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Pedrini M920GR Bridge saw for marble and granite
FOB Price:
Type:
Stone Factory MachinesStone Slab Cutting MachinesCNC Bridge Cutting Machine
Usage:
Granite, Marble, Limestone, Onyx, Artificial Stone, Basalt, Quartzite, Sandstone, Travertine
After-Sale
Warranty:12 Months
Install and Guarantee:Customer pay for installation, Remote guidance installation, Third-party team installation
Maintenance:Remote troubleshooting, Field troubleshooting
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Machinery Function Features
Cast iron bridge machine with tilting head for sawing marble and granite dimensioned elements, equipped with automatic PLC controlled cycle programming.
All M920GR motion motors are inverter controlled and equipped with encoder. The work parameters are programmed from the control panel and visualized on touch-screen display.
The turning table is motorized and, on demand, it can be tilting.
Pedrini bridge saw M920 cuts slabs and semi-finished products of marble, granite and other natural stones by means of a diamond disc.
M920 is highly competitive and efficient, its sturdy structure and user friendliness ensure perfection and linearity of the vertical and bevel cutting performance.
Each model can be fitted with several optional accessories which allow to tailor the machine according to each customer’s needs.
The machine is programmable through a big size touchscreen colour monitor. The rotating bench is available in different models.
M920 structure is mainly composed of a bridge and a mobile disc-holder trolley. Two bridge cross beams are fixed to concrete walls. The bridge has been manufactured in large thickness honeycomb structure and machined on all the reference surfaces by one sole positioning on tool machine.
All parts have undergone structural checks following the FEM (Finite Element Method) and their precision ensures perfect machine geometry and correct assembly on site. The machine surface is protected with two layers of paint applied after the sandblasting operation.
The exclusive “V” shaped double guides which linearly and constantly drive the disc-holder trolley along the bridge are machined onto the upper part of the bridge. The two sliding side cross beams are equipped with adjustment and foundations fixing systems. The disc-holder trolley houses the disc up and down movement and, upon request, the tilting movement to 45° or 90°.
X AXIS: CUTTING AND RETURN STROKES
The disc-holder trolley moves along the bridge through a combined gear motor/pinion/rack system powered by inverter and controlled by encoder which displays the position along the stroke. Protection carters efficiently cover the oil bath guides.
Y AXIS: LEFT AND RIGHT MOVEMENT
The transversal bridge movement is driven by a Cycle Drive gear motor controlled by inverter and encoder which shows the data on the display. The two side pinions are connected by a single shaft which ensures the positioning uniformity. The oil bath tracks are protected from water and dust.
Z AXIS: UP AND DOWN MOVEMENT
The up and down movement is fixed on the disc-holder trolley structure and slides along two prismatic guides driven by a gear motor/precision screw system and it is powered by an inverter and controlled by an encoder which shows the data on the display.
A AXIS: DISC TILTING MOVEMENT
When available, the disc tilting movement inclines the whole up and down axis up to 45° allowing the tilting cuts, also step cutting, and is driven by a self-braking gear motor with inverter and encoder.
All M920GR motion motors are inverter controlled and equipped with encoder. The work parameters are programmed from the control panel and visualized on touch-screen display.
The turning table is motorized and, on demand, it can be tilting.
Pedrini bridge saw M920 cuts slabs and semi-finished products of marble, granite and other natural stones by means of a diamond disc.
M920 is highly competitive and efficient, its sturdy structure and user friendliness ensure perfection and linearity of the vertical and bevel cutting performance.
Each model can be fitted with several optional accessories which allow to tailor the machine according to each customer’s needs.
The machine is programmable through a big size touchscreen colour monitor. The rotating bench is available in different models.
M920 structure is mainly composed of a bridge and a mobile disc-holder trolley. Two bridge cross beams are fixed to concrete walls. The bridge has been manufactured in large thickness honeycomb structure and machined on all the reference surfaces by one sole positioning on tool machine.
All parts have undergone structural checks following the FEM (Finite Element Method) and their precision ensures perfect machine geometry and correct assembly on site. The machine surface is protected with two layers of paint applied after the sandblasting operation.
The exclusive “V” shaped double guides which linearly and constantly drive the disc-holder trolley along the bridge are machined onto the upper part of the bridge. The two sliding side cross beams are equipped with adjustment and foundations fixing systems. The disc-holder trolley houses the disc up and down movement and, upon request, the tilting movement to 45° or 90°.
X AXIS: CUTTING AND RETURN STROKES
The disc-holder trolley moves along the bridge through a combined gear motor/pinion/rack system powered by inverter and controlled by encoder which displays the position along the stroke. Protection carters efficiently cover the oil bath guides.
Y AXIS: LEFT AND RIGHT MOVEMENT
The transversal bridge movement is driven by a Cycle Drive gear motor controlled by inverter and encoder which shows the data on the display. The two side pinions are connected by a single shaft which ensures the positioning uniformity. The oil bath tracks are protected from water and dust.
Z AXIS: UP AND DOWN MOVEMENT
The up and down movement is fixed on the disc-holder trolley structure and slides along two prismatic guides driven by a gear motor/precision screw system and it is powered by an inverter and controlled by an encoder which shows the data on the display.
A AXIS: DISC TILTING MOVEMENT
When available, the disc tilting movement inclines the whole up and down axis up to 45° allowing the tilting cuts, also step cutting, and is driven by a self-braking gear motor with inverter and encoder.
Technical Data
Parameters |
Unit |
M920GR |
M920GR-F |
M920GR-D900 |
M920MA-D900 |
Useful cutting length with 310 mm thick slab |
mm |
- |
- |
2900 |
2900 |
Horizontal stroke(X axis travel) |
mm |
3600 |
3600 |
3400 |
3400 |
Cooling water requirement(1.5 bar min. pressure) |
L/min |
50 |
50 |
50 |
50 |
Vertical cutting spindles motor power |
kw |
18,3 / 4P |
18,3 / 4P |
22 |
30 / 4P |
Rotating table dimensions (not included) |
mnm |
3450 x 1900 |
3450 x 1900 |
3450 x 1900 |
3450 x 1900 |
Head raising/lowering stroke(Z axis travel) |
mm |
420 |
420 |
420 |
420 |
Machine width |
mm |
6000 |
6000 |
6000 |
6000 |
Max. workable thickness |
mm |
200 |
200 |
310 |
310 |
Machine height |
mm |
2800 |
2800 |
2800 |
2800 |
Disc diameter |
mm |
625 |
625 |
900 |
900 |
Cutting speed - X axis |
m/min |
0 ÷ 16 |
0 ÷ 16 |
0 ÷ 16 |
0 ÷ 16 |
Bridge transversal stroke(Y axis travel) |
mm |
3600 |
3600 |
3600 |
3600 |
Machine length |
mm |
4900 |
4900 |
4900 |
4900 |
Installed electrical power |
kw |
22 |
21 |
25 |
34 |
Max. liftable weight with all the vacuum cups activated |
Kg |
4000 |
4000 |
4500 |
4500 |
Tools holder head inclination(A axis blade rotation) |
° |
0 ÷ 45 |
0 ÷ 45 |
0 ÷ 45 |
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