4 Hi Continuous Cold Rolling Mill

4-Hi Continuous Cold Rolling Mill for Metal Coils with Four Rollers

1. Introduction:
Due to different numbers of rollers, the metal coil cold rolling mill is divided into 2 Hi, 4 Hi, 6 Hi, and 12 Hi AGC.
The 4-Hi cold rolling mill, one of metal coil cold rolling mill, is made from good quality raw material. A four-high cold rolling mill has four rollers, two small and two large. The two small rolls are work rolls in contact with metal coil, and the two large rolls are backup rolls which contact the back side of the small work rolls. At the same time, we are upgrading with the latest technological equipments when producing this cold rolling mill.

2. Features:

• The 4-Hi cold rolling mill is a kind of portable type.
• One stand and two frames are made from fabricated steel plates.
• The number 2 Rolls on this cold rolling mill are made of chilled material.
• It is equipped with heavy duty reduction gear.
• The screw down system is manual.
• We adopt one number C.I. casting flywheels.

3. Due to the different of many aspects, such as input coils, output coils, max roiling force and max rolling force, etc, the 4-Hi cold rolling mill is divided into 8 types:

Advantages:

• The second type of cold rolling mill controls rolling speed and its tension.
• The stable rolling is ensured.
• This machinery great guarantee the safety.
• Hydraulic AGC System
• Functions: AGC (hydraulic control of press-down seam), AFC (constant rolling force control), pre-control of thickness gauge, monitoring, etc
• Precision:
• Stable rolling: 0.3mm ±4.5μm; 0.5-0.8mm ±7μm
• Speed-up and speed-down rolling: 2%h≤±10μm

4. Technical Parameters:

Table 4-1:

Table 4-2:

Note: The above parameters are for reference only, it could be manufactured according to customer's requirements.

5. Packaging

Machine will be fixed inside container by steel wire and special PET strap, in order to make sure all parts will not move during transportation and avoid any kinds of damage of machine and container.

7. Warranty term: 12 months (excluding easy-broken parts)

8. Our service and features:

8.1 Design: We have a matured technical team with rich experience to develop and deisng the machines according to customer's demand and requirements.
8.2 This is a very perfect and durable equipment. We have more than 10 years experiences.

8.3 This kind of machine has the best quality and the best price. It has accurate measurement and easy operating.

8.4 We provide technical support (both before, during and after sales), production, installation, commissioning and maintenance service to all customers.
8.5 Our product has been exported to many regions and won high reputation because of the high quality and reasonable price.