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The JH-7701-TG is a fully automatic double-end crimping machine with dual-end protection – one end inserts a protective sheath, and the other end applies heat shrink tubing. This unique configuration addresses a common challenge in wire harness manufacturing: different connection points often require different types of protection on each end.
Built on the proven JH-7701 platform, the JH-7701-TG expands capability to include heat shrink tubing application alongside sheath insertion, offering manufacturers maximum flexibility for mixed-protection harnesses.
The machine processes AWG#24 to AWG#12 wire (0.3mm² to 3mm²), crimps 187/250 straight terminals, inserts sheaths, and applies heat shrink tubing – all in one continuous cycle.
Dual-end protection flexibility – Sheath insertion on one end, heat shrink tubing on the other, or both ends with same protection
187/250 straight terminal crimping – Supports standard flag/straight terminals with pull-in-place positioning
AWG#24 to AWG#12 – Wide wire range from 0.3mm² to 3mm²
3.0T crimping force – Robust crimping for thick wire and thick terminals
6 servo motors – Precision control for all critical operations
Versatile vibration disc – Same-type sheaths share the same feeder for quick changeover
High production capacity – Up to 3,000 pieces/hour (crimp only); 1,800-2,300 pieces/hour with dual-end protection
Premium components – HIWIN ball screws and guides, Airtac pneumatics, Leadshine servo motors, Japanese bearings
| Parameter | Specification |
|---|---|
| Model | JH-7701-TG |
| Type | Fully Automatic Double-End Crimping & Dual-End Protection Machine |
| Power Supply | AC 220V 50/60Hz |
| Standard Functions | Wire cutting, stripping, dual-end terminal crimping, sheath insertion (one end), heat shrink tubing application (other end) |
| Production Capacity | Crimp only: 3,000 pcs/hour; Crimp + single-end sheathing: 2,300 pcs/hour; Crimp + dual-end protection: 1,800-2,300 pcs/hour |
| Wire Range | AWG #24 – #12 (0.3mm² – 3mm²) |
| Cutting Length | 60 – 9,999 mm (conveyor belt required for ≥800mm) |
| Cutting Accuracy | ±0.2mm + 0.2% of cutting length |
| Stripping Length | 0 – 15 mm |
| Crimping Force | 3.0T |
| Terminal Types | 187/250 straight terminals (flag terminals without sheath) |
| Sheath Types | Same-type sheaths share vibration disc |
| Heat Shrink Tubing | Applied to one end (programmable) |
| Air Pressure | 0.5 – 0.7 MPa (clean, dry air) |
| Machine Dimensions (L×W×H) | 1150 × 780 × 1860 mm (excluding protrusions) |
| Servo Motors | 6 sets |
| Main Components | HIWIN ball screws & guides, Airtac cylinders & solenoids, Leadshine servo motors, Japanese bearings |
1. Dual-End Protection: Sheath + Heat Shrink Tubing
The JH-7701-TG's defining feature is its ability to apply different types of protection to each end of the wire in one cycle:
| End | Protection Type | Typical Use |
|---|---|---|
| A-End | Sheath insertion (187/250 straight terminals) | Plug-and-play connector protection |
| B-End | Heat shrink tubing (with optional hot air shrinking) | Insulation enhancement, strain relief, sealing |
Or both ends can be configured with the same protection type depending on application requirements.
2. 187/250 Straight Terminal Crimping with Pull-in-Place
The machine crimps 187 and 250 straight terminals (flag terminals) and performs pull-in-place positioning. This ensures each terminal is correctly seated in the sheath or connector without manual adjustment – saving significant labor compared to manual or semi-automatic methods.
3. Versatile Vibration Disc for Sheath Feeding
A single vibration disc handles same-type sheaths, greatly enhancing versatility. For manufacturers producing multiple harness variants with the same sheath type, changeover is quick and tool-free.
4. Flag Terminal Crimping Capability
For applications where sheathing is not required, the machine can crimp flag terminals without the protective sheath – solving the problem of crimping flag terminals cleanly and consistently.
5. 6 Servo Motors for Precision Control
With six servo motors, the JH-7701-TG delivers precise control over:
Wire feeding and cutting
Stripping depth
Crimping force
Sheath insertion positioning
Heat shrink tubing placement
Indexing between stations
6. High Production Capacity
The machine delivers production rates of:
3,000 pieces/hour (crimp only)
2,300 pieces/hour (crimp + single-end sheathing)
1,800-2,300 pieces/hour (crimp + dual-end protection)
Capacity varies inversely with wire length – shorter wires allow faster cycling.
7. Long Wire Processing
With cutting length up to 9,999mm, the JH-7701-TG handles both short jumpers and long cable runs. For lengths of 800mm and longer, an optional conveyor belt is recommended for finished part collection.
8. Premium Component Build
| Component | Brand | Origin |
|---|---|---|
| Ball screws | HIWIN | Taiwan |
| Linear guides | HIWIN | Taiwan |
| Cylinders & solenoids | Airtac | Taiwan |
| Servo motors | Leadshine | China |
| Bearings | Japanese brands | Japan |
This component selection ensures reliability for 24/7 production environments.
| Option | Description | Application |
|---|---|---|
| Cartridge mold and blades | Quick-change tooling for different wire gauges | Fast changeover between production batches |
| Vertical wire feeder | Feeds wire from vertically mounted reels | Factory layouts with space constraints |
| Axial pay-off device | Active wire feeding from reels | Long wire lengths, consistent tension |
| Long wire conveyor belt | Collects finished wires ≥800mm | Prevents wire tangling and damage |
| Pressure management system | Real-time crimp force monitoring | Quality documentation for critical applications |
| Industry | Typical Application | Why JH-7701-TG |
|---|---|---|
| Automotive | Wiring harnesses with sheathed connector on one end, heat shrink on the other for sensor protection | Dual-end protection types match automotive requirements. 187/250 terminals standard. |
| Home Appliances | Internal wiring with plug-in connectors and heat shrink strain relief | Sheath for easy connector mating. Heat shrink for internal wire protection. |
| Industrial Control | Control panel wiring requiring connector on one end, heat shrink sealing on the other | Both protection types needed in harsh industrial environments. |
| Medical Devices | Sensor cables with plug-in connector and heat shrink sealed lead | Clean, consistent heat shrink for medical cable insulation. |
| New Energy | Battery management wiring with connector and heat shrink protection | 3.0T crimping for thick AWG#12 power wires. |
| Feature | JH-7701SH | JH-7701-TG |
|---|---|---|
| End A protection | Sheath | Sheath |
| End B protection | Sheath | Heat shrink tubing |
| Heat shrink station | ✗ | ✓ |
| Application flexibility | Dual-end same protection | Dual-end different protection |
| Best for | Connector on both ends | Connector one end, heat shrink the other |
Q1: What is the main difference between JH-7701SH and JH-7701-TG?
A: The JH-7701SH inserts sheaths on both ends. The JH-7701-TG inserts a sheath on one end and applies heat shrink tubing on the other end – ideal for applications requiring different protection types on each end.
Q2: Can both ends be configured with the same protection?
A: Yes. The machine can be set to apply sheaths on both ends, heat shrink on both ends, or one of each – depending on your production requirements.
Q3: What terminals does the machine support?
A: 187 and 250 straight terminals (flag terminals). The machine crimps these and performs pull-in-place positioning into sheaths.
Q4: Can the machine crimp flag terminals without sheaths?
A: Yes. The JH-7701-TG can crimp flag terminals without protective sheaths when required.
Q5: What is the wire range?
A: AWG#24 to AWG#12 (0.3mm² to 3mm²).
Q6: What is the production capacity?
A: 3,000 pcs/hour for crimp only; 2,300 pcs/hour with single-end sheathing; 1,800-2,300 pcs/hour with dual-end protection.
Q7: What is the crimping force?
A: 3.0 tons.
Q8: What is the cutting length range?
A: 60mm to 9,999mm. For lengths of 800mm and longer, a conveyor belt is recommended.
Q9: What heat shrink tubing sizes can be applied?
A: Please consult JUHAI with your specific tubing specifications for compatibility assessment.
Q10: What is the warranty?
A: 12-month warranty on the complete machine (consumables excluded), with lifetime technical support and free software upgrades.
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