Armature Winder Rotor Winding Machine Two Flier Slotted Commutator PMDC Motor

Q:Wire size and Wire slot size relation (Length,width and depth)?

A: The wire slot should have enough space for the wire to stay inside Wire size 17AWG (1.15 mm),

    Slot: blade width 1.143, length=7.14 mm, depth= 5.95 mm

    and we think if the depth is bigger, the wire can acquire more space to stay inside slot,

    while depth is more, length is more too,

Q: How to settle if there is indexing issue?

A: Could you please check if the commutator was pressed consistanctly each time at same

    location according armature stack?

    The push pin witness marks on the commutator are consistent.

    Because armature commutator and stack position is very important for indexing consistantly

    How to do pin hole test for the wound armature to verify the wound armature quality?

    Operation steps for brine pinhole test for enamelled wire.

    1.Prepare copper wire or wound armature samples according to the requirements
   

    2. Connect the power supply, switch on the power, adjusting DC voltage meter adjustment knob,

    the voltage value is 12V.

    3. Copper wire or wound sample was immersed in 0.2% of the concentration of salt solution

    (main ingredients are water, salt, pure alcohol, phenolphthalein, 3%)
 

    In the sample, the negative electrode connected with DC power supply, DC power connected with the

    positive solution.
 

    4.Within a minute, observe the change of the sample, if the sample has no obvious change, indicating

    that the sample without pinhole, if the red and the penetrating phenomenon around the sample you

    need to pay attention to, at this time, explain the pinhole, carefully count, there is the phenomenon of a

    few, there are a few pinholes.

    5.After the experiment, turn off the power and take out the sample

​Please click below picture to view video