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Case Study: Sinoma choose Sandvik to supply aggregate plants

Published by
World Cement,

In 2012 Sinoma invested in two aggregate plants, supplied by Sandvik Construction, in order to boost its aggregate production.

Aggregate production began in February 2012, with the company pushing for production to increase to 5 million tpy. This would mean producing a variety of sizes for use in both cement manufacturing, and for sale to the construction industry. The plan was to construct three aggregate production lines, with two being fully operational and the third being used in response to varying market conditions. In order to achieve these objectives, the designated supplier of the aggregate plants would be required to supply the plant itself, but also aftermarket support, pro-active servicing and plant design. The latter had to be able to deliver the production required and has to deliver low energy consumption, environmental protection, operator training, efficient transportation and stockpiling.

Over the period of a year, Sinoma met with various manufacturers, and, following extensive and intensive research, the final contract for all elements of the new aggregate plants was awarded to Sandvik Construction in China. This resulted in an order being placed for Sandvik to supply all the equipment, plan the processes, and support the equipment for two aggregate production lines. This comprised of two SV1562 Grizzly Feeders, two CJ613 Jaw Crushers, two CI225 Impact Crushers, two SC3062 Circular Vibrating Screens and two SC3063 Circular Vibrating Screens. Now that the plant has been installed and commissioned, Sinoma is able to produce five aggregate products consisting of: 31.5 - 16mm, 16 - 10mm, 10 - 5mm, 5 - 3mm and 3 - 0mm.

Along with providing accurately sized aggregates for the construction industry, Sinoma is also using the materials produced by the plant for its cement manufacturing. With the material being from the same quarry as the cement, the blasted rock is often of a large size, necessitating the use of a primary jaw crusher that would be able to accept a large feed size, while also reducing the fed rock prior to being fed into a secondary crusher.

The CJ613 Jaw Crusher has proved to be the ideal choice. As with all Sandvik jaw crushers the CJ613 is of a single toggle design, with a deep, symmetrical crushing chamber and easy setting adjustment. It has a large feed opening for its size and an ideal nip angle, giving smooth material flow, high reduction efficiency and high capacity. Behind the simple design are many advanced features that ensure easy operation and maintenance, long life and a low cost per ton. The CJ613 has been purpose built for tough quarrying applications due to its heavy-duty design, and built on proven technology to offer the highest possible reliability in relation to price and performance.

Secondary crushing is then provided by the CI225 Impact Crushers, which have proved ideal for producing the next stage with the ideal shape, which has proved to be essential in catering for the demanding requirements of the market.

The material is then sent for screening to produce the finished fraction. Two SC3062 and two SC3063 Circular Vibrating Screens were chosen as they can be used on a variety of screening applications, but are also robust enough to allow the feeding of a more coarse feed material size.

The finished aggregates were then distributed across the area using highly efficient local waterway transport.

Adapted from press release by

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