The 24th Nan'an Shuitou Stone Fair | Selection and Innovation Directions for Stone Multi-Wire Saw Machines

The 24th Fujian Nan'an Shuitou International Stone Fair was successfully held from November 8 to 11 in Shuitou Town, Nan'an City. At the exhibition, multi-wire saw machines became the flagship products of various enterprises, attracting widespread industry attention.

Guide to Choosing a Multi-Wire Saw Machine

Stone-cutting multi-wire saw machines are essential for processing large stone blocks into thin slabs. In the initial stage of stone processing, large raw stone blocks extracted from quarries must typically be cut into slabs of specified thickness to facilitate subsequent grinding, polishing, and shaping processes. Multi-wire saw machines operate with multiple cutting wires simultaneously, efficiently slicing large stone blocks into numerous thin slabs, enhancing production efficiency, and reducing material waste. Therefore, multi-wire saw machines play a critical role in the initial cutting phase of stone processing.

Selecting the right multi-wire saw machine is essential for improving production efficiency and product quality. The main types include ascending and descending multi-wire saw machines, each suited to different materials and applications:

Ascending Multi-Wire Saw Machine:

Suitable Materials: Designed for hard stones such as granite, which typically require high cutting precision and have considerable hardness, necessitating machines with greater strength.

Application Scenarios: Widely used in applications requiring a high degree of flatness on the cutting surface, such as tombstones, monuments, and architectural decorative items.

Working Principle: The cutting wire moves from bottom to top, with the stone fixed on the workbench. During cutting, gravity helps maintain wire tension and stability, reducing vibration for a smooth and precise cut.

Features: Due to the complex structure and high manufacturing cost, ascending multi-wire saw machines are designed for high-precision cutting and are suitable for high-end stone processing applications.

Descending Multi-Wire Saw Machine:

Suitable Materials: Ideal for medium-hard stones, such as marble, travertine, sandstone, and limestone.

Application Scenarios: Suitable for large-scale production and applications with cost control requirements, such as processing standard building stones and interior decorative materials.

Working Principle: The cutting wire moves from top to bottom, with the stone also fixed on the workbench. The relatively simple structure facilitates maintenance and automation.

Features: Faster production speed and a straightforward structure allow for mass production needs, though cutting precision is slightly lower than ascending machines.

Support Policies from the Nan'an Municipal Government

The Nan'an Municipal Government has introduced a series of support policies to promote technological innovation and green development in the stone industry, encouraging machinery manufacturing companies to increase R&D and accelerate the development and upgrade of stone multi-wire saw machines. In collaboration with Huaqiao University, the Stone Industry Technology Research Institute was established, which has launched "wire saw" technology, showing remarkable advantages. This technology is expected to increase yield by about 15%, reduce power consumption by about 20%, and decrease noise by approximately 30%. Additionally, the government has implemented the "Measures to Promote the Use of Stone Wire Saws to Increase Production and Efficiency of Stone Enterprises," further reducing stone dust generation and advancing green and low-carbon industrial development.

Innovation Challenges and Directions for Multi-Wire Saw Machines 

Multi-wire saw machines currently face several key technical challenges, each with potential innovation solutions:

Cutting Efficiency and Energy Consumption:

The current cutting wire speed can reach up to 35 meters per second, but hard stones can reduce cutting efficiency and increase energy consumption.

Innovation Direction:

Introduce energy recovery systems to convert kinetic energy generated during cutting into reusable electrical energy; use high-efficiency motors and frequency control technology to optimize power consumption.

Noise and Dust Control:

Noise is kept below 90 decibels during cutting, which meets standards, but prolonged operation may affect operator health, and dust emissions create environmental pressures.

Innovation Direction: Design soundproof covers or use noise-reducing materials, and adopt advanced dust removal systems to lower noise and dust emissions, optimizing the working environment.

Intelligence Level:

The intelligence level of multi-wire saw machines varies, with some achieving automated operation, but overall intelligence levels need improvement.

Innovation Direction:

Integrate Internet of Things technology for remote monitoring and maintenance, and develop intelligent diagnostic systems to detect equipment status in real-time for preventive maintenance and reduced failure rates.

Multi-Axis Speed Coordination:

Servo motor synchronization achieves multi-axis speed coordination, but improvements in control algorithms are necessary to ensure precise axis synchronization.

Innovation Direction:

Develop higher precision multi-axis synchronization control algorithms, with real-time monitoring data, to dynamically adjust axis speeds, reducing cutting errors.

Cutting Wire Tension Control:

Constant wire tension is crucial for cutting quality, typically monitored by tension sensors and maintained by adjusting take-up and pay-off speeds via servo motors.

Innovation Direction:

Implement adaptive tension control systems that utilize AI algorithms to optimize tension parameters in real-time, improving cutting stability and precision.

Wire Speed Optimization:

Current wire speed optimization relies on extensive testing to match different stone characteristics.

Innovation Direction:

Establish a stone characteristics database and utilize machine learning algorithms to automatically generate optimal wire speed curves, reducing manual debugging time and increasing efficiency.

Recommendations and Outlook

With the support policies from the Nan'an Municipal Government and the advancement of industry technology, future multi-wire saw machine equipment is expected to see improvements in performance, efficiency, and environmental protection. We anticipate that next year's equipment will achieve rapid upgrades, meeting market demands with more competitive prices. For enterprises, it is recommended to consider technological maturity and return on investment when purchasing new equipment, selecting products that best meet their needs.

Contact Us

Quanzhou Big Shark Machinery Technology Co., Ltd. specializes in the research and innovation of wire saw machines. We are committed to providing clients with more efficient, environmentally friendly stone processing equipment. We welcome customers interested in multi-wire saw machines to follow our products and offer valuable feedback. We look forward to working with you to advance stone processing technology.