Cast Moulds
An internal foundry, exclusively dedicated to rotational moulds casting, assures the realization of moulds without porosities or superficial defects with various surface finishing typologies.

CNC Moulds
Thanks to high-speed 5 axis milling machines, we realize high-quality CNC moulds in a very short time.

Easy Mould
Ideal for prototype pieces or for pieces without aesthetical requirements.
1) No model is realized (this phase is bypassed by a special foundry process).
2) Flash and profile are not particularly looked out.
3) Surface finishing completely shot peened or sand blasted.
4) No frame on the mould; closure with clamps directly on the mould.

Cast & CNC Moulds
Thanks to the highest casting quality which always features Persico moulds, the Rotational Division is able to manufacture cast aluminium moulds then machined by CNC milling.

Steel Moulds
The steel moulds are suitable to medium/big dimensions pieces and allow to obtain a high quality product with a reasonable investment.

Rotational moulds are generally consisting of metal shells, coupled in such a manner to realise a closed container, whose internal the resin is loaded.
The mould has also an external metal structure, called frame, and a closing system.
The mould function consist in defining, through its internal surface, the external surface of the part; furthermore the mould has to conduct the heath for the resin casting, to allow the internal pressure regulation during the heating and the cooling, to be enough stiff not to deform during the process stages, but at the same time its weight has also to be limited


Rotational moulding is a simple process, composed of four basic phases:

1. A pre-weighed amount of powdered or liquid plastic in placed in one half of a thin walled hollow metal mould which is mounted on the arm of a roto-moulding machine. The mould is then closed with clamps or bolts

2. The mould is then biaxial rotated on perpendicular axes and moved into an oven where heat is applied. The metal mould becomes hot and the power/liquid tumbling inside rises in temperature. Hot material sticks to the mould in successive layers to form the part

3. When the material has melted and has been consolidated, the mould is moved to a cooling station where forced air, water mist or a combination of both is used to bring the part temperature down to a point below the crystallization or solidification point of the material. Biaxial rotation continues to prevent the material from sagging

4. Once the part is cool, the mould is moved to the unloading station where the part is removed. The mould is then ready to begin the process again.