Last updated: September 10, 2026. Product inspection is the last gate before a contaminated or underweight pack reaches a customer — and it is four technologies, not one: metal detection, checkweighing, X-ray and vision. This ranking compares ten machines on what each actually catches.
The core idea of this page: choose the inspection machine by the contaminant and the pack you actually run — a metal detector finds metal, a checkweigher finds under/overfill, an X-ray finds dense foreign bodies. Force a validated test on your product at line speed.
The ten at a glance
| Rank | Machine | Manufacturer | Class | Headline |
|---|---|---|---|---|
| 1 | Mettler-Toledo Tablex-PRO | Mettler-Toledo | Metal detector | <0.3mm |
| 2 | Thermo Fisher APEX 500 Rx | Thermo Fisher | Metal detector | 0.3mm |
| 3 | Ishida DACS-GN | Ishida | Checkweigher | 480 ppm |
| 4 | Loma IQ4 | Loma | Metal detector | IP69K |
| 5 | Anritsu M6-h | Anritsu | Metal detector | Fe 0.25mm |
| 6 | Bizerba CWEmaxx | Bizerba | Checkweigher | 600 ppm |
| 7 | Wipotec HC-A | Wipotec | Checkweigher | 650 pc/min |
| 8 | Sesotec INTUITY | Sesotec | Metal detector | Ø0.79mm |
| 9 | Fortress Phantom | Fortress | Metal detector | 0.8mm Fe |
| 10 | Minebea Flexus | Minebea | Checkweigher | 600 pc/min |
1. Mettler-Toledo Tablex-PRO
Metal detector with sub-0.3mm sensitivity.
Source: Mettler-Toledo
Tablex-PRO detects "Contaminants less than 0.3mm in diameter".
2. Thermo Fisher APEX 500 Rx
Metal detector, 0.3mm sensitivity.
Source: Thermo Fisher
APEX 500 Rx "Detects metal contaminants as small as 0.3 mm".
3. Ishida DACS-GN
Checkweigher, up to 480 ppm.
Source: Ishida
DACS-GN "at higher speeds of up to 480 packs per minute".
4. Loma IQ4
Metal detector, IP69K washdown.
Source: Loma Systems
IQ4 metal detector with IP69K washdown.
5. Anritsu M6-h
Metal detector, Fe 0.25mm / SUS 0.6mm.
Source: Anritsu Infivis
M6-h "Fe sphere 0.25 mm dia. / SUS sphere 0.6 mm dia.".
6. Bizerba CWEmaxx
Checkweigher, up to 600 ppm.
Source: Bizerba
CWEmaxx "weighing up to 600 products per minute".
7. Wipotec HC-A
Checkweigher, up to 650 pc/min.
Source: Wipotec-OCS
HC-A "Output calibrated for up to 650 pc/min".
8. Sesotec INTUITY
Metal detector, Ø0.79mm V2A.
Source: Sesotec
INTUITY "Detection accuracy from Ø 0.79 mm V2A".
9. Fortress Phantom
Metal detector, 0.8mm ferrous / 1.2mm stainless.
Source: Fortress Technology
Phantom "0.8 mm ferrous, 0.8 mm non-ferrous and 1.2 mm stainless steel".
10. Minebea Flexus
Checkweigher, up to 600 pc/min.
Source: Minebea Intec
Flexus checkweigher up to 600 pc/min.
5 questions to ask before you buy
- What contaminant or defect am I actually detecting (metal, underfill, dense foreign body)? Match the technology to the failure.
- What is the measured detection sensitivity and false-reject rate on my product? Ask for a challenged test.
- Does the machine meet my legal metrology (MID/OIML) and washdown (IP) requirements? Confirm for your market.
- How long is a product changeover, demonstrated? Time a real changeover.
- Can you run my product and show me the detection and reject data at line speed? The validated test is the proof.
Last verified: September 10, 2026.
