160 / 164
158
M
ay
/J
une
2007
›
Figure 4
:
Detail of the Alda s 38x2.5-120 sawing unit
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Figure 6
:
Flying saw cutoff Aldas 200x6-40-Kvatro
Flying cutoff Alda 63 (76) x 3.5 – 100 Combi
Parameters
Cold saw Shear
Units
Tube diameter max/min
63.5 (76)/19
---
mm
Square profile max
50 x 50
(60 x 60)
50 x 50
(60 x 60)
mm
Rectangle profile max.
80 x 20
70 x 30
mm
Wall thickness max/min
3.5 ÷ 1.0
3.5 ÷ 1.2 mm
Material
S 185; S 235
JRH; S 235 JR;
1.4301; 1.4571
Mill speed max
90
120
m/min
Rotary saw diameter
500
---
mm
Number of cutting cycles
for L=6m
15
20
1/min
Life of blades between
sharpening (est)
100 ÷ 150 120 ÷ 250
t
Power input
120
140
kW
Comments: Conceptually, this is a very successful type of flying cutoff
that enables a change between cutting by saw or shear within 10 ÷
15 minutes. In recent years, the combination of dividing tubes by saw
and profiles by shear has proven the most effective. It is possible to
supply the machine with only the cold saw or only the shear.
Flying cutoff Alda 102 x 4 – 100 Combi
Parameters
Cold saw Shear
Units
Tube diameter max/min
102/38
---
mm
Square profile max
80 x 80
80 x 80
mm
Rectangle profile max
120 x 40
100 x 60 mm
Wall thickness max/min
4.0 ÷ 1.0
4.0 ÷ 1.6 mm
Material
S 185; S 235
JRH; S 235 JR;
1.4301; 1.4571
Mill speed max
60 ÷ 80
100
m/min
Rotary saw diameter
600
---
mm
Number of cutting cycles for
L=6m
12 ÷ 14
17
1/min
Life of blades between
sharpening (est)
80 ÷ 100
100 ÷ 200
t
Power input
160
180
kW
Comments: The Design Combi offers a choice of dividing by saw or
shear. A change is possible within 20 ÷ 30 minutes.
Flying cold saw Aldas 138 x 5 – 80
Parameters
Values
Units
Tube diameter max/min
138/76
mm
Square profile max
100 x 100
mm
Rectangle profile max
150 x 50
mm
Wall thickness max/min
6 ÷ 1.5
mm
Material
S 185; S 235 JRH;
S 235 JR; 1.4301;
1.4571
Mill speed max
80
m/min
Rotary saw diameter
650
mm
Number of cutting cycles for L= 6m
12
1/min
Life of rotary blade between
sharpening (est)
80 ÷ 100
t
Power input
160
kW
Comments: This is the largest size of flying cold saw using one
rotary saw blade. It is currently in the design stage.
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Figure 5
:
Alda SJ 63x2.6-100