Due to the fact that the 4 roller straightening machine has 2 pairs of straightening rollers, compared to vertical 2-roller straightening machine, it has lower pressure, highly steady straightness, more minimal deviation on size tolerance.
FOYE 4-roller straightener operates simply, it adopts an HMI/PLC/frequency converter control system to achieve electric adjustment on roller gap and can preserve relevant data.
| Model | FR-05 | FR-10 | FR-15 | FR-20 | FR-30 | |
|---|---|---|---|---|---|---|
| Raw Material | Diameter range (mm) | Φ5-Φ6 | Φ6-Φ10 | Φ10-Φ16 | Φ16-Φ25 | Φ20-Φ30 |
| Length(m) | 2-6 | 2-6 | 2-6 | 2-6 | 2-6 | |
| Straightness(mm/m) | 2 | 2 | 2 | 3 | 3 | |
| Roundness | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 | ＜0.01 | |
| Finished Bar | Straightness(mm/m) | ＜0.1 | ＜0.1 | ＜0.1 | ＜0.1 | ＜0.1 |
| Surface roughness(Ra) | ＜0.8 | ＜0.8 | ＜0.8 | ＜0.8 | ＜0.8 | |
| Diameter tolerance(mm) | ＜0.02 | ＜0.02 | ＜0.02 | ＜0.02 | ＜0.02 | |
| Straightening Speed (m/min) | 0-60 | 0-60 | 0-60 | 0-40 | 0-30 | |
| Main Power（kw) | 22 | 22 | 30 | 37 | 45 | |