APS-438 Air-Powered Saw update

May 01, 2015

An air-powered saw that can be used in any position to produce perfectly square cuts on water wall boiler tube panels made from highly alloyed tube up to 4-½" O.D. is available from ESCO Tool.

The ESCO APS-438 air-powered saw features a proprietary abrasive blade that can rapidly cut all types of boiler tube alloys including stainless steels and Inconel with ±116" accuracy and no HAZ (heat affected zone). Capable of cutting in any position, the saw glides effortlessly along the EscoTrack system which attaches simply to boiler tube panels using two weld tabs.

Featuring a 3-hp motor, the ESCO APS-438 air-powered saw has an ergonomic design and mounts on the 5 ft. steel EscoTrack system by a bracket with four grooved steel wheels that takes the weight off of the operator. It uses only 80 CFM 90 psi shop air and has a safety relief valve to prevent running at excessive speeds. Blades come in 10"- and 12"-dia. sizes.

Related Glossary Terms

  • abrasive

    abrasive

    Substance used for grinding, honing, lapping, superfinishing and polishing. Examples include garnet, emery, corundum, silicon carbide, cubic boron nitride and diamond in various grit sizes.

  • alloys

    alloys

    Substances having metallic properties and being composed of two or more chemical elements of which at least one is a metal.

  • relief

    relief

    Space provided behind the cutting edges to prevent rubbing. Sometimes called primary relief. Secondary relief provides additional space behind primary relief. Relief on end teeth is axial relief; relief on side teeth is peripheral relief.

  • sawing machine ( saw)

    sawing machine ( saw)

    Machine designed to use a serrated-tooth blade to cut metal or other material. Comes in a wide variety of styles but takes one of four basic forms: hacksaw (a simple, rugged machine that uses a reciprocating motion to part metal or other material); cold or circular saw (powers a circular blade that cuts structural materials); bandsaw (runs an endless band; the two basic types are cutoff and contour band machines, which cut intricate contours and shapes); and abrasive cutoff saw (similar in appearance to the cold saw, but uses an abrasive disc that rotates at high speeds rather than a blade with serrated teeth).

  • shop air

    shop air

    Pressurized air system that cools the workpiece and tool when machining dry. Also refers to central pneumatic system.

  • stainless steels

    stainless steels

    Stainless steels possess high strength, heat resistance, excellent workability and erosion resistance. Four general classes have been developed to cover a range of mechanical and physical properties for particular applications. The four classes are: the austenitic types of the chromium-nickel-manganese 200 series and the chromium-nickel 300 series; the martensitic types of the chromium, hardenable 400 series; the chromium, nonhardenable 400-series ferritic types; and the precipitation-hardening type of chromium-nickel alloys with additional elements that are hardenable by solution treating and aging.

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