Quarrying
Right tools for the job James D. Morrissey and Eureka Stone Quarry use the Sandvik CH660
Cone in clean, modern and productive operation
For almost a century, James D. Morrissey Inc. has helped shape the landscape of Eastern Pennsylvania. Hard work, dedication, experience and honesty have proved to be the building blocks of the company's success which was founded by James D. Morrissey senior over eighty years ago.
Since taking charge in 1981 James D. Morrissey junior has guided the company through some of the largest, and some of the most successful construction projects, to be completed in recent years on the Eastern seaboard of the United States. Today, and after over eighty years in business, James D. Morrissey Inc. is now one of the most successful independent construction and material supply companies in operation today. At the centre of the present operation is the Eureka Stone Quarry; headquartered in Chalfont, Pennsylvania, the Eureka Stone Quarry is a major supplier of high quality aggregate and bituminous products in Eastern Pennsylvania and Southern New Jersey. The stone quarry operation comprises: • 8 hard rock quarries •
7 asphalt plants
• 3 sand and gravel plants • 12 ready mix concrete plants
A key piece of equipment used by the Eureka Stone Quarry is the Sandvik CH660 (formerly the 6800). It is no surprise that a company of the calibre of the Eureka Stone Quarry uses the CH660, as Sandvik cone crushers are of advanced design 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.
The CH660 has proved to be ideal for secondary and tertiary crushing, with the compact and easy to service design making them a perfect choice for mobile installations. The CH660 possesses automatic overload protection, and can be equipped with Sandvik’s revolutionary automatic setting system - ASRi. This system optimises cone crusher efficiency by automatically adapting the crusher to variations in feed conditions. By continuously measuring and compensating for crusher liner wear ASRi allows the user to fully utilise crusher liners, and to schedule 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. The hydraulically adjusted Sandvik cone crushers are characterised by robust design and high performance. A combination of Constant Liner Performance (CLP) crushing chambers and high motor powers give these crushers very high capacity. However, the Sandvik CH660 cone crusher has undergone extensive upgrades which optimises its operations at
36 Solids & Bulk Handling • March 2011
all levels. The enhancements cover the entire crusher: feed hopper, top shell, bottom shell and main shaft/ head center. The top shell has been reinforced to meet the great demands from the quarry and mining customers. Developed in using the latest software, its brand new design offers smoother radiuses to decrease tensions. Furthermore, the spider cap diameter has been increased to protect the spider hub. The feed hopper is bolted with lock nuts, and possesses a reinforced four piece design producing increased stability. The bottom shell has a five arm instead of a three arm design, providing the eccentric hub with a stronger support ensuring overall sturdiness. Improved throughput and optimal productivity are accomplished through an increased breathing tube which allows the free flow of air in and out of the spider bearing, thereby preventing clogging to take place. The spider arms are lifted up creating more room for the material to flow into the chamber, with an optional level indicator also being available for enhanced control of the level in the feed hopper. This radar sensor in K- band technology performs continuous high precision level measurements making it possible to adjust the material level within small variations.
Reduced vibration and noise pollution result due to the CH660 being equipped with Sandvik lightweight polymer linings for wear protection and noise reduction, producing a better working environment and longer wear life. The linings are easy to install and to change. Several standard crushing chambers are available for each model which means the crushers may be easily matched to changes in production through selecting the right crushing chamber and eccentric throw.
The Eureka Stone Quarry currently supplies crushed stone, asphalt and RAP from their state of the art sites, and it is from these that they service their customer base of road builders, developers, asphalt plants and ready mix plants. For more information visit:
www.sandvik.com
Eureka Quarry
www.solidsandbulk.co.uk
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56