Increasing production capacity with Sandvik’s UJ640E jaw crusher
Colorado Materials, Ltd. is one of the largest privately held quarries in the United States. Established in 1980, the Hunter, Texas quarry provides millions of tons of materials annually to various locations via truck and rail. In addition to the main quarry, Colorado Materials, Ltd. maintains several locations across Texas, providing ease of delivery to many project locations. As a company, they are committed to providing quality crushed limestone and hot mix asphalt with personalized customer service to their clients throughout the state of Texas.
To process their aggregates, Colorado Materials have been operating Sandvik jaw crushers in a stationary application for a number of years and already familiar with the reliability and performance. When a new project came up to process basalt from a mountain in Texas, the obvious choice was made for a Sandvik mobile unit as the best option.
Due to the high capacity requirements and need for a reliable machine, the UJ640E primary tracked jaw crusher was proposed by Sandvik Mobiles’ local distributor in Texas, Crushing Tigers. The biggest in the Sandvik range of portable plant, the UJ640E features a large 1500 x 1100 mm single toggle jaw capable of achieving up to 1000 t/h. The machine is well-proven in hard and abrasive rock applications and seemed the ideal fit for Colorado Materials’ basalt application.
Low operating cost combined with sustainable operation
The UJ640E is electrically powered and offers a low cost-per-ton solution. It comes with an onboard diesel generator & electric plug-in grid supply, so customers can choose the most efficient means to operate. This has environmental benefits reducing not only its fuel consumption but also its carbon footprint and providing cleaner working conditions on site through less operating noise and emissions. In addition, the unit also comes fitted with a dust suppression system as standard to minimize dust emissions and rubber lined impact zones for reduced operating noise.
John Janek, Operations Manager at Colorado Materials, says that they have been impressed with the efficiency of the unit and that the “fuel economy is excellent for a gen-set”. As well as the benefits of fuel economy, as all onboard components are electrically driven. This improves the reliability of the unit and reduces overall maintenance required.
John says he cannot fault the reliability since commissioning the machine. “Reliability has been excellent and production rates are as expected.” They are currently reducing to 150 mm minus with a feed size of 760 mm. During this customer’s process, the production capacity is currently ranging from 400 – 450 t/h. They have been so impressed with the UJ640E that they have decided to move to a Sandvik Mobiles’ secondary stage of crushing, which will mean the jaw can be opened up and capacity substantially increased.
Designed with many features to maximize uptime, the Sandvik UJ640E features an 14 m³ feeder hopper extension to enable faster loading and provide a continuous feed to the Sandvik CJ615 single-toggle jaw, maximizing throughput and efficiency. Although this mighty unit stands at an impressive 7.3 m tall during operation and weighs in at 137.5 tons, it is easily transportable in just two main sections. These sections are individually self-supported for easy assembly on site, resulting in more uptime and higher productivity.
