MarkDown

SMT lines today are highly automated.
But when the PCB reaches the DIP (Through-Hole Insertion) stage…
suddenly you see 20 operators inserting components by hand.
Why is SMT already in Industry 4.0, while DIP still relies on manual labor?
After working with EMS manufacturers in 18 countries, we noticed the same pattern everywhere.

The hidden cost of manual DIP
Manual insertion has three invisible killers.

1.Quality instability from labor turnover
Many EMS factories have 40%+ operator turnover.
New workers often apply uneven force when inserting components like:
relays
electrolytic capacitors
transformers
This frequently leads to PCB scrap.

2.Hidden component damage
Manual insertion can cause:
micro cracks in ceramic packages
scratches inside plated-through holes
These defects often appear only after wave soldering, making rework extremely expensive.

3.ESG & traceability pressure
Automotive and medical OEMs increasingly require:
process traceability
insertion force monitoring
production data logging
Manual assembly simply cannot provide this level of traceability.

Why custom grippers are the real solution
Many factories worry that automation may damage delicate components.
At Southern Machinery, our philosophy is simple:
Replace human randomness with engineering certainty.
1.3D-modeled component gripping
For odd-form components such as:
transformers
terminal blocks
large capacitors
we create custom 3D-modeled grippers.
Instead of traditional point contact, our grippers use surface contact, distributing the stress across the component body.
This significantly reduces mechanical damage.

2.Intelligent insertion-force protection
Machines such as the S7020 Odd-Form Inserter use a high-precision servo Z-axis.
If insertion force exceeds a preset threshold (e.g., 5N):
the machine stops within milliseconds.
This is more reliable than even the most experienced operator’s “hand feel”.

3.Vision-based alignment compensation
A vision system automatically compensates for:
PCB deformation
hole position deviation
ensuring every component is inserted exactly at the center of the hole.
No pad scratching.
No misalignment.

ROI example: Manual vs automation
Below is a simplified model from an EMS factory in Mexico.
Production line: DIP assembly for industrial power modules

Total annual cost:
Manual: $264,000
Automation: $53,000
Annual savings:$211,000
Typical ROI payback period: 6–10 months.

Final thought
Automation is not just about buying a machine.
It is about matching process engineering with hardware capability.
If you are evaluating DIP automation for projects similar to Kimball or Tier-1 EMS lines, here is a practical suggestion.
Send me:
• your BOM list
• your PCB layout
We will run a free automation feasibility study and simulate a custom gripper solution for your components.
Our goal is simple:
Make THT insertion as precise as SMT placement.

Call to Action
Comment ‘1’ below to receive an exclusive link to the Southern Machinery THT machine in action!