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Use accurate torque controls to improve quality! Case examples can be found in torque handbook 8

Error-proofing (Pokayoke) Torque Driver

RTDFH / RNTDFH

Remote signal rotary slip torque screwdriver
RoHS markingIEC markBit insertion part 6/35 mark

Prevents human tightening errors (Pokayoke)

Rotary Slip

Wireless

Cordless. Prevents missed tightening. The R-FH256 receiver has been upgraded to the R-CM, which is downward compatible.

Wireless Pokayoke (error-proofing) torque screwdriver RTDFH120CN

Wireless Pokayoke (error proofing) Torque Screwdriver RNTDFH500CN

LED “answer-back” system signals Blue for OK, Red for NG (No Good).

Example of a Pokayoke (error-proofing) configuration:

Application

  • Pokayoke (tightening error-proof)

Features

  • When set torque is achieved the toggle activates, and at the same time a wireless tightened-to-completion signal is transmitted.
  • Cordless to greatly improve workability.
  • The R-CM receiver is the successor to the R-FH256, which has successfully partnered with the wireless Pokayoke (error proofing) FH256MC torque wrench. You can build a low cost system that combines use of wireless Pokayoke torque wrenches with wireless Pokayoke torque screwdrivers.
  • Uses answerback system for operator to verify communication status.
  • One R-CM receiver can recognize the IDs of up to four torque screwdrivers. Combining their use with the CNA-4mk3 Count Checker makes it easy to build a Pokayoke (error proofing) system.
  • Frequency hopping system enhances transmission reliability.
  • RTDFH/RNTDFH conforms to telecommunication standards in Japan, the U.S., Canada, Malaysia, Indonesia, Thailand, Taiwan, Mexico, Vietnam, China, the EU, South Korea, Russia, and India. (Information valid as of November 2019). For other countries and regions, please contact Tohnichi.

Specifications

                 
S.I. MODEL RTDFH120CN RTDFH260CN RTDFH500CN RNTDFH120CN RNTDFH260CN RNTDFH500CN
TORQUE RANGE
[cN・m]
MIN.~MAX. 20~120 60~260 100~500 40~120 100~260 200~500
GRAD.[cN・m] 1 2 5 - - -
METRIC MODEL 12RTDFH 26RTDFH 50RTDFH RNTDFH120CN RNTDFH260CN RNTDFH500CN
TORQUE RANGE
[kgf・cm]
MIN.~MAX. 2~12 6~26 10~50 4~12 10~26 20~50
GRAD.[kgf・cm] 0.1 0.2 0.5 - - -
AMERICAN MODEL RTDFH10I RTDFH22I RTDFH40I RNTDFH120CN RNTDFH260CN RNTDFH500CN
TORQUE RANGE
[lbf・in]
MIN.~MAX. 2~10 6~22 10~40 4~10 10~22 20~40
GRAD.[lbf・in] 0.1 0.2 0.5 - - -
APPLICABLE
SCREW
SMALL SCREW (M3.5) M4(M4.5) M5,M6 (M3.5) M4(M4.5) M5,M6
TAPPING SCREW M3(M3.5) M4 (M4.5) M3(M3.5) M4 (M4.5)
DIMENSION
[mm]
OVERALL
LENGTH
L' 190.5 207.5 218.5 166 167 175
GRIP D1 24 30 33 24 30 33
BODY D2 18 23 25.5 - - -
D4 33 41 45 - - -
L2 164~174 181.8~191.8 193~205 140 143 151.3
WEIGHT[kg] 0.28 0.38 0.49 0.26 0.32 0.43
                Accuracy±3%
                 
  Torque Screwdriver Receiver Wireless Setting Device  
MODEL RTDFH / RNTDFH R-FH256 SB-FH256  
FREQUENCY BAND 2.4GHzband (2.402GHz~2.479GHz、1MHz interval 78ch)  
COMMUNICATION SYSTEM Spread spectrum(frequency hopping system)  
MODULATION SYSTEM GFSK  
MODULATION RATE 1Mbps  
GROUP CHANNEL Gr000~255  
ID 3digit (000~999)、7digit (alphanumeric)    
INPUT/OUTPUT   no voltage contact output(1a)
RS232C output
RS232C input  
POWER DC3V(CR2032) AC100V~240V 47~63Hz 0.3A DC9V(alkaline battery)  
ANTENNA pattern antenna dipole antenna  
DISPLAY Communication status check LED Power LED , Receiving LED Power LED , LCD  
OPERATING TEMPERATURE RANGE 0~45℃  
TRANSMITTING RECEIVING
DISTANCE
about 10 ~ 20  
Notes
  • Auxiliary tightening tool (sold separately) can be installed.

(RTD/RNTDFHS500CN)

  • One R-CM receiver can communicate with a maximum of four torque devices, but it does not function with a mixture of new and old telecommunication modes. (You can use the SB-FH2 setting controller to switch FHM and CSPFHW to the older telecommunication mode.)

 

Standard accessory

Only RTDFH260CN and RTDFH500CN models come with an adjustable open head.

Dimensions

RTDFH

RNTDFH

◆ How to order

Specify Tohnichi, model name and torque value.

[Example 1] Tohnichi RTDFH120CN

[Example 2] Tohnichi RNTDFH120CNX90cN・m

When ordering an RNTDFH series product, please specify the Tohnichi model name and torque value.

◆ Things to remember when ordering

Standard bits on the market can be used. (6.35 HEX)

RNTDFH is preset, so you cannot set torque without a tester. If you prefer torque setting prior to delivery, indicate torque value when you place the order. Torque setting before delivery is free of charge.

Download

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Registration
Manuals

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Software

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Parts List

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Online Part Search System
How to Use
Features of TOHNICHI Torque Driver

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How to set torque on adjustable and preset torque screwdrivers

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[March 2021 Version] Tohnichi’s Torque Engineering Seminars, ready to provide positive results in the workplace right away.

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Tohnichi torque product information: Low torque tighteners for small screws, etc.

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Technical Data
5. Selection of Tightening Tools

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6. Torque Tools are Measurement Equipment

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[March 2021 Version] Everything from torque controls to Tohnichi’s Tightening Guarantee System

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