Why the Multi Blade Granite Cutting Machine Is So Popular in Stone Processing Industry



Gang saw cutting process is not continuous, so its cutting speed is relatively too low. Its low cutting speed has heavily restricted the improvement of stone cutting efficiency. So, a new kind of stone cutting machine is created to solve the problem. That’s diamond circular saw stone cutting machine. This machine is composed of machine body, blade driving motor, diamond circular saw, blade rise/fall guide system and blade horizontal moving guide system, etc. It cuts stone by the diamond circular saw running at high speed and reciprocation movement along horizontal guide rails on the cross-beam. Meanwhile, diamond circular saw falls along vertical guide rail to feed to stone block.

Diamond circular saw stone cutting machine has higher cutting speed than gang saw machine and greatly improves stone processing efficiency. So, diamond circular saw stone cutting machine is the most widely used stone processing equipment nowadays. But it comes with a disadvantage. The circular saw stone cutting machine maximum cutting depth is determined by the circular saw diameter. Usually it can’t exceed circular saw diameter.

It’s said that the biggest circular saw stone cutting machine was manufactured in Germany in 1980. The circular saw diameter was 5 meters. But the blade driving spindle is not strong enough to bear a so heavy saw blade to make vertical stone cutting. Secondly, due to that the circular saw diameter is really too big, the slab surface cut by it is not smooth. So, it is difficult to make the circular saw into a very big diameter, in view of technical aspect. Even though that circular saw stone cutting machine has much higher linear speed than gang saw machine, it can’t cut as deep as gang saw and can’t produce so many pieces stone slab as gang saw at a time. Therefore, circular saw stone cutting machine can’t replace gang saw machine in cutting big size slab.

To furtherly improve stone processing efficiency, multi blade granite cutting machine is created based on single blade circular saw stone cutting machine. In this kind machine, many pieces circular saw are installed on a long spindle with spacer in between to cut stone. Though there is not much change is machine structure, the multi blade granite cutting machine can be mounted as many as one hundred pieces circular saw. So it is able to cut 100 pieces stone slab at a time with very high cutting efficiency.

To get higher level of automation in the multi blade block cutting machine, people add a horizontal blade to the machine. After the vertical blades cut stone block into slabs, the horizontal blade cuts slab off from the stone block. It not only reduces human labor work, but also reduces production cost.

Gang Saw is An Excellent Block Cutting Machine

Gang saw is one of the many widely used stone block cutting machines. It’s composed of saw frame, link rods, vertical pillars and straight band saws. The straight band saws are installed in the saw frame. The link rods motivate the saw frame and straight band saws into reciprocation movement so as to cut stone. Meanwhile, the saw frame vertical transmission mechanism works to feeding the band saws downward on stone block continuously. In the early days, gang saw cuts stone block by steel bands and steel grits. Today the gang saw is highly developed with high level automation and big cutting capacity.

In 1970, Italy was the first country to launch large gang saw machine cutting stone by straight band saws welded with diamond segment. It was able to cut maximum size marble block 3.5-meter long and 2-meter wide. That means that the gang saw can cut 100pcs slab of 2cm thick at a time, about 20% higher capacity than the old style gang saw machine. Currently, the gang saw block saw machine cutting by straight band saws welded with diamond segment is merely used in marble production. It is not qualified to cut harder stones like granite. Because the welded diamond segment is easy to break off from the straight band saw in cutting granite. That’s why granite block is usually cut by steel band saws and steel grits.

Most of the gang saw machines that used in Chinese stone plants are imported from Italy. Even though that some China stone machine manufacturing companies try to learn from Italian technology and produce their own gang saw machine since 2000, most of them still not master the core technology. Their gang saw is not as well as the Italian gang saw in cutting efficiency, cutting cost control and mean time between failures. For China gang saws, problems mainly occurred in the saw frame guide system and band saw hydraulic tensioning system. Italian gang saw are two link rods design while most of China gang saw is single link rod design.

China Stone Cutting Machine Industry and Its Future Development

The stone processing equipment usually includes stone cutting machine, grinding and polishing machine, profiling machine, etc. Stone processing equipment is always developing as the stone industry goes ahead. In China, the stone processing industry is still a young industry compared with other industries that with long history. So, there are still many shortcomings in Chinese stone processing equipment as well as its application. Meanwhile, there is some technology gap between China stone processing equipment and that of international advanced countries. It’s necessary for us to have a clear awareness and summarize it for a better development in the future.

It’s commonly believed that the natural stone is a material coming with many good qualities. For example, it has beautiful texture, elegant appearance, not burn in fire, and resistant to scratch. Even since the ancient times, natural stone has been used for building construction by humans. However, the natural stone processing was completely done by manual work in ancient times, until the first stone cutting machine was created in Europe in the 19^th century. It brought in a revolution for stone processing industry, and from then on, people change from manual work to electric equipment production.

China stone processing industry has experienced a rapid growth since the reform and opening policy about 30 years ago. China stone processing equipment also got a fast development during the last 30 years. There are two periods in history that China import advanced stone processing equipment in large scale from foreign countries, one is the late 80s, the other is the late 90s to the beginning of this new century. By learning from the advanced technology, China stone machine manufacturing technology achieved a great improvement. Today, the Chinese stone cutting machine manufacturers pay more attention to research and offer more and more good machines for stone industry home and abroad.

Who We Are?

Xiamen Chiyi Stone Machine Co., Ltd. is committed to manufacturing a variety of machines and systems for natural stone processing industry. The product range covers bridge saws, granite block cutters, granite cutting machines, granite polishing machines, etc. These machines have been widely used in stone processing plants for sawing stone block, slab & tile polishing, edge cutting, profiling, calibrating, chamfering, etc.

To produce good machine for customer, we only employ specialized staffs who are skillful with field knowledge and experience. They add value to the every single detail in machine part construction and machine assembly. By creating a complete line of precise stone machines with reliable quality and performance, now we not only supply equipment for stone processing plants in China, but also export to Vietnam, India, Ukraine, Russia, Kazakhstan, USA, Australia, and African countries.

We are available by the following contact:
Address: No362 Xiahe Road, Xiamen City, Fujian Province, China
Tel: +86 592 2037326
Fax: +86 592 2037753
Hotline: +86 18906034430
E-mail: sale@bridgesawchina.com
Website: www.bridgesawchina.com