Diamond wire saw SG 40

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High-Precision Diamond Wire Saw – Ideal Replacement for Inner Diameter Saw


Model: SG 40 Gantry-Type Endless Diamond Wire Cutting Machine
The SG 40 Diamond Wire Saw is a high-precision cutting solution designed for silicon, glass, sapphire, quartz, jade, and other hard or brittle materials.
With its advanced endless diamond wire technology, the SG 40 can perfectly replace traditional inner diameter (ID) saws, delivering higher efficiency, better surface quality, and easier operation.


Why Replace Inner Diameter Saw with SG 40?
Conventional ID saws often face limitations in:

Cutting speed and productivity

Tool wear and high consumable cost

Surface finish consistency

Flexibility for different materials and sizes

The SG 40 overcomes these challenges by using a high-speed endless diamond wire combined with a stable gantry structure, providing a more modern and efficient cutting method.




High-Speed Endless Diamond Wire Cutting Technology
The SG 40 uses a closed-loop (ring-shaped) diamond wire as the cutting tool.
By forming the wire into an endless loop, the cutting wire moves continuously in one direction, without reversing.
This design enables:
With wire diameters ranging from 0.35 to 0.65 mm, the SG 40 achieves high precision cutting with minimal material loss, making it ideal for high-value materials.




Stable Gantry Structure – Top-to-Bottom Cutting
The SG 40 adopts a rigid gantry structure, with the cutting wire moving from top to bottom, ensuring stable and uniform cutting force throughout the process.
Key advantages include:

Excellent mechanical rigidity and cutting stability

High repeatability for batch slicing

Reliable performance for both hard and brittle materials

Simple Loading, Reduced Labor Requirement
One of the practical advantages of the SG 40 is its easy and safe workpiece loading method.

The workpiece only needs to be glued onto the loading table

After the wire cuts through the material, the workpiece remains stable and does not fall

No continuous operator supervision is required during cutting

Once the cutting program is completed, the machine can run unattended, making it suitable for overnight processing and significantly reducing labor cost.




Flexible Configuration for Different Production Needs

Suitable for both R&D and production environments

Available in different size configurations, including smaller models with the same structure

Easy program setup and stable automatic operation

Multiple Diamond Wire Options for Optimized Cutting
The SG 40 supports three types of diamond wire loops, allowing users to choose the most suitable wire according to material and process requirements:

Full Coating Wire – uniform cutting, excellent surface finish

Segment Coating Wire – higher cutting efficiency and longer wire life

Thread Coating Wire – optimized chip removal and stable cutting for specific materials

Each wire type offers unique advantages, helping users achieve the best balance between speed, surface quality, and tool life.




Typical Applications

Silicon and semiconductor materials

Optical and technical glass

Sapphire and quartz components

Jade and other precious hard materials

Precision slicing and material preparation

Upgrade Your Cutting Efficiency Today
If you are looking for a modern, efficient, and reliable alternative to inner diameter saws, the SG 40 Diamond Wire Saw is an ideal choice.
It offers:

Higher cutting speed

Better surface finish

Lower consumable and labor cost

Simple operation with excellent precision

Contact us now to discuss your material type, cutting size, and production goals.
Customized solutions and cutting trials are available upon request.