Hitachi SP18VA, Технические данные и руководство по обслуживанию

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4-1. Selling Point Descriptions
1) High-power motor and light weight
The Model SP 18VA is equipped with high-power motor and is more powerful than the current Model SP 18V
although it is compact and lightweight. We could say that the ratio of the motor's maximum output to the
product's weight defines its performance. Compared with a typical competitor's model in terms of this
indicator, the Model SP 18VA proves to have the highest performance.
Table 1 Comparison of max. output and product weight
Item
Maker
Model
914 (0.55 HP/lbs.)
Hitachi
2,560 (3.4 HP)
SP 18VA SP 18V
Max output * 1 (W)
Max output/product weight (W/kg)
Actual product weight * 2 (kg)
2.8 (6.2 lbs.)
567 (0.35 HP/lbs.)
1,700 (2.3 HP)
3.0 (6.6 lbs.)
633 (0.38 HP/lbs.)
1,900 (2.5 HP)
3.0 (6.6 lbs.)
C
*1
Max. output may vary depending on the market.
*2 Actual product weight is a measured weight and excludes cord, loop handle, rubber pad and washer nut.
2) Iron bearing bushing
An iron bearing bushing is newly added to the housing. The heat resistance of the bearing chamber on the
commutator side is significantly improved in comparison with current models.
Fig. 2
Ball bearing chamber of housing
Ball bearing
Bearing bushing (iron)
Rubber ring
Ball bearing
Ball bearing chamber of housing
New ball bearing chamber
of housing (SP 18VA)
Current ball bearing chamber
of housing (SP 18V)