TPT May 2007

Flying cutoff Alda 102 x 4 – 100 Combi

Parameters

Cold saw Shear

Units

Tube diameter max/min Square profile max Rectangle profile max Wall thickness max/min

102/38 80 x 80 120 x 40 4.0 ÷ 1.0

---

mm mm

80 x 80

100 x 60 mm 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

--- 17

mm

Number of cutting cycles for L=6m

12 ÷ 14

1/min

Life of blades between sharpening (est)

80 ÷ 100

100 ÷ 200

t

› Figure 4 : Detail of the Alda s 38x2.5-120 sawing unit

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 cutoff Alda 63 (76) x 3.5 – 100 Combi

Parameters

Cold saw Shear

Units

Tube diameter max/min

63.5 (76)/19

---

mm mm

Flying cold saw Aldas 138 x 5 – 80

Square profile max

50 x 50 (60 x 60)

50 x 50 (60 x 60)

Parameters

Values 138/76

Units

Rectangle profile max. Wall thickness max/min

80 x 20

70 x 30

mm

Tube diameter max/min Square profile max Rectangle profile max Wall thickness max/min

mm mm mm mm

3.5 ÷ 1.0

3.5 ÷ 1.2 mm

100 x 100 150 x 50

Material

S 185; S 235 JRH; S 235 JR; 1.4301; 1.4571

6 ÷ 1.5

Material

S 185; S 235 JRH; S 235 JR; 1.4301; 1.4571

Mill speed max

90

120

m/min

Rotary saw diameter

500

--- 20

mm

Number of cutting cycles for L=6m Life of blades between sharpening (est)

15

1/min

Mill speed max

80

m/min

Rotary saw diameter

650

mm

100 ÷ 150 120 ÷ 250

t

Number of cutting cycles for L= 6m

12

1/min

Life of rotary blade between sharpening (est)

80 ÷ 100

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.

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.

fi Figure 6 : Flying saw cutoff Aldas 200x6-40-Kvatro

fi Figure 5 : Alda SJ 63x2.6-100

158

M ay /J une 2007