Your complete guide to new and updated equipment and supplies in the aggregates industry.

By Therese Dunphy, Editor-in-Chief

High-production jaw

The new Terex Cedarapids CRJ3054 jaw plant combines a JS3054 jaw crusher with a high-stroke, 52-inch x 20-foot vibrating grizzly feeder for high production. Plant features include a new hopper design, wedge release jaw dies, hydraulic assist jaw crusher setting, and crusher isolation mount to reduce plant vibration. The tail of the product conveyor lowers for operation, maximizing clearance under the jaw crusher. The conveyor discharge height adjusts to reduce material impact on the receiving conveyor. Options include a rock breaker, folding hopper wings, hydraulic jacks, hydraulic deployed switchgear, and several axle configurations.

Modular conveyor guards

ASGCO says its new Safe-Guard modular conveyor flat guards are pre-engineered to install easily and prevent workers from unauthorized access to areas within the conveyor system. The guard is shipped with complete mounting kits for quick assembly, which allows for drop-in installation anywhere on the conveyor system. The drop pin and wedge clamps hold the guard securely. Various standard and custom sizes are available.

Increased productivity, fuel efficiency

Caterpillar says its new 336E hydraulic excavator, which replaces the 336D, features a more powerful Tier 4 Interim engine that delivers 12 percent more power, 4 percent faster cycle times, and 5 percent more lift capacity than the 336D while improving fuel efficiency by 2 percent. Fuel-saving features include an electric regeneration valve that captures and recycles energy when the boom is lowered, an engine shutdown setting that enables operators to specify how long the machine should idle before shutting down the engine, and the ability to reduce engine speed to idle at the touch of a button. Isochronous speed control maintains constant engine speed regardless of load. The engine exhaust aftertreatment regeneration system ensures the machine works as normal with no operator intervention needed. The new cab is sealed and sound insulated and features ROPS. Joystick consoles are adjustable, and the seat is wider for enhanced operator comfort.

Greater horsepower, production

Hitachi says its new ZX Dash-5 excavators — ZX470LC-5, ZX670LC-5, and ZX870LC-5 — have greater horsepower combined with optimized hydraulics for bigger arm and bucket digging forces, resulting in more material moved per gallon of fuel. The roomier cab offers a larger door with more glass for better visibility to the side, a heated air-suspension high-back seat for excellent support, and a new easy-to-operate multi-function monitor with rotary dial for enhanced diagnostic features. A hydraulically driven reversible fan cleans debris from the radiator screen; the fan runs only when needed, reducing noise, fuel consumption, and operating costs. The new exhaust filter, consisting of a diesel oxidation catalyst/diesel particulate filter, requires no daily attention due to its 4,500-hour service life.

Excellent fuel efficiency

Caterpillar’s new 966K (shown) and 972K wheel loaders feature new designs and engines certified to meet Tier 4 Interim emissions standards. The company says the loaders feature a new operator station, new electro-hydraulic steering with either joystick or steering wheel control, Performance Series buckets, and a more efficient drive train. A new Cat C9.3 ACERT engine powers both machines. At 1,800 rpm, it delivers peak net power of 267 horsepower on the 966K and 288 horsepower on the 972K. The loaders accommodate buckets ranging in size from 3.25 to 13 cubic yards and can be equipped with a Cat Fusion coupler and a variety of work tools.

Recyclable screening media

In response to customer requests and in keeping with its sustainability program, Metso replaced the traditional steel reinforcement on its Trellex LS rubber modular screening media systems with an environmentally friendly composite material that makes it possible to recycle the media. Metso is also implementing a program to provide its customers with a suitable range of recycling services. Each screening media panel of the Metso Trellex LS-Eco is up to 40 percent lighter than standard steel reinforced panels, making handling easier and safer. The composite-reinforced panels are more flexible and are said to reduce the effects of pegging and blinding during screening operations.

Exceptional performance in aggressive applications

TB Wood’s says its Premium Belts have the highest power density of any V-belt and stretch less than standard cross sections, which makes them ideal for use on problem drives requiring high-impact strength and load-carrying power. Premium Banded belts feature a multiple-layer tie band that provides lateral rigidity to prevent belts from turning over or from coming off the drive. Premium Single belts can be used with deep groove sheaves and drives with limited room for “take up,” and can be an “A” section solution for multi-groove A/B sheaves. Premium V-belts are said to handle 1.4 to 2.2 times more horsepower than equivalent sized standard V-belts. A “clutching” non-rubber-surfaced cover allows momentary slippage due to excessive overloads without burning up the belts. Kevlar or Aramid tensile cords yield extraordinary strength, durability, and virtually zero stretch, according to the company.