McCloskey unveils new J4 jaw crusherPublished 20/12, 2022 at 10:38
McCloskey International has unveiled the new J4 jaw crusher for hard rock applications.
Designed to withstand the toughest conditions worldwide, the J4 aims to deliver high production with an innovative jaw chamber design and enhanced material flow. The 1,060mm x 700mm jaw opening accommodates large feed sizes. The material path is enhanced by a 1,064mm x 4,247mm grizzly pan feeder under the hopper that allows for better sizing of material with a variety of mesh options. Options of either a short pan feeder to suit the pre-screen or a double deck grizzly pre-screen are available. The J4 offers a number of decks offering a choice of either a two deck or one and a half deck system, with the two deck delivering an extra product spec over the mid-size product conveyor.
The J4 aims to provide large stockpiling capacity with wide main and side conveyors for enhanced material flow. The angle adjustable 1,200mm wide ‘ToughFlex’ main conveyor boasts a 3,912mm high stockpile with quick release and ground level access, with the belt being easy to maintain and service. ToughFlex is constructed with a special weave of two fabric plies and an additional binder warp (without the need for steel wire) resulting in reduced belt weight. The plies are reinforced to resist puncturing and are protected with heavy duty wear resistant top and bottom covers. At the end of its lifespan, ToughFlex belts can be easily recycled unlike belts reinforced with a metal ply. While a side conveyor remains an option for many jaw crushers in its class, the J4’s integral folding conveyor is standard and has an 650mm adjustable speed belt providing a stockpile height of 3.44m. In addition, the recirculation conveyor can be rotated 90o to be used as a stockpiling conveyor.
McCloskey engineers have designed the J4 to meet the evolving requirements of today’s projects and operations. Despite the position of the J4 as a powerful unit, portability has not been compromised. Mobility on site and between sites continues to be a feature with remote control tracks to easily move and position the crusher and maximise the efficiency of any project site.
As with all McCloskey equipment, safety is paramount, with the J4 being equipped with a number of features to ensure the workplace and the operator are secure. Engine safety shutdown systems, start up alarms, full safety guarding, external maintenance access and a tag out capability on the isolator are all designed to contribute to the safe operation and maintenance of the equipment. Ground level access also promotes safety, and allows for quick service and maintenance, reducing downtime for the operation.
“The J4 continues the momentum for our jaw crushing product range, as we continue to develop new products that meet the evolving needs of our customers across industries,” said Toni Laaksonen, senior vice president, McCloskey International.