Complete Tutorial On Using Cold-press Crimping Pins For Wire Handling: Wire Stripping, Mold Selection, Crimping, And Inspection.
1. Wire Stripping and Tool Selection
Strip the wire insulation to expose exactly 5 mm of conductor. Ensure zero strands are cut or damaged during stripping.
Choose a compatible contact crimper based on the connector type. For high-density setups, a d sub contact crimper provides the correct alignment. Match the wire gauge to the terminal size before insertion.
| Wire Gauge (AWG) | Strip Length (mm) | Terminal Type |
| 22 - 24 | 4.5 | Needle / D-Sub |
| 18 - 20 | 5.0 | Needle / Standard |
| 14 - 16 | 6.0 | Heavy Duty Needle |
2. The Contact Crimping Process
Insert the stripped wire into the barrel until the insulation butts against the terminal shoulder. Place the assembly into the correct die nest of the cold-pressed needle crimping device. Squeeze the handles until the ratchet mechanism releases automatically.
Avoid double-squeezing during contact crimping to prevent over-deformation. The mechanical ratchet ensures uniform pressure for a gas-tight joint.
3. Quality Inspection
Perform three immediate checks after the crimp cycle:
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Visual Check: Verify conductor strands are visible in the terminal inspection hole.
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Insulation Position: Ensure insulation is not trapped inside the crimp barrel.
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Pull Test: Apply a 15-pound linear tug to confirm secure mechanical retention.
