Selling Point Descriptions - Hitachi ce 16sa Service Manual

4-1. Selling Point Descriptions

(1) Rapid cutting speed (6.3 m/min):
As shown in the table below (based on comparative cutting of 1.6 mm [1/16"] mild steel plate), the cutting
speed of the Model CE 16SA is the fastest in this class of hand shears. This is because of the high stroke
speed of the piston during actual cutting operation; the more powerful motor minimizes stroke speed loss
when the load is increased. The much higher cutting speed of the Model CE 16SA in comparison with B and
C.
For further details concerning the relationship between the cutting speed and the number and the length of the
piston strokes, refer to the explanation of cutting speed below.
(NOTE) Actual cutting speeds may vary depending on the hardness of the workpiece material, the skill of the
operator, and other variables.
Maker Model
CE 16SA
HITACHI
CE 16
B
C
-1
* Stroke (min ) indicates the number of strokes during actual cutting operation.
Explanation of cutting speed
From the formulae above, it can be clearly seen that increases in the values of "N" and "H" will result in faster
cutting speeds. However, it should be noted that the amount to which these values can be increased is
limited by the bounds of existing design technology. In addition, please note that there is very little difference
in the value of the constant "C" among the various manufacturers.
(2) Smallest grip in this class:
Table 2 Comparison of grip circumference
Maker Model
CE 16SA
HITACHI
CE 16
B
C
Table 1 Comparison of cutting speed for 1.6 mm mild steel
2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
Moving blade
Workpiece
Stationary blade
L
Fig. 1
Grip circumference
184 mm (7-1/4")
208 mm (8-3/16")
195 mm (7-11/16")
200 mm (7-7/8")
m/min
Stroke (min
4
6
6.3
5.8
4.1
5.0
S: Cutting speed (m/min)
N: Number of actual strokes (/min)
H: Length of stroke (m)
L: Cutting length per stroke (m)
C: Constant
S = N x L
= C x N x H
The housing is easy to grip and use because the
grip circumference is 24 mm shorter than the
conventional model, 11 mm shorter than B, and
16 mm shorter than C.
--- 2 ---
-1
)* Length of stroke (mm)
3,700
2
3,400
2
2,900
2