AUTO PIERCING technology for magnet wire: SM Contact starts production of P-type splice band
Auto piercing by splice crimping is a cost-effective alternative to IDC terminals and soldering (spot welding) in magnet wire applications. SM Contact launches production of splice band for piercing of enameled wires — P-type splice band, in addition to the standard one.
Magnet-piercing splice band is leveraged in connecting power/signal and magnet wires (coils) in electric motors, e-mobility (EV charging stations) and household appliances. It enables one-step reliable gas-tight connectivity between standard power wire and insulated magnet wire. Auto piercing technology offers advantages of a low cost and fast cycle time.
1 — Repeatability:
stable quality with the mechanical process and control of the splice band shape => stable electrical connection without component damage risk.
2 — Reduced cycle time:
by eliminating soldering and stripping operations (0.3 sec).
3 — Qualified and validated connection supported with data sheet:
all required parameters, such as pull force, compression rate, contact resistance, are reached by computer simulation and laboratory studies using a certain splice band.
P-type splice band provides a method of connection of an enameled magnet wire directly to wire or component.
P-splice band profile
|Piercing serrations, penetrating varnish insulation used on copper and aluminium magnet wires:|
P-splice band materials
SM Contact offers P-type splice band mostly in LA, also in LE and CN.
(brass with tin coating)
|Typical applications||Standard applications||Same as LA but more corrosion resistant||Perfect corrosion resistance.
Fits for spot welding.
1 to 2 μNi +
4 to 6 μSn100%
|Resistance (K coeff.)||3.55||3.55||8.5|
Advantages of using P-type splice band by SM Contact with SM Crimp equipment:
1 — Zero tooling damage risk:
splice band characteristics are considered for connection qualification and machine settings.
2 — Optimal connection properties:
required parameters specified in the data sheet are reached by using a certain splice band — produced by SM Contact. Third-party splice band may not allow achieving these characteristics.