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Rolling Mill Machinery

890 products


Semi-Automatic Wire Rod Rolling Mill

5000000.00 - 7000000.00 INR (Approx.)

MOQ - 1 Unit/Units

New Delhi


Rolling Mill Machinery By SACH KHAND MACHINE TOOLS

100000.00 - 500000.00 INR (Approx.)

MOQ - 1 Piece/Pieces

Mira Bhayandar

What is rolling mill machinery?

Rolling is a procedure used in metalworking to reduce the thickness and uniformly shape metal stock by passing it between one or more pairs of rolls. This process can be compared to rolling out dough. 

The industry standard for automatic and semi-automatic rolling mill production in India, for both small and large sizes of steel. In terms of Bar & Wire Rod Mills and Structural Mills, they are the go-to experts for full turn-key projects.

The rolling process can be broken down into several categories based on the metal's temperature. Hot rolling refers to a procedure in which the metal is rolled at a temperature higher than its recrystallization temperature. Cold rolling refers to a method in which the metal's temperature is kept below its recrystallization temperature. 

Metal, mainly steel, is rolled into various shapes and sizes in rolling mills, including I-beams, structural steel, channel stock, angle stock,  etc.), rails and bar stock. Roll stands, each housing a pair of rolls, are linked together to form rolling mills.

Working principle of rolling mill machinery

At room temperature, plastic deformation occurs along a linear axis of the sheet. This method is helpful for mass-producing an exact shape and is used to create longer pieces. A rolling machine can undergo the following operations:

1. Roll Bending

Create a cylinder-shaped product from a flat metal plate or steel using the roll bending procedure. A plate rolling operation, roll bending process, or roll forming process is ideal for mass producing lengthy or many components. 

In this method, a long strip of metal is continuously bent by passing it through a series of rolls that each contribute to a smaller portion of the overall bend.

2. Flat Rolling

The most fundamental type of rolling, known as "flat rolling," produces a material with a rectangular cross section at both ends. The rolling mill machinery material is introduced between a pair of counter-rotating rollers with a gap smaller than the initial material's thickness. 

This results in a deformation, and the resulting thinning of the material elongates it. Materials are forced through the process by the friction generated at the contact point between the material and the rolls.

3. Ring Rolling 

To increase the diameter of a ring, this rolling process is a subset of hot rolling. An inner idler roll and a driven roll are used to shape a thick-walled ring as the starting material and the workpiece, respectively. The ring is squeezed from the outside by the driving roll. As the wall thickness lowers and the diameter increases during rolling, we get a decreasing wall thickness rolling process.

4. Controlled Rolling 

The controlled rolling technique combines controlled deformation and heat treatment into a single thermomechanical operation. Once the workpiece has been heated to above its re-crystallization temperature, further heat treating is unnecessary. 

The several types of heat treating allow for the manipulation of the size, toughness, nature, and distribution of transformation products including ferrite, pearlite, austenite, bainite, and martensite in steel, among others. Both precipitation hardening and hardness regulation can be induced.

5. Forge Rolling

Cross-sectional area reduction in a heated bar or billet is facilitated by the forge rolling procedure, which is a longitudinal rolling process. They are able to accomplish this by being fed in between two opposing revolving roll segments.

The primary goal of this operation is to ensure uniform distribution of the material throughout following die forging operations. Because of this, die forging methods can improve material utilization, process forces, and component surface quality.

Types of Rolling Mill Machinery

1. Planetary Rolling Mill machinery 

In this mill, two big backing rolls are flanked by many smaller planetary rolls. This mill's standout quality is its capability for one-pass hot reduction, from slab to coiled strip. Feed rolls are used to introduce the slab to the mill, and a set of planishing rolls are used to improve the surface polish as the slab exits the mill.

2. Continuous Mill Machinery

For a continuous rolling mill to function, the same quantity of material must be fed into each stand over a predetermined time period. Reducing the cross section requires an equal and opposite increase in velocity. Each stand of rolls has its input speed equal to the output speed of the previous stand, so the speeds of the stands are synchronized. In addition to feeding the stock into the rolls, the uni-coiler and wind up reel apply front tension to the strip from behind.

3. Cluster Rolling Mill Machinery

Each of the two working rolls in a cluster rolling mill is supported by two or more of the bigger backup rolls that are capable of rolling hard materials, making this a variant of the four-high rolling mill. To get the job done, you might need to use long, thin rolls. These mills can roll hard materials including stainless steel, titanium alloy, and nickel alloy.

4. Four-high Rolling mill machinery

For extremely precise thickness adjustments, a four-high rolling mill is used. When backup rolls are employed, roll deflection problems are negated, allowing the use of smaller work rolls. By decreasing the diameter of the work rolls, we can lower the amount of energy necessary to reduce the material, the separation force needed to do the reductions, and the thickness consistency of the output.

5. Three high Rolling Mills

As can be seen in the diagram below, it comprises of three rolls stacked in a vertical orientation. Like two high mills, the first and second rollers rotate in the opposite way. The second and third rolls always rotate in the opposite direction (path). Never will you find an instance when two of the three rolls are rotating in opposite directions with respect to their bearings. This will mill is advantageous since it only requires two passes through the rolls (the first between the first and second, and the second between the second and third) to do the operation.

Uses & benefits of rolling mill machinery

There are many benefits to using a rolling mill, and they apply equally to both large and small firms.

1. Perfect for Metalworking

For a very long time, rolling mills have been the ideal technology for working with metals of varied densities. Small-scale businesses who place a premium on efficiency and quality will appreciate the time and effort saved by using these devices to beat and flatten metals into sheets.

2. Generally Reliable

The metal sheets produced by tiny factories are typically smaller in size and fewer in number than those produced by large factories, hence these factories require the maximum level of precision in their finished goods. Rolling mills are essential for maintaining consistent homogeneity along the whole length of the material.

3. Conveniently Simple to Operate

If you take the time to understand the fundamentals, you can quickly become proficient with high-quality rolling mills. You can get a trial run to find out how to run the mills more effectively.

4. Superior Productivity Rate

No matter how big or small the factory is, maximizing output in as little time as possible is always a top priority. The production rate can be increased with a one-time investment in rolling mills. These machines are a good investment because of the time and money they save you while also guaranteeing precision and efficiency.

5. Spend less on maintenance and operations.

There are two main types of rolling mills: those that are powered by hand and those that use electricity. Manufacturers on a smaller scale will find that rolling mills that they can operate with their own hands save them money. The long-term savings from using electric rolling mills are substantial.


With any luck, your questions about Rolling Mill Types have been answered. Feel free to get in touch with a supplier or manufacturer or ask any questions you have concerning the "Types of Rolling Mill" down below.

Rolling mill components undergo rigorous testing before being shipped to manufacturing facilities. Project planning and engineering, parts and materials, maintenance and fixes, a service agreement plan, and efficiency upgrades are all part of the service offering. Reliable rolling mill plants invest in highly-trained engineers who meet the aforementioned criteria for a well-functioning rolling mill.

FAQ's: Rolling Mill Machinery

Q. What are the types of rolling mill Machines?

Ans. The different types of rolling mill machines are Two high Rolling mills machines, Three high Rolling mills machines, Four High Rolling mills machines, Tandem Rolling machines, Cluster Rolling mill machines, and Planetary Rolling mill machines. 

Q. How does a rolling mill machine work?

Ans. While the number of rollers used in a rolling mill may vary, at least two are required for operation. A group of rotating rollers grabs the stuff and pushs it along. In the next step, the material is forced through a hole that is narrower than its original thickness. The rollers themselves thin the material down to a smaller finishing thickness than the one it began at. The rolls themselves perform the same purpose as a draw die or swager dies by decreasing the material's cross-sectional area without generating any waste.

Q. What is the cost of rolling mill machine?

Ans. The cost of rolling mill machine in India can be 5 lakhs to 10 lakhs. However, there are a lot of brands and manufacturers that offer different rolling mills machine that cost differently.