SHIN-EI | Products

For Polish

	P Series Grinding wheel for polishing rolls and cylinders
	P Series Grinding wheel for polishing gravure rolls and cylinders
	PG Series Grinding wheel for polishing glass
	SE Series Grinding wheel for polishing and finishing glass

For Grind

Offset grinding wheel

	NT-ABS grinding wheel / OR (Orange) grinding wheel / G-BLACK grinding wheel
	Offset G-BLACK fine grain
	Offset ALCUT

	Flat grinding wheel / Threaded flat grinding wheel / Threaded shell type grinding wheel
	Grinding wheel for cutting
	Other related products

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Polishing Process Flow for
Reconstructed Roll Cylinder

Fabricating and Polishing
Process Flow for New Roll

Gravure grinding wheels of the SHIN-EI P series have been developed for polishing copper rolls used in gravure printing with our own original combination of abrasive material and bond (bonding agent). Making the best use of properties inherent in the resinoid bond, these wheels show their performance in every aspect of sharpness, surface finish and wheel life.

Dimensions (Outer dia x Thickness x Hole dia)	Abrasive material	Grain size	Hardness
Unit of dimensions: mm (millimeter) Polishing method : Vertical polishing (wet type) Maximum working peripheral speed : 2,000 m/min
200×50×50 200×55×50 200×60×50 200×75×50	For polishing copper rolls	#120 #180 #220 #280 #320 #400 #500 #800	T S R	For plate removing
200×50×50 200×55×50 200×60×50 200×75×50	For polishing copper rolls	#120 #180 #220 #280 #320 #400 #500 #800	Q P O	For general polishing

High-speed roll (For copper plating)

Grit Grade	Grit Dia	RA	RZ
Unit : μm (micrometer)
#220	80.0	0.61	4.51
#320	60.0	0.50	4.10
#400	44.0	0.45	3.90
#500	33.0	0.36	3.39
#800	20.0	0.17	1.73

Test conditions

Dimensions of work ground : 1000mmL×500mm
Hardness of copper plating:Hv210
Wheel revolutions : 700rpm
Wheel feed : 800mm
Wheel pressure : 50Kg
Work revolutions : 120rpm

* Above data may vary depending on machine operating conditions and grinding wheel bond degree.