Soldering Robot


Technical Q&A: Soldering Robot

1. Why does solder wire clog or jam? How can it be solved?
2. Why does the soldering tip have a short lifespan or fail to wet (oxidation)?
3. How to resolve solder splashing, solder balls, or spattering?
4. Why do pseudo soldering, weak joints, or empty soldering occur?
5. Why do solder spikes or stringing occur?
6. Why do short circuits occur during soldering?
7. Why does incomplete solder coverage sometimes occur?
8. What is the difference between point soldering and drag soldering?
9. How to correct coordinate offset (misalignment)?
10. How to choose the right soldering machine model from EVERPRECISION?
11. What are the differences between imported brands and domestic brands (like EVERPRECISION)?
12. Why is after-sales service more important than brand when choosing a machine?
13. What upgrades are needed for soldering processes in smart factories?
14. What if the machine commands are too complex to operate?
15. How should I choose solder wire for an automatic soldering machine?


1. Why does solder wire clog or jam? How can it be solved?

A： This is usually related to solder wire quality (uneven flux distribution), excessive bending angle of the solder feed tube, or gear wear. Regularly inspect and clean the feed tube to ensure smooth delivery, and remove residue from gears. It is recommended to use a solder feeding system with an anti-clog detection function.


2. Why does the soldering tip have a short lifespan or fail to wet (oxidation)?

A： The main causes are excessive soldering temperature (>380°C), prolonged idle heating, or flux corrosion. Enable auto-temperature reduction / sleep mode to minimize high-temperature oxidation. Use nitrogen (N₂) protection and regularly maintain the tip with an automatic cleaning brush to preserve plating quality.


3. How to resolve solder splashing, solder balls, or spattering?

A： This occurs when the flux inside the solder wire expands rapidly under heat and bursts. It is recommended to install a wire perforation device that creates a small hole before the wire reaches the tip, allowing flux gases to escape in advance—reducing solder splashing by over 80%.


4. Why do pseudo soldering, weak joints, or empty soldering occur?

A： Common causes include insufficient preheating, small tip contact area, or large thermal mass of the pad. Adjust parameters to increase preheating time and enable secondary solder feeding. Use a tip shape that matches the joint (e.g., hoof tip), and ensure real-time temperature compensation.


5. Why do solder spikes or stringing occur?

A： This is mainly due to excessive tip withdrawal speed or insufficient temperature, preventing proper solder reflow. Choose a machine with adjustable motion speed and real-time temperature compensation to precisely control the withdrawal rhythm and eliminate solder spikes.


6. Why do short circuits occur during soldering?

A：Short circuits are often caused by mismatched tip geometry, leading to solder bridging between joints. Use a machine that supports various tip specifications to match pad size and pitch, effectively preventing bridging from the source.


7. Why does incomplete solder coverage sometimes occur?

A： This is due to oxidation on the pad and poor solder wettability. It is recommended to use a machine with adjustable nitrogen concentration to isolate oxygen, significantly improving wettability and solder coverage.


8. What is the difference between point soldering and drag soldering?

A： Point soldering: Used for individual joints, focusing on precise solder volume.
Drag soldering: Used for dense pin arrays, where the tip moves while feeding solder. Drag soldering is more efficient but prone to bridging. Precise software control of travel speed and solder feed rate is required to ensure smooth soldering on linear components.)


9. How to correct coordinate offset (misalignment)?

A： Offset is usually caused by machine origin shift, fixture loosening, or workpiece tolerance. Use a Mark Point alignment system in the software to correct coordinates, and regularly clean guide rails and recalibrate the machine origin on the hardware side.


10. How to choose the right soldering machine model from EVERPRECISION?

A： Selection depends on production needs:
• Cost-effective → Standard Soldering Robot
• Non-stop material change → Twin Stations Soldering Robot
• Large or dense workpieces → Twin Heads Soldering Robot
• Smart factory integration → Assembly Line Soldering Robot (Gantry-type)

 

11. What are the differences between imported brands and domestic brands (like EVERPRECISION)?

A： Imported brands are mature but have high maintenance costs and expensive spare parts. EVERPRECISION Soldering Robots are Made in Taiwan, with in-house hardware/software technology and local after-sales support—ensuring both precision and supply chain security with better cost performance.

 

12. Why is after-sales service more important than brand when choosing a machine?

A： Imported equipment often requires 2–4 weeks for spare parts delivery. Production downtime losses can far exceed the machine price difference. Local manufacturers can provide on-site service in the shortest possible time.

 

13. What upgrades are needed for soldering processes in smart factories?

A： If the soldering process cannot output production data, it becomes a quality blind spot. Choose machines with data output capabilities so every soldering record can be integrated into MES for true smart manufacturing.

 

14. What if the machine commands are too complex to operate?

A： High operational complexity is a common concern. Machines equipped with an HMI allow for clear parameter settings, enabling operators to quickly get started without specialized backgrounds—significantly reducing the learning curve.

 

15. How should I choose solder wire for an Soldering Robot?

A： Due to fast heating and mechanized feeding, solder wire quality directly affects tip life, flux residue, and spattering frequency. Manual soldering logic does not apply. It is recommended to select solder wire specifically matched to machine parameters to ensure process stability.