Maintaining the life and quality of your mechanical
connections requires careful selection of the appropriate hydraulic bolt
tensioner. These are important tools for checking bolt tension, stopping the
leak and improve general machine efficiency. When choosing a hydraulic
tensioner, Consider factors such as use, bolt size and the specific needs of
your project. Start by evaluating the nature of your application. Different
projects require different approaches to surface tension. Whether you work with
pipes, machinery or structural components. Understanding the specific needs of
your job is the first step in selecting the right hydraulic tensioner. Consider
the size of the bolts you are working with hydraulic tensioners come in many sizes to accommodate different bolt
sizes. Matching the tensioner to the bolt size ensures optimum performance and
prevents excessive pulling force or too low pulling force.
What Is A Bolt
Tensioner?
A bolt tensioner is like a ring jack installed on a
bolt and nut with the help of hydraulic power from the tension pump. The
biggest advantage of bolt tensioning is that multiple bolts can be attached and
disassembled simultaneously. The distributed force will be the same. It is a
safe tool. It's efficient, fast and the best way to fasten and disassemble
bolts to meet a variety of requirements. In general, a tensioner is also called
a bolt tensioner, hydraulic tensioner, bolt stretcher, etc.
Working Process:
A hydraulic nut tightened is like a jack and holds
bolts and nuts. The jack pushes on the bolt connection and pulls on the bolt
end. The bolt diameter must be at least one length to accommodate the bolt
tension tool. This is because the force generated by the jack acts directly on
the end of the bolt. The bolt shaft, therefore, experiences tension equal to
the load exerted by the jack. In the case of jack tension the nut can be turned
using zero torque until it is tightened. Then, the load applied by the jack is
relaxed and will remain in the bolt shaft for a high percentage of the bolt
length and diameter. To be aware of pre-tightening or disassembly of bolts.
Characteristics
and Differences of Tension Devices:
In general, there are four main types of jack bolt
tensioners: general purpose type, replaceable tension head type, single-step
reset type and two-step reset type. The working pressure of tensioning of these
four axes is 150Mpa.
·
Simple type,
suitable for straightening single-spec bolts, lightweight, high precision.
Small size and compact structure.
·
A replaceable
tension head offers high maneuverability. It can be applied to bolts of various
specifications by changing the tension head.
·
One-step reset
piston auto reset design, suitable for frequent use.
Using the
Tension Tool:
It can be widely used in metallurgical mines, the
petrochemical industry, Shipbuilding, electrical systems, rolling stocks, heavy
machinery, railways, aerospace and other industries, especially in working
environments with serious pollution or limited space. The bolt tensioning equipment stretchers are difficult to replace with other
tools, and it is an ideal equipment for the assembly of large and medium-sized
mechanical products and equipment maintenance.