Company Who Supplied First Multiwire To Turkey: nodosafer

Nodosafer, SL is a international company, dedicated in its main activity to the manufacture of machinery and industrial equipment.

 Since its establishment in 1983, Nodosafer has focused its efforts on incorporating new technologies in its manufacturing process, currently having CAD / CAM programs, machining machines and state-of-the-art equipment, as well as 5000 square meters of facilities that allow us to offer different solutions both in boilermaking, as in the machining of heavy parts and precision, as well as in the areas of turning and milling.The experience and versatility of our staff, together with the support of the technical departments, give us the possibility of offering a fast service to companies that need immediate solutions in the repair and maintenance of machinery. It is worth highlighting the intervention in companies from different sectors, such as naval or stone, as well as quarries, pulp mills, in maintenance work in the plants themselves, repair of presses, heavy machinery, crushers, large lines of production, highlighting in-site machining.In Nodosafer we bet on the improvement of the production process as an essential tool to compete in a global market where the satisfaction of our customers is the most important. Multiwires which will have an important position in future of our country’s stone industry are one of the main machinery production of Nodosafer. Nodosafer, to be able to fullfill all the necessities, has designed this machine in a wide range of types capable of running with 10, 35, 40, 56 and 72 wires and with diamond wire diameter of 7.3 mm, 6.3 mm and 5.3 mm. In Turkey, the first operating 70 wires multiwire machine has been supplied by Nodosafer to Derya Granit – Burdur.

The multiple diamond wire cutter is a multiwire machine designed to produce boards and plates of variable thickness from large blocks of granite and natural stone. This unit aims to be the alternative to the primary sawing methods currently used, improving the production capacity quantitatively, efficiently taking advantage of the energy resources necessary for the production of materials and significantly reducing the waste produced during the cutting phase.The production capacity of multiwires in marble is very high. A multiwire with 70 wires can cut appr. 9-10 marble blocks in 24 hours, while a 80 blades gangsaw can cut appr. 2-3 blocks. This practically means that such a multiwire is equivalent to aprox. 4 gangsaws. This automatically reduces also the manpower necessary and decreases the cost of the cut.

The high execution speed of the marble block cutting cycle makes convenient the operation even with a multiwire with 35 wires which has a production capacity of 4-6 blocks in 24 hours, equivalent to 4 gangsaws 40 blades or 2 gangsaws 80 blades.Multiwires, generally positioned longitudinally for the blocks to enter from front side of the machine, can be positoned as well transversally so that blocks can enter from narrow side of the machine in order to maintain general layout composition of factories making production with conventional gangsaws. In that case multiwires are equipped with transfer trolleys that can position the block under the machine according to its width.The multiple diamond wire cutter, is an efficient and productive machine, to obtain high yields, endowed with great robustness, thanks to its design that forms a set where all the movements are concentrated.The structure of the machine is basically composed of sturdy columns made of steel, interconnected by transoms. On the columns, the steering-wheel carriers move vertically supported by linear guides and skids driven by ball screws, synchronized and motorized by servomotors for the ascent / descent of the threads.The driving drum is formed by a single pulley of multiple grooves and connected to the proncipal engine by means of a transmission by pulleys and belt. The threads are positioned manually according to the desired processing thickness supported on one side of the drive pulley and in turn stressed by the pulley on the opposite end.

In multiwire you can cut slabs of 2-3-4-5-6-7-8-9- 10 cm thickness. The modular bands on the driving group have grooves which permit to quickly position the wires at the proper distance according to the slabs thickness you intend to produce. This quick operation can be completed within 60 minutes in multiwire, while such an operation in the gangsaw can take 4-8 hours. This difference of operational speed provides a considerable flexibility for multiwire. An operator who is obliged to cut several different thicknesses of slab from the same material can complete the job in a few hours, whereas it would normally take several days with the marble gangsaw.

 

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It is not necessary to stop the cutting cycle in the multiwire for bracing of the block, whereas this is a regular operation in gangsaws. This necessity is provided by the supports on the edge of the trolley and the automatic wedges that enter the slot of the cut. So, there are no blade marks as in the gangsaw as the result of stops. Besides the surface of the cut of the slab is much more smooth with the multiwire. As a result, if the slab is going to be resinated the consumption of the resin decreases and the speed of polishing increases, which brings a considerable cost reduction.

As mentioned above 7,3 mm, 6,3 mm and 5,3 mm diameter wires can be used. The recent developments in 5,3 mm wires created important advantages during the cut. For example, comparing

5,3 mm wires with 7,3 mm wires:

• 6 % increase of the block yield
• 20 % electric consumption reduction
• 27 % sludge reduction.  

Main technical aspects of Nodosafer multiwires can be summarized as below,

• Robust structure that prevents vibrations.
• Maximum protection against the penetration of
•  water and dust in the most sensitive parts.
• Helical ball screws of large diameter in vertical and tensioning movements.
• Linear guides in the columns to guarantee the absolute verticality of the cut.
• Servomotors synchronized by software in vertical movements that ensure smooth cutting, low consumption, maximum precision and avoid gaps and problems of the central motorization with transmission and resending.
• Basic mechanism of large-diameter drive drum that prolongs the life of the thread.
• Automatic thread tensioning.
• Independent control of the arrow for each thread.
• Motorized trolley with optional position control.
• Controlled emergency stop to avoid marks on the cut block.
• Possibility of resuming a cut automatically or semi-automatically.
• Wide range of devices and functions of the program for the safety of the operator and the machine.
• Semi-automatic coining system.
• Automatic and progressive decrease in speed in case of excessive arrow in the thread.
• Detection of wire break and controlled stop (fast braking and climb at maximum speed)
• Operator panel in color with great ease of use and multiple configuration possibilities.
• Up to 15 or 72 threads with varied possibilities for the combination of cutting thicknesses.
• Compact electrical panel with the latest technologies.
• High power main motor driven by inverter.
• Keypad for movements in manual mode

 Dedication to serve true machinery and technology according to customer and customer’s project needs is main philosophy of Nodosafer SL.

 We believe that cooperation between Nodosafer SL and Merteks Ic ve Dis Tic. Ltd. Sti. For Turkish market will create considerable added value to Turkish Stone Industry