveyor belt
Details
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Uses
Fire-resistant, flame-retardant, and scorch-resistant conveyor belts are suitable for high-temperature environments in the metallurgical, cement, and chemical industries. They are mainly used to convey high-temperature solid materials such as sintered ore, coke, and clinker.
Features
Develop new structural skeleton materials to reduce the loss of strength due to heat aging during product use and improve service life;
The cover rubber is designed using excellent natural rubber, ethylene propylene rubber, styrene-butadiene rubber, chloroprene rubber, nitrile rubber, etc., to improve the high-temperature resistance of the rubber compound and reduce heat aging loss.
Fire-resistant, flame-retardant, and scorch-resistant conveyor belt cover rubber performance
| Item | GB20021 Standard | Fano Standard | |||||
| T1 | T2 | T3 | T3 | DAHR150 | DAHR180 | ||
| Test Temperature | |||||||
| ≤100℃ | ≤125℃ | ≤150℃ | ≤175℃ | ≤150℃ | ≤180℃ | ||
| Allowable Range of Change | |||||||
| Hardness | Difference between after and before aging | +20 | +20 | ±20 | ±20 | ±10 | ±10 |
| Maximum value after aging | 85 | 85 | 85 | 85 | 75 | 75 | |
| Tensile Strength | Performance Change Rate | -25 | -30 | -40 | -40 | ±15 | ±25 |
| Lower value after aging | 12 | 10 | 5 | 5 | 10 | 8 | |
| Elongation at Break | Change rate after aging | -50 | -50 | -55 | -55 | ±15 | ±15 |
| Lower value after aging | 200 | 200 | 180 | 180 | 400 | 350 | |
| German Standard DIN-22102 | ||||||
| Grade | Tensile strength ≥Ma | Elongation at break ≥M% | Abrasion ≥mm 3 | Interlaminar bonding strength (N/mm) | Bonding strength between cover layer and fabric layer (/mm) | |
| Cover layer thickness 0.8~1.5mm | Cover layer thickness >1.5mm | |||||
| W | 18 | 400 | 90 | ≥5 | 3.5 | 4.5 |
| X | 25 | 450 | 120 | |||
| Y | 20 | 400 | 150 | |||
| Z | 15 | 350 | 250 | |||
| British Standard BS 490 | ||||||
| Grade | Tensile strength ≥Ma | Elongation at break ≥M% | Abrasion ≥mm 3 | Interlaminar bonding strength (N/mm) | Bonding strength between cover layer and fabric layer (/mm) | |
| Cover layer thickness 0.8~1.5mm | Cover layer thickness >1.5mm | |||||
| M | 24 | 450 | - | ≥5.25 | 3.15 | 4.5 |
| N | 17 | 400 | - | |||
| Australian Standard AS 1332-2000 | ||||||
| Grade | Tensile strength ≥Ma | Elongation at break ≥M% | Abrasion ≥mm 3 | Interlaminar bonding strength (N/mm) | Bonding strength between cover layer and fabric layer (/mm) | |
| Cover layer thickness 0.8~1.5mm | Cover layer thickness >1.5mm | |||||
| A | 17 | 400 | 70 | 6 | 4 | 4.8 |
| E | 14 | 300 | - | |||
| F | 14 | 300 | - | |||
| M | 24 | 450 | 125 | |||
| N | 17 | 400 | 200 | |||
| S | 14 | 300 | 250 | |||
| S* | 12 | 300 | 250 | |||
| South African SANS 1173:2005 | ||||||
| Grade | Tensile strength ≥Ma | Elongation at break ≥M% | Abrasion ≥mm 3 | Interlaminar bonding strength (N/mm) | ||
| Bonding strength between cover layer and fabric layer (N/mm) | ||||||
| A | 18 | 400 | 90 | ≥7 | ≥5 | |
| X | 25 | 450 | 120 | |||
| M | 24 | 450 | 150 | |||
| N | 20 | 400 | 250 | |||
Specifications and technical parameters of multi-layer fabric core carcass of fire-resistant, flame-retardant, and scorch-resistant conveyor belts
| Fabric carcass type | Fabric structure | Fabric model | Rubberized fabric thickness (mm/p) | Strength series (N/mm) | Cover rubber thickness | Width range (mm) | ||||||
| Warp | Weft | 2 layers | 3 layers | 4 layers | 5 layers | 6 layers | Top cover layer | Bottom cover layer | ||||
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Nylon canvas EP polyester canvas NN canvas EE canvas |
Nylon | Nylon | Nylon/EP polyester/NN/EE-100 | 1.00 | 200 | 300 | 400 | 500 | 600 | 0-12 | 0-10 | 300-2500 |
| Nylon/EP polyester/NN/EE-125 | 1.05 | 250 | 375 | 500 | 625 | 750 | ||||||
| Nylon/EP polyester/NN/EE-150 | 1.10 | 300 | 450 | 600 | 750 | 900 | ||||||
| Nylon/EP polyester/NN/EE-200 | 1.20 | 400 | 600 | 800 | 1000 | 1200 | ||||||
| Nylon/EP polyester/NN/EE-250 | 1.40 | 500 | 750 | 1000 | 1250 | 1500 | ||||||
| Nylon/EP polyester/NN/EE-300 | 1.60 | 600 | 900 | 1200 | 1500 | 1800 | ||||||
Bonding strength and elongation performance meet the following table
| Bonding strength, elongation performance | |||||
| Core material | Bond strength | Elongation performance | |||
| N/mm between plies | N/mm between cover and plies | Full thickness longitudinal tensile elongation at break | Full thickness longitudinal reference force elongation | ||
| Cover thickness ≤1.5mm | Cover thickness ≥1.5mm | ||||
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Nylon canvas EP polyester canvas NN canvas EE canvas |
≥5 | ≥4.5 | ≥5 | ≥10% | ≤4%6 |
China standard cover performance meets the following table
| China GB/T7984-2013 GB/T 32457-2015 Conveyor belt cover performance standard parameters | |||||
| Cover layer level | Tensile Strength | Elongation at Break | Abrasion loss | Change rate of tensile strength and elongation at break after aging | |
| Mpa | Kgf/cm2 | % | mm 3 | % | |
| H | ≥24 | ≥240 | ≥450 | ≤120 | -25~ +25 |
| D | ≥18 | 180 | ≥400 | ≤100 | -25~ +25 |
| L | ≥15 | 150 | ≥350 | ≤200 | -25~ +25 |
Experimental testing of fire-resistant, flame-retardant, and scorch-resistant conveyor belts
We test fire-resistant, flame-retardant, and scorch-resistant conveyor belts to determine if they can be safely used in these potentially hazardous environments.
Our fire-resistant, flame-retardant, and scorch-resistant belt testing facilities include:
• Drum friction testing machine
• Resistance and laboratory flame equipment
• Tensile testing machine.
| Self-extinguishing conveyor belt test | Drum friction test | Surface resistance test | High-energy propane combustion test |
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| The test requires exposing six independent belt samples to an open flame to cause them to burn. The flame source is then removed, and the burning time (flame duration) of the specimen is recorded. After removing the flame, airflow is directed at the specimen for a specified time, and the flame should not reignite. The time it takes for the belt sample to self-extinguish after removing the ignition source (flame) is then measured. The duration of continuous burning (visible flame) for each sample should be less than 15 seconds, and the maximum cumulative duration should not exceed 45 seconds. | The drum friction test simulates a belt slipping on a jammed pulley or a pulley rotating under a stationary conveyor belt. This test measures whether the surface temperature remains below a specified maximum temperature under a specific time and tension. Typically, the pulley surface temperature of rubber conveyor belts can reach up to 500°C (930°F). No flames or glowing visual appearance is allowed. |
Static charges may accumulate on the surface of the conveyor belt and ignite a mixture of combustible gases and air. Therefore, the surface resistance of the conveyor belt cover must be below 300 megohms. |
The conveyor belt must not conduct fire. To determine if the conveyor belt meets this requirement, a propane burner is used to ignite the conveyor belt. After removing the ignition source, the flame must extinguish itself within a certain time or distance. The typical sample full-width length for this test is 2 meters. |
Packaging and Transportation
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Packaging details
1. Waterproof nylon packaging, with a bottom steel pallet or wooden pallet.
2. Standard and appropriate export packaging.
3. Customized packaging is available according to customer requirements.
Frequently Asked Questions
1. Can I customize conveyor belts to meet my business needs?
►Yes, we are a professional custom conveyor belt manufacturer ， focused on customized conveyor belt solutions. We work closely with our customers to customize the belt width, thickness, material composition, and various quality aspects according to their specific operational requirements. This ensures that our conveyor belts perform optimally in various industrial environments.
2. What payment methods do you accept?
►We offer flexible payment methods to meet customer needs. Commonly used payment methods include Telegraphic Transfer (T/T) and Letter of Credit (L/C) ，especially for large orders. We can also negotiate other payment methods based on mutual agreement.
3. What after-sales service do you provide? And how do you guarantee your quality?
►We provide comprehensive after-sales service support, including 24/7 technical support, installation assistance, and maintenance advice 。We also provide regular follow-up services to ensure smooth product operation and long-term satisfaction! We have an in-house testing laboratory and adhere to the principle of qualified products before shipment! For many years, we have been one of the suppliers to internationally renowned companies, and our customers are located in various countries and industries, including mining, stone crushing, sand washing, ports, power, metallurgy, chemicals, coal, steel plants, cement plants, and construction, and our excellent quality is widely praised.
4. How do I place an order? What is the delivery time?
►You can contact us via WeChat, WhatsApp, phone, email, and website to place an order. For regular models, 5-7 days delivery ，the delivery time for other customized products depends on the product type and customization requirements.
5. Can I get samples for inspection and testing?
►Yes, samples can be sent for testing before bulk orders. Samples are created according to customer requirements, allowing customers to evaluate the performance of the belts and rollers.
6. Can I print my LOGO on the conveyor belt products?
►Yes, we are a customized manufacturer, supporting processing and OEM. Please inform us of your logo or design before mass production.
| Experienced and strong team | Advanced and first-class production equipment | First-class testing equipment | Successful customer collaborations |
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| Our global sales and R&D teams go beyond transactional relationships, providing personalized support at every stage of the customer journey. | We have invested heavily in advanced conveyor belt production lines, including automated systems that ensure the precision, reliability, and scalability of our products. | We have in-house testing equipment to ensure that every conveyor belt we produce undergoes rigorous quality control. From tensile strength and abrasion resistance to high-temperature resistance, we can meet your requirements. | We have established long-term partnerships with customers in the cement, mining, power plants, chemical, steel, coal, mining, and grain industries, fully demonstrating the trust and confidence companies have in us. |
Why choose our conveyor belts?
1. Engineering design and consulting
FANGNUO Rubber Conveyor Belt is one of the best custom belt manufacturers in China. Our conveyor belts are ideal for handling various heavy-duty and abrasive materials for bulk material handling, successfully meeting the needs of various industries, including stone crushing and screening, sand washing, fertilizer, grain conveying, steel plants, power plants, cement plants, metallurgy, coal, ports and docks, and construction. As a one-stop conveyor engineering manufacturer, we also provide excellent solutions for material handling problems and after-sales service for various applications.
2. Excellent customer service
We specialize in producing heavy-duty (nylon, EP polyester, EE, NN) multi-layer fabric core rubber conveyor belts, steel cord conveyor belts, corrugated edge conveyor belts, bucket elevator conveyor belts, and patterned herringbone conveyor belts, ring conveyor belts, etc. As a high-quality conveyor belt manufacturer, supplier, and exporter in China, we focus on providing customers with high-quality conveyor belts and professional services. FANGNUO Company has grown rapidly through innovation and professional services, and we are eager to expand our domestic and international markets!
3. Customization
OEM supported, meeting all your needs, regardless of size, even if you only have an idea, we will help you realize it.
We have a strong R&D team that can develop and produce products based on drawings or samples provided by customers.
4. Cost-effectiveness
Same quality, lower price; same price, better quality; fast production cycle; short time; efficient and durable; reliable quality. We are based in the mid-to-high-end market, and our products meet international standards.
Professional testing equipment (conveyor belt testing laboratory)
Application areas
Cement industry Limestone transportation |
Chemical industry Hazardous materials transportation |
Mining industry Raw material transportation |
Quarrying Sand and gravel conveying |
FAQ
Characteristics of Polyester Conveyor Belt
High modulus, low elongation, good heat stability, impact resistance and other characteristics, suitable for medium and long distance, high-speed, high-speed conditions of conveying materials.
Body material for heat-resistant conveyor belts
The subject material of the heat-resistant conveyor belt includes a skeleton material, a covering layer and a base material.
Selection of the diameter of the conveying roller
The selection of roller diameter should consider the following factors: the average specific pressure between the conveyor belt and the roller surface, the amount of deformation of the bag and the bag, the utilization rate of the allowable strength of the conveyor belt, the frequency of bending of the conveyor belt, the installation location of the conveyor and the conditions of use.
Main material of nylon conveyor belt
The main material of the nylon conveyor belt is nylon, but it does not have enough tension, so it is necessary to add a layer of industrial polyester cloth between nylon and nylon to increase the tension when making the finished product.
The advantages of the pattern conveyor belt
The pattern conveyor belt can ensure the smooth transportation of materials, with anti-skid, impact resistance, and high temperature resistance.
Related Products
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About Us
We specialize in producing heavy-duty EP nylon conveyor belts, steel cord conveyor belts, corrugated rib conveyor belts, bucket elevator conveyor belts, herringbone conveyor belts, ring conveyor belts, etc. As a Chinese conveyor belt manufacturer, supplier and exporter, we focus on providing customers with high-quality conveyor belts and better services.
Baoding Fangnuo Rubber Products Manufacturing Co., Ltd.
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