Backing Compound‑Free Cone Crusher – Faster Liner Changes, Lower Emissions
Why the shift to backing compound-free liner systems is a game-changer for cone crusher maintenance, environmental compliance, and operational efficiency
Cone crusher liner changes have traditionally been one of the most time-consuming and labor-intensive maintenance tasks in any aggregate or mining operation. The conventional process requires pouring epoxy or zinc-based backing compounds into the gap between the mantle and the head assembly, followed by a curing period that can extend up to 24 hours before the crusher can be returned to service. This not only ties up the equipment but also exposes maintenance teams to chemical bonding agents and volatile organic compounds (VOCs). A new generation of cone crushers is changing that. At CONEXPO 2026, Sandvik unveiled the CH662 cone crusher featuring a backing compound-free design that eliminates the hardening time during liner changes and reduces operator exposure to bonding agents. This shift reflects a broader industry movement toward faster, safer, and more environmentally responsible maintenance practices. At OCP Mechanical Company, with over 40 years of manufacturing experience, we supply HST Series and HP Series cone crushers engineered for reliable performance and simplified maintenance, all at factory-direct prices.
Eliminating up to 24 hours of downtime with compound-free liner systems
Traditional cone crusher liner installations require backing compounds—typically epoxy or zinc-based materials—to fill the void between the mantle and the head, ensuring a secure fit and even load distribution. While effective, these compounds introduce significant operational drawbacks. The curing process can take up to 24 hours, during which the crusher must remain idle. For a 200 TPH operation, a 24-hour delay represents nearly 5,000 tonnes of lost production. The backing compound-free design featured in modern cone crushers eliminates this curing time entirely. Liner changes can be completed in a single shift, and the crusher can be returned to service immediately. This reduction in downtime directly improves plant availability and throughput. For operators, this translates into a significant improvement in productivity and a reduction in the cost per tonne of production. While the CH662 represents a significant advancement in this area, OCP Mechanical's HST Series cone crushers are designed with liner systems that simplify installation and removal, reducing the time and effort required for maintenance and enabling faster changeovers compared to traditional designs. All product specifications, including capacity and power ratings, are continuously updated; for the latest parameters, please consult our online customer service.
Reducing VOC emissions and chemical exposure in maintenance operations
The use of backing compounds introduces environmental and health concerns. The compounds themselves are typically solvent-based and contain volatile organic compounds (VOCs). During application, these VOCs are released into the atmosphere, contributing to air pollution and creating a potential health hazard for maintenance personnel. As environmental regulations tighten and workplace safety standards become more stringent, the push toward lower-emission, lower-risk maintenance practices is accelerating. By eliminating the need for backing compounds, modern cone crushers reduce VOC emissions and eliminate the associated health and safety risks. This is particularly important in regions with strict environmental regulations, such as Europe and North America, where compliance with emission standards is a critical business consideration. For operators in markets with tightening environmental standards, the ability to demonstrate lower emissions and safer maintenance practices is becoming a competitive advantage. OCP Mechanical's cone crushers are engineered with consideration for environmental and safety requirements, supporting operators in meeting their sustainability goals. Prices are for reference only and are subject to change based on configuration and market conditions.
Simplified maintenance and reduced labour costs
Beyond the direct time and environmental benefits, compound-free liner systems simplify the overall maintenance process. The application of backing compounds requires careful preparation, mixing, and application, often requiring skilled labour and specialised equipment. The cleanup process is also messy and time-consuming. Eliminating the compound removes these steps entirely, reducing the skill level required for liner changes and lowering the associated labour costs. For operators with limited maintenance resources or those operating in remote locations, this simplification is a significant advantage. The ability to perform liner changes with fewer personnel and less specialised equipment reduces the overall cost of maintenance and improves the consistency of the work. At OCP Mechanical, our cone crushers are designed with maintenance access and ease of service as core design principles, enabling operators to achieve faster changeovers and lower maintenance costs. By choosing equipment designed for simplified maintenance, operators can reduce their operating costs and improve their overall efficiency.
The growing importance of sustainable equipment design in the aggregate industry
The aggregate and mining industries are under increasing pressure to reduce their environmental footprint. Equipment manufacturers are responding by designing machines that consume less energy, produce fewer emissions, and use materials and processes that are more sustainable. The shift to backing compound-free liner systems is part of this broader trend. For operators, the adoption of sustainable equipment design is not just about compliance—it is about building a competitive advantage. Customers, regulators, and investors are increasingly rewarding operators who can demonstrate a commitment to sustainability. Investing in equipment with lower emissions, reduced waste, and improved safety features can enhance a company's reputation, strengthen relationships with stakeholders, and open new market opportunities. OCP Mechanical is committed to supporting our customers in this journey, offering equipment that delivers reliable performance while supporting sustainability goals.
Sample feature comparison (For reference only)
| Feature | Traditional Design | Modern Compound‑Free Design |
|---|---|---|
| Liner change time | 24+ hours (with curing) | Same shift * |
| VOC emissions | Present (solvent‑based compounds) | Eliminated * |
| Chemical exposure | Operator contact with compounds | Reduced * |
| Labour complexity | High (mixing, application, cleanup) | Simplified * |
All figures and recommendations are for reference only and are continuously updated. For the latest parameters, please consult our online customer service. Prices are for reference only and are subject to change based on configuration and market conditions. Actual results may vary depending on feed characteristics, operating conditions, and maintenance practices. OCP Mechanical reserves the right to update technical data and pricing without prior notice.
Why OCP Mechanical is your partner for modern crushing solutions
With over 40 years of manufacturing experience, OCP Mechanical combines engineering excellence with a deep understanding of the global aggregate and mining sectors. We are a factory-direct supplier, meaning you avoid the markups charged by dealers and intermediaries. Our HST Series and HP Series cone crushers are built with high-quality components and are designed for reliable performance in the most demanding applications. We provide comprehensive after-sales support, including spare parts availability, technical assistance, and on-site training. Our logistics team has extensive experience shipping to global destinations, ensuring timely delivery of equipment and parts. We are committed to helping you achieve efficient, productive crushing that supports your business growth.
Conclusion – Invest in modern, sustainable crushing solutions for your operation
The shift toward backing compound-free liner systems represents a significant advancement in cone crusher maintenance and environmental performance. For quarry and mining operators, this trend offers an opportunity to reduce downtime, lower emissions, and improve safety. OCP Mechanical offers modern crushing solutions that help you achieve these benefits, backed by expert guidance and responsive after-sales support. Our online customer service team is available 24/7 to provide free consultation, technical data, and a customised quotation for your operation. Click the chat button now – let us help you build a more efficient, sustainable crushing operation.
