Masonry Magazine May 2010 Page. 27
endicott.com
Historically, professional contractors expect their rotary and demolition hammers to vibrate heavily - usually stating that the more it vibrates the harder the tool is hitting.
- Eric Bernstein, Director of commercial products, DEWALT
The saw head, which must first be carried to the site and then lifted to put on a track, is less than half the weight of most older units in use today. Lighter and fewer electric cords replace numerous, heavier hydraulic lines. The saw is operated by remote control, putting the operator at a safer distance and optimum position to control the cutting. New, silent core blade technology reduces the noise of the blade. Noise has been identified as a leading cause of fatigue. Another new product line [consists of] the DXR 310 and DXR 250 demolition robots. Like the WS 482 wall saw, these robots are powered with quiet electricity and are remote controlled. The no-emission electrical motor allows for indoor operation. All of these features lead to operator comfort, productivity and safety.
Bernstein: Vibration is a key area that DEWALT has focused on for rotary hammers. Historically, professional contractors expect their rotary and demolition hammers to vibrate heavily - usually stating that the more it vibrates the harder the tool is hitting. Many users complain that the vibration causes early fatigue and tingling in their hands. To address these concerns, DEWALT has applied SHOCKS Active Vibration Control to every range of hammers in its line, including 1-inch SDS Hammers, Cordless SDS Hammers, SDS Max Hammers, Chipping Hammers, Demolition Hammers, and the Breaker Hammer. SHOCKS Active Vibration Control takes more than half of the vibration out of the tool, leading to a more comfortable drilling and demolition experience for the operator. DEWALT has the widest range of low-vibrating hammers on the market today.
DEWALT has developed several features to better assist the user in increasing their control of the tool. A common issue in drilling with a rotary hammer is being able to maintain control of the product when the bit hits rebar. This tends to make the drill itself spin out of the user's hands. DEWALT recently introduced CTC (Complete Torque Control) on a number of its SDS Max Hammers to help with this issue. CTC utilizes a DEWALT exclusive, two-stage clutch for maximum control in bind-up situations.
DEWALT's CTC has two torque settings: 60 foot-pounds (like most hammers on the market today), and 30 foot-pounds. When the hammer is powered on, the system automatically defaults to the low-torque setting (30 foot-pounds). This setting has enough torque for roughly 90
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READER SERVICE #208 May 2010 ENDICOTT MASONRY 25