In December last year, our company shipped a 66-meter flame-retardant conveyor belt with a bandwidth of 800mm for material transportation in a coal industry in Canada.

  Flame-retardant conveyor belts, also known as whole-core flame-retardant conveyor belts, are made of an integral belt core that is impregnated with polyvinyl chloride impregnated paste and then plasticized or vulcanized.

  It has the characteristics of high strength, large transportation capacity, and balanced transportation. At the same time, this product It has good flame retardant, antistatic, impact resistance, wear resistance, corrosion resistance and other properties. This product is mainly suitable for underground transportation in coal mines, and can also be used for material transportation in the metallurgical and chemical industries.

  As we all know, rollers are the important component part of the belt conveyor, it is one of the key component that affects the transmission effect.

  Its internal structure is made of drum skin, roller shaft, bearings, bearing seats, seals, retaining, rings, etc. Its weight accounts for about 30％-40％ the weight of the whole machine. In the belt conveyor, roller is used for supporting the conveyor belt and the cargo that is still the main support device of the flame retardant conveyor belt, it stands over 70% resistance which makes the roller become the high frequently replaced parts in the whole belt conveyor.

  Plenty of enterprises all reflect the rollers in the conveyor belt have a short using life and always need to be replaced affect the production seriously. The price of rollers accounts for 5％-30％ of the entire machine, so replace the rollers frequently always costs expensively for the enterprises. According to the material could be divided into rubber roller, porcelain roller, nylon roller and the insulated roller. Its size could meet the installation requirements of type TD75 belt conveyor.

  Trough shaped roller have ordinary type, forward tilt type, quick change bearing type, hanging type, variable groove angle type, transition type, V-type, etc. Parallel rollers include ordinary type and steel rubber type, spiral type, etc. Self aligning rollers include universal type, friction reversible type, strong type, cone type, spiral type, combined type, etc.; buffer rollers include spring plate type, buffer ring type, strong buffer type, and adjustable elastic type. , hanging type, etc. For companies, reduce the cost effectively is the important thing.

  Flame retardant conveyor belt is usually used under a harsh environment, sealing element becomes the nature barrier of the roller. If the sealing is not good, the water, dust, coal and slime will enter into the bearing lead to the lubrication oil to fail to destroy the lubrication oil of the bearing. As time passes, roller will fail or stuck by the dust, the inside will be eroded gradually to reduce the using life by hundreds of times. So in the design or the production processes need to strong the sealing performance of the rollers.

  When designing the bearing applied the deep groove ball bearings with dust covers are used, it can not only guarantee the inside of the bearing is clean but also enhanced the axial load bearing capacity of the rollers. Reduce the high frequency damage to the bearing caused by the high frequency impact of axial force. It can also ensure the lubrication performance of the rollers to improve the actual using life of the rollers. Roller is consist of a smooth shaft, a steeped shaft and a hollow shaft. Due to the simple processes of the drawing shaft, cost is low, using life is short. The hollow shaft is lighter has simple structure the operating resistance coefficient is small, hence the using life is longer.

  The materials of the flame retardant conveyor belts rollers is strong and durable and has the longer natural using life. The shaft material apply cold drawn round steel, the bearing seat is stamped steel plate, the sealing structure is PDC type, with three sealing devices that dust proof, water proof performance are better than the relevant standards of nation. After installing the roller with high strength, small meridional runout, small rotational resistance, light weight, low energy consumption, especially the corrosion resistance, flame retardant, anti static and other outstanding features and has a long using life.