Roller conveyors are machines that are made from mostly steel and stainless steel that use powered or non-powered conveyor rollers to move the loads of goods or products from one place to another. Roller conveyors help to move items without causing any damage. They are being used in warehouses, factories, and other businesses.
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A conveyor roller is a key component in many conveyor systems. As its name suggests, it is a roller that helps to move items along the conveyor belt. Conveyor rollers are usually made from strong and durable materials such as steel, making them ideal for high-traffic areas.
In its simplest form, a roller consists of a steel tube, a shaft, and ball bearings. They are also often coated with a low-friction material, which helps to keep the conveyor belt moving smoothly.
In some cases, conveyor rollers may also be equipped with additional features such as motors, as is the case with MDR conveyors. These additional features can help to improve the efficiency of the conveyor system.
MDR stands for motor-driven roller, and these rollers are driven by an electric motor. MDR conveyor rollers are used in various applications, including package handling, assembly line manufacturing, and warehouse automation. MDR conveyor rollers are available in various sizes and styles to suit the needs of any application.
MDR conveyor rollers are typically used in accumulation and high-speed sortation conveyor systems but can also be used in other types of conveying systems, such as gravity conveyors. MDR conveyor rollers are more expensive than conventional idler rollers, but they offer several advantages, including higher capacity, longer life, and better reliability. They also offer a much higher ROI as compared to other types of conveyors. Energy savings alone could be worth the switch to some.
Roller conveyors are versatile; they work well in various settings, including warehouses, manufacturing plants, and airports. One of the main benefits of using a roller conveyor is its efficiency. Roller conveyors can move large items with little effort, making them ideal for use in high-volume settings.
Making conveyors a cost-effective solution for many businesses. Such as the Gravity Conveyor.
Roller conveyors are also low maintenance and need little upkeep, reducing operating costs. Additionally, some roller conveyors are inexpensive to buy and use. Offering an efficient and cost-effective solution for many businesses.
All though roller conveyor has many advantages, it does have their drawbacks.
Roller conveyors are not suitable for all types of businesses or products. They are not always the most efficient method of transportation. Conveyors also need a certain amount of space to operate, so they might not be suitable for all business locations.
As a manufacturer or purchaser, it is very important to understand the quality factors of conveyor idlers to ensure the smooth operation of the production line. This article will introduce you to the key factors that affect the quality of conveyor idlers, so as to help you choose high-quality idlers, improve production efficiency and reduce maintenance costs.
1. Bearing quality
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The service life of the conveyor idler mainly depends on the performance of the bearing and sealing. If the bearing and sealing performance of the conveyor idler is good, the service life of the conveyor idler will be greatly extended. The test results show that the friction resistance of the bearing accounts for about 1/4~1/8 of the rotation resistance of the conveyor idler. At present, the bearing models adopted by the idler are KA, KA, KA, KA and other rolling bearings.
The quality of the bearing determines the operating life. At present, a considerable number of manufacturers choose low-priced, low-quality bearings to assemble conveyor idlers, whose inner and outer diameter dimensional accuracy, hardness and clearance are not up to the technical standard requirements. Therefore, bearing brands with high precision and stable quality must be selected, such as SKF, FAG, NSK, etc.
2. Bearing housing quality
Poor machining accuracy of the inner hole of the bearing housing causes the bearing to move axially in the bearing housing, which is one of the reasons for damaging the idler conveyor idler.
For stamping bearing housings, 3 sets of stamping dies are used to complete the finished product. The quality of the stamping die determines the quality of the bearing housing, and also determines the life of the bearing, which is ultimately related to the life of the idler. Therefore, the conveyor idler manufacturer must strictly inspect the purchased bearing housings in accordance with the inspection procedures.
3. Welding accuracy of bearing housing and conveyor idler tube body
The welding quality between the bearing housing and the tube body is poor, causing axial separation or dust and water infiltration into the conveyor idler bearing, causing the conveyor idler to be damaged. Therefore, the welding accuracy and quality of the bearing housing and the tube body must be very important, and argon or CO2 gas shielded welding should be selected for welding. During the welding process, there are strict requirements for welding voltage, welding current, air flow, wire feeding speed, and tube body selection line speed. Verification and calibration are required for welding equipment, welding wire materials and welding operators.
4. Selection of grease
Improper selection of grease will cause bearing damage, which in turn will cause damage to the conveyor idler. The MT821- coal industry standard clearly requires the selection of 3# lithium base grease, and all manufacturers must comply with it. Otherwise, the conveyor idler will be damaged after a few hours of operation.
The emphasis here is: For conveyor idler bearings operating at -25°C, a special type of low-temperature resistant aviation grease must be selected.
5. Conveyor idler assembly
Conveyor idler assembly must not only produce special process equipment, but also must be completed on the conveyor idler press. Only in this way can the axial specified assembly pressure of the bearing, seal assembly and retaining ring be controlled. It is also required that the constructor must pass the technical training examination and pass the assembly fitter to operate
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