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New product announcements:  03/18/2009
Hydraulic Power Packs: Portable Rotary Hammer: Lower Vibration Bosch rotary hammers now include the new Vibration Control system for reducing operator vibration. The system employs a slightly larger air cushion between the piston and pin to reduce vibration during impact and a redesigned handle with rubber built into the top and bottom to absorb the shock. The new pin design also contributes to faster drilling in concrete. Bosch Power Tools and Accessories; 877-267-2499;
Hydraulic Power Packs: Portable Hydraulic Power Packs: Portable Portable Hydraulic Power Packs from Chicago Pneumatic are available in four compact models. The largest pack is less than 30 in. to a side in length, and all of the packs feature built-in wheels and handles for easy transport. The gas-powered P9 and P13 feature power on demand for less fuel usage. The P18 has a larger engine, while the diesel D10 boast lower vibration. Chicago Pneumatic; 413-493-7336;
Dust suppression: Keep the Air Clear and Moisten Concrete Dust Suppression: Keep the Air Clear and Moisten Concrete The DustBoss DB-45 dust-suppression system sprays a water mist to mitigate the effects of airborne particles and dust on construction sites. The DB-45 also can be employed during the curing of roller-compacted concrete, where it is necessary to keep the concrete cool and moist. A set of brass nozzles allows for control over the size of water droplets and its fan can generate 18,000 cfm of airflow to cover up to 12,000 sq ft. Dust Control Technology ; 800-707-2204;
Concrete Vibrator Backpack: Lightweight Design for Greater Mobility Concrete Vibrator Backpack: Lightweight Design for Greater Mobility The backpack-mounted Right Built Concrete Vibrator is powered by a 2.5-hp Honda engine and has a lightweight steel frame for a total weight of only 24 lb. A rotary throttle design allows for control over the vibrations per minute. The backpack vibrator has extra padding for comfort, and is able to handle all Stone-brand shafts up to 2½ in. Shafts are easily switched out using a quick-connect coupler. Stone Construction Equipment; 800-888-9926;
Asphalt Compactors: Clearer View of the Road Asphalt Compactors: Clearer View of the Road The HD+ 120 and HD+ 140 articulated tandem rollers feature expanded operator platforms for greater visibility. They have operating weights of 13.2 and 15.4 tons respectively, and drum widths of 78 and 84 in. Vibration on each drum can be controlled independently, and they are available in several models, including vibration in both drums, vibration in the front and oscillation in the back, and a high-frequency vibration variant. Wirtgen America Inc.; 615-501-0600;
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Project Leads/Pulse

Gives readers a glimpse of who is planning and constructing some of the largest projects throughout the U.S. Much information for pulse is derived from McGraw-Hill Construction Dodge.

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Information is provided on construction projects in following stages in each issue of ENR: Planning, Contracts/Bids/Proposals and Bid/Proposal Dates.

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