Hydraulic bolt tensioners and hydraulic torque wrenches are widely used tools in several industries. They apply significant usage in construction, oil and gas production, and power generation tasks that may require certain fasteners' accurate tightness—ensuring the preservation of intact machinery and structures. Even though they both tighten bolts, it works differently and is better for their applications. What matters depends on your project—its accuracy, load, and the kind of assembly you're tightening. Here's a guide to help you decide which tool best fits your application needs.
A hydraulic torque wrench applies rotational force to fasten or loosen a bolt to a measured amount of torque. Hydraulics is the pressure at which it requires force, making hydraulic torquing ideal for very precise torque values. Hydraulic torque wrenches are highly used in the industries of construction, manufacturing, and maintenance. In such operations, the bolts need to be tightened to very accurate specifications.
Accuracy: Hydraulic torque wrenches provide unmatched accuracy in the tightening of bolts to stipulated torque values. This rules out the possibility of over-tightening or under-tightening, which forms a big source of equipment failure.
Versatility: Hydraulic torque wrenches can be applied on large sizes of bolts. Further, these are ideal applications of bolts for repeat or cyclic tightening with the requirement of higher precision.
Ease of Use: Hydraulic torque wrenches are considered easy to use and don't require much effort to operate, which makes them best suited for jobs that require the application of consistent torque.
Hydraulic bolt tensioners work by axially stretching the bolt to build up the required preload without torque force since the friction between the bolt and the nut can be nullified. It proves effective at high loads that demand leveling, for instance, in power generation or oil and gas sectors.
Uniform Loading: Hydraulic bolt tensioners stretch the bolt directly and in this way, the loads are evenly distributed and the relaxation of bolts is reduced.
Friction Factor Removal: Tensioners eliminate the friction factor involved in tightening. In this way, consistency is ensured on all fasteners and hence are applied on high precision processes
Improved Safety: Hydraulic bolt tensioners minimize over-tightening possibilities, leading to damage to the bolts hence causing a breakdown on the secured structures.
Between hydraulic bolt tensioners and hydraulic torque wrenches, your application will determine which one you should opt for.
Hydraulic bolt tensioners are probably your best choice when your application contains high-pressure systems or uniform load distribution across multiple fasteners. They are particularly suited to applications in which conditions that may cause the bolts to relax may result in catastrophic failure.
Hydraulic torque wrenches are ideal if you require the amount of torque applied to each bolt, working on general assembly or maintenance. They are versatile and highly accurate for a wide range of industrial applications.
The hydraulic torque wrench and hydraulic bolt tensioner apply in industries where precision fastening is a must. It all comes down to knowing what your project requires so that you can make an informed decision. An application of torque control would be where the use of a torque wrench is required, whereas bolt tensioners will be superior for a high-load application or environment with even load distribution.