Roll forming machine for the production of C-, Z- and Σ-profiles
from € 700.000,-
| Lease options: | Op aanvraag |
C-, Z- and Σ-profiles can be seen everywhere in buildings, both commercial and non-residential and residential. These profiles were once started with limited dimensions but there has naturally been development in this.
For roll forming, the nice thing about these profiles is that they are tremendously similar.
- The C-profile is the foundation.
- To make a Z-profile, one side of the C is rolled on the other side. This is often solved by double rolls where only at the beginning the material is pushed in the correct bending direction.
- The Sigma profile is the same as a C-profile, but here an additional back, in the form of a trapezoid, is rolled beforehand in the middle.
“All of these profiles also contain holes, so they are bolted together with heavy bolts in construction. The machine punches these holes in the profiles. This can be done before roll forming, but for many profiles the punching operations follow right after roll forming.”
General features of the roll forming machine for the production of C-, Z- and Σ-profiles
The setup of this roll forming machine for the production of C-, Z- and Σ-profiles is as follows:
Actually, the line always starts with a decoiler and coil carriage for loading the coils.
This is followed by a loop with loop-control before the material is fed into the straightener to make it flat. The material always has a curvature because it is supplied in rolls.
The curvature must be corrected before we can punch. When punching, we use the line as a start-stop feed, but for more speed we deploy a separate feed roller that places the holes in the correct positions. Between punching and roll forming, we create a loop with loop control. Depending on the profile type, the roll forming machine includes many stations to form heavy building profiles with right-angle corners. At the end of the roll forming machine we place a calibration station to correct the rotation in the profile. This occurs especially with Z profiles. Important for this is that the material quality is always the same.
Cutting the C-, Z- and Σ-profiles
After roll forming, the profile is truncated. With this type of profile, this is almost always done afterwards, so as not to leave any deflections of the profile at the beginning and end. Trimming can be performed with either fixed shears or flying shears. With fixed scissors, the roller former stops at the correct length to cut. With flying shears, the shears move with the profile during profiling. Once the shears are up to speed and position, cutting is done. Meanwhile, the roll forming machine continues at a constant speed.
After cutting, the profile is collected. There are many different options for this, ranging from manual stacking to automatic robotic stacking, in which the C and Sigma sections are turned around to be stacked together.
Specifications
As mentioned earlier, size varies greatly. The smallest and the largest profile together determine how we build the roll forming line. Currently, we produce profiles up to a width of 400 mm and a material thickness of 4 mm. In addition, material quality is constantly increasing. Where we previously worked with St37, we now use S420 and S490. These stronger materials obviously affect the weight and design of the roll forming machine.
Features
The great advantage of roll forming these profiles is that each length is often different with different hole spacings. This is easy to include in the control. In addition, it is often the huge quantities that are needed, making roll forming the most efficient method of producing the profiles.
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