AVB 850

DOUBLE-WHEEL SHARPENING MACHINE FOR CARBIDE CIRCULAR SAWS

ELITE AVB 850. THE CONCEPT.

The ELITE model AVB 850 is our new and fastest sharpening machine for the top and the face of all common tooth geometries in circular saw blades with carbide tip for circular blades diameters from ø100 to 850 mm.

The double-grinding wheel system allows for complete sharpening of the face and back in a single setup: when the machine finishes sharpening the face, it automatically adjusts to sharpen the back, or when it finishes sharpening the back, it automatically adjusts to sharpen the face. Remove the finished saw from the machine!

One-pass external sharpening for tooth types:

• Flat, inclined, alternating, alternating with bevel, pointed, trapezoid, trapezoid-flat, pointed-flat, alternating-flat, trapezoid-trapezoid.

With 5 CNC axes for complete machining of all common tooth geometries in one cycle, particularly short strokes ensure fast sharpening operation.

Fully enclosed cabin for silent operation with a very fast door opening system that guarantees quick placement of the saw blade and access door for maintenance.

TOOTH TOP SHARPENING PROGRAMMING

The touchscreen for quick and easy programming.

The tooth shape can be selected at the bottom of the screen. The data required for tooth sharpening appears in the center of the screen when the tooth type is selected.

You can choose the sharpening order: first sharpen the back of the tooth, then the face; or in reverse order: first the face and then the back.
The machine will automatically sharpen the entire saw teeth (top + face) to obtain a completely finished saw.

STANDARD TOOTH TOP SHAPES

TOOTH FACE SHARPENING PROGRAMMING

The face sharpening programming screen allows you to select, among other things, the type of grinding wheel sharpening: Start sharpening, move the wheel away, and exit without sharpening. Or start sharpening and exit polishing with the wheel.

You can also select the direction of rotation of the grinding wheel: left, right, or reverse direction for each tooth. You can also select the speed of rotation of the grinding wheel.

The tooth shapes allowed are varied: flat tooth, side angle, angle on both sides, or a combination.

You can choose the sharpening order: first sharpen the back of the tooth and then the face; or in reverse order: first the face and then the back.
The machine will automatically sharpen the entire saw teeth (top + face) to obtain a completely finished saw.

STANDARD TOOTH FACE SHAPES

BROKEN TEETH OR NEW TEETH

You can easily add and edit broken teeth or new teeth. This feature can then be activated or deactivated without having to change the entered values. Very useful, for example, for skipping broken teeth when sharpening the face, but deactivating this option when sharpening the back.

ELITE AVB 850. HOW IT WORKS

Automatic operation using 5 CNC axes:
A: Tooth pitch
B: Tooth cutting angle
C: Lateral angle of the top of the tooth
X: Sharpening load
Z: Sharpening path

Easy to use control panel

The color touch screen control panel allows creation or editing of a program while the machine is working on another program. Among the programmable values are:
• Tooth angle programming. The wheel axis is automatically positioned to the value entered in the program
• Tooth geometry
• Sharpening path
• Sharpening charge
• Sharpening speed
• Tooth pitch
• Tooth advance claw feed rate
• Number of teeth
• Broken teeth

Up to 10 teeth/minute when grinding discs with flat trapezoid teeth

Up to 10 teeth/minute for the most typical tooth geometry: flat trapezoid. All movements have been optimized to reduce downtime. Making the AVB 850 our fastest grinder, allowing a 96-tooth flat trapezoid disc to be ground in less than 10 minutes.

Variable wheel rotation speed from 2,500 to 5,000 RPM

Variable wheel rotation speed from 2,500 to 5,000 RPM. Includes a variable frequency drive as a standard feature, allowing you to adjust the wheel speed to the optimal value required and reduce energy consumption.

Integrated cooling system

Machine operates with water-soluble coolant or grinding oil for better sharpening quality and longer grinding wheel life.
Integrated coolant system with 220-liter tank and removable grates for easy cleaning.

Easy access and maintenance

At the back of the machine we find the electrical panel at the bottom and the mechanical system at the top, both protected by their corresponding easy-access panel, which also reduces the total space needed for the machine.

ELITE AVB 850. EQUIPMENT INCLUDED

• Double wheel holder for sharpening the front and back surfaces
• 3 mm feed dog
• Device for serial sharpening of equal diameters
• LED lighting of the work area
• Ready for connection to an ELITE FILTRAmaq individual filtration system or a centralized filtration system.

ELITE AVG 850. SPECIFICATIONS

TECHNICAL REQUIREMENTS

Precise 6 bar air connection.
Connection voltage: 220/400V 2Ph 50/60Hz
Required connection power: 1.5 kW

RECOMMENDED OPTIONAL ACCESSORIES

Saw holders for incisors and for discs, and centering rings in various sizes

For better sharpening quality, it is recommended to equip the machine with the filtration system ELITE FILTRAmaq UNO. Filtration down to 2 µm.

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