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The decoring machine

The TWISTMASTER 400 decoring machine from Fill combines the highest levels of performance with maximum payload and flexibility in decoring tasks that necessitate no turning of the casting.


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Fill Machine Engineering Rathner Thomas | © Fill
Thomas Rathner Head of Competence Center Foundry Technology
Fill Machine Engineering Wuehrer Anita | © Fill
Anita Wührer Sales Assistance Competence Center Foundry Technology
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The concept

Two extremely powerful eccentric shafts generate torsional oscillation that sets the casting in motion. Enormous accoleration forces pulverize the crushed sand core inside the casting and transport it out of the cast part.

Acceleration levels of over 170 m/sec² with a 400 kg payload guarantee minimum cycle times and the highest levels of cost-effectiveness.

The Fill TWISTMASTER 400 can be operated as a standalone machine with hammers or in combination with several machines and a separate hammering station.

A robust connection interface facilitates the free design of customer-specific clamping fixtures. The widest range of clamping fixtures can be fitted variably for minimum retooling costs. Optionally, very large or several small castings may be decored as required.


  • Maximum decoring output
  • Payloads up to 400 kg (including clamping fixture)
  • Component-specific design of the clamping fixture
  • Simultaneous decoring of several castings possible
  • Robust construction
  • Low investment and operating costs


Customer components

castings (alloys, steel, non-ferrous metals, ...), cylinder heads, engine blocks, chassis parts, wheel rims, intake manifolds, heat exchangers, transformer housings, ...


Max. payload (kg)

400 (clamping fixture with casting)

Max. acceleration (m/sek²)

350 (depending on payload)

ca. 170 (with 400 kg payload)

Max. amplitude (mm)

50 (+/- 25 mm) (depending on payload)

ca. 22 (with 400 kg payload)

Drive motor (kW)

11 AC asynchronous motor

Length / width / height (mm)

approx. 3.000 / 2.770 / 2.730

clamping fixture (standard and customer specific)

sand removal solutions (standard and customer specific)

CORECRACKER hammer module or external hammer stations

customer-specific automation solutions

Specifications subject to change.

Folder Foundry Technology.pdf

Download, 6 MB, PDF

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