Railway tightening screw electric wrench, 3500Nm fixed torque wrench

Railway tightening screw electric wrench, 3500Nm fixed torque wrench

This product is produced by Shanghai HenggangRailway tightening screw electric wrenchEquipped with automatic torque control function, it is a mechanized construction tool for assembling threaded parts and bolts.

Railway tightening screw electric wrenchapplication

This sectionRailway tightening screw electric wrenchApplied to the installation of bolted and welded structural bridges, as well as the installation of factories, towers, and chemical, metallurgical, and power generation equipment. Our railway screw tightening electric wrench is also used in large-scale machinery, lifting equipment, and vehicle assembly operations, as well as in situations where there are strict requirements for torque and axial tension of threaded fasteners.

Picture of railway screw tightening electric wrench

Railway tightening screw electric wrenchSelection and adjustment of torque

1. Users can freely choose the corresponding specification of fixed torque electric wrench within the range of 50-3500Nm.
2. There is a "torque adjustment knob" on the control panel. Engraved with 0-10 scale values. The function of the fine adjustment knob is to adjust and compensate between the coarse adjustment and coarse adjustment, in order to control the accuracy of torque. (See next page)
3. Adjustment method: Chinese products come with torque test data cards at the factory for users to refer to during calibration. Users can select a certain scale value based on the required torque, tighten the bolt according to the operation method, and measure the actual torque value of the bolt with a force wrench or other force measuring instrument. If the torque difference is small, fine adjustment can be used to compensate. If the difference is large, coarse adjustment can be adjusted up or down by one gear, and repeated several times to obtain the required torque value.

Railway tightening screw electric wrenchTightening operation of bolts

1. Install the reaction bracket and tighten the screws. Start the host, align the square pin hole with the reaction bracket hole, then install the wrench socket, insert the pin, and fix it with a rubber ring.

2. Adjust the torque knob of the controller to the desired torque value, turn the positive and negative switches of the host to the positive rotation position, and insert the wrench socket onto the hexagonal threaded connector.
3. Press the power switch to activate the wrench. When the force arm of the reaction bracket is firmly attached to the bracket (the fulcrum can be an adjacent bolt or other position that can serve as a fulcrum), the bolt begins to tighten. When the bolt torque reaches the predetermined torque, the wrench automatically stops, the tightening is completed, the power switch is released, and the next bolt tightening work is carried out.
4. After the wrench stops automatically, the elastic deformation force of the reaction bracket causes the bracket arm to automatically detach from the fulcrum and remove the wrench. If the lever arm cannot detach from the pivot point, the forward and reverse switches can be turned, and the power switch wrench can be used to remove it.

Railway tightening screw electric wrenchSpecification Model

Railway tightening screw electric wrenchPrecautions for operation
(Special attention should be paid)
1. Before connecting the power supply, check whether the power supply voltage matches the nameplate of the domestic product and whether there is a grounding device. When the power supply voltage exceeds+10%, voltage stabilization measures should be taken, otherwise it will affect the control accuracy. Poor grounding can easily cause accidents.
2. The environmental temperature for tool use is -10 ℃ -40 ℃, and excessively high or low temperatures can affect control accuracy.
3. The initial torque of the tightened bolt shall not exceed 70% of the rated torque of the tool. After the bolt reaches the rated torque, it shall not be re tightened.
4. When the tool is used to disassemble bolts, its torque must not exceed the rated torque value. Generally, bolts that are not tightened with this wrench or severely corroded should not be disassembled with this wrench to avoid tool damage.
5. When changing the direction of rotation, it must be done after the motor has stopped rotating, and it is strictly prohibited to toggle the positive and negative switches during operation.
6. After the wrench stops automatically, you can release the switch (if the switch is not turned on, the wrench will start automatically after 5 seconds). Wait for 4-5 seconds before starting the wrench, otherwise the wrench cannot start.

Notes on returns and exchanges:

Beyond the return and exchange time, within 7 days from the date of buyer's receipt (subject to the delivery logistics receipt time)

Factors that affect the seller's secondary sales include damaged original packaging that the buyer has already used.

The above situation does not allow returns or exchanges. Please understand!

Due to personal preferences of the buyer, such as not wanting it, not liking it, or the material being a bit rough and not looking good in the picture, it is not a quality issue! If the buyer wants to return the goods within 7 days from the date of receipt, they must bear the round-trip shipping cost. The seller can only confirm the return after receiving the goods and checking that there are no problems. However, if there is any impact on secondary sales, corresponding depreciation fees will be charged.

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Railway tightening screw electric wrench, 3500Nm fixed torque wrench