Crushing the Production Bottleneck

Aggregates Processing

Crushing the Production Bottleneck

Cone Crusher brings Production boost to Raj Stones in the United Arab Emirates
In order to deal with increasing market requirements for high quality aggregate, a key piece of equipment used by the Raj Stone quarry in the United Arab Emirates is a modern cone crusher possessing a high capacity in relation to size, high reduction efficiency and produce excellent product shape.
(ed. WoMaMarcel - 03/9/2015)
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Sandvik's CH660 cone crusher has proved to be ideal for Raj Stones secondary requirements because of the new design of the intake flow.

Fujairah based Raj Stones in the United Arab Emirates, part of the Raj Group of companies, began operations in 2004, expanded with the acquisition of another quarry named Raj Rocks LLC in 2008, and today possesses a hard won reputation for quality and reliability. In a relatively short period of time the company has developed a highly successful operation which now sees it as the premier supplier of aggregates for the construction industry in the area, now encompassing the supply of aggregates for export in the region, most notably to
Qatar.

The Raj Group itself is one of the leading companies in the Gulf Region, producing in excess of 8 million tons of per annum of high quality gabbro aggregates, as well as rock products for asphalt and ready mix plants. This is accomplished due to the group now owning a vast range of mining and crushing equipment to work alongside its strong logistics division. This enables the group not only to carry out all its quarry operations independently, but also to offer full range of mining services to third parties. In order to ensure smooth operations, and imbue the group with independence, they also possess specializing in drilling and blasting, quarrying, trading and transportation company, Raj Stones LLC.

At the heart of the Raj Stones business is its two quarries: Raj Stones LLC. and Raj Rocks LLC. With total estimated mineral deposits being in the region of 265 million tons, both quarries possess multi-stage, state-of-the-art crushing lines. Together, the quarries are capable of producing 1000 metric tons per hour of crushed aggregates and sands, which is used by the local construction industry, and now, increasingly, for export.


The  quarry of Raj Rocks LLC is one of the biggest aggregate pits in the United Arab Emirates.

In order to deal with increasing market requirements for high quality aggregate, a key piece of equipment used by the Raj Stone quarry is the Sandvik CH660. It is no surprise that a company of the caliber of the Raj Stones uses the CH660, as Sandvik cone crushers are possessing a high capacity in relation to size, high reduction efficiency and produce excellent product shape. With hydraulically adjusted CSS, optional automation, a choice of several different crushing chambers, and many other high performance features, each model is versatile, user friendly and highly productive

Rising Production Capacity

The use of the Sandvik CH660 cone crusher came about as Raj Stones identified a need to modernize their production capabilities, requiring an efficient cone crusher capable of producing aggregate to their exacting specifications at a throughput of between 450-500 mtph. The new cone crusher would replace their existing Sandvik supplied H6800. Following a thorough search of all the premier crusher brands on the market, Raj Stones decided to replace the H6800 with its modern replacement - the Sandvik CH660.

The CH660 has proved to be ideal for Raj Stones secondary requirements because of the new design of the intake flow; this compact and easy to service design makes it the perfect choice for Raj Stones quarrying operation. Such features as its automatic overload protection, and Sandvik’s revolutionary automatic setting system, ASRi, have also played a key part in maximizing production. The latter system optimizes cone crusher efficiency by automatically adapting the crusher to variations in feed conditions, and by continuously measuring and compensating for crusher liner wear the ASRi allows the user to fully utilize crusher liners, thereby scheduling liner replacements in order to coincide with planned maintenance. The ASRi also assists in keeping the crusher choke fed, thus maximizing rock-on-rock crushing, which helps to optimize the quality of the final product

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