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GBT 850 DUO

Automatic grinding machine with double grinding wheel to grind the sides of the teeth of carbide tipped circular saw blades from ø100 to ø850 mm.

AUTOMATIC GRINDING MACHINE WITH DOUBLE GRINDING WHEEL FOR REPARING OR MANUFACTURING CARBIDE-TIPPED CIRCULAR SAW BLADES FROM ø100 TO ø850 MM.

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HIGHLIGHTS

  • Any pitch of the tooth is possible
  • Integrated refrigeration equipment
  • Robust and very simple design that allows continuous use of the machine without breakdowns
  • Easy to use
  • Very compact machine with a wide range of disc diameters: from 100 to 850 mm.

ELITE GBT 850 DUO. MACHINE BASIS.

The ELITE model GBT 850 DUO is our CNC grinding machine for the flanks for circular saws with tungsten carbide teeth.

This version is equipped with double grinding wheel and its operation is CNC with LCD screen. It allows a precise and fast grinding of the flanks of the teeth to manufacture carbide circular saws or carry out teeth replacement


ELITE GBT 850 DUO. HOW IT WORKS

Easy to use control panel

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The machine includes a led cabin light as standard.

The control panel allows selection of left or right rotation of the sharpening stone.

The grinding wheel motors with a direct motorized spindle system are adjustable from 5,000 to 9,000 RPM for optimum sharpening quality with minimal stone wear. It is driven by a frequency inverter.

Up to 7 teeth/minute in triple-chip tooth

You can go fast when it is needed!
All the movements has been optimized to reduce dead times.

Programming and operation of the machine

Homing of the axis

Grinding wheel rotation speed variable from 2.500 to 5.000 RPM

Our machines include the variable frequency drive as a standard feature, so you can adjust grinding wheel speed at the optimal value and also reduces energy consumption.

Saw diameter

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Saw diameter from 100 mm.
For grinding the flanks of scoring discs or portable machines
Allows indexing of any type of tooth pitch.

Integrated refrigeration equipment

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Allows wet sharpening for better sharpening quality and longer life of the sharpening stone.
It integrates a 200-liter tank with removable grids for easy cleaning.

Easy access

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Clean design and easy access for service or repair of the machine.
The electrical panel is located at the bottom and the mechanics at the top of the machine, protected by an easy-to-open cover.

Easy maintenance

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The electrical cabinet is organized in a clean manner, so the maintenance is easy when you need to do it.


ELITE GBT 850 DUO. SPECIFICATIONS

TECHNICAL DATAGBT 850 DUO
Saw blade diameterFrom ø100 to ø850 mm. (4" to 33,5")
Saw blade hole diameterFrom ø10 mm.
Sheet thicknessUp to 10 mm.
Tooth pitchUp to 120mm. (4,72"). CNC controlled.
FLANK GRINDING
Sharpening pathUp to 40 mm. (1,57")
Rake angleFrom +15º to -30º
Radial cutting angleFrom +5º to -5º
Tangential cutting angleFrom 0º to 5º
REFRIGERATION EQUIPMENT
Reservoir capacity220 liters
Coolant flow rateUp to 40 liters/minute
TECHNICAL DATA
AutomationUsing 4 CNC axes (X, Y1, Y2, A)
Clamping the sawBy pneumatic piston
Motor wheel0,75 kW (each unit)
Wheel speedadjustable from 5000 to 9000 RPM
Diameter of grinding wheelø100 mm.
Diameter of grinding wheel holeø20 mm.
Dimensions of the machine1410 x 1225 x 1800 mm.
Connection230V/400V, 50/60 Hz. Total connected power: 3.3kW - Requires a pressurized air supply >6 Bar
Machine weight840 Kg.

DOWNLOAD LEAFLET

GBT 850 DUO - EN.pdf


COMPLETE SOLUTION FOR THE REPAIR OF CIRCULAR SAWS

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Together with the tungsten carbide plate welder ELITE model SOLDAmaq 1200, you can carry out the complete repair of your circular saws in three steps:

  • Desoldering of damaged teeth in the welder SOLDAmaq 1200
  • Welding of the new carbide plates in the welder SOLDAmaq 1200
  • Grinding of the side flanks on the GBT 850 DUO

And we already have the saw repaired!


MACHINES COMPARISONS AT A GLANCE

MODELTOP GRINDINGFACE GRINDINGBACK OFF GRINDINGSIDES GRINDING
AVB 850All tooth shapesAll tooth shapesNoNo
SVG 850All tooth shapesFlat teethNoNo
MD 650All tooth shapesAll tooth shapesNoNo
MVB 850Flat teethFlat teethYesNo
GBT 850 monoNoNoNoYes: One side at a time
GBT 850 DUONoNoNoYes both sides at same time
GBT 851 DUONoNoNoYes both sides at same time