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W11-20X2500 Plate Rolling Machine

Product details

一、Main Overview

The plate rolling process of a plate involves continuous three-point bending of plates. Depending on the rolling temperature, it can be divided into cold rolling, hot rolling and warm rolling. It is a mechanical equipment mainly used to bend metal plates of a certain thickness into cylindrical, arc-shaped, rectangular and other shapes with fixed or variable curvatures, and is one of the essential mechanical equipment in industries including metallurgy, building materials, petroleum, chemical engineering, water conservancy and electric power, bridge construction, military industry, coal, mining, shipbuilding, boiler manufacturing, aviation, and power transmission and transformation equipment manufacturing.
The machine adopts a three-roll symmetrical structure. The top roll moves vertically up and down at the symmetrical central position of the two bottom rolls, with its lifting motion driven by a lead screw, nut and worm drive system. The output gear of the reducer meshes with the gears of the bottom rolls to drive the two bottom rolls to rotate synchronously, supplying torque for plate rolling. The machine features an integrated structure; both the working section and main transmission section are mounted on a rigid welded base, facilitating machine installation and commissioning.

二、Main Technical Parameters

	Project	Unit	parameter
Serial Number	Device Name		Three-Roll Symmetrical Plate
Serial Number	Specification Model		W11-20x2500
1	Maximum Plate Rolling Thickness	mm	T20B2500 850 (0 s≤245MPa)
2	Maximum plate rolling width	mm	2500
3	Working length of the roller	mm	2500
4	Residual straight edge thickness	mm	≤4 times the plate thickness
5	Coiling speed	m/min	4.5
6	Upper roll diameter	mm	D340
7	Lower roll diameter	mm	D260
8	Center distance between two sticks	mm	440
9	Main motor power	Kw	15

三、Main structure

The machine adopts a three-roll symmetrical structure. The upper roll performs vertical lifting movement at the symmetrical central position of the two lower rolls, with its lifting motion driven by a lead screw, nut and worm gear transmission mechanism. The output gear of the reducer meshes with the gears of the lower rolls to drive the two lower rolls to rotate synchronously, providing torque for plate rolling. The machine is of an integral structure; both the working section and the main transmission section are mounted on a rigid welded base, facilitating the installation and commissioning of the equipment.

3.1 Working Section

The working section consists of the top roll assembly, bottom roll assembly, top roll screwdown device, balancing device, tilting section, housing and base, etc.

3.1.1 Top Roll Assembly

The top roll assembly is composed of the top roll, chock, SF-2 composite bearing and so on.

(1) Material and processing method of the top roller

(2) All top work rolls are made of high-strength roll steel and processed through multiple procedures including precision lathe machining (Note: The machining procedures of rollers vary according to different user requirements). This strictly ensures high surface contact strength of the work rolls, leaving no indentations on roller surfaces during steel plate rolling and meeting the requirements of long-term steel plate rolling. Medium-frequency quenching is performed on the surface of the finely turned top roller, with hardness ranging from HRC45 to HRC55.

(3) Vertical movement mode of the top roller

The lifting movement of the top roller is realized via screw rod, nut and worm drive.

3.1.2 Lower Roller Assembly

(1) Material and processing method of the lower roller

The lower roller assembly consists of lower rollers, lower roller input gears, SF-2 composite bearings and other components.

All lower work rolls are made of high-strength roll steel and processed through multiple procedures including precision lathe machining (Note: The machining procedures of rollers vary according to different user requirements). This strictly ensures high surface contact strength of the work rolls, leaving no indentations on roller surfaces during steel plate rolling and meeting the requirements of long-term steel plate rolling. Medium-frequency quenching is performed on the surface of the finely turned top roller, with hardness ranging from HRC45 to HRC55.

(2) Rotational movement of the lower rollers

The two lower rollers rotate in opposite directions when the output gear of the reducer driven by the motor meshes with the lower roller gears, providing torque for plate rolling.

3.1.3 Top Screw-down Device

The top roller screw-down device is composed of a motor, a reducer, a worm and worm gear mechanism, a screw rod nut lifting mechanism and other parts.

The picture is for reference only

3.1.4

Balancing Device

The balancing device consists of supports, screw rods, adjusting nuts and other components.

3.1.5

Tilting Section

The tilting section is composed of tilting frames, handles, rotating pins and other parts.

3.1.6 Frame and Base

The frame and the base are welded components and treated with stress relief annealing.

The picture is for reference only

3.1.7 Main Drive Section

The main drive section consists of the main motor, main reducer, coupling, output gear and other components.

四、Electrical Control System

1. The electrical control system includes hardware components such as the main electrical cabinet.

2. Main technical indicators: Mean Time Between Failures (MTBF): ≥20,000 hours

Functions available during the synchronous control of roller lifting displacement.

This system features advanced design, favorable operability, safe and stable operation, excellent fault tolerance, and soft limit protection for all moving components.

Safety protection function: In case of emergencies, operators can quickly and conveniently shut down the equipment and system to guarantee the safety of equipment and personnel.

The pictures are for reference only

五、Coil Plate Process Flow Chart

The picture is for reference only

六、List of Main Components

Names of Major Components	Remarks
top roll	45# steel, hardness HRC45-55
lower roller	45# steel, hardness HRC45-55
bed base	Welded Structural Parts
Tipping Device	Welded Structural Parts
Transmission System	Motor + Reducer + Gear Drive

七、List of Purchased & Outsourced Parts

Serial Number	Name of Goods	Manufacturer and Description	Quantity
1	Main motor	Nantong Yingkai / Well-known domestic brand	1 set
2	electrical appliances	Siemens products / well-known domestic brands	1 set
3	Work roll bearing	ZWZ Wafangdian Bearing, a well-known domestic brand	1 set
4	Main Reducer	Changzhou Olide / Well-known domestic brand	1 set

一、Main Overview

The plate rolling process of a plate involves continuous three-point bending of plates. Depending on the rolling temperature, it can be divided into cold rolling, hot rolling and warm rolling. It is a mechanical equipment mainly used to bend metal plates of a certain thickness into cylindrical, arc-shaped, rectangular and other shapes with fixed or variable curvatures, and is one of the essential mechanical equipment in industries including metallurgy, building materials, petroleum, chemical engineering, water conservancy and electric power, bridge construction, military industry, coal, mining, shipbuilding, boiler manufacturing, aviation, and power transmission and transformation equipment manufacturing.
The machine adopts a three-roll symmetrical structure. The top roll moves vertically up and down at the symmetrical central position of the two bottom rolls, with its lifting motion driven by a lead screw, nut and worm drive system. The output gear of the reducer meshes with the gears of the bottom rolls to drive the two bottom rolls to rotate synchronously, supplying torque for plate rolling. The machine features an integrated structure; both the working section and main transmission section are mounted on a rigid welded base, facilitating machine installation and commissioning.

二、Main Technical Parameters

	Project	Unit	parameter
Serial Number	Device Name		Three-Roll Symmetrical Plate
Serial Number	Specification Model		W11-20x2500
1	Maximum Plate Rolling Thickness	mm	T20B2500 850 (0 s≤245MPa)
2	Maximum plate rolling width	mm	2500
3	Working length of the roller	mm	2500
4	Residual straight edge thickness	mm	≤4 times the plate thickness
5	Coiling speed	m/min	4.5
6	Upper roll diameter	mm	D340
7	Lower roll diameter	mm	D260
8	Center distance between two sticks	mm	440
9	Main motor power	Kw	15

三、Main structure

The machine adopts a three-roll symmetrical structure. The upper roll performs vertical lifting movement at the symmetrical central position of the two lower rolls, with its lifting motion driven by a lead screw, nut and worm gear transmission mechanism. The output gear of the reducer meshes with the gears of the lower rolls to drive the two lower rolls to rotate synchronously, providing torque for plate rolling. The machine is of an integral structure; both the working section and the main transmission section are mounted on a rigid welded base, facilitating the installation and commissioning of the equipment.

3.1 Working Section

The working section consists of the top roll assembly, bottom roll assembly, top roll screwdown device, balancing device, tilting section, housing and base, etc.

3.1.1 Top Roll Assembly

The top roll assembly is composed of the top roll, chock, SF-2 composite bearing and so on.

(1) Material and processing method of the top roller

(2) All top work rolls are made of high-strength roll steel and processed through multiple procedures including precision lathe machining (Note: The machining procedures of rollers vary according to different user requirements). This strictly ensures high surface contact strength of the work rolls, leaving no indentations on roller surfaces during steel plate rolling and meeting the requirements of long-term steel plate rolling. Medium-frequency quenching is performed on the surface of the finely turned top roller, with hardness ranging from HRC45 to HRC55.

(3) Vertical movement mode of the top roller

The lifting movement of the top roller is realized via screw rod, nut and worm drive.

3.1.2 Lower Roller Assembly

(1) Material and processing method of the lower roller

The lower roller assembly consists of lower rollers, lower roller input gears, SF-2 composite bearings and other components.

All lower work rolls are made of high-strength roll steel and processed through multiple procedures including precision lathe machining (Note: The machining procedures of rollers vary according to different user requirements). This strictly ensures high surface contact strength of the work rolls, leaving no indentations on roller surfaces during steel plate rolling and meeting the requirements of long-term steel plate rolling. Medium-frequency quenching is performed on the surface of the finely turned top roller, with hardness ranging from HRC45 to HRC55.

(2) Rotational movement of the lower rollers

The two lower rollers rotate in opposite directions when the output gear of the reducer driven by the motor meshes with the lower roller gears, providing torque for plate rolling.

3.1.3 Top Screw-down Device

The top roller screw-down device is composed of a motor, a reducer, a worm and worm gear mechanism, a screw rod nut lifting mechanism and other parts.

The picture is for reference only

3.1.4

Balancing Device

The balancing device consists of supports, screw rods, adjusting nuts and other components.

3.1.5

Tilting Section

The tilting section is composed of tilting frames, handles, rotating pins and other parts.

3.1.6 Frame and Base

The frame and the base are welded components and treated with stress relief annealing.

The picture is for reference only

3.1.7 Main Drive Section

The main drive section consists of the main motor, main reducer, coupling, output gear and other components.

四、Electrical Control System

1. The electrical control system includes hardware components such as the main electrical cabinet.

2. Main technical indicators: Mean Time Between Failures (MTBF): ≥20,000 hours

Functions available during the synchronous control of roller lifting displacement.

This system features advanced design, favorable operability, safe and stable operation, excellent fault tolerance, and soft limit protection for all moving components.

Safety protection function: In case of emergencies, operators can quickly and conveniently shut down the equipment and system to guarantee the safety of equipment and personnel.

The pictures are for reference only

五、Coil Plate Process Flow Chart

The picture is for reference only

六、List of Main Components

Names of Major Components	Remarks
top roll	45# steel, hardness HRC45-55
lower roller	45# steel, hardness HRC45-55
bed base	Welded Structural Parts
Tipping Device	Welded Structural Parts
Transmission System	Motor + Reducer + Gear Drive

七、List of Purchased & Outsourced Parts

Serial Number	Name of Goods	Manufacturer and Description	Quantity
1	Main motor	Nantong Yingkai / Well-known domestic brand	1 set
2	electrical appliances	Siemens products / well-known domestic brands	1 set
3	Work roll bearing	ZWZ Wafangdian Bearing, a well-known domestic brand	1 set
4	Main Reducer	Changzhou Olide / Well-known domestic brand	1 set

Telephone: +8618862727682

Mailto：lin@wulkaneng.com

Address: No. 1 Building, J Unit, No. 2222 Ring Road, Jiading District, Shanghai

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