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Selection skills of hydraulic wrenches!hydraulic torque wrench sale
source:Industry News release time:2021-10-23 Article author:Rosit Popular:Air band saw
The installation and disassembly of large-standard bolts of hydraulic wrenches is a relatively important thing. When purchasing a hydraulic wrench, the specification of bolts and the strength level of bolts are the most important parameters for the selection of hydraulic torque wrenches. Hydraulic torque wrenches There are two types of driven hydraulic torque wrenches and hollow hydraulic wrenches. The driven hydraulic torque wrenches are used with standard sleeves. They are universal hydraulic wrenches with a wide range of applications. The hollow hydraulic wrench has a thinner thickness, which is especially suitable for places with relatively small spaces. It is suitable for electric power (nuclear power, wind power, hydropower, thermal power), shipbuilding, metallurgy, transportation, cement, construction, aviation and other fields. Today, the editor will mainly introduce us to the selection and precautions of hydraulic torque wrenches.
Reminder: Bolt specification and bolt strength grade are the most important parameters for hydraulic torque wrench selection. Different bolts have different torques, and the same bolt strength grades have different torques. The same bolt strength grades have different torques under different working conditions. The bolt torques on rolling mill equipment and chemical equipment are different. The general planning drawings will give the torque size. If not, the corresponding specification number will be given. For example, the heavy machinery and equipment adopts the national standard-JB/T5000. 10- In 2007, for example, the torque of the 8 grade M42 bolt is 2744Nm; the torque of the M36 bolt is 1764Nm; the torque of the M48 bolt is 3920Nm; the above three kinds of bolts can choose one type of wrench.
If there is no space constraint, any type of wrench can be used; the driven hydraulic wrench is the most economical; if the screw thread is longer after the bolt is tightened or there is limited space on the bolt, it is best to use a hollow hydraulic wrench; if the distance between the nuts is narrow , Hollow hydraulic wrench can be used.
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