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Optimizing Mill Feed Chute: Designed for Life & Maintenance Practice

In the demanding world of mining operations, efficiency and reliability are paramount. The mill feed chute is essential in the grinding processes of SAG mills, AG mills, and Ball mills in mining operations.

The mill stands as the cornerstone of ore processing, where raw materials are crushed, ground, and refined to extract valuable minerals. A sudden breakdown in the mill feed chute not only halts these fundamental processes but also interrupts the entire production chain, from extraction to final product. This disruption not only results in immediate losses in output and revenue but also jeopardizes the efficiency and profitability of the entire mining operation.

The mill's smooth operation relies on regulating material flow effectively for grinding processes. The abrasion-induced wear disrupts this flow, reducing the efficiency. Inconsistent feed mechanisms cause performance fluctuations and subjecting machinery to high stress levels. Structural failures, whether from fatigue or impact, risk unplanned downtime and safety hazards. Proactive measures are essential to maintain uninterrupted operations in mining facilities.

Customers frequently encounter several challenges with feed chutes, such as:

Liner Life: Damaged or frequently worn liners by high abrasion & erosion make replacement difficult.

Maintenance Concerns: Ensuring safety during maintenance procedures can be problematic.

Design Aspects:

Preventing Operational Downtime: By reducing Feed Chute Wear and Maintenance 


Mill feed chute issues can lead to significant major downtime in the mining industry. One major problem is Rapid wear of chute liners, especially in spout, presents a significant challenge in mining and bulk material handling industries. Uneven wear patterns emerge when certain sections of the liners experience more abrasion than others due to repeated material impacts, increasing the risk of punctures. Identifying and rectifying the root causes of this differential wear is vital for improving chute performance and minimizing downtime.


The geometry of the mill feed chute, including its shape, angle is optimized to facilitate smooth material flow into the mill. A steep angle greater than the angle of repose of the ore material handled, helps maintain material flow & minimizes the risk of blockages and uneven wear.

The rock-box design ensures ease of maintenance with a deep structure that provides a rock-bed of material, effectively eliminating liner wear for the bottom liners. The physical dimensions are engineered to accommodate the feed material, and the construction features steel plate and beam fabrication for enhanced durability.

Discrete element method (DEM) simulations enable us to modify the design of the mill feed chute, ensuring optimal flow characteristics and reduce rapid wear and enhance operational efficiency in bulk material handling processes. 

Existing Chute

Tega DuroTek Mill Feed Chute

Operational Efficiency Enhancement: Elevating Our Promise


The design and maintenance of the mill feed chute present several critical issues. Spillage around the feed chute creates hazardous conditions, posing significant risks to personnel. The heavy-weighted liners are difficult to handle and manoeuvre, particularly in confined spaces. Additionally, servicing the upper sections of the feed chute is challenging, often necessitating work on ladders or in other difficult site conditions. These factors collectively affect operational efficiency and safety concern in the mill.


Tega mill feed chute feature modular designs that facilitate easier installation, maintenance, and replacement, reducing downtime and enhancing operational flexibility. These modular components can be quickly assembled and disassembled, allowing for more efficient and cost-effective maintenance procedures. 

The importance of the mill feed chute extends beyond its immediate operational benefits. In the context of modern mining, where sustainability and environmental responsibility are increasingly prioritized, optimizing the mill feed chute's design and functionality can contribute to broader sustainability goals. For instance, reducing spillage and dust emissions improves the environmental footprint of mining operations, aligning with regulatory requirements and community expectations. 

As industry leaders, we remain steadfast in our commitment to delivering customized solutions that empower our clients to achieve their operational goals and forge a more sustainable future for the mining sector. By focusing on the critical yet often overlooked components like the feed chute, we can drive transformative advancements that benefit both the industry and the environment. To find out more about how the Mill Feed Chutes optimize your productivity and lifespan, get in touch with Tega right now.