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HOME > Products > Torque Screwdriver > Error-proofing (Pokayoke) Torque Driver > RTDFH / RNTDFH

Error-proofing (Pokayoke) Torque Driver

RTDFH / RNTDFH

Remote signal rotary slip torque screwdriver

Prevents human tightening errors (Pokayoke)

Rotary Slip

Wireless

Prevents human tightening errors by wireless (cordless). Wireless communication range and battery life were both significantly increased for the RTDFH/RNTDFH in March 2024.

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:

Products upgraded since March 2024 have this identification mark.

Application

Pokayoke (tightening error-proof)

Features

Upgraded products placed on the market in March 2024. Wireless communication range is from 20 to 30 meters (approximate), when in new communication mode. Battery life has significantly improved, from 300,000 to 550,000 shots.
Can monitor transmitter battery voltage. Alerts when voltage drops below set voltage (only when operated in new communication mode).
Maintenance alert function has been added. When the number you have set is reached, it alerts you it is time for a periodic calibration, etc.
Use of an R-CM receiver or SB-FH2 wireless setting controller lets you switch to older communication mode. Even the R-FH256MC receiver, which was formerly used with the FH256MC transmitter, can receive signals. The recent upgrade lets you use the transmitter switch to check communication mode and switch between old and new modes.
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.
The RTDFH/RNTDFH series conforms to telecommunication standards in Japan, the U.S., Canada, Thailand, Taiwan, Mexico, Vietnam, China, the EU, South Korea, India, and Singapore. (Information valid as of March 2024.) For other countries, 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
TORQUE RANGE [cN･m]	GRAD.[cN･m]		1	2	5	ー	ー	ー
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
TORQUE RANGE [kgf･cm]	GRAD.[kgf･cm]		0.1	0.2	0.5	ー	ー	ー
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
TORQUE RANGE [lbf･in]	GRAD.[lbf･in]		0.1	0.2	0.5	ー	ー	ー
APPLICABLE SCREW	SMALL SCREW		（Ｍ3.5）	M4（Ｍ4.5）	M5,M6	（Ｍ3.5）	M4（Ｍ4.5）	M5,M6
APPLICABLE SCREW	TAPPING SCREW		M3（M3.5）	M4	（Ｍ4.5）	M3（M3.5）	M4	（Ｍ4.5）
DIMENSION [mm]	OVERALL LENGTH	L'	191	208	219	173	173	181
	GRIP	D1	24	30.5	33	24	30.5	33
	BODY	D2	18	23	26	ー	ー	ー
		D3	11
		L1	24
		L2	164 - 174	181.8 - 191.8	193 - 205	140	143	151.3
	LOCKER	d	33	41	45	ー	ー	ー
	LOCKER	W	30	37.5	41	ー	ー	ー
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-CM + M-FH		SB-FH2
FREQUENCY BAND	2.4GHzband (2.402GHz - 2.479GHz、1MHz interval 78ch)
COMMUNICATION SYSTEM	Spread spectrum(frequency hopping system)
MODULATION SYSTEM	GFSK
MODULATION RATE	New communication mode 250 kbps, Old communication mode 1 Mbps
GROUP CHANNEL	Gr000 - 255
ID	３digit (000 - 999)、7digit (alphanumeric）					―
INPUT/OUTPUT	ー			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 - 50℃ (no condensation)
TRANSMITTING RECEIVING DISTANCE	New communication mode approx. 20 - 30 m, Old communication mode approx. 10 - 20 m

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 does not function with a mixture of new and old communication modes.
Both RTDFH and RNTDFH are set to new communication mode when shipped. If you wish to change to the older communication mode, you need to operate the switch on the transmitter.
Before the product is shipped, we can custom set the channel and group ID (for a fee). At the same time, we can also change the communication mode from old to new or vice versa.

Standard accessory

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

Dimensions

Expand 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.
Both RTDFH and RNTDFH are set to new communication mode when shipped.

　If you wish to change to the older communication mode, you need to operate the switch on the transmitter.

Before the product is shipped, we can custom set the channel and group ID (for a fee). At the same time, we can also change the communication mode from old to new or vice versa.