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China Suppliers Factory Impact Idler Roller - Corrosion-Resistant, Durable Buffered Solutions for Conveyor Systems
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China Suppliers Factory Impact Idler Roller - Corrosion-Resistant, Durable Buffered Solutions for Conveyor Systems
Introducing our advanced Impact Idler, meticulously engineered for corrosive environments like coal washing plants, coking plants, and chemical plants. Designed specifically for the feeding points of belt conveyors, our Impact Idler significantly mitigates the impact of falling materials on the conveyor belt. With a toughness exceeding 10 times that of ordinary metals, it boasts a lifespan up to five times longer than traditional column shoes. Our idler features outstanding corrosion resistance, flame retardancy, anti-static properties, and is remarkably lightweight, Manufactured in China, our Impact Idler utilizes a specialized polymer material for the roller body, offering mechanical properties akin to bronze along with exceptional wear resistance and self-lubricating capabilities, ensuring no damage to the belt. The buffering roller excels in anti-corrosion performance, as both the roller body and sealing components are made from durable polymer materials that withstand harsh conditions. When deployed in corrosive environments, our Impact Idler's service life can exceed five times that of standard rollers, Partner with reliable suppliers and discover the unparalleled benefits of our durable Impact Idler from our trusted factory, designed to meet the rigorous demands of mining and industrial applications
The buffer roller is lightweight and has low rotational inertia. The specialized polymer material for rollers is lightweight, with a specific gravity of one seventh that of steel. Rollers made from this material weigh about half of ordinary rollers, have low rotational inertia, and low friction between rollers and belts.
Purpose
Buffer rollers are installed below the receiving section of the conveyor to reduce the impact of materials on the conveyor belt during material dropping, thereby extending the service life of the conveyor belt. The spacing between buffer rollers is generally 100–600 millimeters.
Standard Diameter Parameters
According to the Chinese national conveyor industry standards, there are four standard types of buffer roller diameters for belt conveyors with a belt width of 500mm–1400mm:
⌀ 89 mm⌀ 108 mm⌀ 133 mm⌀ 159 mm
With the emergence of wide belt conveyors, the diameter of buffer rollers has also shown an increasing trend.
Installation and Selection
In terms of installation:
The buffer roller is designed to increase the density of installation.
Regularly inspect and replace damaged rollers in a timely manner.
For conveyor belts with large drop heights, it is recommended to install buffer air locks and replace the buffer rollers with buffer beds.
In terms of purchasing, the following precautions should be taken based on the characteristics of the buffer roller:
Radial runout of the roller
Flexibility of the roller
Axial displacement
Dust and water resistance of the roller
Axial bearing capacity of the roller
Impact resistance of the roller
Protection
1
Buffer Roller Temperature Protection
When the temperature of the belt conveyor drum exceeds the limit due to friction with the belt, the detection device installed closely to the drum sends an overtemperature signal. After receiving the signal, the receiver delays for 3 seconds, causing the execution part to act, cutting off the power supply to the motor, and the conveyor automatically stops running, providing temperature protection.
2
Roller Group Speed Protection
If the conveyor malfunctions — such as the motor burning out, the mechanical transmission part being damaged, the belt or chain being pulled apart, or the belt slipping — the magnetic switch in the accident sensor SG installed on the driven part cannot be closed or cannot be closed at normal speed. At this time, the control system will follow the inverse time characteristic and after a certain delay, the speed protection circuit will take effect, causing the executing part to act and cutting off the power supply to the motor to avoid the accident from expanding.
3
Buffer Roller Coal Bunker Coal Level Protection
There are two coal level electrodes in the coal bunker — high and low. When there is no empty car in the bunker, the coal level will gradually rise. When the coal level reaches the high level electrode, the coal level protection will be activated. Starting from the first belt conveyor, each conveyor will stop one by one due to the stacking of coal at the tail of the machine.
Frequently Asked Questions
Q
What material are buffer rollers made from, and why is it beneficial?
Buffer rollers are made from a specialized polymer material that has a specific gravity of one seventh that of steel. This makes them approximately half the weight of ordinary rollers, resulting in lower rotational inertia and reduced friction between the roller and the conveyor belt — improving energy efficiency and belt longevity.
Q
What is the main purpose of installing buffer rollers on a conveyor?
Buffer rollers are installed beneath the receiving section of the conveyor to absorb and reduce the impact force of falling materials on the conveyor belt. This significantly extends the service life of the belt and reduces maintenance costs.
Q
What are the standard diameter sizes of buffer rollers?
According to Chinese national conveyor industry standards, the four standard buffer roller diameters for belt conveyors with belt widths of 500mm–1400mm are: ⌀89mm, ⌀108mm, ⌀133mm, and ⌀159mm. Larger diameters are increasingly used with wider belt conveyors.
Q
What should be considered when selecting buffer rollers for purchase?
Key selection criteria include: radial runout of the roller, flexibility, axial displacement, dust and water resistance, axial bearing capacity, and impact resistance. Evaluating these factors ensures the selected roller is suitable for the specific operating environment and load requirements.
Q
How does the temperature protection system work for buffer rollers?
When the conveyor drum's temperature exceeds the safe limit due to friction with the belt, a detection device sends an overtemperature signal. After a 3-second delay, the system cuts off the motor's power supply and automatically stops the conveyor, preventing further damage caused by overheating.
Q
What is recommended for conveyor belts with large material drop heights?
For conveyor systems with large drop heights, it is recommended to install buffer air locks and replace standard buffer rollers with buffer beds. This provides greater impact absorption, better protects the conveyor belt, and reduces downtime caused by belt damage.
Boao Rubber
