Rolling Stand for Metal Rolling Mills

Product Specifications

Technical details and manufacturing context for Rolling Stand

Definition

In an Industrial Metal Rolling Mill, the Rolling Stand serves as the core structural component that provides rigid support for the entire rolling assembly. It houses the work rolls, backup rolls, roll bearings, and adjustment systems (screwdown mechanisms), ensuring precise alignment and stability during the metal deformation process. The stand withstands immense rolling forces while maintaining dimensional accuracy for consistent product quality. Constructed from cast steel or forged steel, the stand is designed to accommodate a range of roll face widths from 500 to 2000 mm and roll diameters from 200 to 800 mm. Its housing window dimensions vary between 300–1200 mm in width and 400–1500 mm in height, allowing flexibility for different mill configurations. The rolling force capacity spans from 500 to 5000 kN, depending on the stand's size and material grade. Typical material grades include ZG270-500 cast steel per GB/T 11352, with tensile strength ranging from 500 to 600 MPa and yield strength from 270 to 320 MPa. After heat treatment, the hardness is typically 150–200 HBW per GB/T 231.1. A single stand weighs between 5 and 30 tons. The operating temperature range is -20 to 80 °C. Surface treatment includes blast cleaning to Sa2.5 per ISO 8501-1 before painting. These parameters serve as reference ranges; actual values must be confirmed for the specific model and application. The stand's rigidity prevents deflection under high rolling forces, and integrated adjustment mechanisms allow precise control of roll gap and alignment. For procurement, verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The Rolling Stand functions as a stationary frame that contains and positions the rolling components. During operation, metal stock passes through the rolls mounted within the stand, with the stand's rigidity preventing deflection under high rolling forces. Adjustment mechanisms integrated into the stand allow for precise control of roll gap and alignment. The stand absorbs and distributes the rolling forces to the foundation, ensuring stable operation. Its design must account for thermal expansion, dynamic loads, and maintenance access. Proper alignment and preloading of bearings are critical to prevent premature wear and maintain product quality. The stand's structural integrity is verified through material testing and dimensional inspection. Over time, fatigue and wear may occur, so periodic inspection and maintenance are necessary. If cracks or excessive deformation are detected, the stand may need repair or replacement. The stand's performance is influenced by the material grade, heat treatment, and machining accuracy. Selection of a stand depends on the required rolling force, roll dimensions, and mill layout. Always verify the stand's capacity and compliance with applicable standards for your specific application.

Common Materials

Cast steel, Forged steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rolling Force Capacity	500–5000 kN	Maximum force the stand can withstand
Roll Face Width	500–2000 mm	Width of rolls supported
Roll Diameter	200–800 mm	Diameter of rolls accommodated
Housing Window Width	300–1200 mm	Width of the housing window
Housing Window Height	400–1500 mm	Height of the housing window
Material Grade	ZG270-500	Cast steel for high strengthGB/T 11352
Tensile Strength	500–600 MPa	Minimum tensile strengthGB/T 11352
Yield Strength	270–320 MPa	Minimum yield strengthGB/T 11352
Hardness	150–200 HBW	Brinell hardness after heat treatmentGB/T 231.1
Weight	5–30 t	Single stand weight
Operating Temperature	-20–80 °C	Ambient temperature range
Surface Treatment	Sa2.5	Blast cleaning before paintingISO 8501-1

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Housing Posts Part
Vertical structural members that bear the rolling load and provide mounting points for other components

Material: Cast steel
Top Cap Part
Horizontal member connecting the tops of housing posts, completing the rigid frame structure

Material: Forged steel
Window Liners Part
Wear plates installed on housing posts to protect against roll and bearing contact

Material: Alloy steel
Roll Gap Adjustment Mechanism
Sets and holds the roll gap and roll alignment within the stand.
Bearing Housings
Seat the roll bearings in the stand window and take the rolling load into the posts.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Metal Rolling Mill

View system integration details

Multi-Stand Rolling Mill

View system integration details

Manufacturers of Rolling Stand

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Frequently Asked Questions

What materials are used for rolling stands?

Rolling stands are typically made from cast steel or forged steel. Common cast steel grades include ZG270-500 per GB/T 11352, with tensile strength 500-600 MPa and yield strength 270-320 MPa. Forged steel may also be used for higher strength requirements. The material choice depends on the rolling forces and application.

What is the rolling force capacity range?

The rolling force capacity of a rolling stand typically ranges from 500 to 5000 kN, depending on the stand's size, material, and design. This value must be confirmed for the specific model and application, as it is a critical selection parameter.

What standards apply to rolling stands?

Relevant standards include GB/T 11352 for cast steel grades, GB/T 231.1 for hardness testing, and ISO 8501-1 for surface preparation. These standards are used for material specification and quality verification. Compliance should be confirmed with the manufacturer.

How do I select the right rolling stand?

Selection requires determining the required rolling force, roll face width, roll diameter, and housing window dimensions. Also consider operating temperature, weight, and surface treatment requirements. Always verify the stand's specifications with the manufacturer to ensure it meets your mill's needs.

Data Basis

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pressure:	N/A (structural component, not pressure vessel)
roll force:	Up to 50 MN maximum for heavy mills
temperature:	Ambient to 150°C (typical), up to 300°C with special materials
load capacity:	50-5000 tons depending on design
vibration tolerance:	≤ 5 mm/s RMS velocity

Rolling Stand

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards