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Tightening assurance system (Pokayoke)

Human tightening errors are the most common cause of trouble involving bolt tightening. We supply wired and wireless devices designed to prevent human tightening errors by controlling tightening count, and marking devices that automatically leave evidence on the heads of bolts and small screws indicating they have been tightened properly to the set torque.

Tightening assurance system (Pokayoke)

AC3

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

For assembly and mass-production.
Tightening assurance system (Pokayoke)

CNA-4mk3

The error-proofing (Pokayoke) counter controls the number of tightening operations to prevent human tightening errors.

For tightning count verification, and production management.
Tightening assurance system (Pokayoke)

FH256MC

Wireless wrench system prevents human tightening errors.

Ideal for torque verification assembly processes.
Tightening assurance system (Pokayoke)

RTDLS/RNTDLS

Error-proofing (Pokayoke) torque driver with limit switch output to eliminate missed tightening.

Pokayoke (tightening error-proof)
Tightening assurance system (Pokayoke)

A3

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

For assembly and mass-production.
Tightening assurance system (Pokayoke)

I/O-FH256

Manage 4 tightening signals from receiver and output to external device.

Maximum 4 contacts selectable from R-FH256.
Tightening assurance system (Pokayoke)

MCSP

Interchangeable open end head marking torque wrench. When the set torque is reached, the wrench automatically leaves a mark on nuts (bolts) to provide evidence of proper tightening.

Nut torque control.
Prevents human tightening errors (Pokayoke).
Tightening piping on hydraulic / pneumatic devices.
Construction projects involving electrical / telecommunication / power facility / air-conditioning equipment / natural gas installations; etc.
Tightening assurance system (Pokayoke)

RTDFH / RNTDFH

Wireless, and designed to prevent human tightening errors.

Pokayoke (tightening error-proof)
Tightening assurance system (Pokayoke)

MNTD

A world first! When the set torque is achieved, it automatically marks evidence of proper tightening on the heads of small screws and bolts. It determines whether tightening has been missed by detecting the presence or absence of marks, at the end of the manufacturing process and after shipping. MNTD series Error-proofing (Pokayoke) torque drivers mark small screws and bolts after tightening, as a human tightening error countermeasure.

Torque control for bolts and screws
Prevents human tightening errors (Pokayoke)
Tightening assurance system (Pokayoke)

SB-FH256

Make/change setting on group channel, ID, etc. for FH wireless torque wrenches.

Make/change setting on group channel, ID, etc. for FH wireless torque wrenches.
Tightening assurance system (Pokayoke)

FD/FDD

Wireless transfer of tightening torque data at the time of clicking. Immediate pass/fail decision offers highest level of workability. FDD facilitates tightening work with even higher reliability backed by two rounds of tightening detection function.

Tightening Torque Data Management
Pokayoke (tightening error-proof)
Tightening assurance system (Pokayoke)

R-BT

Bluetooth Receiver receives tightening completion signals from battery-operated HAC series semi-automatic torque wrenches, and outputs signals to a Pokayoke (error-proofing) counter such as the CNA-4mk3. It can also receive tightening torque data transmitted from a HACQSPDY device, making it easy to create a tightening data management system.

Receives tightened-to-completion signals from battery-operated semiautomatic torque wrenches in the HAC series.
Tightening assurance system (Pokayoke) to prevent human tightening errors.
Tightening data management system using HACQSPDY
Tightening assurance system (Pokayoke)

T-FHP

The waiting is over! Wireless Pokayoke (error-proofing) Transmitters for Compact Torque Wrenches

Tightening count control for pokayoke prevention of human tightening errors
Tightening assurance system (Pokayoke)

QSPCAMS / QSPCALS / QSPCAFHP / QSPCAFH

A torque wrench that prevents 3 problems: under-tightening, over-tightening, and other human tightening errors.

Prevents under-tightening, over-tightening, and other human tightening errors.
Tightening assurance system (Pokayoke)

HA/HAC

For battery-charge type for excellent workability. Semi-automatic electric torque wrenches let you use your existing torque wrench tester for calibrating.

Cell production and assembly work on a sub-line
Tightening Data Management System
Provides evidence in the form of tightening torque data
Tightening assurance system (Pokayoke)

MPQL / MQL

Pokayoke (error-proofing) marking torque wrench. Lets you make direct visual checks for bolt tightening errors.

Pokayoke (tightening assurance).
Tightening assurance system (Pokayoke)

A

The pneumatic motor mounted on the torque wrench permits uninterrupted work from provisional tightening to final tightening. The A series was upgraded to the A3 series on May 21, 2018.

For assembly and mass-production.
Tightening assurance system (Pokayoke)

MQSP

Pokayoke (error-proofing) marking torque wrench. Lets you make direct visual checks for bolt tightening errors.

Pokayoke (tightening assurance).
Tightening assurance system (Pokayoke)

AC2

The pneumatic motor mounted on the torque wrench permits uninterrupted work from provisional tightening to final tightening. The AC2 series was upgraded to the AC3 series on May 21, 2018.

For assembly and mass-production.
Tightening assurance system (Pokayoke)

CMQSP

A mark is made on the tightened cap screw and an adjacent location on your work. This lets you check for subsequent loosening. A marking torque wrench for tightening cap screws, which prevents human tightening errors.

Pokayoke (tightening error-proof)
Tightening assurance system (Pokayoke)

QSPLS/CSPLS/QRSPLS/SPLS/SPLS-MH/RSPLS/RSPLS-MH/SPLS-N

Pokayoke torque wrench with limit switch output to eliminate missed tightening.

Pokayoke (tightening assurance).
Tightening assurance system (Pokayoke)

QLLS/CLLS/PQLLS/PCLLS/TiQLLS

Pokayoke torque wrench with limit switch output to eliminate missed tightening.

Pokayoke (tightening assurance).

T-BLA/QLBLA

Newly released by Tohnichi for the U.S., Canada and Mexico: Wireless Pokayoke torque wrench to prevent human tightening errors. It uses the Energy Harvest system for solar power generation. No need to change batteries, saving time and money.

Pokayoke error-proof system helps prevent human error when tightening bolts and screws.
Assembly line interlock control system using tightening count control.
Pokayoke (error-proof) system / Tightening control system
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