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We have concrete saw information and concrete saws for sale right here. Find all the resources you need using our ttusted concrete saw guide and directory. We have discount concrete saws as well as cheap concrete saws for sale. Check hereLow-hydrogen types. These basic-coated electrodes, EXX15, EXX16, EXX18, EXX28, and EXX48, are formulated with low moisture-retaining coatings and manufactured to contain low levels of hydrogen. Hydrogen-controlled electrodes minimize risk of hydrogen-induced cold cracking when welding high-tensile steels on restrained structures. Fabricators use these electrodes to reduce or avoid the need for pre- or postweld heat treatment to drive hydrogen from weld metal. Weldmetal diffusible hydrogen content varies from 1 to 16 ml/100 g. Optional designators H16, H8, and H4 set decreasing limits on hydrogen content in deposited weld metal. An optional electrode designator, ''R'', indicates an electrode that is moisture resistant; it will not absorb water in excess of a specified limit after exposure to humidity. Low-hydrogen electrodes should be used in dry condition and may require baking after exposure to the atmosphere. 7. Upgraded tests for brake lining classifications. Trade associations like the SAE are establishing standards to offer closer tolerances on friction characteristics that would be improvements over the standard edge-code markings. One computer model test revealed that an 80,000-lb tractor trailer traveling at 60 MPH would stop at 241 feet with OEM lining and 302 feet with replacement lining even through both had the same edge-code markings.8. Non-asbestos and semi-metallic brake lining have replaced asbestos brake lining to comply with US environmental protection regulations. The track record on the new lining has been good, and no major problems have developed.9. Long stroke brake chambers are now replacing the conventional types. Consider that the Type 30 brake chamber offers 1/2 inch of reserve stroke before the piston bottoms out and braking force is lost. A long-stroke chamber provides three-quarters-inch of reserve stroke. Also, look for visible adjustment indicators to ensure proper brake adjustment. Though light in weight, Airbor magnetic drill has a powerful 1.6-hp air motor and 1,600-lb magnetic holding strength. With its extra rack, stroke length is extended to 10 1/4 in. Annular cutter capacity is up to 2 1/16 in. diam. Geared chuck adapter converts the unit to a standard drill press. The Slugger Air Force pneumatic drill, at 24 lbs, 6 1/4" high, is useful for confined area drilling. The drill''s features include a permanent magnet that turns on or off by air power, a cutter capacity of up to 1 1/16" diameter x 3/4" depth and the ability to use ShortSlugger cutters and frame cutters. These cutters'' geometry allows the operator to drill multi-layered truck frames in a single pass. ©2003 www.concrete-saw.net. All rights reserved. |