DUOMATIC Multiwire Machine for Block Cutting

The Two-Wires Saw Machine of Grani Roc is designed for a high slabbing production from stone blocks. The machine has the classic setup of static structure with moving trolley and has an automatic system for changing the thickness between wires. This system makes the machine being very versatile and time saving in changing the thickness of each cut.
·The bridge structure and pillars of the machine are built in laminated steel. All surfaces of contact between the different parts are machined for guaranteeing high precision in assembly and also in the cutting process.
· All the steel elements of the structure are subjected to a surface finishing consisting of a deep cleaning and degreasing treatment, a metallization treatment and corresponding protective layers and painting. These treatments enhance the durability of the machine against aggressive weather and working conditions.
· The main motor is direct in the main pulley, and it is controlled by an electronic frequency variator –inverter-, that permits to apply progressive linear speed to the wire and its adjustment to optimize the behaviour and performance of the tool.
· The tensioning of the wire is made pneumatic and automatically and independent for each wire, with indication of wire breakage or shortage.
· The machine has an automatic system for adjusting the distance between wires, instead of having manual devices or having to remove all the wheels manually for changing the thickness of the slabs to be cut.
· All the main pulleys –drive and tensioning– and guiding wheels are protected by rubber liners in order to get the necessary traction of the wire. Such liners can be easily changed once they are worn out.
· The machine is equipped with an automatic cooling system for the diamond wire with detection of constant water pressure. This system stops the machine in the case of lack or insufficient water flow, protecting the tool and preventing possible deterioration or damage of the equipment.
· All the up and down screws are protected with hoods against dust and water.
· The machines has an automatic greasing system that injects lubricating liquid in the critical parts of the machine ensuring their correct functioning and the long life of the spare parts.
· The control panel is situated in the lateral part of the machine and moves with it. It has all the drive and protection components and devices of all control and safety equipment of the machine. All these components are standard, allowing easy and quick maintenance and / or replacement.
· The machine has its own mobile compressor, necessary for the pneumatic system for tensioning the wire.
· The trolley is 2.300 x 2.300 mm and has a maximum capacity of 30 Ton. The rotation is manual 360º and can be blocked every 90º.

Parameters	Unit	DUOMATIC
Cooling water(min. required pressure 3.5 bar)	L/min	40
Max. Cutting width	mm	3800
Machine width (W)	mm	9000
Approximative Weight	Kg	9000
Max. Cutting height	mm	1980
Minimum thickness between wires	mm	20
Forward speed of the machine	mm/min	0 – 3000
Dim. Trolley Size/Worktable size	mm	2300 x 2300
Machine length (L)	mm	2000 +Vias
Diamond wires speed	m/s	0 – 40
Thickness controlling system		Automático
Installed electrical power	kw	29
Machine height (H)	mm	5300
Downfeed speed of the wire	mm/min	0 – 675
Worktable max. rotate angle	°	manual 360º and can be blocked every 90º
Main motor power	kw	22
Voltage/Frequency	V/Hz	3 x 380
Maximum thickness between wires	mm	120
Diamond wire length	m	18,65
Worktable load capacity	T	30