lithium brushless wrench heavy-duty steel bolts disassembly and assembly electric tools 锂电无刷扳手重型钢结构螺栓拆装电动工具

1. Product Features

1. This lithium battery brushless wrench features a brushless high-magnetic motor and a three-speed torque adjustment mechanism, allowing it to quickly switch between torque levels based on operating conditions, suitable for bolt operations with various torque requirements.
2. It features a built-in reverse auto-stop function that automatically stops the impact output after the bolt is loosened, effectively preventing nuts and sleeves from popping out and enhancing safety during on-site operation.
3. Utilizes a 3/4 inch large-size square output shaft, suitable for heavy-duty sleeves, designed for large-size bolt removal and installation scenarios. The body is equipped with a laser engraving and anti-slip ergonomic handle for stable grip, ideal for long-term continuous handling tasks.
4. Equipped with a 360° circumferential high-lumen shadowless light, featuring a layout of output shafts around the light, it eliminates shadows during backlit areas on construction sites, inside equipment, and in low-light outdoor conditions at night, eliminating the need for additional lighting equipment.
5. 2.1V voltage compatibility with a 4.0Ah large-capacity battery pack; wireless lithium battery design eliminates the need for power cables, making it suitable for on-site assembly and disassembly tasks in steel structures and heavy industrial equipment.
6. The entire machine's transmission components have been reinforced, and the body structure is solid and stable, capable of handling high-intensity removal and tightening tasks with heavy bolts.

2. Product Advantages

1. Compared to traditional brushed impact wrenches, brushless motors eliminate carbon brush wear and consumption, reduce overall machine heat generation during operation, extend the service life of the entire unit, and provide good vibration control during operation.
2. Three-speed torque quick switching allows direct selection of the appropriate setting for bolts of various specifications, eliminating the need for manual control of the trigger pressure and reducing the risk of thread damage due to excessive torque.
3. 3/4" large square output shaft, compatible with heavy-duty thickened sleeves, capable of handling high torque output, providing the hardware foundation for bolt removal and installation in heavy industrial steel structures and large equipment.
4. The reverse stop function reduces the loss of fasteners when disassembling bolts in large quantities, simplifies the on-site operation process, and improves overall operational efficiency.
5. Large-capacity 4.0Ah lithium battery; a single cell can perform extensive heavy impact operations; the battery supports quick disassembly and assembly, allowing spare cells to be swapped in to continue operation, thereby reducing downtime for charging.
6. The circular shadowless lamp illuminates the work area evenly, preventing the handle from blocking the light source. Even in low-light conditions, it is still possible to clearly see the connection point between the bolt and the sleeve.

III. Product Applications

1. Heavyweight structural steel construction: Work related to tightening bolts and disassembling large steel frames and factory building structural frameworks.
2. Construction machinery maintenance: Installation, removal, and maintenance of bolts for construction machinery and large vehicles in the M16–M36 specifications.
3. Major equipment maintenance: repair and removal of bolts on heavy machinery units and large frame equipment in the factory.
4. Infrastructure project scenarios: maintenance of large guardrails, large steel structure billboards, and heavy-duty support bolt assemblies.
5. Heavy Industry Assembly Work: Assembly of heavy components, and assembly of fasteners for large equipment bases.
6. Emergency repair at outdoor construction site: maintenance and disassembly of heavy fasteners on-site.
7. Adapted bolt sizes: M16–M36; it is not recommended to perform continuous overload operations using bolts outside these specifications.

4. Target Audience

1. Engineer machinery repair and heavy vehicle maintenance professionals.
2. Workers involved in the construction of factory structures and heavy infrastructure projects.
3. Personnel responsible for inspection, maintenance, and repair of heavy machinery in the factory.
4. Workers in heavy industry components and large-scale equipment assembly and commissioning.
5. A outsourcing team specialized in on-site installation and maintenance for large-scale projects.
6. Heavy Industry Processing Stores, Equipment Maintenance Service Providers.

5. Usage Instructions

1. Battery installation: Push the fully charged lithium battery pack into the bottom slot of the device, hearing a snap when the latch locks, then ensure the battery is fully seated; to remove the battery, press the side latch and pull it downward to extract the battery.
2. Sleeve assembly: Make sure the machine is powered off and stopped. Use a heavy-duty sleeve compatible with a 3/4 output shaft, insert it fully into the square output shaft, and confirm that the locking nut secures the sleeve without any looseness or movement.
3. Torque setting adjustment: Switch between three torque levels based on bolt specifications and operational requirements. Use the higher setting for tightening large bolts; select the lower torque level when protecting the threads.
4. Turn control: Move the mid-body reversing switch to the left for forward rotation, used for bolt tightening; move it to the right for reverse rotation, used for bolt removal; when the switch is in the middle position, it acts as a safety lock, preventing the trigger from activating the machine.
5. Power-on operation: After confirming all components and settings, pull the trigger. The trigger stroke can be adjusted to control the speed of output; during operation, the surrounding shadowless light turns on synchronously; under reverse disassembly conditions, if the bolts loosen, the device automatically stops and stops output.
6. Task completed: Release the trigger, wait for the output shaft to stop rotating completely, move the direction switch to the middle safety lock position, and remove the sleeve; after completing the task, remove the battery and store it separately.

6. Precautions

1. Wear safety goggles for all business activities. Heavy impact operations may cause metal debris to scatter; avoid exposure to debris to prevent eye damage. It is recommended to wear thick, slip-resistant protective gloves. Do not wear loose clothing or hang any jewelry to prevent getting caught by rotating parts.
2. A suitable heavy-duty thickened sleeve must be used. The sleeve must be replaced immediately if it shows cracks, deformation, or severe wear, to prevent the sleeve from breaking and splashing during operations.
3. During operation of the equipment, hands must not touch the rotating sleeve or the output shaft. Only after the entire machine has completely stopped rotating can the sleeve be replaced or the equipment adjusted.
4. Prohibited to carry out operations beyond the M16–M36 bolt specification range; overloading will cause damage to the motor and transmission structure.
5. Lithium batteries should be kept away from high-temperature sources and open flames. It is prohibited to puncture the battery pack casing; when not in use, remove the batteries and store them in a cool and dry place to prevent water ingress and moisture.
6. Due to prolonged continuous heavy loading, the body shell experiences significant temperature rise. It is necessary to shut down the machine and allow it to cool down to prevent the motor from overheating and being damaged.
7. It is prohibited to use this tool in humid or rainy conditions to avoid electrical leakage risks.
8. The equipment is stored in a location inaccessible to children; children are strictly prohibited from operating this tool.
9. During operation, the sleeve slipped off, the fuselage made an abnormal noise, and shaking increased significantly. The machine must be stopped immediately and powered off. It can only be used again after troubleshooting and repair are completed.