1. Balanced Force and Deformation: Pressure is applied from four symmetrical points circumferentially, ensuring uniform filling of the terminal metal into the wire core gap. The wire core experiences consistent force and is less prone to breakage; compared to 2-point crimping, it offers stronger resistance to vibration and loosening, and is suitable for small-volume, thick-walled terminal structures such as aviation connectors.
Excellent Mechanical and Electrical Performance
2. Pull-out Force: Plastic deformation creates a "four-point interlocking" structure, enhancing mechanical connection strength and meeting industry tensile strength standards (usually ≥ 80% of the wire's rated tensile strength).
3. Conductivity: Large and stable contact area, low contact resistance (generally ≤ 5mΩ), reducing the risk of overheating, suitable for signal and low-to-medium voltage power supply applications.
Practical Considerations
Crimping Height: Set according to terminal specifications and wire diameter to ensure that pull-out force and contact resistance meet standards.
Wire Core Preparation: Stripping length matches the terminal crimping area, ensuring no broken strands or oxidation, and that multi-strand wires are bundled together.
Die Matching: Use a dedicated 4-point crimping die to avoid terminal deformation or poor crimping.
Quality Inspection: After crimping, perform cross-sectional inspection (no wire core damage, sufficient filling) and tensile strength testing to ensure compliance.
