Top 10 Common Faults of Wire Stripping Machine & Quick Troubleshooting

1. Failure to Strip Insulation / Insulation Not Cut Through

Causes: Blunt or worn blades; insufficient cutting depth; hard insulation material

Solutions:

Replace with new blades

Increase stripping depth adjustment

Check for reversed or loose blades

2. Copper Strands Cut / Damaged During Stripping

Causes: Excessive blade depth; overly sharp blades; thin wire gauge

Solutions:

Reduce blade depth

Lightly dull sharp blades

Re-align blades for even clearance

3. Inconsistent Stripping Length (Too Long or Too Short)

Causes: Uneven feeding roller pressure; encoder slippage; wire slipping

Solutions:

Adjust feeding rollers to equal pressure

Clean oil and rubber debris from rollers

Tighten loose encoder mounting

4. Uneven Stripping Length for Multi-Core Wires

Causes: Unaligned inner cores; loose clamping; eccentric blade holder

Solutions:

Straighten and align cores before stripping

Clamp the entire wire bundle firmly

Calibrate horizontal and concentric alignment of the blade holder

5. Wire Not Feeding / No Wire Advancement

Causes: Insufficient feeding roller pressure; overly stiff wire; blocked inlet

Solutions:

Increase pressure on feeding rollers

Clear rubber debris from the blade area

Check for slipping feed motor or belt

6. Insulation Stuck on Copper (Not Removed)

Causes: Short stripping stroke; insufficient blade depth; tough insulation

Solutions:

Increase the stripping retraction stroke

Properly increase blade depth

Reduce stripping speed to avoid pulling

7. Abnormal Noise & Excessive Vibration

Causes: Loose blade holder; worn bearings; loose belt

Solutions:

Tighten screws on blade holder and sliding blocks

Adjust tension of synchronous belts

Apply small amount of lubricant to sliding parts

8. Copper Strands Fraying / Spreading After Stripping

Causes: Incorrect blade angle; insufficient clamping force; loose strand twisting

Solutions:

Adjust blade angle to avoid outward cutting

Firmly grip wire cores before stripping

Use round or flat blades suitable for the wire

9. Display Error / No Display / Machine Fails to Start

Causes: Activated emergency stop; poor power connection; faulty sensor

Solutions:

Reset emergency stop button

Check power cord and plug connections

Clean wire feeding sensor switch

10. Rough Edges, Burrs or Strings on Stripped End

Causes: Chipped blades; excessive speed; aged wire insulation

Solutions:

Replace damaged blades

Reduce stripping speed

Clean rubber residue in blade grooves