Home >
Hot Products >
China Suppliers Factory Rubber Buffer Idler Roller for Corrosive Environments and Conveyor Belt Protection
1 / 2
China Suppliers Factory Rubber Buffer Idler Roller for Corrosive Environments and Conveyor Belt Protection
The Impact Idler is an innovative solution designed for demanding corrosive environments such as coal washing plants, coking plants, and chemical facilities. Emerging from leading China suppliers, this high-performance idler is strategically placed at the feeding point of belt conveyors to effectively minimize the impact of falling materials on the conveyor belt, Featuring over 10 times the toughness of standard metals and five times the lifespan of traditional column shoes, this idler excels in corrosion resistance, flame retardancy, anti-static properties, and lightweight design. It is particularly well-suited for mining applications. The roller body is crafted from a specialized polymer material, offering mechanical properties akin to bronze, outstanding wear resistance, and excellent self-lubrication, all while preventing damage to the conveyor belt, Our buffering roller is engineered with superior anti-corrosion capabilities, using polymer materials for both the roller body and sealing components. In corrosive environments, its service life can surpass that of ordinary rollers by more than five times. Trust our factory to provide you with top-quality impact idlers that will Enhance the durability and reliability of your conveyor systems
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:
Ø 89 mmØ 108 mmØ 133 mmØ 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. It is also important to 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 point, the control system follows the inverse time characteristic and, after a certain delay, the speed protection circuit takes 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
QWhat is a buffer roller and what is its primary function?
A buffer roller is a specialized conveyor component installed below the receiving section of a conveyor belt. Its primary function is to absorb and reduce the impact force generated when materials are dropped onto the conveyor belt, thereby extending the belt's service life.
QWhat material is used to make buffer rollers, and why is it advantageous?
Buffer rollers are made from a specialized polymer material. This material has a specific gravity of only one seventh that of steel, making the rollers approximately half the weight of ordinary steel rollers. This results in lower rotational inertia and reduced friction between the rollers and the conveyor belt.
QWhat are the standard diameter sizes for buffer rollers?
According to Chinese national conveyor industry standards, there are four standard buffer roller diameters for belt conveyors with belt widths from 500mm to 1400mm: Ø 89mm, Ø 108mm, Ø 133mm, and Ø 159mm. As wide belt conveyors have become more common, larger diameter options have also emerged.
QWhat spacing should be used when installing buffer rollers?
The recommended spacing between buffer rollers is generally between 100 and 600 millimeters. For conveyor belts with large drop heights, it is additionally recommended to install buffer air locks or replace the buffer rollers with buffer beds for enhanced protection.
QWhat key factors should be considered when selecting buffer rollers?
When selecting buffer rollers, important considerations include: radial runout of the roller, flexibility of the roller, axial displacement, dust and water resistance, axial bearing capacity, and overall impact resistance. Evaluating these factors ensures the chosen roller is suitable for the operating conditions.
QWhat protection mechanisms are associated with buffer rollers?
Buffer roller systems incorporate three main protection mechanisms: (1) Temperature protection — the conveyor automatically stops if the drum temperature exceeds safe limits; (2) Speed protection — the system cuts motor power if the conveyor speed falls outside normal operating range due to mechanical failure; (3) Coal level protection — the conveyor system shuts down progressively when the coal bunker reaches a high coal level threshold, preventing overflow.
Boao Rubber
