With the TAVI.02 NELA offers an extremely powerful inspection system that features 2 glass tables and which allows for a highly precise examination of the parts from all sides. In addition to this, TAVI.02 features an automatic part orientation identification which guarantees an efficient inspection of parts with asymmetrical sides.

Many types of precision parts made of metal or other materials, which are used in the highly sensitive areas of the automobile and aerospace industries, have to meet exceptional quality standards.

The parts are automatically brought into the inspection system by a customized feeder and are placed onto the first glass table. The dimensional exactness, height and flawlessness of the upper and lateral surfaces of the parts is inspected by different sensor units that are always customized to meet each customer's specific requirements. Parts that are classified as "bad" on table 1 are immediately sorted out. All other parts are flipped over and are placed onto the second inspection table, where the other side of the parts as well as the lower lateral surface areas are inspected. 

Since both sides of your parts are inspected directly from above and not through a glass table, TAVI.02 delivers extremely precise inspection results. 

Your advantage with NELA:

NELA Brüder Neumeister distinguishes itself through a solid development and production expertise in the fields of mechanics, automation and image processing.

Sensor Configuration

TAVI.02 Sensor Configuration

TAVI.02 can be equipped with a variety of different sensors, all with the accuracy of ± 1μm:

  • DIMension uses transmitted light in combination with a telecentric lens to inspect the part dimensions
  • TOPside defect detection on the upper face side
  • IN/OUTside multihead sensors for surface inspection on all lateral surfaces
  • HEIGHTinspection measures the exact height of the part with a telecentric lens
  • 3Dconcheck contour measurement
  • HARD/SOFT checks whether the part is hardened through eddy currents



TAVI.02 is suited for a broad range of sintered parts made of different materials, which are typically used in many industries. 

The part sizes that can be inspected in the TAVI.02 system range from 3,0 mm up to 80,0 mm (OD / diagonal).

The measurement accuracy is ± 1 µm and the throughput amounts to up to 36.000 parts per hour. 

The field of application of this optical inspection and sorting system includes sleeves, clams, flanges, magnets, slide bearings, cutting inserts, gear wheels, cam lobes, and other sintered parts.

Technical information at a glance

  • Inspection and sorting system with 2 glass tables
  • Dimensional check and defect inspection on all surfaces (top, bottom, lateral)
  • Equipped with up to 9 customer-specific sensor units
  • Throughput up to 36.000 parts per hour
  • Optimized for part sizes from OD 3mm - 80mm
  • Measuring accuracy from ± 1μm 
  • Sorting of inspected parts into up to 8 sorting channels
  • Robust machine design and use of high-quality technical components
  • Powerful multi-core processors for very high inspection speeds 
  • Closed design for maximum cleanliness inside the inspection system; this is a requirement for many applications in the medical packaging industry
  • Glass table calibration and temperature compensation for maximum measurement accuracy

Geometry measurement

Geometrical measurements on your sintered parts are carried out by high-resolution telecentric camera systems. 

Measurement of dimensions such as height, diameter, wall thickness, distances, depths and angularity of your parts is effected by our DIMension and HEIGHTmeasure sensor units. 

For complex measuring tasks we also supply 3D-scanners. 

Surface inspection

The optical sensors in the TAVI.02 feature several illumination levels that are adjustable. Thanks to the optimized illumination, these sensors detect even the smalles surface defects on your sintered parts. All camera systems used in the sensors are high-resolution and work with gray value differences.

The TOPside sensors allow for a targeted surface defect inspection on the face side of your parts, while the OUT and INside sensors assure a highly precise inspection of the lateral sides. 

All sensors used in our systems have been developed by ourselves and guarantee a very high resolution of all sides of your parts. The sensors detect defects such as cracks, dents, cavities, nicks, chipping, graphite formation, material differentiation, and other typical defects.


NELA offers feeders that have been specifically designed for sintered parts and their individual characteristics. We pay a lot of attention to a careful and damage-free handling of your parts. Depending on the parts' geometry and size we are using vibrating or ascending conveyors, or we provide a solution that is specific to your requirements.

The geometry of your part and the required throughput of the system are two decisive factors for the design of the feeder. These aspects are, therefore, considered from the planning stage throughout the entire project in order to guarantee maximum productivity of the entire system. Additional bunkers are availalbe to enable the system to function autonomously over an extended period of time. 

We develop and manufacture feeders ourselves, however, for specific applications we rely on the expertise of our suppliers who are highly specialized and know about the requirements of the industry.

NELA feeder concepts offer optional functions such as part side detection and foreign parts ejection.  

Sorting and packaging options

The way the parts are sorted or guided out of the inspection system are also depending on the material's characteristics and on your requirements. Sintered parts, for example, are guided by a paddle to the eject conveyor, instead of blowing them out. Our inspection system precisely count the parts, which enables us to provide a continuous ejection of customer-specific batch sizes. 

Depending on your requirements, it is also possible to integrate box changing systems, rotary chargers, tray changers or threading units. Even packaging systems (bag packing) by renowned manufacturers can be added. 

  • TAVI.02 Ansicht mit Sortierung
  • TAVI.02 Gesamtansicht mit Zuführung
  • TAVI.02 Prüfstationen an Teller 1
  • TAVI.02 VisionCheck Oberfläche