Grani Roc COMBO Single Wire Cutting for dressing stone blocks

The COMBO equipment from Grani Roc is especially designed to dress the blocks before they go for slabbing in a multiwire saw machine. It is composed of an stationary wire saw, a mobile wire saw and a mobile trolley, allowing to perform two cuts simultaneously.
·The structures and pillars of the machines 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 motors are controlled by electronic frequency variators –inverters-, that permit 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 with detection and indication of wire breakage or shortage and stop the machines in case of breakage of the wire.
· 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, situated in the lateral part of the machine, 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 machines have their own mobile compressor, required 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. The movement of the trolley is controlled by an independent keypad to provide an easy movement and positioning of the trolley in other parts of the factory