How to Correctly Use Bare Terminal Crimping Pliers?

2025-10-15

Today, Yueqing Woma Tools Co., Ltd. will share how to correctly use crimping pliers for bare terminals. Properly using tools in our daily lives can greatly improve work efficiency.


When using crimping pliers, first strip approximately 6-8 mm of insulation from the end of the wire. Then, connect the exposed wire to the bare terminal. Place the bare terminal into the corresponding groove of the crimping pliers and press the pliers handles firmly until they are crimped into place.


Detailed Steps

1. Preparation: First, confirm that the wire size matches the bare terminal. For example, 1.5 mm² wire corresponds to OT1.5-6 terminals. Avoid poor contact caused by terminals that are too large or too small.

2. Check the crimping pliers grooves in advance to ensure they are free of rust or deformation. Different terminal sizes require different jaw positions (usually marked on the pliers, such as "1.5" and "2.5" corresponding to the wire size).

3. When stripping the wire, be careful not to damage the metal core. If any wire is broken, cut off the broken part before inserting it into the terminal to prevent decreased conductivity after crimping.

4. After inserting the wire into the terminal, ensure that the metal core is completely inserted into the crimping area of the terminal, with no protrusion outside the terminal. Ensure that the insulation does not protrude into the crimping area to avoid damage during crimping.

5. Finally, when crimping, apply even pressure with both hands until the handles of the Crimping Pliers for Bare Terminals stop closing (some pliers will make a "click" sound indicating they are in place). When checking, the pulling force should not exceed 5N to avoid excessive strain and damage to the wire core.


Precautions

1. When stripping the wire, keep the blade facing outward to avoid scratching your hands. When crimping, keep your fingers away from the jaws to prevent pinching.

2. Ensure the wire is not energized before operating, especially during repairs. 3. Do not use excessive force when using Crimping Pliers For Bare Terminals. Excessive force will cause metal fatigue and cracking of the terminal, which will reduce conductivity and service life, and even break the internal wire core.


Crimping Pliers for Bare Terminals

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