Tecnofirma SpA - Impregnation Plants Roll Dip Method

This method (Piece in Horizontal Axis and in rotation state) gives to the electrical components an high absorption of the resin: on the Winding in Copper and the Core Lamination that is the heart of the piece.

The Technical advantages coming from this method consist mainly in:

Regular and Uniform Resin distribution on the whole winding and this guarantees a better piece balancing , first of all for rotating components (Armatures , Rotors , Polar Wheels , so on)
Resin is excellently retained on the windings , therefore a greater quantity of Resin will remain on surfaces, by giving higher mechanical and thermal properties

Production Lines
a)	Roll Dip

b)	Trickling

c)	Dipping

	•	hot dipping
	•	cold dipping
	•	dip & bake
d)	Spray
	•	powder
	•	solvent-based liquid
	•	water-based liquid

PROS
	•	Excellent Impregnation Quality
	•	The highest filling of the winding in the Slot
	•	Excellent Intra-Lamination covering
	•	Very short process times

CONS
	•	More Expensive Plants
	•	Tooling Maintenance (1-2 times/year)
		After-Works Cleaning