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Use accurate torque controls to improve quality! Case examples can be found in torque handbook 10

Semi-automatic AirtorkNEW

AC3

Power Torque Wrench/Assembly
RoHS markingSocket insertion part□9.53Socket insertion part□12.7

Assembly

Angle

Pneumatic

Graduation

Trigger

Pneumatic motor mounted on torque wrench, for work from provisional tightening to final tightening using just the one tool.

ACLS100N3 [Overall length: 333.5mm]

AC50N3 [Overall length: 293mm]

Left: Turning with an ordinary socket                Right: Turning with an anti-vibration socket

The ACQSPFD3, which is able to transmit tightening torque data wirelessly, can be custom modified upon order. Please contact Tohnichi for details.

Application

  • For assembly and mass-production.

Features

  • The AC3 series semi-automatic Airtork can be used with anti-vibration sockets for impact wrenches. This reduces vibrations during turning, and improves work efficiency.
  • A3 series high provisional tightening torque type
  • Regular tightening tasks using an impact wrench plus a torque wrench become part of a single process, greatly improving task efficiency.
  • Provisional tightening is applied using the air motor operation, and completed in high accuracy by manual torque wrench operation.
  • Final tightening is done with the torque wrench, so fluctuations in air pressure will not affect applied tightening torque.
  • Changing tightening torque is simple: just turn the knob to adjust the N•m scale.
  • Easy calibration with torque wrench tester
  • LS version comes with limit switch. Thich creates error-proofing (Pokayoke) system when used with CNA-4mk3 count checker (sold separately).
  • Except for some products, the AC3/ACLS3 series are compliant with ISO 6789:2017 starting January 2022. For more information, see the technical data “Initiatives for ISO 6789:2017” at the bottom of the screen.

Demonstration video

The AC3 Semi-Automatic Airtork

Specifications

S.I. MODEL AC25N3 AC50N3 AC100N3 AC180N3
TORQUE RANGE
[N・m]
MIN. - MAX. 5 - 25 10 - 50 20 - 100 40 - 180
GRAD. 0.25 0.5 1 2
METRIC MODEL AC250M3 AC500M3 AC1000M3 AC1800M3
TORQUE RANGE
[kgf・cm]
MIN. - MAX. 50 - 250 100 - 500 200 - 1000 400 - 1800
GRAD. 2.5 5 10 20
AMERICAN MODEL AC200I3-3/8 AC400I3-3/8 AC800I3-3/8 AC75F3-3/8 AC130F3-1/2
TORQUE RANGE
[lbf・in/lbf・ft]
MIN. - MAX. 50 - 200lbf・in 100 - 400 200 - 800 15 - 75lbf・ft 30 - 130
GRAD. 2.5lbf・in 5 10 1lbf・ft 2
PROVISIONAL TIGHTENING TORQUE [N・m] 11 15 15
FREE ROTATION [r.p.m.] 950 900 800
APPLICABLE BOLT COMMON STEEL (M7) M8 M10 M12
HIGH TENSION M6 M6,(M7) M8 M10
MAX. HAND FORCE P [N] 125.9 251.9 420.2 450
RATED AIR PRESSURE [Mpa] 0.5
AIR MASS FLOW [m3/min] 0.33 0.39 0.22
DIMENSION
[mm]
EFFECTIVE LENGTH 198.5 238 400
OVERALL LENGTH L’ 293 334 488
OVERALL HEIGHT 92.8 105.2 107.7 124.5
HEAD 16 17 20.5
SQ. DRIVE □a 9.53 12.7
20.9 24.9 26.4
10.4 10.1 10.9 12.2
ΦD 12 16
LS
WEIGHT [kg] 1.5 2.0 3.3
LIMIT SWITCH WITHOUT
                ACCURACY ±3%
                 
S.I. MODEL ACLS25N3 ACLS50N3 ACLS100N3 ACLS180N3
TORQUE RANGE
[N・m]
MIN. - MAX. 5 - 25 10 - 50 20 - 100 40 - 180
GRAD. 0.25 0.5 1 2
METRIC MODEL ACLS250M3 ACLS500M3 ACLS1000M3 ACLS1800M3
TORQUE RANGE
[kgf・cm]
MIN. - MAX. 50 - 250 100 - 500 200 - 1000 400 - 1800
GRAD. 2.5 5 10 20
AMERICAN MODEL ACLS200I3-3/8 ACLS400I3-3/8 ACLS800I3-3/8 ACLS75F3-3/8 ACLS130F3-1/2
TORQUE RANGE
[lbf・in/lbf・ft]
MIN. - MAX. 50 - 200lbf・in 100 - 400 200 - 800 15 - 75lbf・ft 30 - 130
GRAD. 2.5lbf・in 5 10 1lbf・ft 2
PROVISIONAL TIGHTENING TORQUE [N・m] 11 15 15
FREE ROTATION [r.p.m.] 950 900 800
APPLICABLE BOLT COMMON STEEL (M7) M8 M10 M12
HIGH TENSION M6 M6,(M7) M8 M10
MAX. HAND FORCE P [N] 125.9 251.9 420.2 450
RATED AIR PRESSURE [Mpa] 0.5
AIR MASS FLOW [m3/min] 0.33 0.39 0.22
DIMENSION
[mm]
EFFECTIVE LENGTH 198.5 238 400
OVERALL LENGTH L’ 293 334 488
OVERALL HEIGHT 92.8 105.2 107.7 124.5
HEAD 16 17 20.5
SQ. DRIVE □a 9.53 12.7
20.9 24.9 26.4
10.4 10.1 10.9 12.2
ΦD 12 16
LS 44.5 76.5 174.5
24 25
WEIGHT [kg] 1.7 2.2 3.5
LIMIT SWITCH WITH
                ACCURACY ±3%
Notes

Limit switch specification is AC/DC 30V below 1A.

Length of standard LS curly cord (when extended): Approx. 2m

The AC3/ACLS3 series are compliant with ISO 6789:2017 starting January 2022. Calibration Certificates will be different from older products. American unit products are not compliant with ISO 6789:2017.

Dimensions

AC25N3~100N3

AC180N3 and ACLS180N3

ACLS25N3~100N3

◆ How to order

[Tohnichi] [Model] Please specify.

[Example 1] Tohnichi AC25N3

[Example 2] Tohnichi ACLS100N3

 

◆ Things to remember when ordering

AC model: High provisional torque

Use pneumatic sockets only.

 

Alternative product

Optional Equipment

AUR

Testers, checkers, calibration kits

DOT

TF

Download

Product Catalog

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You must be a registered member to download the following files.

Registration
Manuals

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Software

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Parts List

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Online Part Search System
How to Use
Piping/Air pressure and operating range

Japanese English Chinese German

Calculating the compressor capacity.

Japanese English Chinese German

Differences between adjustable, preset and pre-lock torque wrenches

Japanese English Chinese German

Technical Data
4. Tightening Reliability

Japanese English Chinese German

5. Selection of Tightening Tools

Japanese English Chinese German

6. Torque Tools are Measurement Equipment

Japanese English Chinese German

[September 2024 Version] Everything from torque controls to Tohnichi’s Tightening Guarantee System

Japanese English Chinese German

Initiatives for ISO 6789:2017

Japanese English Chinese German

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