Analysis of Causes and Responsibility for Biomass Pellet Machine Mold Fracture

Analysis of Causes and Responsibility for Biomass Pellet Machine Mold Fracture

In the actual production of biomass pellet machines, some users experience mold fractures shortly after starting use, which can lead to conflicts between users and manufacturers. So, why do mold fractures occur, and should the manufacturer be held responsible?

Generally speaking, the molds for biomass pellet machines undergo strict forging and quenching processes before leaving the factory. The hardness and uniformity of the heat treatment meet the standards, and the inspection procedures are complete to ensure the quality. These components are typically mass-produced, and if a quality issue arises, the consequences can be serious. Therefore, manufacturers conduct rigorous checks before shipment. Reputable manufacturers strictly adhere to these processes, while counterfeit or substandard products cannot guarantee such quality control.

In practical use, the main causes of biomass pellet machine mold fractures include：

Metal or foreign objects in the raw materials： Impurities like metal or other foreign materials can create uneven pressure on the mold during operation, potentially causing it to crack or break.Uneven moisture distribution in the raw materials： If the moisture content in the raw materials is inconsistent, it can result in uneven pellet compression, which places excessive load on the mold, increasing the risk of damage.Machine blockage or stalling： When the equipment experiences blockages or stalls, it can create excessive pressure on the mold, leading to fractures or breakage.Improper gap adjustment between the roller and mold： If the gap between the press roller and the mold is set incorrectly—either too tight or too loose it can disrupt the pelletizing process, leading to increased wear or potential breakage of the mold.Poor matching of the mold and roller： An improper match between the mold and roller can cause uneven pressure distribution, which can gradually weaken and damage the mold.

These factors often lead to mold fractures. As an easily worn part, the mold is typically not covered under the manufacturer's warranty or service policy. Therefore, unless there is an issue with the mold's heat treatment or material, the user is responsible for replacing the mold once it fractures.

For biomass pellet machines and wood pellet machines, the warranty service is more of a reflection of mutual understanding and support between the manufacturer and the user. In the event of mold fracture, as long as both parties maintain a calm attitude, reputable manufacturers usually offer a satisfactory resolution.