Poor weld detection system



Handy-navi detects with a high accuracy whether or not the nut and the workpiece are set correctly right before welding.
It prevents manufacturing defectively welded products.
It is a bad welding detection system developed for manual work in nut welding.

- SMK has acquired the intellectual property rights both inside and outside Japan.

Handy-navi Slide Unit

  • Slim, space saving
  • Air blow system reduces spatter adhesion to the inside of the unit.
  • Easy installation to welding machine.

Holder has excellent cooling effect! Six sizes available.

Internal water-cooling system that directly cools the inside of the holder reduce abrasion and spatter adhesion caused by heat on the electrode part.
Slim and compact body without water jacket or intermediate adapter allows minimum interference with the workpieces.
We have 6 standard sizes for inner water-cooling holder.
Please contact us for other sizes.

Holder outer dia. Φ25 Φ32
Suitable nut size M4・M5・M6・M8 M10・M12・7/16
Holder overall length 150㎜・200㎜・250㎜ 150㎜・200㎜・250㎜


Ceramics guide pin specification

Ceramics guide pin (Silicon nitride) is included as standard equipment.
Ceramics guide pin has high hardness and long service life. Because there is no electrocorrosion, nor abrasion.
Also there is no adhesion of spatter and jamming of nut.
The use of silicon nitride guide pins stabilizes navi measurements.

Air-Bleeding Valve

Air-Bleeding Valve is included as standard equipment, which enables quick air bleeding in electrode replacements.

Air Blow system

Air blow system reduces spatter adhesion to nuts, guide pins, and inside of the unit. Air cooling effect prevents heating of the electrode.

Handy-navi Controller

  • CE marking acquisition
  • Palm-sized, outstanding operability
  • Overlapped nuts detection (optional sensor)
  • Manufacturing defects prevention
  • Error display


AC adapter

Junction cable for manual operation

Controller mounting plate

Cable Tie


Product name Handy-navi
Weight Approx. 2.04 kg(The size and weight are for the cases of a holder dia. 25 x 150 mm.)
Guide pin drive Air cylinder
Cooling method Inner water-cooling
Holder outer dia.(mm) 25/32
Holder overall length(mm) 150/200/250
Attachments AC adapter: 1 pce, Junction cable for manual operation: 1 pce, Controller mounting plate: 1 pce, Cable Tie: 2 pcs

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