Glass Disc Machine for Nuts Inspection
Vision inspection system for hex, flange, square, weld, dome and nyloc nuts: thread present/absent, dimensions and 360° surface defects at up to 300 PPM.
Vision inspection system for hex, flange, square and weld nuts
The Glass Disc Machine for Nuts Inspection is a machine vision system built to inspect flange nuts, hex nuts, weld nuts, dome nuts, nyloc nuts and square nuts. It checks for surface defects such as head crack, head damage, scratches, ID thread damage, cut marks, dents, thread burr and half thread, together with dimensional irregularities.
With manual and auto loading systems the machine inspects at up to 300 parts per minute, giving detailed dimensional and surface-defect inspection across every nut type in the family.
Multiple cameras positioned around the disc each perform a different inspection: angle, height, half thread, inner diameter, outer diameter, across flat, across corner and thread presence/absence. OCR-OCV reads characters, and absence/presence verification confirms every feature is there.
High-resolution cameras capture the nut from several angles as it passes through the inspection area; when a defect is identified the machine automatically rejects the NOT-OK part, so only OK parts proceed.
Key features
- Manual as well as Auto loading systems.
- Inspection Speed up to 300 PPM.
- Thread Present/ Absent/ Pitch Variation
- Quantity wise separate OK Ejections
- Detailed Dimensional & Surface Defects Inspection
Can inspect
Inspection parameters
Surface defects: Damage, Head Crack, Head Damage, ID Thread Damage, Cut Mark, Scratch Detection, Dent Detection, Thread Burr, Half Thread
Other checks: OCR-OCV, absence/presence verification
Camera stations
| Camera | Position | Operations |
|---|---|---|
| 1 | Top | Across Flat, Across Corner, ID |
| 2 | Side | Side Dimension Inspection / Thickness |
| 3 | Taper | Internal Thread Present / Absent |
| 4 | Top | Top Surface Defects |
| 5 | Bottom | Bottom Surface Defects |
| 6 | Top | Outer 360° Surface Defects |
| 7 | Top | Inner 360° Surface Defects |
Camera configuration is customisable to the defect and size criteria of your part.
Inspection results on screen
Screens from the machine's own software for this part family: the camera view, the measured dimensions overlaid, and the result table with master value, tolerance, measured value and the OK / NOT-OK count.
The parts this configuration inspects, and the defects it catches
From our own catalogue: the Glass Disc machine, sample parts it has inspected, and the defects its cameras flag on them.
Why manufacturers choose this configuration
Chosen for nuts because a dedicated taper camera checks the internal thread while the other stations cover dimensions and 360° surfaces.
Questions buyers ask
Which nuts can it inspect?
Hex nuts, flange nuts, square nuts, weld nuts, dome nuts and nyloc nuts — for dimensional, thread and surface-defect inspection.
What dimensions does it check?
Angle, height, half thread, inner diameter, outer diameter, across flat, across corner and thread presence or absence.
What defects does it detect?
Damage, head crack, head damage, ID thread damage, cut mark, scratch, dent, thread burr and half thread — plus OCR/OCV and absence/presence verification.
Can it check internal threads and pitch variation?
Yes — thread present, thread absent and pitch variation are checked; a dedicated taper camera position handles internal thread present or absent.
Does it inspect 360° surfaces?
Yes — dedicated positions for outer 360° and inner 360° surfaces, plus top and bottom surface defects.
Not sure this configuration fits your part?
Courier sample parts to Bhosari for a free feasibility run: the engineer reports the defects this configuration catches and the speed it holds on your parts. VisiExpert can take the quick questions first.
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