The JH-02A is a high-performance Automatic Terminal Crimping Machine designed for efficient, high-quality wire harness production. Below are its main features:
✅ Dual-Head Crimping Capability – As an advanced automatic crimping machine, it simultaneously crimps terminals on both ends of the wire, maximizing productivity.
✅ Integrated Tinning Function – Functions as both a terminal crimping machine and a precision tinning system, applying uniform solder coating to one end in the same cycle.
✅ Precision Engineering – Designed as a reliable Crimping Machine, it ensures consistent crimp quality and repeatability for critical applications.
✅ Flexible Automation – Serves as a complete Connector Assembly Machine solution, handling wire feeding, cutting, stripping, crimping, and tinning in one seamless operation.
✅ User-Friendly Control – Intuitive touchscreen interface allows quick parameter adjustments for different wire sizes and terminal types.
✅ Compact Integrated Design – Combines multiple processing steps into a single footprint, saving valuable production floor space.
✅ Ideal for Diverse Applications – Perfect for automotive, appliance, industrial control, and electronic connector assemblies requiring terminated wires with tinned ends.
At Juhai Machinery, we understand that maintaining consistent production quality requires not only reliable equipment but also the knowledge to quickly resolve any issues that may arise. Below is a professional troubleshooting guide for our JH-02A Fully Automatic Dual-Head Terminal Crimping & Single-Head Tinning Machine, designed to help operators identify and resolve common processing anomalies efficiently.
1. Wire Stripping Anomalies
| Common Issue | Root Cause Analysis | Solution |
| No visible blade mark on insulation | Blade penetration depth too shallow | Increase blade depth value |
| Wire conductor cut or damaged | Blade penetration depth too deep | Decrease blade depth value |
| Wire slips during stripping | Wire clamping mechanism insufficient | Tighten wire clamp adjustment |
| Inconsistent stripping quality | Pneumatic pressure too low | Increase air pressure to recommended range |
2. Tinning Anomalies
| Common Issue | Root Cause Analysis | Solution |
| Poor solder wetting | No flux applied to wire end | Check flux application system and ensure consistent flux coating |
| Insufficient tinning length | Tinning depth positioning incorrect | Adjust tinning depth parameters |
| Uneven solder coating | Wire not properly positioned in solder pot | Verify wire alignment and dwell time settings |
3. Wire Twisting Anomalies
| Common Issue | Root Cause Analysis | Solution |
| Strands not properly twisted | Partial stripping incomplete | Check partial stripping parameters and blade condition |
| Uneven twist length | Partial stripping not (positioned correctly) | Adjust partial stripping length settings |
| Wire slips during twisting | Twisting clamp tension incorrect | Adjust twisting clamp spring tension |
4. Terminal Crimping Anomalies
| Common Issue | Root Cause Analysis | Solution |
| Inconsistent crimp quality | Terminal die not properly calibrated | Verify die installation and perform test crimps; recalibrate as needed |
| Terminal off-center | Crimping position misaligned with terminal center | Adjust left-right crimping position |
| Crimp height too high or low | Crimping depth incorrect | Adjust front-back crimping depth parameters |
| Terminal deformation | Excessive crimping force | Reduce crimping depth and verify die condition |
Preventive Maintenance Tips
To minimize downtime and maintain optimal machine performance:
✅ Daily: Check air pressure, clean work area, verify sensor function
✅ Weekly: Inspect blades for wear, clean solder pot, check wire feed mechanisms
✅ Monthly: Lubricate moving parts, verify all electrical connections, calibrate crimping dies
✅ Per batch change: Verify parameters for new wire/terminal specifications
For optimal performance, always use genuine Juhai parts and follow recommended maintenance schedules.
