J Morita Tri-Auto Mini Endo Motor


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Description of product


The refined, compact design of Tri Auto mini’s head and body is very small and lightweight. With this handpiece by J MORITA, the dentist can experience the same tactile feedback as manual filing while various automatic controls reduce the risk of file jamming and breakage. Its slim design allows for easy access to posterior teeth with the ability to view both the canal openings and the pulpal floor during instrumentation. Another new and convenient feature is coordinated color change on the LCD display so that the user can easily recognize changes in speed, torque, file tip location, display type, etc. When connected to the Root ZX mini, the position of the file tip is monitored during the procedure, and many automatic functions such as Auto Apical Reverse can be activated.


Small head for excellent visibility

The head is only 9 mm in diameter making it easy to use and ideal for canal treatment. Its slim design allows for easy access to posterior teeth with the ability to view directly of the treatment field.

Automatic controls and settings

The TriAuto mini offers automatic controls for speed, rotation direction and torque that significantly increase the accuracy and safety of root canal treatment.

  • Rotation Direction: Forward and Reverse
  • Torque Reverse: 9 Torque Reverse settings
  • Auto Controls: Auto Torque Reverse and Auto Torque Slow-down

Easy to read LCD display-even for left handed user

The user can easily read off scales, figures and letters from the clear and simple display screen. If the user is left-handed, the display can also be reversed for their convenience.

Backlight color distinguishes type of displays

Display changes color: When linked to Root ZX mini, the display changes depending on the location of the file tip inside the canal to warn you and promote safe instrumentation.

Wide speed range

Eleven speed settings are available from 50 rpm to 1,000 rpm. This is extremely convenient for different types of files and varying treatment needs.

Programmable settings

The combinations for speed, torque and other settings can be programmed. Simply select one of the six memory numbers to switch from one combination to another.

Module system

The appliance is upgraded with a measurement function if the TriAuto mini is connected to the Apex locator Root ZX mini via data transfer cable. With this, safety functions are made available which prevents over-preparation.

Key Specifications

Tri Auto mini Handpiece

  • Display: LCD
  • Weight: 78 g
  • Motor: 50 – 1,000 rpm
  • Torque: 3.9 Ncm
  • Battery (rechargeable): 3.7 V lithium-ion
  • Diameter: 28 mm / Height: 150 mm


Product name

TriAuto mini



Torque (N/cm)


Torque Reverse Settings (N/cm)

0.2, 0.4, 0.6, 0.8, 1.0, 1.5, 2.0, 2.5, 3.0

Speed Range (no load( (rpm)

50±5 - 1,000 ±100

Drive Mechanism

Electric Motor

Display Type


Cutting Tool Grip Type

Push Button Latch Type


Motor Handpiece: W 28 mm x H 27 mm x L 195 mm
Head: Diameter 9 mm x H 11 mm


100 g, including contra-angle and lithium batteries

Power Supply (battery)

3,7 V (lithium ion battery, rechargeable)

Electric Shock Protection Class

Internal power supply

Electric Shock Protection Degree

BF applied device


W 68 mm x D 108 mm x H 85 mm


350 g

Power Supply

AC 230 V



Power Consumption


Electric Shock Protection Class

Class II

Electric Shock Protection Degree



Regulated Medical Device (Class II)
Special Maintenance Regulated Medical Device

  • 1 Handpiece, incl. contra-angle handpiece
  • 1 battery
  • battery charger

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