Product Overview

Hot Riveting Plastic Welding Process

Hot riveting is a welding method that selectively heats thermoplastic rivet posts passing through preset holes of the component to be joined. After the rivet post melts, pressure is applied to form the rivet head, and the joint is kept clamped until the molten material cools and solidifies. This creates a secure mechanical bond between the thermoplastic and the mating component.

     Key Advantages:

1. No vibration during processing, fast speed, and high efficiency

2. Simple structure and process, excellent stability

3. Strong bonding strength, impact resistance, and good sealing performance

4. High cost performance

5. No adhesives, solvents, or mechanical fasteners required — energy-saving and eco-friendly

6. Universal equipment design, fast mold change, suitable for flexible production

Products:

• Left & Right Rear Side Trim Panels (6-seater, D-pillar lower trim)

• Left & Right Interior Side Trim Inner Panels (5-seater, left D-pillar lower trim)

• Material: PC+ABS

Huazhuo’s Hot Riveting Welding Automation System is engineered for high-strength and high-consistency assembly of automotive interior and exterior plastic parts.

The system integrates servo-controlled hot riveting, precision thermal control, and automated positioning, making it suitable for a wide range of automotive trim components across different vehicle platforms.

This machine is equipped with two sets of molds, each designed for a different product.
Each mold contains two cavities (left & right parts), significantly improving productivity.
It provides stable, efficient, and defect-free hot riveting performance.

Designed specifically for Tier-1 and Tier-2 automotive suppliers, the system ensures high repeatability, intelligent production, and minimal operator dependency.

Key Advantages

1. Multi-Point Synchronous Hot Riveting

• Riveting positional accuracy up to ±0.1 mm

• 12–48 rivet points per cycle (customizable up to 96)

• Compatible materials: PP, ABS, PC+ABS, TPO, etc.

• Servo-controlled heating curve ensures stable and uniform rivet formation

2. Optimized for Rear Side Trim Applications

Specially developed for:
Left & Right Rear Side Trim Panels (6-seater D-pillar lower trim)
Features include:

• Large-size symmetrical components

• Multiple welding points and height levels

• Synchronous forming of rivet posts with different heights

• Integrated anti-scratch protection and precise locating fixtures

3. Fast Mold Change & High Customization

• Modular machine base, mold change in <15 minutes

• Supports single-station or dual-station production modes

• Fixtures fully customized according to rear side trim structure

4. Industry 4.0 Intelligent Connectivity

• Siemens / Mitsubishi PLC + 10" HMI

• OPC-UA communication supported

• Output data includes:

  • Cycle time analytics

  • Rivet height curves

  • OEE monitoring

  • Predictive maintenance alerts

Application Scenarios

Suitable for the production of a wide range of automotive interior and exterior parts, including:
Instrument panels, trim panels, decorative components, seat parts, garnishes, grilles, brackets, etc.

Beyond automotive applications, hot riveting is also applicable to various electronic and electrical components such as PCB assemblies, meter housings, and more.

Compatible with Tier-1 / Tier-2 suppliers serving brands such as:
Toyota / Ford / GM / Hyundai / Geely / SAIC / Changan
Leapmotor / BYD / Tesla / XPeng etc.

Technical Specifications

Why Choose Huazhuo?

• 20,000 m² in-house R&D and manufacturing facility

• 12+ years of experience in automotive non-standard automation

• Extensive OEM / Tier-1 project delivery records

• Proven equipment, tooling, and process solutions

After-Sales Service

• 1-year quality warranty

• Remote technical support (software + video)

• On-site installation, commissioning & operator training (optional)

• Fast replacement of critical spare parts