VITRIFIED WHEELS

For machines : NC240 - MD540 - AUTO 4X - AUTO 5X - 3P32 - C226 - C222 - A11 - A51 -

Meule Vitrified wheels :
Following norm DIN 69100, the quality of a wheel is given by 5 parameters :
Abrasive
Grain
Hardness
Structure
Binder

Example :

1	2	3	4	5
Abrasive	Grain	Hardness	Structure	Binder
40A	46	K	10	V

Appellation	Abrasive
10A	Corundum regular
20A	Corundum special
30A	Mono crystal
40A	Corundum superior white
50A	Corundum superior pink
60A	Rubina
70A	Corundum bubble
80A	Corundum frit
10C	Carbide of Silicon green
20C	Carbide of Silicon black
41A, 21C, etc	Mixture of abrasives

Grain

Appellation	Grain
Big	6, 8, 10, 12, 14, 16, 20, 24
Middle	30, 36, 46, 60
Thin	80, 100, 120, 150, 180
Very thin	220, 240, 280, 320

Hardness

Appellation	Hardness
Very soft	D, E, F, G
Soft	H, I, J, K
Middle	L, M, N, O
Hard	P, Q, R, S
Very hard	T, U, V, W

Structure

Agglomerant

Appellation	Agglomérant
V	Ceramic
B	bakelite
BF	bakelite, strength fibers
R	rubber

Wheel dressing
The dressing is directly made on the machine without dismantling, thanks to a diamond point or to a scrubbing brush with diamond. It depends on the machine you use.
Difference between one point and multi point

ONE POINT	MULTIPOINT
Use	Use

Sur machines AVYAC

Forme	TYPE	Characteristics	Ref	Use
	One point	M6 – 30x20	T800.000	A11-A12-A13
	One point	60 x 10	T800.003	A51 A – A51 B A51 C
	One point	10 x 25	T800.004	3P32 : remplacé par T800.006
	One point	M6 – 30x20	T800.005	A11-A12-A13
	One point	10 x 25	T800.006	C222 - C226 – 3P32
	Multipoint	12 x 68	T800.001	AUTO 4X – AUTO 5X AVYAMATIC – A300
	Dressing diamond	For CBN wheel – 10x35	T800.011	AUTO 4X – AUTO 5X MD540 – NC240
	Polishing rock	For CBN or Diamond wheels Dimensions 50x25x15050x25x150	T823.000	Every machines

Vitrified wheel AVYAC

Form	image	Characteristics	Ref	Use
		11A 80x50x13 blue 40A60K8VY	T821.000	A11 Mills
		11A 100x50x20 red 40A 80 K8VY	T821.100	3P32 Small HSS drill
		6A 100x50x20 / 80x37 blue 40A 60 J8VY	T821.101	3P32 HSS drill diam 3 to 20
		6A 100x50x20/80x37 red 60A 60/2 J8VY	T821.102	3P32 forets HSS diam 3 to 20
		11A 100x50x20 red 60A 60/2 J8VY	T821.103	3P32 Mills
		6A 100x50x20/80x37 white 40A 54/1 J8VY	T821.104	3P32 HSS drill diam 20 to 32
		6A 150x63x32/132x51 blue 40A 60 K8VY	T821.150	C222-C226-A51 HSS drill diam 2 to 12
		6A 150x63x32/132x51 white 40A 46/60 J8VY	T821.151	A51 HSS drill dia 6 to 40
		6A 150x63x32/130x47 Red 46 J8VY	T821.152	A51 HSS drill diam 40 to 80
		6A 150x63x32/130x47 red 60A 60/2 J8VY	T821.153	C222-C226 HSS drill diam 10 to 26
		6A 150x63x32/130x47 red 60A 54/1 K8VY	T821.154	AVYAMATIC – AUTO 4X AUTO 5X drill diam 6 to 40 mm , 2 rakes (002), 3 rakes (003), cross form (004)
		150x63x32/130x47 red 60A 46 K9VY	T821.155	AVYAMATIC drill diam 40 to 63 mm , 2 rakes (002), 3 rakes (003), cross form (004)
		12A 150x13x20 blue 40A46K6VY	T821.159	A11 Mills
		12A 150x13x20 blue 40A60J8VY	T821.160	A11 Mills
		11A 150x50x32 blue 40A46K8VY	T821.161	A11 Mills
		11A 150x50x32 white 40A60J7V	T821.162	A11 Mills
		1A 150x16x20 4 blue 40A 46 K9VY	T821.163	A11 Mills
		1A 150x16x20 blue 40A60J7V	T821.164	A11 Mills
		6A 150x63x32 /130x47 blue 10C60J7V	T821.167	C222-C226-A51 Carbide drill diam 2 to 26
		6A 150x63x32 /130x47 blue 48A60J7V (30% de corindon fritté)	T821.168	C222-C226-A51 HSS drill diam 2 to 26 Better against use than standard wheel

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