Sehan
Sehan - Electric Screwdrivers and Fastening Systems from Korea
Sehan Electools Co., Ltd. from Korea is a specialist in fastening systems and builds electric screwdrivers, pneumatic screwdrivers and controllers. The company was founded in 1969 as Sehan Company and has produced electric screwdrivers in its own plant since 1996.
Our range covers torque from 0.02 to 10 Nm. Every screwdriver is ESD-safe with a dissipative housing and a grounded bit, works with a shut-off clutch and offers steplessly adjustable torque. At esd.equipment you get Sehan as a coordinated system of screwdriver, controller and accessories.
Sehan best sellers
ESD Electric Screwdriver 0.05-0.54 Nm - Sehan EF055-E
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ESD Electric Screwdriver 0.30-2.45 Nm - Sehan K250-A
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Brushless ESD Electric Screwdriver 0.2-1.18 Nm - Sehan F120-A
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Brushless ESD Electric Screwdriver 0.59-2.15 Nm - Sehan NF220-A
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Brushless ESD Electric Screwdriver 0.7-3.5 Nm - Sehan YF35N-A
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Controller for Electric Screwdrivers - Sehan KT-38D
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Controller for Electric Screwdrivers - Sehan FT-40D
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Screw Counting Unit - Sehan SCOUT II
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The Sehan product lines
Electric screwdrivers (handheld)
ESD Electric Screwdriver 0.03-0.29 Nm - Sehan EF030-E
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ESD Electric Screwdriver 0.20-1.18 Nm - Sehan EF120-A
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ESD Electric Screwdriver 0.39-3.43 Nm - Sehan K350-A
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ESD Electric Screwdriver 0.49-4.41 Nm - Sehan K450-A
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Brushless ESD Electric Screwdriver 0.4-1.8 Nm - Sehan LF180-A
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Brushless ESD Electric Screwdriver 0.1-0.78 Nm - Sehan F080-A
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Brushless ESD Electric Screwdriver 0.3-1.47 Nm - Sehan NF150-A
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Brushless ESD Electric Screwdriver 1-5 Nm - Sehan YF50N-A
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Choosing the right Sehan screwdriver
Define the torque range
The most important choice is the torque you need. Sehan covers 0.02 to 10 Nm, from the Mini series for fine assembly up to the HF series for stronger fastening. Pick a model whose range keeps your target torque near the middle, so the stepless setting stays stable and repeatable.
Carbon brushes or brushless
The EF series Mini, EF series and K series run on carbon brushes and work with the KT-38D controller. The brushless series are suitable for cleanroom class 5 and hold a repeat accuracy of ±3 percent.
- With carbon brushes: EF series Mini, EF series and K series
- Brushless: LF, F, NF, FT, NFT, YF and HF series
Controller and accessories
Each series belongs on its matching controller, that is the KT-38D, FT-40D, YFC-35D or HTC-35. With the SCOUT II screw counting unit on the KT-38D and FT-40D you count the fastenings. Accessories include protective caps for the torque adjustment ring, pistol grips, vacuum attachments for picking up the screw as well as straight connection cables and coiled cables.
Which Sehan line fits?
| Criterion | With carbon brushes | Brushless | Robot screwdrivers |
|---|---|---|---|
| Use | Series and fine assembly | Cleanroom and electronics production | Automated fastening stations |
| Series | EF Mini, EF, K | LF, F Mini, F, NF, FT, NFT, YF, HF | FA, NFA, YFA |
| Drive | Carbon brushes | Brushless | Brushless |
| Controller | KT-38D | FT-40D, YFC-35D, HTC-35 | Depends on the series |
| Torque | 0.03 to 4.41 Nm | 0.02 to 10.0 Nm | Depends on the series |
| Start | By hand | By hand | External start and stop input |
Sehan at a glance
Frequently asked questions about Sehan
Where does Sehan come from?
Sehan Electools Co., Ltd. is a Korean manufacturer of electric screwdrivers, pneumatic screwdrivers and controllers. The company was founded in 1969 as Sehan Company and has produced electric screwdrivers in its own plant since 1996.
What are Sehan screwdrivers used for?
They are used in electronics and fine assembly, in series assembly, in equipment manufacturing, in medical technology, in cleanroom production and at automated fastening stations.
Are Sehan screwdrivers ESD-safe?
Yes. Every screwdriver in the range is built ESD-safe, with a dissipative housing and a grounded bit. They work with a shut-off clutch and steplessly adjustable torque.
Which controller do I need?
The EF series Mini, EF series and K series run on the KT-38D. The LF series, F series Mini, F series and NF series work with the FT-40D. The YF series belongs on the YFC-35D and the HF series on the HTC-35. The FT and NFT series already have the sequence control built in.
Which bit holder do the screwdrivers have?
The Mini series have a 4.00 mm half-round bit holder. All other series take bits of 6.35 mm, that is 1/4 inch in form E 6.3.
Need advice or a trade price?
Our team helps you select the right Sehan system for your assembly. Contact us for an individual quote.























