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Ultrasonic Polishing

Ultrasonic Polishing SONOFILE

The ultrasonic polishers apply ultrasonic vibration to tools—such as diamond files, abrasive stones, or ceramic abrasive stones—and realizes fast and effortless polishing work with beautiful finish. They constantly produce intense ultrasonic vibrations, regardless of the thrust force or type of the tool.

Features of SONOFILE

The amplitude of ultrasonic vibration can be adjusted to 15 levels (displayed by 10 lighting levels). The unique amplitude control circuit accurately sustains the predetermined vibration level. The high-performance automatic frequency-tracking circuit automatically detects differences in shape, size, and length of tools, and starts an operation with an optimal frequency. Moreover, the circuit automatically tracks fluctuations caused by wear of a tool.


Stable control with sufficient power

The vibration state can be maintained at a certain level regardless of great, small, or no cutting resistance to tools. Ultrasonic Polishing equipment quickly responds to load fluctuations caused by fast push-and-pull actions of tools so that a stable vibration can be maintained. Operators do not feel any unpleasantness.


One button switch-over mode

Two modes of the “ORDINARY TOOL” mode for all-in-one tools, such as diamond files and the vice-gripping mode for ceramic abrasive stones, can be switched over by one button (SF-5600). The strength of each mode is freely adjustable.


Small but easy-to-use and powerful handpiece

Handles any tools from 1 mm in diameter to 15 mm wide. Features an easy-to-hold size (28 mm diameter) and a well-balanced weight (130 g). This small size hand-piece was designed for excellent durability.


Compatible with narrow rib slot polishing

A tool required for polishing deep and narrow rib slots is prepared as a standard tool. Special tools can also be designed and manufactured.

Process Examples

  • Polishing a rib slot (electric-discharge machined surface)

    Polishing a rib slot (electric-discharge machined surface)

    This is a typical example of using ultrasonic Polishing. Contact the tool with a rib slot sufficiently, and slide it while pressing it softly (minimum slot width, 0.2 mm; depth, 70 mm).

  • Polishing a base surface

    Polishing a base surface

    Although the hand cannot feel it, the tool vibrates ultrasonically. Even a difficult-to-operate surface can be polished by merely sliding the tool over the surface.

  • Mirror finish of a fine part

    Mirror finish of a fine part

    The tool’s favorite operation is lapping of fine parts. Even a toothpick can be an important tool using diamond paste and mild vibration. This tool can also be used for deburring and chamfering.

List of all the SONOFILE Ultrasonic Polishing products



From roughing to finishing, all in one machine!

High-powered polishing machine with the industry's largest output of 100W, enabling grinding with rotary tools & ultra-fine processing with nano-mode.


  • Manual-type hand piece
Combination Transducers  Tool screw diameter  


(Large-sized transducer)

 HP-7401 M8


(Small-sized transducer)

 HP-9701 M6(Comes with M4 adapter)


(Motor handpiece)   

 SF-3500 -
SF-0103 Option
  • Foot switch

    It is a foot switch to switch over ON/ OFF of ultrasonic oscillation and motor hand piece. It turns ON while you are stepping on it.
    Part No. 7116

  • Foot controller

    The rotation speed of the DC motor handpiece can be adjusted. The strength is controlled depending on the degree of depressing the foot controller. (Do not use for ultrasonic control.)
    Part No.7077

  • Transducer connection cable

    The cable to connect old transducers HP-9701/HP-7401 to Oscillator SF-0103
    Model number : 7055
    Applicable Oscillator : SF-0103
    Applicable Transducer : HP-9701 HP-7401




Definite Edition of Simple Ultrasonic Polishing

This model can use M4 and M6 tools


  • Manual-type hand piece
Combination Transducers  Tool screw diameter 


(Small-sized transducer)

 HP-9701        M6(Comes with M4 adapter)