Mining Conveyor Belts: Varieties and Selection Guidance

A mining conveyor belt is the load-carrying heart of any bulk handling line. It moves crushed ore, coal, aggregate and minerals from the pit or crusher to the next stage of processing, often around the clock and in some of the harshest working conditions in industry. Because the belt carries the entire production flow, choosing the wrong construction usually shows up quickly as fast cover wear, tracking problems or unplanned downtime.

This guide explains the main mining conveyor belt types, the specialty covers designed for heat, chemicals and fire risk, and a simple five-step selection process. It is written for procurement teams, mine operators and project engineers who need to compare options and write a clear specification.

Main Types of Conveyor Belts for Mining

Most mining conveyor belts differ in two areas: the carcass that carries tension, and the cover rubber that protects it. Understanding both makes every other selection decision easier.

Steel Cord Conveyor Belt

A steel cord conveyor belt uses a single layer of parallel steel cables as its tension member. This construction offers very high tensile strength and extremely low stretch, which makes it the standard choice for long-distance, high-capacity trunk conveyors such as overland lines and main haulage drifts. Because the cords run straight, the belt keeps its dimensions well over years of service. The trade-offs are a larger minimum pulley diameter and higher initial cost, so steel cord belts make the most sense where distance and tonnage justify the investment.

Nylon Conveyor Belt

A nylon conveyor belt uses NN fabric plies, where both warp and weft threads are nylon. Nylon carcasses are known for high elasticity and excellent impact tolerance, which helps at crusher discharge points and loading zones where material drops onto the belt. A nylon canvas mining conveyor belt absorbs shock well and suits medium-distance, heavy-load circuits with frequent starts. Nylon absorbs some moisture, so it is best matched to applications where dimensional stability requirements are moderate.

Chevron Conveyor Belt

On inclined conveyors, loose material can roll back down a smooth belt. A chevron conveyor belt solves this with a patterned surface - V-shaped or herringbone profiles - that grips the material and allows steeper angles of inclination. Patterned belts such as concave-convex herringbone designs are widely used for sand, gravel, crushed stone and minerals on inclines where a flat belt would slip. The pattern also helps with wet or sticky material that tends to slide on smooth covers.

Corrugated Sidewall Conveyor Belt

When the lift is steep or space is tight, a corrugated sidewall conveyor belt takes inclination one step further. Flexible corrugated sidewalls along both edges, combined with cross cleats, contain the material so the belt can lift it vertically or at very steep angles. This design removes the need for transfer points and long ramps, which saves space in confined plant layouts. Sidewall belts are common in ports, mines and processing plants where material must climb quickly from ground level to a hopper or stockpile.

Heat Resistant, Acid-Resistant and Flame Resistant Conveyor Belts

Type and carcass are only half of the specification. The cover compound decides how long the belt survives its specific duty, so three special-purpose families matter in mining and mineral processing.

Heat Resistant Conveyor Belt

Cement clinker, sinter, hot coke and foundry materials destroy standard rubber covers through heat aging and cracking. A heat resistant conveyor belt uses a specially compounded cover that keeps its properties at continuous high material temperatures, protecting the carcass beneath. For mines and cement plants handling hot material, specifying the actual material temperature at the loading point is the key step, because cover grades differ by temperature range.

Acid and Alkali Resistant Conveyor Belt

Some ores, fertilizers and chemical processes expose the belt to acidic or alkaline contact, which attacks ordinary rubber from the surface inward. An acid and alkali resistant conveyor belt, commonly built on an EP carcass such as EP 200, uses a cover compound that resists chemical corrosion. It is a frequent choice in chemical mines, fertilizer plants and ore dressing lines where pH conditions would quickly degrade a standard belt.

Flame Resistant Conveyor Belt

In underground coal mines and other combustible dust environments, fire safety rules commonly require flame resistant and anti-static belts. Flame resistant covers are formulated to self-extinguish, and anti-static properties prevent static build-up that could ignite dust. Special-duty versions, such as flame resistant weigh feeder belts, combine this safety behavior with wear resistance for coal feeding and mineral processing equipment. Always confirm the applicable local standard for the mine before ordering.

How to Choose a Mining Conveyor Belt

Selection becomes manageable when it is broken into five questions. Working through them in order produces a specification that suppliers can quote accurately.

1. Define the material. Record lump size, sharpness, abrasiveness, moisture and temperature. Hard, angular ore demands thick, highly abrasion-resistant covers, while fine, wet material calls for sealing and possibly patterned surfaces.
2. Calculate tension and distance. Longer and higher-capacity conveyors need stronger carcasses. Short and medium lines usually suit fabric construction, while long overland conveyors favor steel cord.
3. Check the incline. Flat lines use smooth belts; moderate inclines suit chevron patterns; steep lifts justify corrugated sidewall construction.
4. Match the environment. High material temperature, chemical contact, cold weather or fire risk each point to a specific cover family. Underground coal work generally requires flame resistant, anti-static grades.
5. Verify the surrounding equipment. Pulley diameters, idler condition and the planned splice method all affect belt life. A premium belt cannot survive misaligned idlers or undersized pulleys, so inspect the system before finalizing the order.

The table below summarizes how the main types compare.

One final principle keeps budgets honest: compare total cost over the belt's service life, not only the purchase price. A tougher cover or a better-matched carcass usually costs more upfront but runs longer between replacements, and avoiding one unplanned shutdown often pays the difference.

From Specification to Supply

Working with a factory-integrated manufacturer simplifies the whole process. Eastrise (Shanghai Eastrise Trading) manufactures full-series conveyor belts - including nylon and canvas belts, steel cord belts, corrugated sidewall steep-angle belts and concave-convex herringbone belts - together with rollers, drums, rubber hoses and fittings for mining duty. The company supports OEM customization, applies quality control across the production process, and exports to Southeast Asia, Central Asia and Russia. You can review the product range at the Eastrise official website and request a quotation against your material, distance and site conditions.

Final Thoughts

A mining conveyor belt is a system decision, not a catalogue purchase. Match the carcass to tension and distance, match the cover to temperature, chemistry and fire risk, and confirm that pulleys, idlers and splices support the choice. With those five questions answered, buyers can compare quotations on equal terms and specify a belt that runs reliably in tough mine environments.