Hitachi G 18SCY, Технические данные и руководство по обслуживанию

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100 50
0
G 18SCY/G 18SEY
G 18UAY/G 18UBY
G 23SCY/G 23SEY
G 23UAY/G 23UBY
B
150
G 18SE2/G 18SG2
G 18UA2/G 18UB2
G 23SC3/G 23SE2
G 23UA2/G 23UB2
1
2
G 18SCY/G 18SEY
G 18UAY/G 18UBY
G 23SCY/G 23SEY
G 23UAY/G 23UBY
B
3
G 18SE2/G 18SG2
G 18UA2/G 18UB2
G 23SC3/G 23SE2
G 23UA2/G 23UB2
4
60% reduction
Ave. 1.8
Ave. 2.0
Ave. 0.7
Roughness (asper)
Fig. 4
Fig. 5
4-4. Class-top Overload Durability
The stator coil of the G 23SCY series is divided into two parts in order to make the surface area of the the stator
coil 1.5 times larger than the conventional models for better cooling efficiency. Thus the temperature rise of the
stator coil during overload operation is 25% lower than the current G 23SC3 series. It is the greatest overload
durability in the class. Figure 5 shows the comparison of overload durability when the stator coil temperature rise
is 200 û K using the Model G 23SCY as a reference.
As is evident form this, the G 23SCY series are superior to the competitors in overload durability.
(b) (a)
Sectional view of the stator coil
(b) (a)
Spindle
Coupling
Gear
Coupling damper