AOI Machines for PCB Assembly
DaoAI makes offline 2D (P1, P1L, P2), inline 2D (P3, P3D), inline 3D (P5, P5D, available for delivery now) and through-hole AOI machines: the A3 checks components before wave soldering, and the A5 and A6 (available for delivery now) inspect the solder joints after it. Every model programs itself from one golden board in 30 seconds to 5 minutes, with no CAD, Gerber, centroid file or component library. All AI runs on-premise on the machine, and sales and engineering support comes from our North American team in Vancouver.
Compare all models
| Model | Type | 2D / 3D | Track | Camera | Resolution | Max board | Height resolution | Programming input | Best for |
|---|---|---|---|---|---|---|---|---|---|
| P1 | Offline | 2D | Manual load | 5 MP | 15 µm/px | 470 × 330 mm | — | One golden board – no CAD | Prototype, NPI and high-mix lines |
| P1L | Offline | 2D | Manual load | 5 MP | 15 µm/px | 680 × 510 mm | — | One golden board – no CAD | Large boards |
| P2 | Offline | 2D | Manual load | 12 MP | 10 µm/px | 470 × 330 mm | — | One golden board – no CAD | High-mix lines needing finer resolution |
| P3 | Inline | 2D | Single track | 26 MP | 10 µm/px | 500 × 600 mm | — | One golden board – no CAD | Inline SMT lines |
| P3D | Inline | 2D | Dual track | 26 MP | 10 µm/px | 500 × 325 mm | — | One golden board – no CAD | Dual-lane inline SMT lines |
| P5 | Inline | 3D | Single track | 21 MP | 10 µm/px | 500 × 600 mm | ≤ 6 µm | One golden board – no CAD | Inline 3D height measurement |
| P5D | Inline | 3D | Dual track | 21 MP | 10 µm/px | 500 × 300 mm | ≤ 6 µm | One golden board – no CAD | Dual-lane inline 3D height measurement |
| A3 | Through-hole (THT) | 2D | Straddles the line | 26 MP | — | 420 × 420 mm | — | One golden board – no CAD | Through-hole (THT) component checks before wave or selective soldering |
| A5 | Through-hole (THT) | 2D | Single lane | 12 MP | 10 µm/px | 510 × 400 mm | — | One golden board – no CAD | Through-hole solder joints after wave soldering, from the solder side |
| A6 | Through-hole (THT) | 2D | Single lane | 12 MP | 10 µm/px | 510 × 400 mm | — | One golden board – no CAD | Through-hole boards after wave soldering, top and bottom in one pass |
Hardware specifications are reference values and may vary by configuration.
Which model fits your line?
- Prototype, NPI and high-mix offline inspectionP1 · P2
- Large boards, offlineP1L
- Inline SMT lines, single or dual laneP3 · P3D
- Inline 3D height measurement: lifted leads, coplanarity, tombstonesP5 · P5D
- Through-hole (THT) component checks before wave or selective solderingA3
- Through-hole solder joints after wave soldering, from the solder sideA5
- Through-hole boards after wave soldering, top and bottom in one passA6
How DaoAI compares
Side-by-side comparisons with other AOI platforms, based on each vendor's published materials.
- Best AOI for High-Mix, Low-Volume PCB Assembly (2026)
- How to Choose an AOI for High-Mix PCB Assembly
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AOI machine questions
Which DaoAI AOI models can be programmed without CAD data?
All of them. Every DaoAI model uses the same golden-board AI auto-programming, so no CAD, Gerber, centroid file or component library is needed.
Is DaoAI's inline 3D AOI available now?
Yes. The P5 (single track) and P5D (dual track) inline 3D AOI machines are available for delivery now.
What's the difference between offline and inline AOI?
Offline AOI sits beside the line and boards are loaded by hand, which suits prototypes, NPI and high-mix work. Inline AOI sits in the SMT line on a conveyor and inspects every board automatically.
Which DaoAI machines inspect through-hole boards before and after wave soldering?
Before wave or selective soldering, the A3 straddles the existing line, checks pin presence and insertion, and looks for missing, wrong, reversed and offset through-hole parts; it does not inspect solder joints. After soldering, the A5 inspects the solder side from below, and the A6 inspects the top and bottom of the board in one pass. The A5 and A6 are available for delivery now.
Does inspection data leave our factory?
No. All AI runs on-premise on the machine, with no cloud connection required, so inspection images and data stay in your plant.
Who supports DaoAI machines in North America?
The DaoAI sales and engineering team in Vancouver, together with authorized partners. See our partner program or contact us below.
How much does a DaoAI AOI cost?
It depends on the model and configuration. Request a quote and we will price the setup that fits your line.
Talk to an AOI engineer
Send us your board and line details and we'll recommend the right model.