what we do

HSS

Normally, the steels used in the production of STARK circular saws are high-speed wolfram-molybdenum (5% molybdenum) steel and high speed wolfram-molybdenum and cobalt (5% cobalt) steel. The first is characterised by the low fragility, high yield point with consequent mechanical resistance and high degrees of toughness and wear resistance.  The second, thanks to the cobalt, has excellent cutting adhesion and hardness and, as a consequence, it is particularly used in cutting stainless steels or materials with high mechanical resistance, which produce high temperatures in the contact area during the cutting process.
These saws are used on manual, semi-automatic and automatic cutting-off machines for open section drawn products, round and square drawn products, and pressed and bent profiles of various sizes up to a maximum of 160 mm.
The saws range from between Ø 175 mm and Ø 630 mm, thicknesses of 1 mm min. to 5 mm max., BW toothing (used on cutting machines for ferrous materials), HZ (different from BW due to the capacity of breaking the chip into 3 parts that are as wide as 1/3 of the saw thickness), BS “chip breaker ” (designed mainly for cutting tubes) and VP “Variable Pitch ” (used for cutting irregular sections, e.g. tube bundles).
Stark processes special toothing on high technology CNC machines (designed by our ENGINEERING division) that use solely CBN grinding wheels, upon request.  With this type of toothing, high cutting performance is achieved thanks to improved finish, reduced thermal shocks and accurate tooth geometry.

SILVERFACE

Surface hardness (Hv): 900 Oxidation temperature (℃): 350 Friction coefficient: 0.55 The silver surface has a low friction coefficient and is suitable for cutting non-ferrous metals..

SPECIAL OV

Surface hardness (Hv): 900 Oxidation temperature (℃): 350 Friction coefficient: 0.6 Specific OV increases the surface hardness of the saw blade after steam oxidation on the smooth surface, making it m….

GOLDFACE

GOLDFACE  is a PVD coating considered an entry level but able to give very good cutting performance compared to blades without PVD and therefore significantly reduce the cost per cut. This coating is suitable ….

SPEEDFACE

SPEEDFACE saw blades are characterized by very low friction coefficient and fast cutting speed from 50 up to 180 m/min. They are specifically designed to cut materials such as mild and carbon steel with tensil….

ACTIVEFACE

ACTIVEFACE saw blades are characterized by very high oxidation temperature. Cutting speed from 50 up to 180 m/min. They are specifically designed to cut solid materials in mild and medium alloyed carbon steel ….

MILLENNIUM

MILLENNIUM saw blades are compatible with flying cut-off machines with very high cutting speed from 120 up to 250 m/min. They can cut hard materials such as carbon and alloyed steel and high tension steel up t….

Go To Top