Case Study NETCore® – HSI scar

From Production Manager Markus Wellewill, FOUNDRY HEUNISCH | March 12, 2020

Customer opinion

Problem: Due to the large number of risers, the separation of the feeder residues is a very expensive process. In addition, there is the risk of breaking into the casting while knocking off. In the current state, it is necessary to partially remove the risers and the remaining riser attachment is subsequently reworked separately.

Challange: To reduce the work of separation and either reduce or completely avoid riser residues.




HSI scar


EN-GJS 500-7


7.900 kg

Model design

1-hand modell

Power supply technology

2 x ZRF 12 B150 NR40


Integration of NETCore® Technology at a fiber feeder


By using NETCore® technology, the cast part can be produced with less time spent in the cleaning room. This enables the foundry to reduce the processing time by 30 minutes per casting or 98%. The riser residue can be removed by mechanical means. In addition, the risk of rejects due to break-in is eliminated.

Images and videos

NETCore® molds before casting (top box)

NETCore® casting before cleaning process (riser residue knocked off)

NETCore® separating surface feeder residue

Cleaning costs in comparison

The following case study describes the time saved in producing the castings and removing the riser by the cleaning department with and without NETCore® technology.

Without NETCore®
With NETCore®
Without NETCore®
With NETCore®
Knock off feeder
not possible
5 min
Removal from process chain
not applicable
not applicable
Transport to the sawing station
5 min
not applicable
Clamping saw
not applicable
not applicable
30 min
not applicable
Return to process
not applicable
not applicable
Total time
35 min
5 min

Advantages at a glance

Reduced cleaning costs
Less scrap
Knock off up to 450 mm
Significant time savings
Reduced risk of injury

Download case study

Foundry HEUNISCH is a family-run foundry group based in Bad Windsheim.
A hand molding shop in Steinach, Thuringia belongs to this group. In 2018, the NETCore® technology was introduced to us, and after testing, we have adopted it as standard in our process.