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How to choose electric hydraulic wrench model and specification
source:Industry News release time:2022-05-14 Article author:yu Popular:Air band saw
There are several universal specifications, such as m36, m42, m48, if not to mention the size of the nut, it is in accordance with the metric and inch bolt to the sleeve specification, m36 is 55 opposite the hexagon nut, m42 is 65, m48 is 75. If the bolt span is too large and the torque span is relatively large, two types of wrenches must be used to torque this bolt.
Bolt torque
Tip: The specification and compressive strength level of the bolt are the main parameters for selecting an electric hydraulic wrench. Different bolts, different torques, the same bolt compressive strength level, different torque, the same bolt compressive strength level, different torques under different working conditions are different. The bolt torque applied in rolling mill equipment and chemical machinery equipment is not the same. General design drawings will give torque dimensions. If not, the corresponding number of rulers will be provided. Such as heavy machinery use standard JB\\u002FT5000.10-200. M36 bolt torque is 1764Nm; M48 bolt torque is 3920Nm; The above three bolts can choose a wrench.
Bolts and nuts indoor space parts
If there is no development trend and indoor space development restrictions, any type of wrench can be used according to the application; the push-type electric hydraulic wrench is more critical to economic development; for example, the exposed external thread after the bolt is screwed for a long time or there is space technology on a bolt More limited, hollow hydraulic wrench can be used; if the distance between nuts is narrow, hollow hydraulic wrench can be used.
Other considerations
1) An electric hydraulic wrench can only handle a number of similar bolts, generally 1-10 sleeve specifications;
2) The manufacturer uses the electric oil pump under the condition that 2 wrenches are configured, and the diagonal application can improve the A rate and the torque;
3) The electric hydraulic wrench must be used by full-time personnel, stored by full-time personnel, and frequently maintained, such as oil change, cleaning, etc.
4) The bolt torque limit design scheme should be based on the standard, and the standard is to meet the basic national conditions of China's economic development.
The price and model specifications of electric hydraulic wrenches vary from one to another.
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