SG20-R

Vimfun SG20-R Oscillating Diamond Wire Saw is a high-precision cutting system designed for processing super hard and brittle materials, especially magnetic materials such as NdFeB and SmCo magnets.

Based on the proven SG20 platform, the SG20-R introduces an innovative swing axis (oscillating axis) that allows the workpiece to oscillate during cutting or rotate continuously up to 360 degrees. This unique motion significantly improves cutting stability and efficiency when processing difficult materials.

Key Features

1,Oscillating Cutting Technology

The SG20-R is equipped with a swing axis that allows the workpiece to oscillate during cutting

2,360° Rotary Workpiece Motion

In addition to oscillation, the SG20-R can also be configured to rotate the workpiece up to 360 degrees during cutting.

3, Endless Diamond Wire Technology

The SG20-R uses Vimfun’s endless diamond wire system, where a closed-loop diamond wire runs continuously in a single direction.

No.

Parameter

Technical Specification

1

Worktable Size  (mm)

200*200

2

Max Workpiece Height (mm)

220

3

Worktable Y-Axis Travel (mm)

200

4

Worktable Z-Axis Travel (mm)

220

5

Diamond Wire Length (mm)

Approximately 1797

6

Diamond Wire Diameter (mm)

0.35-1.0

7

Guide Wheel Specifications

Diameter 260 mm

8

Number of Guide Wheel Grooves

3

9

Diamond Wire Linear Speed (m/sec)

Max 58

10

Drive Motor Power (kW)

 1.5

11

Max Drive Motor Speed (RPM)

4500

12

Worktable Y-Axis Minimum Feed (mm)

0.01

13

Worktable Z-Axis Minimum Feed (mm)

0.01

14

Worktable Y-Axis Repeatability (mm)

±0.01

15

Worktable Z-Axis Repeatability (mm)

±0.01

16

Manual Movement Speed (mm/min)

0~1000 mm/min(adjustable)

17

Cutting Speed (mm/min)

0~1000 mm/min(adjustable)

18

Irregular Shape Cutting Ability

None

19

Power Supply (Three-Phase Five-Wire)

220V 60Hz

20

Equipment Dimensions (L×W×H)(mm)

Approximately 1044×943×1810

21

Total Weight (kg)

Approximately  560

Video of How SG20-R works

Key Features description

Oscillating Cutting Technology

The SG20-R is equipped with a swing axis that allows the workpiece to oscillate during cutting. This oscillating motion continuously changes the contact area between the diamond wire and the material, reducing localized wear and improving cutting efficiency.

This feature is particularly beneficial when processing super hard materials or magnetic materials, where stable cutting conditions are essential.

360° Rotary Workpiece Motion

In addition to oscillation, the SG20-R can also be configured to rotate the workpiece up to 360 degrees during cutting. This capability enables flexible machining of cylindrical or irregular shapes while maintaining uniform cutting conditions.

The rotary function is especially useful for applications such as magnet block cutting, cylindrical component slicing, and precision material preparation.

Endless Diamond Wire Technology

The SG20-R uses Vimfun’s endless diamond wire system, where a closed-loop diamond wire runs continuously in a single direction. This design eliminates the reversing motion found in traditional wire saws.

Advantages include:

  • higher cutting speed

  • lower vibration during machining

  • smoother cutting surfaces

  • longer wire lifetime

This technology makes the SG20-R a highly stable diamond wire cutting machine for hard materials.

High Precision Cutting Performance

The machine is designed with precision linear guides, stable tension control, and advanced motion control systems. These features ensure accurate feeding and stable cutting performance, allowing manufacturers to achieve tight dimensional tolerances.

The stable cutting mechanism also helps produce smooth surfaces with minimal chipping, reducing the need for additional grinding or polishing processes.Efficient Processing of Magnetic Materials

Magnetic materials such as NdFeB magnets and SmCo magnets are extremely hard and brittle, making them difficult to machine using conventional cutting tools.

The SG20-R oscillating diamond wire saw provides a highly effective solution for these materials by combining oscillating cutting motion with precision wire cutting, significantly improving cutting stability and productivity.

Flexible Material Compatibility

The SG20-R is suitable for cutting a wide range of hard and brittle materials, including:

  • NdFeB magnets

  • SmCo magnets

  • Advanced ceramics

  • silicon carbide ceramics

  • graphite materials

  • optical materials

  • composite materials

This versatility makes the machine suitable for both industrial manufacturing and research applications.

Why Choose the SG20-R Oscillating Diamond Wire Saw

Compared with conventional cutting technologies, the SG20-R provides several key advantages:

  • improved cutting stability for super hard materials

  • longer diamond wire life

  • reduced cutting force and vibration

  • better surface quality

  • flexible oscillating and rotary cutting capability

These advantages make the SG20-R an ideal solution for companies working with magnetic materials, advanced ceramics, and other difficult-to-machine materials.

Why Many Manufacturers Are Switching to Diamond Wire Cutting

Many manufacturers previously used ID saw (inner diameter saw) for slicing hard and brittle materials. While this technology has been widely used for many years, modern materials such as magnetic materials, sapphire, and advanced ceramics require higher precision and better material utilization.

Today, more manufacturers are switching to diamond wire cutting technology, which provides lower cutting stress, narrower kerf loss, and more flexible machining capabilities.

Key Technology Differences

FeatureID Saw (Inner Diameter Saw)Diamond Wire Saw
Cutting ToolCircular blade with diamond edgeContinuous diamond wire loop
Cutting MotionRotating blade slicingHigh-speed wire grinding
Kerf Width0.5 – 1.0 mmAs low as 0.35 mm
Cutting StressHigherLower
Surface QualityMay require more finishingSmoother surface
Cutting FlexibilityMainly straight slicingSlicing, contour, multi-axis cutting
Material UtilizationLowerHigher
Vimfun Diamond Wire Saw Machine
What materials can the SG20-R diamond wire saw cut?
The SG20-R is designed to cut a wide range of hard and brittle materials, including NdFeB magnets, SmCo magnets, advanced ceramics, graphite, and other difficult-to-machine materials. It is especially effective for magnetic material cutting applications.

Magnetic materials such as NdFeB and SmCo are extremely hard and brittle. The SG20-R features an oscillating workpiece axis, which distributes the cutting force along the diamond wire and reduces localized stress. This improves cutting stability and surface quality.

The oscillating motion continuously changes the contact point between the diamond wire and the workpiece. This helps:

  • reduce wire wear

  • improve cutting efficiency

  • increase cutting stability

  • extend diamond wire lifetime

This is particularly useful when cutting super hard materials.

Yes. The SG20-R allows the workpiece to oscillate or rotate up to 360 degrees during cutting. This flexibility enables more stable cutting conditions and allows the machine to process different shapes and material sizes.
The equipment has minimal environmental requirements, features a small footprint, is lightweight, and operates on standard 220V domestic power. It’s incredibly convenient.
We offer a comprehensive warranty and 24/7 technical support post-purchase to ensure your machine operates at peak efficiency and any issues are resolved promptly.

Yes. The SG20-R is suitable for both industrial production and research laboratories. Its flexible cutting motion and high precision make it ideal for material testing, prototype development, and sample preparation.

Traditional wire saws use kilometers-long wires moving back and forth, which require direction changes and tension adjustments.
The Vimfun endless wire saw eliminates this by using a short closed loop that moves continuously in one direction.
This improves cutting efficiency, extends wire life, and produces a cleaner, more precise cut.

Operators should wear protective glasses and gloves and ensure the cutting chamber is enclosed.
Always check wire integrity before startup.
Vimfun machines include emergency stop functions and speed monitoring for safety assurance.
Yes. Vimfun provides customized cutting systems and OEM solutions for different material sizes and production scales.
Engineering teams can adjust wire length, machine size, and automation level based on client requirements.
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