On the other hand, the tightening torque is the point at which the bolt is tightened to the desired level. It is affected by factors such as the size and design of the bolt. The breakaway torque is the point at which the bolt starts to loosen. This torque is transferred to the fastener, which is why impact wrenches help loosen large, stubborn bolts. An impact wrench uses a rapidly spinning hammer to generate high levels of torque. It is necessary to understand how an impact wrench works to know the difference between breakaway torque and tightening torque. Breakaway torque vs tightening torque on an impact wrench By using this formula, you can ensure that you apply the correct amount of force when using an impact wrench. Here, T equals the tightening torque in Nm, K equals a constant based on the grade of the bolt being used, D equals the diameter of the bolt in millimeters, and 162 is a conversion factor. Once you get these pieces of information, you can use the following formula to calculate the tightening torque: T= KD^2/162. To calculate the tightening torque, you will need to know the diameter of the bolt and the Recommended Torque Values (RTVs) for the specific grade of the bolt being used. When using an impact wrench, knowing the correct tightening torque is crucial so that you do not overtighten or loosen the fastener. The amount of force is typically measured in Newton meters (Nm) or foot-pounds (ft-lbs). Tightening torque is the amount of force that is required to turn a fastener. What is tightening torque on an impact wrench? For example, if you have a 1/2-inch impact wrench with a 2,000-watt motor and an efficiency of 80%, your breakaway torque would be 1,600 foot-pounds. The resulting number is the breakaway torque in foot pounds. You can then multiply these two numbers by the size of the anvil. To calculate breakaway torque, you need to know the power output of the motor and the efficiency of the transmission. The amount of power a motor can deliver is determined by the anvil’s size and the transmission’s efficiency. The breakaway torque is the maximum amount of torque that the wrench can provide. Conclusion What is breakaway torque on an impact wrench?Īn impact wrench is able to deliver higher torque output to loosen or fasten bolts and nuts.Why is breakaway torque less than tightening torque?.Which torque wrench is best for breakaway torque?.Is breakaway torque the same as tightening torque?.The benefits of using a breaker bar with an impact wrench for greater torque control.How to achieve the desired breakaway or tightening torque on an impact wrench.Breakaway torque vs tightening torque on an impact wrench.What is tightening torque on an impact wrench?.What is breakaway torque on an impact wrench?.Or our superb Diagonal Cutting Pliers and specialist Plumbing Tools. Like our best selling Side Cutter Parallel Pliers - the combination plier reimagined. Each and every one is engineered to last and has been since 1944.ĭiscover our range of premium, British-made tools today. Our pliers have been in action for over 75 years. We see problems and find innovative ways to solve them. Save time and money – this specialist plier makes removing gas meter security shear bolts a cinch. Distance between the two removal dies when jaws are closed is 15 mm.Register your tool to extend this to 2 years. This tool was originally developed for Meter Provida, a major metering logistics partner for the UK energy industry, but is now sold industry wide. Pack of 2 replacement anvils available.ĭesigned to remove security shear bolts on gas meters, this tool is a must-have for professional gas meter engineers.Zinc-plated handles with soft plastic grips for added comfort.Jaws and dies chemically blackened and case hardened to HRC 57 for durability.Multiplies hand force by 5 for less effort when squeezing and twisting the removal dies.
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