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GB/T 34669-2026Grain and oil machinery - Rolls (English PDF)

粮油机械　磨辊

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

January 28, 2026

Implementation date

August 1, 2026

Scope

GB/T 34669-2026 is the English-translated version of 粮油机械　磨辊.

GB/T 34669-2026 is the Chinese standard "Grain and oil machinery - Rolls". Its scope clause reads: This document defines the terminology and definitions for grinding rollers, and specifies their classification, models and basic parameters, technical requirements, inspection rules, marking, and packaging.

The transportation and storage requirements are described, along with the corresponding testing methods. This document applies to bimetallic centrifugally cast chilled alloy cast iron grinding rollers. Its clauses include terms and definitions.

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Document preview — GB/T 34669-2026

National Standard of the People's Republic of China

ICS: 67.260
Classification: X 91
Replacing: GB/T 34669-2017

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Terms and Definitions
3.1 groundroller
3.2 sandblasting roller
3.3 Groovedrol wire drawing roller
3.4 Convexity rolcamber
3.5 hardness

1 Scope

This document defines the terminology and definitions for grinding rollers, and specifies their classification, models and basic parameters, technical requirements, inspection rules, marking, and packaging.

The transportation and storage requirements are described, along with the corresponding testing methods.

This document applies to bimetallic centrifugally cast chilled alloy cast iron grinding rollers.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 191 Packaging and Storage Graphic Symbols

GB/T 9443 Penetrant testing of cast steel and cast iron parts

GB/T 13306 Nameplates

GB/T 13313 Test methods for Shore and Leeb hardness of rolling mill rolls

GB/T 15822.1 Nondestructive testing – Magnetic particle testing – Part 1.General principles

GB/T 24854 General Technical Requirements for Packaging of Grain and Oil Machinery Products

GB/T 24855 General Technical Requirements for the Assembly of Grain and Oil Machinery

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 groundroller

A grinding roller with a certain gloss on its surface.

3.2 sandblasting roller

A grinding roller with a slightly rough and dull surface.

3.3 Groovedrol wire drawing roller

The roller body is cut into a grinding roller with certain grinding parameters by a wire drawing machine.

3.4 Convexity rolcamber

The difference between the maximum diameter of the central area of the roller and the minimum diameter of both ends of the roller.

3.5 hardness

The ability of the roller surface to resist the indentation of a hard object.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

GB/T 25728-2024Grain and oil machinery—Pneumatic rollermill

Editions of GB/T 34669

Edition	Title	Revision	Status
GB/T 34669-2026	Grain and oil machinery - Rolls	current edition	Current
GB/T 34669-2017	Grain and oil machinery - Rolls	previous edition	Superseded

This page sells the current edition, GB/T 34669-2026. Earlier editions are listed for reference only.

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