Rolling Mill Stand Housing

Product Specifications

Technical details and manufacturing context for Rolling Mill Stand Housing

Definition

In a Finishing Mill Train, the Rolling Mill Stand Housing is the robust, stationary structural component that forms the main body of each rolling stand. It provides the rigid foundation necessary to withstand the immense forces generated during metal rolling operations, ensuring precise alignment and stability of the work rolls, backup rolls, and associated equipment. The housing maintains dimensional accuracy and prevents deflection under load, which is critical for producing metal products with consistent thickness and surface quality. Constructed from cast steel or forged steel, the housing is designed to transfer rolling forces through its columns and windows to the mill foundation. Its high stiffness minimizes elastic deformation under the separating forces created when metal is compressed between the rolls. The housing incorporates windows or openings that allow for the installation, removal, and adjustment of roll assemblies and their chocks. Key parameters include maximum rolling force (5000–10000 kN), roll neck diameter (200–500 mm), roll body length (1000–3000 mm), housing window width (500–1200 mm), and housing window height (1000–2500 mm). Material grades such as ZG270-500 (per GB/T 11352) are specified, with tensile strength of 500–650 MPa, yield strength of 270–350 MPa, and hardness of 160–220 HBW. Machining tolerance is ±0.05 mm (ISO 2768-m), weight ranges from 20 to 80 tons, and operating temperature is -10 to 60 °C. These values are reference ranges; actual specifications must be confirmed with the manufacturer for the specific model and application. The housing is a critical component in basic metal manufacturing, and its design directly influences product quality and operational reliability.

Working Principle

The housing functions as a load-bearing structure. It transfers the rolling forces from the rolls through its columns and windows to the mill foundation. It is designed with high stiffness to minimize elastic deformation under the separating forces generated when metal is compressed between the rolls. The housing typically incorporates windows or openings that allow for the installation, removal, and adjustment of the roll assemblies and their chocks.

Common Materials

Cast Steel, Forged Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Maximum Rolling Force	5000–10000 kN	Determines the maximum reduction capability
Roll Neck Diameter	200–500 mm	Must match bearing size and roll strength
Roll Body Length	1000–3000 mm	Determines the maximum strip width
Housing Window Width	500–1200 mm	Accommodates roll chocks and adjustment
Housing Window Height	1000–2500 mm	Determines maximum roll diameter
Material Grade	ZG270-500	Cast steel with high strength and toughnessGB/T 11352
Tensile Strength	500–650 MPa	Ensures structural integrity under loadGB/T 11352
Yield Strength	270–350 MPa	Prevents permanent deformationGB/T 11352
Hardness	160–220 HBW	Balances wear resistance and machinability
Machining Tolerance	±0.05 mm	Critical for accurate roll alignmentISO 2768-m
Weight	20–80 t	Affects foundation and crane requirements
Operating Temperature	-10–60 °C	Beyond this range material properties degrade

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 Body
The housing itself: encloses and locates the internal parts and provides the mounting interface.
Column
The vertical structural members that bear the primary rolling load and connect the top and bottom crossheads.

Material: Cast Steel
Window Liner Part
Wear plates installed on the inner surfaces of the housing window to protect against abrasion from the roll chocks.

Material: Hardened Steel
Screwdown Mechanism Mounting Pad Part
The machined surface on the top crosshead for attaching the mechanism that adjusts the vertical position of the top roll.

Material: Forged Steel

Applied To / Applications

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

Finishing Mill Train

View system integration details

Manufacturers of Rolling Mill Stand Housing

Manufacturer profiles associated with Rolling Mill Stand Housing.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 6 September 2026

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Frequently Asked Questions

What is the primary function of a rolling mill stand housing?

The housing provides a rigid structural frame that supports the rolls, bearings, and adjustment mechanisms. It transfers rolling forces to the foundation and maintains alignment to ensure consistent product thickness and surface quality.

What materials are commonly used for the housing?

Common materials include cast steel and forged steel. For example, cast steel grade ZG270-500 per GB/T 11352 is listed, with tensile strength of 500–650 MPa and yield strength of 270–350 MPa. Actual material selection depends on the application.

How does the housing affect rolling mill performance?

The housing's stiffness minimizes deflection under load, which is critical for maintaining roll gap accuracy. Its window dimensions accommodate roll assemblies and chocks, influencing the maximum roll diameter and strip width that can be processed.

What parameters should be verified before selecting a housing?

Key parameters include maximum rolling force, roll neck diameter, roll body length, housing window width and height, material grade, tensile and yield strength, hardness, machining tolerance, weight, and operating temperature. Always confirm these values with the manufacturer for your specific model.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 50 MPa (static load), up to 100 MPa (dynamic shock load)
other spec:	Roll separating force: 10-50 MN typical, roll bending moment: 1-10 MN·m, vibration tolerance: <0.5 mm displacement at 10-100 Hz
temperature:	Ambient to 150°C (operational), up to 300°C (peak during hot rolling)

Product Specifications

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