NAM presents this Q&A with Mathew Augustine, head of Product Development for Continental, about how industry challenges are innovating mining conveyor belts.
Manufacturers of mining equipment are faced with increasing prices, supply constraints and environmental impacts when it comes to the materials and components they use to manufacture critical mining equipment. These challenges are then passed along to mining operators in the form of higher costs, longer lead times and delays.
Some manufacturers are innovating with new materials and new technologies to overcome these challenges. Nylon, for example, has long been the go-to material for conveyor belts due to its impact resistance and tensile strength. However, nylon presents risks resulting in price inflation and production delays, which can have a negative impact on mining operation profit margins. Smart belt monitoring systems are also being used to improve safety and enhance overall productivity and cost efficiency for end users.
Mathew Augustine, head of Production Development at Continental, answers some of the industry’s biggest questions about continuing to use nylon as a conveyor belt material, the use of High Energy Polyester (HEP) as an alternative, and smart monitoring to help address belt maintenance and longevity.
Q: What are the current challenges with traditional conveyor belt material, like nylon?
Augustine: Nylon is an expensive reinforcement material and already-high prices are on the rise. The raw material costs of nylon have increased significantly over the past few years, and according to data from Data Bridge Market Research, fluctuation in cost and availability of raw material is projected to challenge the nylon market until 2029. Nylon’s production capacity is constrained, leading to supply risks and market instability. Unforeseen events like weather, fire and transportation delays can lead to further supply issues. In addition, geopolitical tensions, including uncertainty around tariffs, have added to supply chain challenges, leading to increased costs and uncertainty in material availability.
Q: How is the industry responding to these challenges?
A: Manufacturers are researching and engaging in alternative materials and innovating in material science to maintain production levels. HEP is gaining traction as a viable alternative to nylon, particularly when it comes to conveyor belt manufacturing.
Q: What is High Energy Polyester?
A: High energy polyester is derived from polyester, but with more “nylon-like” characteristics than standard polyester. It can be used in place of nylon in all textile belts in mining. HEP is designed to provide the features and benefits of nylon yarn that can be used in either the weft (impact resistance) or warp (lengthwise tension-carrying) direction of the belt, or both, and is suitable for any weave design. While the performance of HEP is equal to or better than that of nylon, the availability of HEP far surpasses that of nylon. HEP has 10 times more global production capacity than nylon, which provides more stability in supply, pricing and lead times.
Q: Is HEP environmentally friendly?
A: HEP is an environmentally sustainable material. Less energy is used in the production of HEP, reducing the CO2 – and thereby the carbon footprint – of HEP material development. The sustainability benefits of HEP are further demonstrated by the fact that HEP is recyclable, making this beneficial material part of the circular economy that is integral to sustainability in manufacturing.
Q: How does HEP compare to nylon in testing?
A: Customer feedback and internal testing at Continental, where HEP is being integrated into conveyor belt manufacturing, validates the performance of HEP for aggregate and mining applications when it comes to rip, tear, tensile strength and other variables.
Q: How will this new material impact the industry?
A: High energy polyester is more than just a material innovation — it represents a shift towards cost stability, sustainability, and long-term supply security. Mine operators who are frustrated with rising costs and equipment delays that have a negative impact on profit margins can discuss new, more readily available materials with their equipment providers.
Q: What other innovations are on the horizon for conveyor belt technology?
A: Smart belt monitoring systems can detect wear, misalignment, and other potential issues before they escalate into catastrophic failures. By leveraging predictive maintenance, mine operators can schedule repairs proactively during planned maintenance windows rather than facing months of unexpected downtime due to sudden belt failures. These innovations not only improve safety but also enhance overall productivity, belt longevity and cost efficiency.
Beyond conveyor belts, the industry is exploring other groundbreaking technologies such as hydrogen-powered equipment and AI-driven product design. Hydrogen technology is emerging as a sustainable alternative for heavy-duty mining applications, while AI is helping to streamline manufacturing processes and optimizing material selection to enhance product performance. These advancements are shaping the future of mining, driving efficiency, sustainability, and reliability.
Note: Mathew Augustine has over 20 years of experience in tires, hose, coatings and polyurethane industries.