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Paraffin block Trimmer 


Paraffin Block Trimmer

The Paraffin Block Trimmer ( generally called Wax Trimmer, Paraffin Trimmer, Wax Remover, Paraffin Remover, Dewaxer etc) is one of the histology equipment using for the research.

The Paraffin Block Trimmer enables the researchers to trim the paraffin blocks automatically. This instrument removes only paraffin residues around the paraffin blocks without damage to the tissue samples or the plastic cassette.

When users load the paraffin blocks finished the embedding process, the blocks moves to trim the paraffin residues into the instrument and the trimmed block is discharged from the outlet of the instrument.

Eventually, this instrument also enables to save the research time and to prevent the users from any injuries caused by the conventional trimming way.


Features :

  • Save labor time of researchers
  • Protect researchers from any physical damages which may be caused by conventional trimming tools.
  • Max. 800 paraffin blocks can be trimmed in an hour.
  • Semipermanant life time of trimming modules
  • Check trimmed block quantity on the LCD.
  • LCD shows the status of trimming process
  • Accept the various kinds of embedding cassettes

How to use

• Check the power line connection . Turn on the main power switch located at the bottom of left side. Then “Stand by / Press START” will appear on the LCD display.

• Press Start button to initialize the trimmer. Then “UNITMA CO., LTD. / Initializing…” will appear on LCD display shortly, followed by “Stand by / Pls load blocks”.

• When the conveyor belt starts moving, please load blocks to trim blocks. Then, “Running / Block count: xx” will appear in the LCD panel. Trimmed blocks will come out of the outlet. When there is no more block to loaded, the trimmer will trim the previously loaded ones and stop.

• In order to continue trimming, press Start and continue to load blocks afterward.

• When the required blocks are finished, turn the main switch off

Paraffin Blocks
Before Trimming After trimming
(Before Trimming), (After Trimming)


• In case of the temporary stop required, press Pause button. When a user wants to start trimming again, press Start button.

• In case of emergencies, press Emergency button. Then the trimmer will stop instantly. When the problem is solved, restart the trimmer by turning Emergency button clockwise.

• In case which a block is loaded in the improper direction on the tray, short beeps will repeat and the trimmer will stop with showing “ Stand by / Change direction ” on LCD display. Please change the direction of the block and load it again to continue trimming

• When the conveyor belt or the trimming module is jammed by the deviated blocks from the tray or other foreign materials. ” Check Trimmer / Remove Block ” will appear on the LCD display with the long beeps repeatedly. Please open the front door and clear the trouble

• When the trash box is full of the paraffin debris, three short beeps will repeat and “ Clean Trash box ” will appear. Then, please take the trash box out and empty it


List Description

Nominal Power supply voltages Switchable Voltage (100 to 240 V)

Nominal supply current 4.5 A @ 30V

Nominal frequency 50 / 60 Hz

Weight (net) 50 kg

Max Size (W x D x H) 725 x 325 x 470 mm

Operating temperature range Room temperature

Transportation/storage temperature range Room temperature

Relative humidity Max. 80% non-condensing

Humidity during transportation/storage < 80%

Operating control SW MICOM (PIC) type

Monitor LCD panel (70 x 25mm), Dot Matrix type

Trimming capacity about 800 blocks per hour

Operating environment Indoor use only

Main voltage fluctuation 100V to 240V 10%

Certification / Approval ISO / CE / FCC


Ordering Information

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