Nitolex S.VARIO Grinding Wheels

Manufacturer: Nitolex Corporation
Model: S.VARIO

Features

S. Vario Abrasive
S. Vario wheels use a special abrasive made by surface and heat-treating various grains like alumina ceramic or monocrystal. These wheels achieve strong abrasive retention with minimal bond, provided the bond melts at a higher temperature and combines well with the abrasive. The high grain gripping strength allows for higher porosity, enabling efficient grinding with low heat.
Characteristics
S. Vario wheels offer high-efficiency grinding for all types of steel, resist chip loading, and improve grinding performance with longer dressing intervals.
Applications
Used in SCM material centerless grinding, angular grinding, high-speed steel groove grinding, and stainless steel cylindrical grinding.

Example Applications

Piston Shafts
Centerless grinding infeed

	S. Vario Grinding Wheel	Conventional
Wheels	SV 150 K 8 V 455×80×229	SA 100 L 8 V 455×80×229
Material	SCM440Hq24×80L
Wheel speed	45 m/s
Dressing interval	40 shafts	25 shafts
Surface finish	0.18 – 0.25 Rz (within 0.3 Rz)	0.2 – 0.3 Rz
Remarks	Surface finish stability

Stepped shafts
Cylinder angular grinding

	S. Vario Grinding Wheel	Conventional
Wheels	SV 80 J 8 V 510×42×203.2	PA 80 J 9 V 510×42×203.2
Material	SCM435H
Wheel speed	45 m/s
Work rotation	270 – 280 min^-1
Infeed speed	0.2 mm/min
Dressing interval	40 shafts	6 shafts
Surface finish	0.20–0.25 Ra (within 0.4 Ra)	0.2–0.3 Ra
Remarks	Stable shape and surface finish, dress interval extended to 700%

Gear shafts
Cylindrical angular grinding

	S. Vario Grinding Wheel	Conventional
Wheels	SV 80 J 7 V 510×25×203.2	SA 80 J 7 V 510×25×203.2
Material	Sintered alloy
Wheel speed	45 m/s
Infeed speed	0.20–0.25 mm/min
Dressing interval	75 shafts	50 shafts
Surface finish	2.0 Rz (within 3.2S)	2.0 Rz
Remarks	Scratches reduced, dress interval extended to 150%