Snap-on Industrial (Kenosha, WI) offers pneumatic torque wrenches for applying torque to fasteners using a dual-speed gearbox and pneumatic technology that controls input air pressure. This design provides a rundown gear with speeds up to 100 RPM for fast rundown of fasteners, and a torque gear with a much slower RPM for control. The wrenches feature a sealed housing to prevent water, dirt, and debris from entering; a variety of reaction arms; and a safety paddle that requires two-handed operation of the tool to keep both hands away from pinch points near the reaction arm.

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    This article first appeared in the April, 2014 issue of Motion Control & Automation Technology Magazine (Vol. 38 No. 4).

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