Backing Compound-Free Cone Crusher – Faster Liner Changes, Less Downtime, and Smarter Control

Why the shift to backing compound-free liner systems is a game-changer for cone crusher maintenance, operational efficiency, and environmental performance

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. A new generation of cone crushers is changing that. At CONEXPO-CON/AGG 2026, Sandvik unveiled the new CH442 and CH662 cone crushers, representing the next evolution of the CH400 and CH600 series. The new models feature a backing compound-free design that eliminates the hardening time during liner changes, while introducing strengthened mechanical structures, upgraded automation, and longer-wear components. This shift reflects a broader industry movement toward faster, safer, and more environmentally responsible maintenance practices. While innovations like these continue to raise the bar for the industry, OCP Mechanical Company, with over 40 years of manufacturing experience, supplies 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 CH442 and CH662 represent 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.

Strengthened mechanical design – durability where it matters most

The new cone crushers feature a strengthened mechanical design that supports maximum availability in demanding conditions. Key upgrades include a new strengthened top shell with 10 per cent more weight and better material distribution, together with a new main shaft that contributes to the reliability needed for maximum crusher availability. The spider bushing has also been re-engineered to extend its lifetime compared to previous designs, and it now comes with an integrated temperature sensor connected to the automation alarm systems. These improvements are not just incremental—they are designed to address the core mechanical challenges that cause unplanned downtime in hard rock applications. For operators processing hard, abrasive materials such as granite, basalt, and iron ore, these mechanical upgrades translate directly into higher availability, lower maintenance costs, and longer service life. OCP Mechanical's HST Series and HP Series cone crushers are built with robust mechanical designs and advanced hydraulic systems that deliver the same reliability and performance in the most demanding applications. By investing in equipment with a proven mechanical foundation, operators can achieve consistent production and lower operating costs.

Smarter control and digital insight – the new standard in crusher automation

The CH662 and CH442 come equipped with user-friendly ACS-c 5 ASRi automation for crusher control, including proven automated setting regulation and assigning role-based permissions for system monitoring, troubleshooting and performance optimization. Both models are also fully connectable to SAM digital services, providing real time and aggregated insights into performance, wear, alarms and fleet status. This supports quicker troubleshooting, stronger planning and more informed decision making throughout the crushing process. For operators, this level of connectivity and predictive insight translates directly into reduced unplanned downtime, lower maintenance costs, and improved asset utilisation. While major manufacturers continue to develop advanced digital platforms, OCP Mechanical offers automation and monitoring options for our HST Series and HP Series cone crushers, including load-sensing controls and remote diagnostic capabilities that enable operators to monitor performance and identify potential issues before they cause downtime.

Longer wear life components – reducing operating costs and environmental impact

The new cone crushers feature longer wear life components that contribute to reduced operating costs and more sustainable performance. Extended wear part life means fewer replacements, less downtime, and lower maintenance costs over the life of the equipment. For operators in remote locations or those with limited maintenance resources, this reliability advantage is particularly valuable. The combination of a compact footprint, longer wear life components, and efficient operation delivers a lower total cost of ownership. At OCP Mechanical, our HST Series and HP Series cone crushers are built with durable, high-quality wear components, and our after-sales support ensures that genuine replacement parts are available when needed. By choosing equipment with extended wear life, operators can reduce maintenance frequency and keep their plants running at peak productivity. Prices are for reference only and are subject to change based on configuration and market conditions.

Sample CH442/CH662 feature summary (For reference only)

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 reliable cone crusher solutions

With over 40 years of manufacturing experience, OCP Mechanical combines engineering excellence with a deep understanding of the global quarrying, mining, and aggregate sectors. We are a factory-direct supplier, meaning you avoid the markups charged by dealers and intermediaries. Our comprehensive range of crushing equipment – including HST Series and HP Series cone crushers – is built with high-quality components and is 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 cone crusher technology for faster maintenance and smarter operation

The new generation of cone crushers with backing compound-free design, strengthened mechanical structures, and intelligent automation reflects a clear industry direction toward faster maintenance, greater reliability, and smarter control. For quarry operators and aggregate producers, investing in modern cone crusher technology is essential for reducing downtime, lowering operating costs, and improving product quality. OCP Mechanical offers reliable cone crusher solutions that meet the needs of modern operators, 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 find the right cone crusher solution for your operation.