Providing high-precision automatic riveting machine solutions for Midea

Published On: January 21, 2026

1. Partner Overview

Customer Name: Midea Group

Industry: Smart Home Appliance Manufacturing (HVAC / White Goods)

Application Products: Inverter Air Conditioner Control Board, Industrial Power Module, Dishwasher Control System

Core Challenge: Solving the stability of high-current connection terminals and PCB board riveting, preventing microcracks in the substrate under high pressure.

2. Project Background and Pain Points

In the production of high-end home appliance motherboards, Midea needs to fix a large number of metal rivet terminals or support pillars to the PCB. Traditional processes face the following problems:

Uneven Pressure: Manual or simple equipment cannot accurately control the riveting pressure. Excessive pressure can easily cause micro-cracks in the PCB, affecting the lifespan of the appliance.
Position Misalignment: Slight deviation of the rivet position can cause jamming during subsequent assembly with the casing or other components, or even short circuits.
Low Efficiency: Traditional riveting requires multiple processes, including manual material placement, positioning, and pressing, which cannot keep up with the pace of Midea's modern SMT/DIP automated production line.

3. Our Solution: Fully Automatic Intelligent Riveting Machine

We customized a servo-controlled intelligent riveting machine for Midea, achieving a digital upgrade of the riveting process:

Servo Precision Pressing: Utilizing a full servo drive system, pressure control accuracy reaches ±1%, allowing real-time adjustment of stroke and pressure according to different PCB materials, completely eliminating the risk of substrate damage.
Dual Vision Positioning System: Equipped with bottom and top CCD cameras, automatically identifying PCB hole positions and rivet features, achieving extremely high alignment accuracy of ±0.02mm.
Automatic Feeding and Inspection: Employing a high-frequency vibratory feeder for automatic feeding and integrating riveting height detection function, automatically rejecting defective products that are not properly riveted.
Quiet Design: Optimizing the mechanical structure to meet Midea's green factory requirements, the noise level of the equipment during high-speed operation is far below industry standards.

4. Implementation Results

After the equipment was put into production in multiple Midea business units (such as household air conditioners and washing machines), it brought significant improvements in technical indicators:

Key Evaluation Indicators	Traditional riveting process	Our automatic riveting machine	Improvement
Efficiency	Single-point production cycle 3.5 - 5.0 seconds	0.8 - 1.2 seconds	Efficiency improvement of over 400%
PCB microcrack rate	0.5% (potential risk)	< 0.001%	Significantly improved long-term product reliability
Repeatability positioning accuracy	±0.15mm	±0.02mm	Ensures smooth back-end assembly
Data traceability	No record	Pressure/displacement curve Full record	Meets Midea's 6-Sigma quality requirements

5. Customer Testimonials

"Midea has always been committed to improving the manufacturing level of core components. The automatic riveting machine provided by your company not only solved our problem of consistency in fixing high-current terminals, but its intelligent pressure feedback system is also an important technical guarantee for us to achieve our commitment to high-quality home appliances."
— Midea Group Manufacturing Engineering Center

6. About Our Riveting Machine Series

We provide riveting solutions in various specifications:

Vertical/Horizontal Riveting Machines: Adaptable to PCBs with different layout requirements.
Multi-head linkage system: Supports simultaneous pressing of multiple rivets, doubling production capacity.
Cross-industry applications: In addition to home appliances, it is widely used in automotive electronics (BMS), photovoltaic inverters, and other fields.