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“QLLS / CLLS / PQLLS / PCLLS / TiQLLS”  Error Proofing Torque Wrench


  • Pokayoke (tightening assurance).


  • Adjustable style torque wrench with limit switch output.
  • Upon reaching the set torque, the torque wrench “clicks” to complete tightening while the limit switch simultaneously sends out a contact signal.
  • A limit switch can be connected to a CNA-4mk3 count checker (sold separately) to easily create a tightening count management system.
  • Signals from a limit switch are captured on a programmable logic controller (PLC) or similar device to establish a Tightening Assurance System using assembly line interlock controls.
  • LS wrenches are supplied with a durable curl cord.
  • QLLS, CLLS and PCLLS series products are interchangeable head torque wrenches. Tohnichi’s interchangeable head lineup offers the best selection in the world, making these wrenches ideal for your work.
  • You can modify the wireless Pokayoke (error-proofing) torque wrench on your own, by using the LS part of your existing LS torque wrench to replace the mounting on the T-FHSLS256 transmitter. Contact us for details.



◆ How to order

[Tohnichi] [Model] Please specify.

[Example] Tohnichi QLLS100N4

◆ Things to remember when ordering

For dimensions, shapes, capacities, etc., refer to models QLCLPQLPCLTiQL.

We can also attach to a torque wrench other than that with LS. Please contact us.

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

Female connector is not supplied for LS cable.





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