Efficient and economic operation
High casting quality
Low maintenance requirement
Environmentally friendly operation
The mixing tools rotate continuously during loading with pre-batched material. The large double “S”-shaped mixing ploughs and the high-capacity blenders (one or two depending upon mixer size), which are mounted from above, rotate in opposite directions, while the mixing pan and guide ploughs remain stationary. This combination guarantees fast, highly intensive preparation as well as perfect homogenization of the moulding sand.
Precise amounts of used sand and additives are dosed simultaneously into the mixer through a single opening. Pre-mixing is achieved with immediate radial injection of water through the mixer wall into the material flow, thus eliminating the dry mix stage. This unique mixing technology enables exceptional preparation efficiency with shorter cycle times. If the mixer is equipped with a Sand Controller the water is automatically dosed to give a pre-selected compactability.
The Bond Injection System is an alternative to the addition of bond and sand from the top of the mixer. The batch of additives is first weighed separately in a weigh hopper and then discharged into a pneumatic sender. From here the material is blown into the batch of used sand in the mixer through a flexible hose. This technique enables more flexible location of additive hoppers and reduces the formation of dust and associated fines which are lost to the extraction system.
