Model (coil to bar peeling machine) |
|
Raw material | Raw material dia(mm) | Φ5.5-16 |
Tensile strength N/mm2 | ≤1200 |
Surface hardness | 32HRC |
Diameter tolerence | India standard IS3739 Grade 1. |
Coil size(mm) | OD:1500, ID:900 Height:1500 Bearing Weight:2t |
Ovality | ≤diameter tolerance 50% |
Material | Bearing Steel SAE 52100, 100Cr6, Valve Steel EN52 BS 21-4N / SAE EV8 and Stainless Steel Free cutting steel, Alloy steel, Carbon steel. |
Finished product | Unilateral cutting depth(bar peeling machine) | 0.05mm ~0.5mm |
Diameter range(mm)(bar peeling machine) | Φ5.5-16mm |
Length (mtr) | From 2 mtrs to 6 mtrs |
Diameter tolerance(bar peeling machine) | ≤h9 |
Surface hardness roughness of peeled material(bar peeling machine) | ≤3.2μm |
Ovality(mm) & Lobing (mm) (bar peeling machine) | ≤0.03 as per peeled material tolerance standards. |
Speed(stepless speed adjust m/min) | 1.0~10.0 (For smaller dia, the peeling speed is not fast.) |
Tools rotating speed(stepless speed)(r/min) | 1600 |
Bar peeling machine motor(kw) | 22kw |
Main feeding motor(kw) | 4kwx2 |
Feeding motor(kw) | 1.5kw |
Pre-straightener motor(kw) | 11kw |
Hydraulic station motor(kw) | 1.5kw |
Cooling motor (kw) | 0.45kw |
Discharging motor (kw) | 3kw |
Bar straightener motor (kw) | 7.5kw*2 |
Lifting motor(kw) | 0.75kw |
Total capacity (kw) | 70kw |
Straightness after two rolls straightening mahcine | ≤0.3mm/m except for spring steel. ≤0.6mm/m only for spring steel |
Compressed Air Source(user prepare by themselves) | 0.5~0.8MPa、3m3/min、two-stage oil-water separator |
Remarks: 1) About 2 roller straightening machine: The hardness difference (HB) of one bar must be≤20 (HRC difference≤2) Raw material hardness is high, 42HRC.(The raw material needs to be annealed before process to reduce its hardness. Otherwise, the cutting insert and straightening rolls will be easily damaged.) 2) Because of the performance difference, dia of two ends (about 260mm length each end) will be changed a little after straightening. The straightness of two ends for bright bar is about 0.5mm/m, 0.3mm/m for central part (about 0.8mm/m for two ends of spring steel ). Diameter tolerance in head and end of bright bar is obvious. The end diameter tolerance is about ±0.4mm; Other diameter tolerance of one bar: Φ10~30, ≤0.03mm; Φ30~40, ≤0.04mm |