Multi-stage Composite
Heavy-load Buffering Device
Self-developed Heavy-duty Impact-resistant Equipment by Hezhong Machinery


1 Core Buffering Structure
Adopting a three-stage composite buffering structure consisting of buffer slide bar assemblies, torsion rubber and metal brackets, it forms a step-by-step energy absorption chain. The device effectively cushions the impact of falling materials to protect the conveyor belt from damage and prevent belt deviation.
2 Suitable for Severe Working Conditions Including Surface & Underground Coal Mines
The slide bars are made of nano ultra-high-molecular-weight polyethylene with flame retardant and anti-static properties. Matched with high-quality imported torsion rubber, the equipment greatly improves impact energy absorption efficiency while balancing safety and durability.
3 Overload Resistance & Safety Margin
It features outstanding overload resistance. When impact loads exceed the designed peak value, the torsion rubber can withstand repeated heavy impacts, avoiding sudden loss of buffering performance caused by complete compression failure of traditional spring buffer units.
4 Easy Inspection & Maintenance
It adopts an independent modular design. The buffer strip frames are made of alloy steel and fastened with T-bolts and lock nuts, with all components firmly bonded via hot vulcanization. Single faulty modules can be replaced separately without disassembling the entire unit, greatly cutting maintenance time and lowering maintenance difficulty.
5 Customized for Specific Working Conditions
Applicable belt width: B = 1400~2200 mm. The trough angle can be customized according to customers’ idler frame designs to achieve full-area support and smooth transition of the conveyor belt. It effectively reduces extra power consumption and meets personalized requirements of diverse working scenarios.
6 Wide Range of Application Scenarios
Widely used in heavy-duty material conveying industries such as coal, ports, electric power, metallurgy, chemical engineering, mines and building materials.