April 1, 2014
Your complete guide to new and updated equipment and supplies in the aggregates industry.
by Therese Dunphy, Editor-in-Chief
For Free Product Information Text INFO to 205-289-3782, or visit aggman.com/info.
As seen at ConExpo
Case Construction Equipment’s 821F and 921F wheel loaders are equipped with a selective catalytic reduction (SCR)-only solution that treats emissions separately with diesel exhaust fluid (DEF) and does not require the engine to recirculate exhaust gas. This, Case says, optimizes combustion and machine performance, lowers engine temperatures, and eliminates maintenance and downtime associated with filter replacement and regeneration. The loader has a 6.7-liter Tier 4 Final-certified engine. The 821F and 921F wheel loaders produce 212 and 241 net peak horsepower, respectively. The smaller unit features buckets ranging from 3.2 to 4.5 cubic yards, while the larger unit is sized for buckets ranging from 3.8 to 4.75 cubic yards. Each machine is said to provide up to a 10-percent increase in fuel economy over the previous E Series models. Additional fuel savings of up to 30 percent can be achieved with a standard engine shutdown feature that allows the operator to limit engine idle time, while an optional efficiency package provides even more fuel savings through features such as a five-speed lockup transmission, axles with auto-locking differential, and advanced system programming.
Case Construction Equipment | www.casece.com
Efficient secondary and tertiary crushing
Metso introduces the Nordberg NP15 impact crusher. Designed for increased safety and performance, the unit is suitable for secondary and tertiary applications. The unit features a steeper feed angle, which increases material penetration into the rotor and makes the discharge curve less sensitive to blow-bar wear and more consistent over time. The crusher accepts feed material up to 15 3/4 inches and can be equipped with a 476-horsepower motor on a single drive. To streamline maintenance, the crusher is designed with only seven different liners, which allows for greater flexibility and lower inventory of stock parts. Finally, the unit has a new two-part rear frame that is said to combine safety with easy, wide access. A removable breaker plate cassette ensures that breaker plate liners can be changed safely, with a spare cassette that can be prepared in advance to further ease and speed up liner changes.
Metso Mining and Construction | www.metso.com
With 402 horsepower performance and a crushing capacity output range of 135 to 545 metric tons per hour, Telsmith’s T400 Cone Crusher boasts the largest-in-class clearing stroke and highest-in-class crushing force. The cone features a large clearing circuit, which is engineered to safely and quickly allow any uncrushable material to pass. With a maximum feed opening of 12 inches, it has a 52-inch diameter head and a 55-inch receiving hopper. The crusher enables the use of a single bowl for all liners over its range of operation. It also features a new and improved patent-pending anti-spin feature that prevents head spin to extend manganese life. To keep owning and operating costs down, a patent-pending concave (bowl liner) retention system achieves retention without the use of hammers or hand tools. The unit also features the largest-in-class, patent-pending hybrid bearings.
Telsmith | www.telsmith.com
Caterpillar announces the new MD5150C Track Drill, the first of the C Series drills, designed to deliver top-of-class power and high airflow for fast, efficient drilling of 4- to 6-inch holes. The unit offers a choice of three different rock drills, patented carousel rod changer, ergonomic cab, and other features that boost productivity and reduce operating costs. Compared to its predecessor, the new drill has 18 percent more power, a compressor that can deliver 33 percent more air volume and 40 percent more air pressure, 19 percent faster tram speed, and 40 percent greater ground clearance. To streamline maintenance (in addition to available on-site service), the unit has only half as many moving parts as competitive drills. An automated lube system eliminates the need to stop the machine for manual greasing every two hours. Setup time is quick due to the carousel rod changer, which holds six rods and accommodates two lengths and multiple diameters of drill steel. The rod changer and feed assembly have seven patents pending.
Cat MD5150 Track Drill Specs
Hole diameter: 4 to 6 inches
Hole depth: 102.5 feet
Compressor: 534 cubic feet per minute
Rock drill: HPR5128 (38 horsepower)
Engine model and power: Cat C11 ACERT @ 1,800 rpm (385 horsepower)
Caterpillar | www.cat.com
Powerscreen rolls out its Warrior 2100 screen with triple-shaft technology. With amplitudes and accelerations of over 5/8 inch and 6 g, respectively, the 16- by 5-foot screen box is said to be prolific at removing and breaking up clay materials. Economy was also top-of-mind in the screen’s design, which lowers fuel consumption through a lower engine running speed of 1,800 rpm and enhanced hydraulics. Available screen media options include bofor grizzly bars, finger modules, punch plate, and new 3D punch plate. A chassis riser and telescopic side conveyor option allow for generous stockpiling capabilities while a long tail conveyor offers the ability to feed most secondary plants. Engine options include a Tier 3 Cat C4.4 ATAAC four-cylinder, 120-horsepower diesel engine or a Tier 4i Cat C4.4 four-cylinder, 131-horsepower diesel engine.
Powerscreen | www.powerscreen.com
Two more dozers join Komatsu America Corp.’s Intelligent Machine Control family, the D37EXi/PXi-23 and D39EXi/PXi-23 crawler dozers. Equipped with fully automatic blade control, both machines can perform not only finish grading, but also rough dozing. Customer selectable dozing modes allow system response to be tailored to the current machine operation for optimized performance, while blade load settings are adjustable between pre-sets to match actual conditions. Add-on machine control systems have been replaced with factory-installed cab top GNSS (global navigation satellite system) antenna, enhanced inertial measuring unit, and stroke-sensing cylinders. As a result, an improvement in combination rough dozing efficiency of up to 9 percent can be achieved. The dozers weigh in at 18,872 to 21,848 pounds, depending on configuration and model. The Tier 4i engines use smart engine technology with operator-specific features bundled into the compact 89 horsepower (D37i-23) and 105 horsepower (D39i-23) packages.
Komatsu America Corp. | www.komatsuamerica.corp