Do You Know How To Determine The Stripping Length Of A Cold-pressed Needle Crimper?
Choosing the exact wire stripping length is critical for securing a reliable electrical connection. Improper wire stripping length may result in exposed wires or poor mechanical connections. When using a cold-pressed needle crimping device, the optimal stripping length equals the depth of the terminal barrel plus 0.5 to 1.0 millimeter. This formula ensures the conductor fully engages without overlapping the insulation.
Precise wire stripping steps
Achieving the perfect crimp requires specific measurements based on the wire gauge and terminal specifications. Technicians must follow exact parameters to maintain industrial safety standards.
Measuring the Contact Barrel
To find the precise stripping length, insert a caliper into the wire barrel of the contact crimper. Measure the internal depth accurately. Adding a tiny clearance allows the wire strands to visible at the inspection hole after using the d sub contact crimper.
Adjusting the Tooling
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Measure the exact terminal barrel depth using a digital caliper.
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Add 0.5 millimeters to the measurement for standard applications.
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Set the mechanical stop on the stripping tool to this calculated value.
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Test the cut on a piece of scrap wire before final contact crimping.
Wire Stripping Specifications Reference
| Wire Gauge (AWG) | Nominal Conductor Diameter (mm) | Recommended Stripping Length (mm) |
|---|---|---|
| 22 | 0.64 | 3.5 – 4.0 |
| 20 | 0.81 | 4.0 – 4.5 |
| 18 | 1.02 | 4.5 – 5.0 |
| 16 | 1.29 | 5.0 – 5.5 |
Testing the Finished Connection
Every finished terminal requires visual verification. Inspect the rear portion of the contact crimping area to ensure no insulation is trapped inside the barrel. A small gap between the insulation and the barrel confirms that the cold-pressed needle crimping device functioned correctly without damaging the conductor core.





