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Julia Premium High Speed Saw Blade

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Premium High Speed Saw Blade

for cutting metals with diameters from 160 mm to 700 mm. We only use super high-speed steel manufactured by steel plants that are ISO 9001 approved. This guarantees the constant quality of the products supplied, which always come with a casting certificate and a detailed chemical analysis.

COATINGS AND SPECIAL APPLICATIONS

Customers can request a PVD surface coating or steam treatment on all DIN sawblades. We can also design and produce special tools for specific customer requirements

HP GRIND

hp-grind

Bright – Grind-finished tool without superficial oxidation or coating. Suitable for cutting structural steel (HV 800), solid material and steel in general.

VAPO

vapo

Steam treated – Superficial CO2 steam oxide treatment with 3 μm penetration, suitable for cutting structural steel, solid material and steel in general. The oxide surface treatment eliminates tension, holds the cooling agent better and improves resistance to clogging. (HV 800).

YELLOW TIGER

yellow-tiger

P.V.D Coating with 3 micron depth titanium base, which is obtained at a process temperature of approximately 490°C. It guarantees a coefficient of friction of 0.47 and a maximum oxidation temperature of 640°. The hardness of the coated layer reaches 2,480 Vickers (Hv 0.05). Its low thermal conductivity guarantees a high heat shield which protects the hardened steel base.

This coating is suitable to cut medium steel and must always be used with plenty of lubrication. It is not suitable for copper, brass or bronze cutting.

GREY SHARK

grey-shark

P.V.D. Coating with 2.5 micron depth. It is obtained by a plasma of titanium and carbon that enhance the hardness to 3,000 Vickers (Hv 0.05). The friction coefficient 0.22 is very low thanks to the large quantity of carbon. This characteristic makes it very suitable for cutting very abrasive materials such stainless steel and alloyed steels with a hardness up to 800 N/mm².  The low coefficient of friction drastically reduces the chip welding on the cutting edge or in the disc sidewall. This coating should always be used with plenty of lubrication during the cutting operation – it has a low oxidation temperature (400°C).

RED DRAGON

red-dragon

Multilayer P.V.D coating with 2.5 micron depth. It is obtained from a plasma with a particular titanium, carbon, and acetylene composition. This composition gives the coating a very low friction coefficient of 0.18 together with a considerable hardness of deposited layer 3,200 Vickers. (HV 0.05). These two characteristics guarantee the circular blades will be high performance with low wear, and also ensure an improvement in the cut’s finish. It is a coating with an oxidation temperature of 470°C and therefore must be used with abundant lubrication. It is particularly suitable for cutting stainless steel, titanium, and hardened steel, along with brass and copper.

BLACK HAWK

black-hawk

P.V.D Multilayer coating with depth of 3 micron. The plasma is obtained by the fusion of a titanium cathode and aluminium, in a particular percentage composition. The addition of an inert gas during the process, and the energy source with which the molecules are loaded, enable surface bombardment of the coating, resulting in excellent coating properties that guarantee a high thermal resistance to the sub layer; it has in fact, an oxidation temperature of 800°C obtaining a superficial hardness of 3,400 Vickers (Hv 0,05). The friction coefficient is 0.45 which enables the use of circular saws with excellent results with limited or minimum lubrication or micro-fog nozzle. It is particularly suitable for high alloy steel, up to 1100 N/mm², for cast iron cutting, stainless steel and all materials that develop high heat energy.

SILVER FOX

silver-fox

P.V.D Multi-layer coating with a thickness of 2,5 microns, opaque grey coloured. The particular composition and the innovative mix of noble elements developed by our R&D achieves a hardness which is higher than 3.650 Vickers (Hv 0,05), unattained by any other coating. This new coating is very tenacious and very resistant to high temperatures. These features are very important to guarantee long-life when using circular saw blades with high speed parameters. It is highly recommended for circular saw blades to work with critical cutting parameters on high performance machines. The friction coefficient of 0,40 allows the use of circular saws both for cutting without coolant, or micro-nebulization, as well as for cutting with plenty of coolant. It’s suggested for cutting high alloy steels up to 1000 N/mm2, stainless steel and all material developing a high thermal energy.

EVOLUTION

evolution

This is a new product developed by our R&S department together with the mechanical division of the Trento’s university. Our goal was to find a special saw blade to improve the cutting speed when working with steel pipes and solid bars with hardness 650 – 850 MPa, when using high performance cut off machines.
This product is recommended to cut carbon steel and stainless steel. The most important characteristics of the EVOLUTION circular saw blades are:

  • Special HSS steel with high wear resistance and extra fine grain
  • Multilayer PVD coating with a surface hardness higher than 3400 HV.
  • Special production process with very tight manufacturing tolerances
  • Side run out and flatness are very low

EVOLUTION is manufactured with the best coating ever developed by Julia’s R&S department. This is a coating with a special composition, achieved by following a precise and specific recipe of noble elements, which achieves the highest surface hardness amongst traditional coatings, and offers great heatsinking capacity.

ULTRA

ultra

The top of Julia’s range of HSS saw blades, offering the high tenacity of steel and the performance of carbide.

This circular saw blade is normally used by our customers who cut hard steel > 1250 MPa.

Using this very special product, it is usually possible to achieve better results than with TCT carbide saw blades. Julia recommends ULTRA to cut very hard steel in the automotive industry, for stainless steel, titanium etc.The most important features of this product are:

  • Special HSS steel saw blade with hardness above 950 HV and extra fine grain
  • Innovative multilayer PVD coating with a surface hardness higher than 3650 HV.
  • Production process with very tight manufacturing tolerances
  • Teeth with a specific profile for high performance cuts
  • Restricted “side-runout” tolerances always apply with Ultra.

The result: Hardness, tenacity, finish and durability – all you need for an excellent cut.

ULTRA is provided with the best coating ever developed by Julia’s R&S department.

This is a coating with a special composition, achieved by following a precise and specific recipe of noble elements, which achieves the highest surface hardness amongst traditional coatings and offers great heatsinking capacity.

Thanks to its very limited side-runout, restricted cutting tolerances are always respected, even on the toughest materials and in difficult conditions. This combination makes the Ultra the top performing blade on the market.

TOOTH SHAPE | Premium High Speed Saw Blade

Premium High Speed Saw Blade 

In tooth production Julia uses only CNC machines with a CBN grinding wheel to obtain a very low surface roughness that guarantees excellent chip removal, and avoids material sticking to the cutting surface of the gullet. Our technicians can advise on the best tooth shape for each specific application.

HSS type A

Tooth shape A is normally used on fine toothing (<T3) for applications such as brass alloy cutting, jewellery and screw slotting.

HSS type B

Tooth shape B is normally used for thin-walled pipes and the cutting of structural shapes, especially where chip removal is not an issue.

HSS type AW

Tooth shape AW, unlike type A, is alternately bevelled, thus optimizing chip shredding. It is particularly suitable for precision cutting.

HSS type BW

Tooth shape BW is primarily used for cutting pipes and sections. The tooth is alternately bevelled at 45°, breaks the chip in two and guarantees good chip evacuation.

HSS type C

Tooth shape C is used for solid sections or very thick pipes. The chip is shredded into three parts due to the presence of both a finishing tooth without chamfer and a pre-cutting tooth (longer than 0.25 mm) with two chamfers on each side.

HSS type BR

Tooth shape BR has been successfully introduced for cutting pipes. It has double the number of cutting edges and guarantees a higher number of cuts and a better finish to the section. It also improves tool durability by about 20% because it reduces the removed section per each single sharpening.

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