Hydraulic torque wrenches typically offer accuracy of ☓% and have a high degree of repeatability making them well suited to applications where large bolts are involved and a high degree of accuracy is required.Ī hydraulic torque wrench is significantly quieter, lighter weight and more accurate than pneumatic impact wrenches capable of similar torque output, making it an appealing alternative for many users to the very loud and cumbersome impact wrenches or torque multipliers which were formerly the only viable option for working with very large nuts and bolts until the hydraulic torque wrench was introduced.īolt tensioners are an alternative to hydraulic torque wrenches, but, not as commonly used. Our trained technicians will calibrate or repair heavy duty torque wrenches. We promise to help you obtain the best possible performance from your test and.
#Mac torque wrench repair mac#
Your Mac Tools TWM200A deserves the best care, so choose the experts at Trescal for one-stop calibration services. Some manufacturers utilize a holding pawl design to keep the wrench locked in position prior to each power stroke, others use varying designs, which as in all industries have debatable faults or claimed advantages. Located in Beckley, WV, Angle Repair provides nationwide torque wrench repair. Trescal provides calibration services for the Mac Tools TWM200A Torque Wrench, as well as a variety of other services.
The wrench is adjusted to shut off at bolt tensions that are a minimum of 5% greater than the required preload. In practice, several bolts of the lot to be installed are tightened in a calibrating device that directly reads the tension in the bolt. In the calibrated wrench method the wrench is calibrated or adjusted to shut off when the desired torque is reached.
In 1985, the Bolt Council : Research Council on Structural Connections, aka RCSC, specification permitted the use of the calibrated wrench method of installation, but with a clearer statement of the requirements of the method and its limitations.
The main characteristics of a hydraulic torque wrench which set it apart from other powered wrenches of similar function are that it must generate torque using only hydraulic means it must be self ratcheting, and it must include an accurate method of determining the amount of torque applied.
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