Hydraulic 4-Roller Rolling Machine

Working roll material and performance: The four working rolls are usually made of 42CrMo material, which is forged and tempered, HB220 - 260, with good comprehensive mechanical properties, high strength, strong wear resistance, suitable for high-load work, and long service life.

• Bearing design: The working roll end bearing adopts rolling bearing, which has a small friction coefficient, can reduce reactive power loss and save energy.

• Displacement control and precision: The lifting and displacement of the lower roller and side roller are controlled by a computer, with automatic leveling and digital display on the screen. The synchronization accuracy can reach ±0.2mm (some models can reach ±0.15㎜), with high plate rolling accuracy and easy operation.

• Encoder and seam positioning: The encoder is installed on the upper roller to accurately find the rotation position of the roller, which is convenient for finding the seam of the rolled tube.

• Movable operating table: There is a movable operating table, and the touch screen displays the position of the three working rollers, which allows the operator to see at a glance and is more convenient to use.

• Processing capability: metal sheets can be processed and rolled into various parts such as cylinders, cones and curved plates. Various specifications of cylindrical and curved workpieces can be pre-bent and rolled at one time. With the help of auxiliary devices, conical cylinders can also be rolled.

• Pre-bending function: It has the function of pre-bending the ends of the plates. When the steel plates are loaded, the pre-bending and rolling of the ends of the plates can be completed without turning around. The remaining straight edge of the pre-bending is ≤1.5 times the thickness of the plate.

• Efficient transmission system: The four-roller transmission system can roll the upper and lower rollers and the left and right rollers at the same time when rolling metal plates and pipes. Moreover, the upper and lower rollers can move at the same time, which reduces the rolling time and improves work efficiency 1.

• Fast rolling: The time required from loading to rolling should not exceed 2 minutes 2.

Quality

• Uniform pressure: All four rollers are electrified. During the operation of the machine, each roller can withstand a lot of pressure, ensuring that the rolled plates and pipes have uniform pressure and a smoother surface. It can also reduce the stress and angle of the material, and reduce the deformation and brittle cracking of the steel plate.

• High accuracy and repeatability: The control system used is more advanced and can achieve extremely high accuracy.

The main features of the mechanical three-roller asymmetric plate rolling machine: The structure of the machine is a three-roller asymmetrical type. The upper roller is the main drive, and the lower roller moves vertically up and down, and the lower roller gear meshes with the upper roller gear as the main drive; The side roller performs tilting and lifting movements and has dual functions of pre-bending and rounding. Compact structure, easy operation and maintenance.

This machine is suitable for bending and deforming metal sheets. It can roll round, arc-shaped and tapered workpieces within a certain range. It has a plate end pre-bending function. The two lower rollers of this model are driving rollers and can move horizontally. The upper roller is a driven roller that can move up and down, and the transmission shafts are connected by universal couplings.

Roll the plate according to the parameters specified by the plate rolling machine. The thickness of the plate is 20mm, the maximum length is 2500mm, and the yield limit of the plate rolling material is less than 250Mpa.