Background
A customer was looking for a PCB depaneling machine to separate PCBA panels.
PCBA Specifications
- Maximum panel size: 380 × 2000 mm
- Maximum panel thickness: 3.2 mm
- Required maximum V-CUT depth: 0.8 mm
- Maximum component height: 36 mm
After adding PCB thickness, the total height reaches approximately 39.2 mm.
Because of this, the customer needed a depaneling machine with:
- Adjustable blade height, or
- Adjustable table/platform height

Main Problems During Depaneling
1. Insufficient Clearance Between Lower Blade and Table
The gap between the lower straight blade and the machine table is too small.
Due to the tall components mounted on the PCBA, the current semi-automatic V-CUT depaneling machine cannot process the board safely.
2. Dense Components and Solder Joints
The PCBA contains densely populated components and solder joints.
During depaneling, improper operation can easily cause:
- Solder cracking
- Component damage
- Dropped components
- PCB stress damage
3. Large Panel Size Makes Operation Difficult
The customer’s PCB panel size is relatively large:
- 380 × 2000 mm
- Thickness up to 3.2 mm
This makes both automatic and semi-automatic depaneling machines more difficult to operate efficiently for each panel.
Types of PCB Depaneling Machines on the Market
Currently, there are three main types of Desktop Mini table PCB depaneling machines:
| # | Off-cuts remover (Off-cuts PCB separator) | V-CUT PCB Separator | V-CUT PCB Separator | V-CUT PCB Separator | Automatic milling cutter curve PCB separator |
| Model | JYDM-1 | JYVM-L460 | JYV-L460 | FS-VC5A | FS-W400 |
| Manual/Auto | Manual | Semi-auto | Auto |
| PCB Cutting Type | Off-cuts remover | V-cut PCB separating | PCB Cutting for Straight line, L-shaped, U-shaped, Circlar arc,circular |
| Cutting PCB size | unlimited | Length: Max 460mm Width: unlimited | Length:0~400/0-600mm Width: unlimited | Width: Max 260mm Length: unlimited | 400*400mm (or big optional) |
| Blade type | T blade, L blade | Liner blade & circular blade | Circular blade | Milling bit(0.8-3.0mm) |
| Cutting board type | PCB & PCBA |
| Air collection | None | Optional for air collection device | Optional for upper or bottom air collection |

Solutions We Tried
We recommended:
- Fully automatic router depaneling machine
- Semi-automatic V-CUT depaneling machine
However, the customer provided the following feedback:
Fully Automatic Router Machine
- Machine size is too large
- Requires too much factory space
- High equipment cost
Semi-Automatic V-CUT Machine
The customer already uses this type of machine.
However, because of:
- Special PCB dimensions
- Tall components
- Dense assembly layout
The depaneling damage rate remained high.

Final Solution Chosen by the Customer
After comparing different depaneling methods, the customer finally selected a:
Manual PCB Depaneling Machine
Their main priority was:
✅ Protecting PCB components
✅ Reducing solder cracking
✅ Lowering depaneling stress
✅ Improving safety for high-profile components
Common PCB Depaneling Problems
Before choosing PCB separator cutting machine and we should be careful following.
1. PCB Structural Damage Problems
| Problem | Description |
| PCB Cracking | Excessive stress during depaneling may crack the PCB substrate or copper traces |
| PCB Delamination | Internal PCB layers separate because of stress or thermal expansion |
| Burrs and Rough Edges | Poor blade alignment or incorrect V-CUT depth causes rough board edges |
| Copper Trace Damage | PCB routing or V-CUT stress may damage nearby copper traces |
2. Equipment & Process Accuracy Problems
| Problem | Description |
| Blade Misalignment | Upper and lower blades are not aligned correctly |
| Cutting Offset | Depaneling path deviates from the V-CUT line |
| Difficult Board Separation | Residual PCB connection is too thick after V-CUT |
| Component Damage | Tall or sensitive components collide with the blade or table |
| Solder Joint Cracking | Mechanical stress damages solder joints during separation |
| Machine Mechanical Failure | Blade wear, sensor issues, or unstable movement affect depaneling quality |
Conclusion
Choosing the right PCB depaneling machine depends heavily on:
- PCB size
- Component height
- Component density
- Required production efficiency
- Stress protection requirements
For this customer, protecting sensitive components was more important than automation speed, which is why the manual depaneling machine became the best option.
What challenges are you facing during PCB depaneling?
Feel free to leave a comment and discuss with us.
I’m Fiona, and I’m always happy to help with SMT and PCB depaneling solutions.