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6-2. Comparisons in Torque vs. Rotation Speed and Stator Coil Temperature Rise
Figure 4 shows comparisons of the rotation speed and the stator coil temperature rise between a competitive
model with respect to torque. Torque represents the magnitude of load, i.e., the amount of pressing force, cutting
depth and forward force in actual cutting jobs. This shows that a powerful motor is less likely to burn out because
it has both a minimum drop of rotation speed even at a greater torque and a lower stator coil temperature rise at
the same torque.
Fig. 4 Comparisons in torque vs. rotation speed and stator coil temperature rise
Figure 4 indicates:
(1) The Models G 12SA3 and G 13SB3 keep higher rotation speed than the Models G 12SA2/G 13SB2, H and B
in the heavy load range. This means that the working efficiency of the Models G 12SA3 and G 13SB3 is
superior to the Models G 12SA2/G 13SB2, H and B.
(2) The stator coil temperature rise of the Models G 12SA3 and G 13SB3 is lower than that of the Models
G 12SA2/G 13SB2, H and B. This means that the Models G 12SA3 and G 13SB3 are resistant to burn out
even at a heavy load operation and their motors are tough.
Содержание G 12SA3
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