Desoutter Pneumatic Fastening Tools: How Pneumatics Really Work and What are They Used For?January 21st, 2019
After a quick look at a datasheet, even the most inept engineer can write a halfway decent article about pneumatic fastener tools. To polish the article and imbue it with authority, diligent engineering types back up those figures with hard facts. Following this line of reasoning, we’re ditching the tool specifying figures in favour of solid principles.
Reviewing Desoutter Pneumatic Fastener Tools
Shaped like handheld pistols or compact wands, the screwdrivers automate wrist-tiring fastener tightening actions. There can be no repetitive strain injuries when the tool is used, not when it’s employed as directed by an experienced instructor. As one example of this claim, a model SC2-055-A700-S4Q wand shaped screwdriver is wielded by a trained assembly worker. Used on an automotive assembly line or in an aeronautics parts fastening facility, the torque-controlled tool always applies the exact quantity of parts tightening torque, no more no less.
How Does Pneumatics Work?
It’s at this point that a long list of specs would follow. Instead of that approach, we’re going back to basics. Back to the fundamental energy collecting equipment and the mechanisms that control its release, let’s get started. In an isolated plant room, an air compressor uses pistons to charge a large receiver vessel. There are filters and aftercoolers inline, which remove atmospheric contaminants and humidity. Loaded with high-energy pneumatic force, the air is piped to the floor, where hoses route it to a handheld tool. Let’s say the tool in question is a pistol-grip Desoutter SBP043-T1100-S4Q, a model that spins its final drive at 1100RPM. Like every other tool, the compressed air arrives via a hose, so the force-manipulating magic must take place inside the tool housing.
What Happens Inside The Tool Housing?
Well, there’s a number of tightly integrated components stored inside the tool. The housing incorporates axial and radial isolators, which reduce vibration and spur the air forward. It arrives at the head section, where it drives an air-powered motor and thereby a series of complex gears. This is the beating heart of the Desoutter pneumatic fastener range, the assembly that applies finite quantities of torque and integrates innovative features, such as an automatic reverse. Basically, equipped with extremely sensitive feedback porting, Desoutter pneumatic fasteners can’t damage parts surfaces. Thin aeronautics aluminium, for example, will never crack or deform in any way, not when these torque sensing tools are employed.
It’s difficult to imagine a mechanism that could ever convert the dynamic energies of a reciprocating air compressor piston into fractional torque controlling force. With this tool line, though, that’s exactly the benefit, as offered up by a perfectly balanced and perfectly managed integrated air motor, plus all of its feedback imbued components.
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