Sandvik Rock Processing has launched its latest generation CH442 and CH662 cone crushers, designed to deliver improved reliability, uptime, automation and maintenance efficiency for mining and quarrying operations in demanding conditions, including across Africa’s crushing environments.

“The new CH442 and CH662 build on that legacy by introducing stronger key components, faster and easier maintenance and intelligent automation that give operators clearer insight and better control of their production,” affirms Sandvik Rock Processing Solutions VP: sales area Africa Tarynn Yatras.

Both crushers are engineered to deliver improved operational stability, higher availability and more efficient maintenance processes. A key innovation is the backing compound-free design, which is said to eliminate the curing time typically required during liner changes - removing up to 24 hours of downtime and allowing maintenance to be completed more quickly.

According to Sandvik Rock Processing business line manager: crushing solutions PC Kruger the removal of backing compounds also improves safety and simplifies service procedures.

“By eliminating the need for backing compounds, liner changes become faster and safer while reducing operator exposure to bonding agents,” he explains. “This approach improves crusher availability while also making routine maintenance easier for site teams.”

The crushers are suited to high-capacity secondary crushing, high-reduction tertiary crushing and pebble crushing applications, allowing operators to adapt the machines to a wide range of mining and aggregate processing environments.

Part of the redesign has been strengthening key components that directly influence uptime and operational reliability. The top shell has been reinforced with approximately 10% additional weight and improved material distribution to increase durability under demanding crushing conditions. This is complemented by a newly engineered main shaft designed to further enhance mechanical stability and long-term performance.

Kruger explains that these improvements are aimed at ensuring the crushers deliver predictable performance in high-duty applications.

“The strengthened top shell and upgraded main shaft improve the overall mechanical robustness of the crusher,” he says. “Together with the redesigned spider bushing, these upgrades help maintain consistent crushing performance while supporting longer service intervals.”

The new spider bushing also incorporates an integrated temperature sensor connected to the crusher’s automation system, enabling operators to monitor operating conditions and detect potential issues earlier.

Both models are equipped with Sandvik’s ACS-c 5 ASRi automation system which enables automated crusher setting regulation and provides role-based access for system monitoring, troubleshooting and performance optimisation.

The machines can also be connected to SAM digital services, Sandvik’s cloud-based platform that provides real-time and aggregated data on crusher performance, wear patterns, alarms and fleet status.

“This level of digital connectivity allows customers to gain deeper insight into crusher performance,” Kruger says. “Operators can monitor equipment condition more effectively, plan maintenance proactively and optimise the crushing process based on real operating data.”

Yatras notes that Sandvik’s Reborn solution allows customers to upgrade an existing Sandvik CH440 or CH660 crusher to the performance level of the new CH442 or CH662 models, while reusing the installed auxiliaries and existing infrastructure. This approach is designed to save time, reduce capital expenditure and extend asset life while still delivering the key benefits of the next-generation crushers.