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Tohnichi AUR-mk2 Unitorque



Specifications

SKU: Tohnichi AUR-mk2 Unitorque

Tohnichi AUR-mk2 Unitorque 
 

High speed, high-precision tightening, and torque adjustment are easy with the scale. The AUR was upgraded to the AUR-mk2 in July 2025.

AUR25N-mk2

AUR25N-mk2

AUR5N-mk2

AUR5N-mk2

 

 

Application

  • For fastening plastic and tapping screws. For assembly and mass production.

Features

  • High speed tightening with trigger activated precision torque.
  • The internal structure has been improved from the previous model to increase robustness. There are no major changes in specifications or dimensions.
  • Torque setting is easy to adjust by knob and scale.
  • Torque remains stable regardless of fluctuations in air pressure.
  • Small reaction force when set torque is reached.
  • LS version available with limit switch, which creates tightening assurance system when used with CNA-4mk3 count checker.

Specifications

                Accuracy ± 5%
S.I. MODEL AUR5N-mk2 AUR12.5N-mk2 AUR25N-mk2 AURLS5N-mk2 AURLS12.5N-mk2 AURLS25N-mk2
TORQUE RANGE
[N・m]
MIN. - MAX. 2 - 5 5 - 12.5 10 - 25 2 - 5 5 - 12.5 10 - 25
GRAD. 0.1 0.25 0.5 0.1 0.25 0.5
METRIC MODEL AU50R-mk2 AU125R-mk2 AU250R-mk2 AU50RLS-mk2 AU125RLS-mk2 AU250RLS-mk2
TORQUE RANGE
[kgf・cm]
MIN. - MAX. 20 - 50 50 - 125 100 - 250 20 - 50 50 - 125 100 - 250
GRAD. 1.0 2.5 5.0 1.0 2.5 5.0
AMERICAN MODEL AU50R-A-mk2 AU125R-A-mk2 AU250R-A-mk2 AU50RLS-A-mk2 AU125RLS-A-mk2 AU250RLS-A-mk2
TORQUE RANGE
[lbf・in]
MIN. - MAX. 15 - 45 37.5 - 112.5 75 - 225 15 - 45 37.5 - 112.5 75 - 225
GRAD. 1.0 2.5 5.0 1.0 2.5 5.0
LIMIT SWITCH WITHOUT WITH
FREE ROTATION [r.p.m.] 2100 800 400 2100 800 400
APPLICABLE BOLT COMMON STEEL M5,M6 (M7)M8 M10 M5,M6 (M7)M8 M10
HIGH TENSION M4(M4.5) M5,M6 (M7)M8 M4(M4.5) M5,M6 (M7)M8
AIR PRESSURE [MPa] 0.5
AIR MASS FLOW [m³/min] 0.9
FASTENING AIR MASS FLOW [m³PC] 0.008 0.02 0.04 0.008 0.02 0.04
MIN. HOSE INNER DIA. [mm] φ11
DIMENSION
[mm]
OVERALL LENGTH L1 222 229 222 229
OVERALL WIDTH L2 64 142 64 142
OVERALL HEIGHT L3 185
AIR INLET R(PT)3/8
WEIGHT [kg] 1.5 1.7 1.5 1.7
ACCESSORY PHILLIPS BIT #3 #3
                 
                 
Notes

Counterclockwise has no torque control.

Standard accessory

Torque adjusting key/M3 HEX key/Support handle and W12 open-ended wrench for AUR25N-mk2 and AURLS25N-mk2

Dimensions

AUR-mk2

AUR(LS)5N-mk2

 
REMARK

SW with limit switch has a rating of AC30V, DC30V, below 1A.



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