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LG30 Cold Reduction Mill
Use of LG30 cold reduction mill
1. Cold reduction mill are mainly used to produce ultra-thin and high-precision pipes;
2. The outstanding advantage of cold rolling is its strong ability to reduce diameter and wall, one time reduction can reach 65%, one time reduction can reach 75% ~ 85%;
3. At the same time significantly improve the performance, size and surface quality of incoming materials;
4. LG30 cold reduction mill is used to produce finished pipe diameter of 15mm to 40mm of different materials such as carbon steel, copper pipe, alloy steel, stainless steel, aluminum pipe etc.
Main parameter of LG30 cold reduction mill
Item |
Description |
LG30II |
|
1 |
Mother |
OD (mm) |
22-57 |
2 |
WT (mm) |
1.35-6 |
|
3 |
Length (m) |
6.5 |
|
4 |
Finished |
OD (mm) |
15-40 |
5 |
WT (mm) |
0.6-5 |
|
6 |
Length (mm) |
<24 |
|
7 |
Max. Elongation |
5 |
|
8 |
Max. Rolling Force (t) |
65 |
|
9 |
Max. section reduction |
Non-ferrous metal(%) |
80 |
Carbon steel C〈0.35(%) |
70 |
||
Alloy steel, stainless steel(%) |
60 |
||
10 |
Max. WT reduction |
Non-ferrous Metal(%) |
70 |
Carbon Steel C〈0.35(%) |
60 |
||
Alloy steel, stainless steel(%) |
40 |
||
Item |
Description |
LG30II |
1 |
Travel speed of main frame(Time/min) |
50~100 |
2 |
Stroke of main frame(mm) |
605 |
3 |
Feeding (mm) |
4, 5, 6, 8, 10 |
4 |
Turning angle (degree) |
52±2 |
5 |
Diameter of roller (mm) |
φ250 |
6 |
Modulus of driving gear |
8 |
7 |
Length of connecting bar(mm) |
2000 |
8 |
Radius of crank (mm) |
300 |
9 |
Setover between crank center line and rolling center(mm) |
250 |
10 |
Overall ratio (I) |
9.02 |
11 |
Main motor: DC (Kw, r/min) |
N=55, n=1000 |
Advantages of cold reduction mill
1. Large diameter reduction and large wall thickness reduction;
2. No process related material loss;
3. Improved product eccentricity;
4. Close diameter and wall thickness tolerances;
5. Excellent surface condition.
Pipe forming process
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