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Hydraulic wrench selection guide!Air hacksaw company
source:Industry News release time:2021-09-27 Article author:Rosit Popular:Air band saw
How should hydraulic wrenches be selected? This question (Emerson) must be unknown to many people, so let’s study with the editor of Hydraulics today!
1. Confirmation of torque
Refer to the drawing requirements to find out what the torque value of the bolt (composition: head and screw) is. [If you don’t know what the required bolt torque is, please refer to the "bolt and nut maximum torque recommendation table" according to the size of the bolt (nut) , Strength (strength) grade and material quality] to get the corresponding torque value;
2. Considering the position of space (consider)
Due to many factors (limit) on site, please pay attention to the position of the space used when choosing (xuanze) wrench, such as:
In case of the above working conditions, when the drive type cannot work, you can choose (xuanze) hollow hydraulic wrench. The hydraulic wrench transmits power to the working head through the high-pressure oil pipe and the hydraulic pump, which drives the working head to tighten or loosen the nut. The hydraulic pump can be driven by electricity or compressed air. The working head of the hydraulic wrench is mainly composed of three parts, the frame (also called the shell), the oil cylinder and the transmission parts. The output force of the oil cylinder, the piston rod of the oil cylinder and the transmission part form a motion pair. The distance from the center of the oil cylinder to the center of the transmission component is the hydraulic wrench amplification arm. The oil cylinder output multiplied by the arm is the theoretical output torque of the hydraulic wrench. The actual output torque is smaller than the theoretical output torque. Its unique (interpretation: unique, special) is that the wrench can be divided into two parts: the working head part and the power head part. The power of the same model remains unchanged. Within the working range (fàn wéi) of this model, it can be passed ( tōng guò) Replace the working head to realize the disassembly and assembly of bolts of different specifications (composition: head and screw); in addition, a reducing sleeve can be added to the working head to change the size of the opposite side to realize disassembly and assembly of different specifications The selection of the hollow type hydraulic torque wrench is the same as that of the drive type wrench in principle.
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