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CORE powertools
Husqvarna wire sets new standards In 2005, Husqvarna started developing a diamond wire using vacuum brazed technology for high demanding applications such as heavily reinforced concrete and steel cutting and now the technology is ready to hit the market. The main challenge in steel cutting is creating cutting chips in order to be able to finish the cut. Contrary to other conventional technologies the Husqvarna technology allows the use of extremely big diamonds that not only guarantee a smooth cutting process, but also gives customers peace of mind. Vacuum brazed wires are developed specifically for demanding applications like dry and wet cutting in reinforced concrete, and in solid or hollow steel. The vacuum technology enhances durability and performance. Vacuum technology uses active welding, one of the strongest welding methods, making for extra hard bonds and excellent diamond retention. Vacuum brazed wires cut faster and last longer than standard electroplated/sintered wires. They are ideal for both dry and wet cutting. The possible fields of application are numerous, but there is a strong focus on cutting in the offshore and the nuclear industries.
In both cases the reliability of the wire is the main issue. As far as the offshore is concerned, the costs of having a vessel with divers available all the time is huge, and breakage or malfunctioning of the wire has to be avoided at all costs. In the nuclear sector the operation can be more critical. Not only does a breakage require intervention from an operator in a hostile environment, but the clear demand in the nuclear industry has been that the cutting operation has to be performed without any cooling water. Wire without joints is common knowledge in the wire sawing business that the only weak link in the diamond wire is the connection or joint. Regardless of how good the joint has been made,
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SAFE FAST SINGLE PHASE 21 cm CUTTING DEPTH EASY TO USE
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PDi • Issue 5 • Dec 2011 - Jan 2012
it still cannot take the same forces and/or impact that are inherent in the cutting process. Therefore Husqvarna offers on the full cobra range a closed loop or spliced wire. This is a wire without a joint. The wire is continuous hence the weakest link has been eliminated. Husqvarna supplies closed loop wires to the major players around the world in the offshore and nuclear businesses. The range of cobra wire has two types of beads of 10.5 mm and 9.5 mm. Depending on the application different type of wires are offered. The C1000 is the universal cobra wire for heavily reinforced concrete and steel, both dry and wet cutting. With 44 beads/m of 10.5 mm diameter the C1200 is the high demanding application wire for solid and hollow steel structures, both dry and wet cutting. The C950 has 53 beads/m of 10.5 mm diameter and is the general wire, for heavily reinforced concrete and steel, both dry and wet cutting. For higher cutting speed and 40 beads/m of 10.5 mm diameter is the C900 versatile wire, for finishing difficult or making small cuts, for heavily reinforced concrete and steel, both dry and wet cutting.
www.husqvarna.com
New Holer dust shroud Holer Diamond Tools has added the Holer Dust Shroud 180 Premium*** to its line of Floor-Pro Concrete Grinding Equipment. The new Dust Shroud for angle grinders has been designed to give operators full control while hand grinding. The need to make adjustments to fit different cup wheels and diamond segment heights is a thing of the past, thanks to the custom made rubber diaphragm, which automatically adjusts the shroud to the cup grinder body. Edge Grinding is made easy thanks to the
moveable mouth piece, which when opened without tools can grind right up to concrete walls, but still gives the operator 99% dust free productivity. The adjustable air vent allows the operator to adjust the vacuum pressure of the vacuum cleaner, giving the operator full control to ensure dust free grinding, but preventing the shroud from bogging down. Different angle grinder collar sizes are available to suit different makes and models. The Holer Floor-Pro Range now consist of its 300 mm Single Phase 2.2kw Concrete Grinder, Fast Fix Concrete Shoe Grinding Segments, Dust Shrouds for angle grinders and Deluxe Spanner.
www.holer.co.nz