Direct Spot Welding Machine(DISM)

Direct Spot Welding Machine PAT.P

The DISM peels off magnetic wire coating and welds the wire in a single operation.
The DISM is an AC spot welding machine that has no need for pretreatment of the magnetic wire end.
The DISM is not in need of a separate process for peeling off coating, so increases work efficiency and contributes to improvement of the quality.
The DISM can also be built into an automatic wire-winding line as a welding unit.

22-Jan-2018 update(21.4MB)


Model name Common Specifications KWA061B KWA080B
Power sources Welder section AC200V single phase
Control section AC100V
Welder section Rated capacity 3.2KVA
Normal air pressure 4~6kgf/c㎡
Maximum applied force 28kgf
Coolant flow rate 200ml/min
Depth dimension 105~110mm
Electrode stroke MAX 20mm
Controller section Constant current type or power supply compensation type controller using thyristor phase control.
Dimension & weight W740 H1260 D900 110kg
Air pressure detection
(for driving welding head)
Air pressure gauge
/visual confirmation
Digital Air pressure gauge
/signal output
Cooling water detection Blade rotation
/visual confirmation
Blade rotation
/signal output
(for electrode control)
4-digit counter 1
/singal output
4-digit counter
/signal output

We are also pleased to design and manufacture other items to meet customer’s demands.

Welding flow

It takes about two seconds from applying pressure to welding completion.

Example of welding strength data (Unit:kg)

Terminal : Tin-plated phosphor bronze t=0.8
*Welding strength is depending on welding conditions,
wire diameter, and wire type; however, standard
horizontal tensile strength is 70% ~90% of strand strength.

Wire type Strand strength Horizontal tensile strength Ratio of welded
wire strength to strand strength
Minimum Maximum
PEWφ 0.2 0.749 0.621 0.735 82-98
AIW φ 0.2 0.868 0.649 0.865 74-99
PEW φ 0.3 2.009 1.597 1.957 79-97
AIW φ 0.3 2.075 1.750 2.050 84-98

Examples of combination of wire material,
wire type,wire diameter,
and object to which wire is welded.

Object to
which wire is welded
Tin-plated phosphor bronze
Tin-plated phosphor brass
Wire to be welded PEW EIW AIW
Wire diameter: φ0.03 ~ φ0.8mm

Examples of DISM application

Coil manufacturing


VA effect

Reduced peeling rate 0.2min.pcs –> 0min./pcs 0.43min./pcs –> 0min./pcs
Amount of effect 25yen/min.×0.2min./pcs=5yen/pcs 25yen/min.×0.43min./pcs=10.75yen/pcs
Annual amount of effect 50,000pcs/month×5yen/pcs12months

Welding examples

Welding to flat terminal
Welding to flat terminal
Welding of wound wire
Welding of wound wire

*Product specifications are subject to change. For details, please refer to the specifications.


The KWA372A is a twin-electrode spot welder that has high welding pressure and current. It is particularly well-suited for welding work using large-diameter wires.
As an option, a sensor unit for maintaining a constant fusing thickness is available.


Examples of use electrical equipment for automobiles, motors, generators, transformers,household electrical appliances.