HOME > Melt Quality Control > NAP-01

for automatic polishing of test pieces and image analysis of shperoidal grashphite /


NAP-01 automatically tells you the nodularity of your cast iron melt within 5 to 6 minutes after receiving a test piece cast by pouring your melt in a proprietary shell mold cup.

Features of NAP-01

In-line installation

Because of its dry system, NAP-01 can be installed in a production line. Because of its automatic system, personal bias is avoided both in the polishing step and the structural analysis step. Further, analysis result is obtained within a few minutes and hence, can be immediately fed back to the melting operation.

Full automatic operation

All the processes from polishing to nodularity determination are done automatically, except the initial test piece casting.

In-line determination

Nodularity can be determined within 6 minutes at the minimum, and hence, quality judgment is done while the product is still in the production line.

Comparison with the conventional method

  NAP-01 ]—ˆ‚Μ•ϋ–@
Polishing dry wet
Installation in-line laboratory
Time for judgment 6 minutes about one day
Polish quality complete polish for imaging operator dependent
Data source averaged from 10 views for one TP operator dependent
Record data is stored test piece is stored
Personal bias none unavoidable

Possible big cost cut by NAP-01

On each process step

automatic polishing

automatic polishing


I was not possible in conventional wet, can be installed in the field.

Quick polishing

The dry process, in stead of the conventional wet process, enabled in-line installation.

Reliable polish quality

Polishing quality is high and the time is quick (5 minute - ), making in-line judgment of the product possible. B

Cross section test piece was polished
Cross section test piece was polished. Analysis precision is
improved by using the special consumables
Multiple TP’s can be set by option.


Does not require polishing by workers.

Unnecessary work polishing workers.There is no injury or damage caused by polishing.Improve the safety of the work environment. There is no need to place a worker polishing.

No personal bias

Heterogeneity of the speculum is eliminated by automation.

Customization of the polishing process can be

Setting of the polishing process can be 98Ch.

Polishing time can be set

You can set the minimum 5 minutes. If you set a long time, of course, to further improve the precision polishing.

Built-in liquid
crystal display
Rotational speed polishing and polishing time
Pressure and polishing polishing rate
Safety measures
Safety cover Openable cover

Automatic imaging

Optical analogue type

Imaging corresponds to magnification of 100x

Digital image storage

Images can be stored.

Automatic nodularity determination

Ten views are automatically measured, where images can be selected if so desired. Determination is done without depending on the selection, and the fair and reliable result is expected without a need of worrying about personal bias.

No personal bias

Since the measurement set point, there is no difference between the results of human speculum.

Automatic analysis

Digital data storage

The analysis data can be stored.

The analysis data can be stored.

The averaged value from 10 views is displayed. A precise value is obtained, because analysis is made irrespective of the selection of views.
Because of the automatic system, operation time and results are person-independent.

analysis image