Total Load System Automatic Polishing Machine Rana-30

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A powerful automatic grinding machine equipped with a safe double start button function.
Rana-30 can work efficiently with the memory function of 16 polishing conditions and ABC setting (operation during polishing can be set in 3 stages).

Main Specifications

  • The Rana-30 is a powerful desktop polishing machine that utilizes a total load system. With a 750W servo motor for the polishing area and a 120W brushless motor for the specimen rotation area, the Rana-30 is capable of providing high-torque and disc rotation speeds of up to 400rpm with a maximum pressure of 400N.
  • Up to φ310mm grinding discs can be attached Because it is a desktop machine, the Rana-30 can take grinding discs up to φ310mm
  • Safety-conscious design with double start-button function The Tana-30 is designed with safety in mind, requiring the buttons on the left and right of the head to be pressed simultaneously for starting.
    This prevents accidents such as objects becoming entangled in the machine.
  • Optional Accessories (Ex.) Leveling Machine Specimen Holder
    (Ex.) Leveling Machine Specimen Holder
  • Polish without losing parallelism With the recommended polishing method, the holder and disc should rotate at the same speed and in the same direction in order to perform grinding with no loss po parallelism in the workpieces.
    Rana-30 allow the rotation speed of the holder to be changed, which makes it possible to grind workpieces in the same direction and at the same rotation speed with no loss of parallelism.
    In addition, the disc and holder rotation can be reversed, allowing for easy hand polishing even for left-handed users.
    Grinding: SiC paper or polishing pad
    Disc rotation speed: 200rpm/Holder: 200rpm
    Fine polishing: DIA +polishing cloth
    Disc rotation speed: 65 to 150rpm/ Holder: 65 to 150rpm
  • Automatically increase/reduce pressure for the set number of seconds Rana-30 can automatically increase or reduce the pressure applied to a specimen.
    This function can be configured to increase pressure gradually for the set number of seconds from start.
    The settings can also be configured to increase or decrease pressure gradually at the set number of seconds.
  • Change polishing conditions(pressure, rotation speed) in two steps! Two different movements can be programmed to a single polishing process to enable variations.
    for example. With fragile material and material with sharp edges, operation can start at low pressure and low speed, gradually increasing to a higher pressure and higher speed.
  • Memory for up to 16polishing conditions! Up to 16 polishing conditions can be programmed.
    When preparing more than one specimen, polishing conditions can be set for each specimen, allowing fore efficient operation.

Power Supply 3-phase 200 to 220V, 50/60Hz
Dimensions/Weight W600×D745 (to drainage opening) ×H675mm/ 105kg

Polishing Area

Disc Size Grinding disc: φ250mm, φ305mm
Polishing disc: φ250mm, φ300mm
Magnetic disc: φ250mm, φ300mm
discs sold separately
Disc Rotation Speed 50 to 400rpm(forward/reverse switchable)
Motor Output 750W servo motor
Operation (Water proof type) Touch panel, emergency stop button incl.
Automatic polishing state by pushing the buttons(on the left and right of the head)
storage of up to 16 polishing conditions
ABC setting(3 configurable polishing condition steps)

Specimen Rotation Area

Holder Rotation 50 to 200rpm(forward/reverse switchable)
Motor Output AC120W brushless motor
Specimen Holder Standard: φ165mm (up to φ200mm)(optional)
Tear drop type: φ10 to 40mm ×6 specimens, Rectangular hole: ×3
Production of other custom sizes is possible.
(holder sold separately)
Applied Pressure 50 to 400N
Lubricator Auto drip function (interval and amount adjustment possible)
Primary Air Source Required(0.5 to 0.7MPa)
Separate regulator also required for sources above 0.7MPa)


Osaka Officemap
2F, 3F, 4-9-45 Minamihorie, Nishi-ku,
Osaka city, Japan 550-0015


Nagoya Officemap
Yoshitaka Bldg. 1F,
1-902 Kamiyashiro, Mito-ku,
Nagoya city, Aichi, Japan 465-0025


Tokyo Officemap
Suehiro JF Bldg. 7F,
5-1-5 Sotokanda, Chiyoda-ku,
Tokyo, Japan 101-0021


Wakayama Head Officemap
1333 Nishinoji, Inami-cho,
Hidaka-gun, Wakayama 649-1528


Room917, No555,
West Zhongshan Road,
Oasis Tower, Shanghai