| Model N/mm (Tensile Strength)： |
| Grade | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Model | 680s | 800s | 1000s | 1250s | 1400s | 1600s | 1800s |
Flame retardant performance:
(1) Drum grinding number: The surface temperature of the drum shall not exceed 325 ℃.
(2) Spray lamp combustion: The average flameless time of the full thickness specimen after removing the spray lamp is not more than 3.0 seconds, and the average flameless time after removing the covering layer is not more than 5.0 seconds.
(3) Propane combustion: Non destructive length greater than 250mm
Surface resistance value: The average value of the top and bottom is not greater than 3.0 × 108 Ω Security performance: The conveyor belt has passed flame retardant testing and electrostatic testing, and has obtained a certificate of conformity, coal safety mark, and customer recognition. Mechanical properties: Excellent mechanical performance, providing users with the longest service life and economical installation and use. Longest service life: The service life of the belt body is determined by the following factors: a dense belt core woven from warp and weft filaments and covered cotton; Immersing with specially formulated PVC material achieves extremely high bonding strength between the core and the cover adhesive; Specially formulated cover adhesive; So as to make the belt resistant to impact, tear, and wear. This product has the characteristics of wear-resistant, anti-static, waterproof, flame-retardant, high strength, excellent safety performance, and lower cost and price compared to other flame-retardant conveyor belts. It is one of the commonly used and popular flame-retardant conveyor belt varieties at home and abroad, especially suitable for conveying places with small slopes underground such as coal mines. Product Structure: This product uses integral core as the skeleton material, and is made by impregnating and coating PVC material with excellent anti-static, flame retardant and other properties, and then plasticizing it. Joint performance: According to the strength of the belt and the core structure, mechanical fasteners can be used for connection, and the strength can reach 50% -100% of the strength of the belt; By using vulcanized joints, their strength can reach 60% -100% of the strength of the belt. Multiple forms of joint methods can meet the different needs of customers, ensuring the safe and efficient operation of the system. |
| The average surface resistance | ≤ 3 × 108 Ω |
| The maximum allowable temperature for the friction performance of the drum | ≤ 325 ℃it is required that there is no flame or flameless combustion phenomenon |
| The average value of the alcohol spray lamp combustion test | ≤ 3S (with cover layer)the single value is ≤ 10S (with cover layer), the average value is ≤ 5S (without cover layer), and the single value is ≤ 15S (without cover layer) |
| Propane roadway combustion performance | unburned retention section length>250mm |
| High energy tunnel propane combustion test | full width and undamaged length section>2250 |
| Product specifications | Tensile strength (N/mm) | elongation at break (%) | tear force (N) ≥ | ||
| Vertical ≥ | Horizontal ≥ | Vertical ≥ | Horizontal ≥ | ||
680S | 680 | 265 | 15 | 18 | 1090 |
800S | 800 | 280 | 15 | 18 | 1180 |
| 1000S | 1000 | 300 | 15 | 18 | 1180 |