The Φ450×1300/Φ1250×1250mm 4-Hi non-reversible cold rolling mill is
through consistent summarizing and improving after manufacture
numerous cold mill on the basis of absorbing the advantages of
similar mills. The entry material for this mill is aluminium and
its alloys with entry thickness of 22mm (Max.) and exit thickness
of 1mm (Min.).
This cold rolling mill has advanced electric transmission control
system, advanced AGC system, which can make the product precision
of thickness. DC motors is supplied with power by advanced digital
silicon, and use PLC to do digital logical calculation, parameter
setting, automatic controlling, etc. In addition, this cold rolling
mill has various complete auxiliary system, such as lubricating
system, air blowing device, fume exhausting device, etc. which
provide reliable guarantee for the production high quality
products.
- Improved control and precision
- Enhanced material properties
- Versatility in processing
- High productivity
| Item | Description | Unit | Technical Specification |
Entry Strip (As per GB/T8544-1997 Standard)
| Incoming type | AA2014,AA2024,AA5083,AA7075 aluminum and alloy
(AA2014,AA2024,AA5083,AA7075) |
| Strip Width Range | mm | 800-1100 |
| Thickness | mm | Max.22 |
| Thickness Tolerance | mm | Longitudinal less than 3% of thickness, cross less than 1.5% of
thickness |
| Entry Coil O.D. | mm | Max.Φ1800 |
| Entry Coil I.D. | mm | Φ600-Φ605 (Excluding spool) Φ600 (Including spool, spool I.D.) |
| Spool Dimension | mm | Φ600/Φ660×1250 |
| Max. Coil Weight | kg | 6000 (Excluding spool) |
| Coil Requirement | | 1) Surface quality meets requirement, no serious oxidation streaks; 2) No sickle bend, telescoping less than 6mm/m, wrap to wrap
stagger less than 3mm; |
Exit Strip
| Coil Width | mm | 800-1100 |
| Thickness | mm | Min.1 |
| Coil O.D. | mm | Max.Φ1800 |
| Coil I.D. | mm | Φ605 (Excluding spool) Φ600 (Including spool, spool I.D.) |
| Spool Dimension | mm | Φ600/Φ660×1250 |
| Max. Coil Weight | kg | 6000 (Excluding spool) |
Equipment Main Technical Specification
| Type | | Hydraulic 4-Hi No-reversing Cold Rolling Mill |
| Rolling Force | kN | 16000 |
| Rolling Torque | kN·m | Max.200 |
| Threading Speed | m/min | 15 (Max.) |
Work Roll Speed (New Roll) | m/min | Max.400m/min (High Speed Gear Max.) Max.200m/min (Low Speed Gear Max.) |
| Uncoiler Tension | kg | 450～18000 |
| Recoiler Tension | kg | 450～18000 |
| Work Roll | mm | Φ450×1300 |
| Back Up Roll | mm | Φ1250×1250 |
| Reduction | | 20%～40% |
| Forward Slip | | 0～15% |
Tension Precision | | Stable Status: ±1.5% |
| Acceleration/Deceleration: ±3% |
Speed Precision
| | Stable Status: ±0.1% Nominal Speed |
| Acceleration/Deceleration: 0.5% |
| Accelerate/decelerate Time | | At max. speed ——Normal Stop 45s ——Quick Stop 20s ——Urgent Stop 10s |
| Line Direction: To be defined (watch the line when standing at
operation side) |
| Uncoiler&Recoiler Type: Top Uncoiling, TOP Recoiling |
Finish Product Guarantee
| Thickness Precision (AGC System ensure)
| | Rated Exit Thickness/mm | Thickness Deviation/um |
| 1.0-20 | ±1.2% |
| Flatness Precision | | Manual control, flatness is 30-40I, ensured by operator, equipment
can ensure the operation be normal and reliable.
|
Note: The above specifications are for reference only. Customized
cold rolling mill as per customer's requirements and demands would
be available.
The Φ450×1300/Φ1250×1250mm 4-Hi non-reversible cold rolling mill is
widely used in industries such as steel, aluminum, automotive,
aerospace, and electrical appliances. It enables precise and
efficient metal processing, providing high-quality products with
controlled thickness, improved surface finish, and desired material
properties.
Packaging:
All parts of the Φ450×1300/Φ1250×1250mm 4-Hi non-reversible cold rolling mill are fixed inside container by steel wires and special PET straps,
in order to make sure all parts will not move during transportation
and avoid any kinds of damage of machine and container.
Shipping:
Sea Freight: The Φ450×1300/Φ1250×1250mm 4-Hi non-reversible cold rolling mill is often shipped via ocean freight, especially for international
transportation. The equipment is securely loaded into shipping
containers or flat racks, which are then loaded onto cargo vessels.
This mode is suitable for long-distance shipping and can
accommodate larger and heavier cold rolling mill.
Air Freight: When there is a need for fast delivery or for shipping smaller or
lighter cold rolling mill, air freight can be used. The equipment
is packed and loaded onto aircraft for transportation. Air freight
is typically more expensive than ocean freight but offers quicker
transit times.
1) Customized service, including consulating, design, technical
proposal, one-stop servicing.
2) High cost-effective product.
3) All-around pre-sales & after-sales services.
Q1. What types of materials can the mill process?
The mill is designed to process 1000, 3000, and 8000 series
aluminum and aluminum alloy materials.
Q2. What is the thickness range for input materials?
The mill can handle input material thicknesses up to 10mm and
produce finished products as thin as 0.2mm.
Q3. What are the dimensions and specifications of the coils?
The coil width range is between 800mm and 1250mm, with a maximum
coil outer diameter (OD) of 1600mm and a coil inner diameter (ID)
of 510mm.
Q4. What is the maximum coil weight that can be processed?
The mill can process coils with a maximum weight of 6000kg.
Q5. What is the maximum rolling force and speed?
The maximum rolling force is 8000kN, and the rolling speed can
reach up to 500m/min.
