• page_banner

JS News

Introduction and Precautions of Electric Hammer Drill Bit Ⅱ

2. Characteristics of Electric Hammer Bit

4) Comprehensive motor protection device: granular hard objects will inevitably enter the machine during use (especially drilling upward for the machine, such as drilling on the wall top). If the motor does not have certain protection, it is very easy to be broken or scratched by hard objects during high-speed rotation, which will eventually lead to motor failure.

5) Forward and reverse rotation function: it can make the electric hammer more widely used. Its implementation form is mainly realized by switching or adjusting the position of carbon brush. Usually, large-scale tools will adjust the position of carbon brush (rotating brush holder). The advantage of this is that it is convenient to operate, effectively inhibit flame to protect the commutator and prolong the service life of the motor

6) Hammer drill dual function.

3. Advantage of Hammer Drill Bit

1) High efficiency, large hole diameter and long drilling depth.

4. Disadvantage of Hammer Drill Bit

1) The vibration is large and has a certain degree of damage to the surrounding structures. The reinforcement in the concrete structure cannot be passed smoothly, and it cannot be too close to the building due to the requirements of the work scope

5. Precautions for Use of Electric Hammer Bit

1) Confirm whether the on-site power supply is consistent with the electric hammer nameplate and whether leakage protector is connected. The drill bit and holder shall be fitted and properly installed.

2) When drilling walls, ceilings and floors, first confirm whether there are buried cables or pipelines. When working at heights, pay full attention to the safety of objects and pedestrians below, and set warning signs if necessary.

3) Confirm whether the switch on the electric hammer is cut off. If the power switch is turned on, the electric tool will rotate immediately when the plug is inserted into the power socket, which may cause personal injury. If the workplace is far away from the power supply and it is necessary to extend the cable, use the extension cable with sufficient capacity and install the qualified extension cable. If the extension cable passes through the pedestrian aisle, it shall be elevated or measures shall be taken to prevent the cable from being crushed and damaged.


Post time: Dec-23-2021