Practical Test Data - Hitachi SP 18VA Technical Data And Service Manual

6-2. Practical Test Data

1) Comparisons in torque vs. rotation speed
3500
3000
2500
C (maximum speed)
2000
1500
1000
500
0
2) Sanding performance comparisons
350
300
250
200
150
100
50
0
SP 18VA (minimum speed)
C (minimum speed)
1 2
SP 18VA
C
5
--- 5 ---
SP 18VA (maximum speed)
SP 18V (maximum speed)
SP 18V (minimum speed)
3 4
Workpiece material: SPCC (mild steel)
Sanding disc used: AP #50
Applied pressure: 4 kg
Speed: Maximum speed
SP 18V
10
5
Torque (N m)
•
15
Time (min.)