SJ125 Lab Handheld Diamond Wire Saw
1. The handheld diamond wire saw combines the ease of operation of a traditional wire saw with the extreme cutting power of electroplated diamond wire.
2. The manual diamond wire saw is designed for rapid manual cutting in laboratories and factories, providing a perfect solution for rough cutting of ultra-hard and ultra-brittle materials such as irregular crystals, advanced ceramics, and geological rocks.
3. When extremely high surface finish is not required, the SJ125 offers extremely high cutting speeds, portability, and convenience without the need for complex mechanical setups.
- Shenyang Kejing
- Shenyang, China
- 22 working days
- 50 sets
- Information
Product Specifications:
| Product Name | SJ125 Handheld Diamond Wire Saw |
| Product Model | SJ125 |
| Key Features | 1. The diamond wire blade is easy to replace. 2. Manually operated; simple to use. |
| Technical Parameters | 1. Saw Bow: Aluminum alloy 2. Diamond Wire: Diameter Ø0.3mm, Ø0.42mm; Length 125mm |
| Product Specifications | Dimensions: 270mm × 90mm × 25mm; Weight: 0.3kg |
| Standard Accessories | Components: Saw bow, wire mounting fixture, diamond wire |
Key Features and Benefits of the Manual Diamond Wire Saw:
Strong Cutting Power: Utilizes high-quality electroplated diamond wire, easily cutting some of the hardest materials in materials science and geology.
High-strength aluminum alloy frame: The saw bow is made of high-quality aluminum alloy, ensuring its extreme lightness (weighing only 0.3kg), effectively reducing hand fatigue; at the same time, it possesses sufficient rigidity to maintain strong and constant tension on the diamond wire.
Quick and easy wire change operation: Equipped with a user-friendly clamping system. Changing worn diamond wire or switching to different diameter wires takes only seconds, minimizing downtime.
Extreme versatility: The aluminum alloy manual wire saw is compatible with diamond wires of different diameters to meet various kerf width requirements and cutting needs of different material types.
High-performance solution: It is an indispensable low-cost auxiliary tool in any laboratory, ideal for quick and simple roughing and shaping before precision machining.

Packing List: Each SJ125 small diamond wire cutting saw comes fully equipped and ready to use out of the box:
1 × Aluminum Alloy Saw Frame
1 × Diamond Wire Clamping Device
Standard configuration: Electroplated diamond wire
Recommended Applications for the Small Diamond Wire Cutting Saw:
Ideal for researchers and technicians working on:
Geological and meteorite sampling
Ceramic substrates and tubing
Crystal rods (ingots)
Glass and optical components
Any ultra-hard/ultra-brittle material requiring rapid manual shaping and cutting.
Applications:
As a versatile and cost-effective manual cutting tool, the SJ125 is ideal for laboratories, educational institutions, and various workshops handling ultra-hard and ultra-brittle materials. Its main applications include:
Geological and Mineral Sampling: Rapid rough cutting of rocks, meteorites, and ores before precision slicing.
Advanced Ceramic Machining: Dimensional cutting of alumina, zirconia, and piezoelectric ceramics by hand without thermal damage.
Crystallography Research: Slicing irregularly shaped crystal rods (ingots), silicon carbide (SiC), sapphire, and quartz.
Glass and Optical Materials: Rough machining and dimensional determination of optical glass and quartz tubes, suitable for applications where a highly polished surface is not immediately required.
Educational Demonstration: Ideal for university materials science labs, providing a quick and safe manual demonstration of the fundamental principles of abrasive cutting.
FAQ:
Q1: What materials should I AVOID cutting with this diamond wire saw?
A: While excellent for hard and brittle materials, you should avoid cutting soft, gummy, or highly ductile metals (like pure copper, aluminum, or plastics). Soft materials will clog the electroplated diamond particles on the wire, significantly reducing its cutting efficiency and lifespan.
Q2: How do I maintain the correct wire tension?
A: The SJ125 features a rigid aluminum alloy bow and an adjustable clamping fixture. Simply insert the 125mm wire into the clamps, pull it taut, and tighten the fixtures. The high-strength frame will maintain a strong, consistent tension to prevent wire bowing or snapping during manual cutting.
Q3: Does the saw come with diamond wires, and can I buy replacements?
A: Yes, the saw comes standard with electroplated diamond wire ready for immediate use. Because diamond wire is a consumable, we offer replacement packs in diameters of Ø0.3mm and Ø0.42mm (125mm length). We recommend ordering spare wire along with the saw.
Q4: Do I need to use a liquid coolant when cutting manually?
A: For quick, small cuts, dry cutting is generally acceptable. However, for thicker or harder materials, adding a few drops of water or cutting fluid to the kerf (cutting groove) will help flush away debris, keep the wire cool, and significantly extend the life of the diamond wire.
Equip your lab with this indispensable cutting tool.
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