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GB/T 26895-2025Grain and oil machinery - Gravity separators for destoning (English PDF)

粮油机械 重力分级去石机

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 31, 2025

Implementation date

May 1, 2026

Scope

GB/T 26895-2025 is the English-translated version of 粮油机械 重力分级去石机.

GB/T 26895-2025 is the Chinese standard "Grain and oil machinery - Gravity separators for destoning". Its scope clause reads: This document defines the terminology and definitions of gravity classifiers for destoning machines, and specifies their working principle, models and basic parameters, technical requirements, and inspection procedures.

The test rules and requirements for marking, packaging, transportation and storage are described, along with the corresponding test methods. This document applies to the design, manufacture, and quality inspection of grading and destoning equipment used in grain cleaning processes. Its clauses include terms and definitions.

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Document preview — GB/T 26895-2025

National Standard of the People's Republic of China

ICS
67.260
Classification
X 91
Replacing
GB/T 26895-2011

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

Contents

  • 1 Scope
  • 2 Normative references
  • 3 Terms and Definitions
  • 3.1 Gravity separator for destoning
  • 3.2 Mass fraction of light grains
  • 3.3 Mass fraction of heavy grains
  • 3.4 stone removal rate

1 Scope

This document defines the terminology and definitions of gravity classifiers for destoning machines, and specifies their working principle, models and basic parameters, technical requirements, and inspection procedures.

The test rules and requirements for marking, packaging, transportation and storage are described, along with the corresponding test methods.

This document applies to the design, manufacture, and quality inspection of grading and destoning equipment used in grain cleaning processes.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are listed below.

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 1351 Wheat

GB/T 5226.1 Electrical Safety of Machinery - Electrical Equipment of Machinery - Part 1.General Technical Conditions

GB/T 13306 Nameplates

GB/T 17248.3 Noise emitted by acoustic machines and equipment shall be determined using approximate environmental correction at the working position and other specified locations.

The emitted sound pressure level

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

GB/T 24857 General Technical Conditions for Plate Parts and Plate-Shaped Steel Components of Grain and Oil Machinery

GB/T 25218 General Technical Requirements for Coating of Grain and Oil Machinery Products

GBZ 158 Occupational Hazard Warning Signs in the Workplace

GBZ /T 192.1 Determination of dust in workplace air – Part 1.Total dust concentration

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Gravity separator for destoning

Equipment for grading grains and removing stones based on differences in grain particle density and aerodynamic properties.

3.2 Mass fraction of light grains

The mass fraction of the light material outlet flow rate from the upper screen relative to the total material flow rate.

3.3 Mass fraction of heavy grains

The mass fraction of the heavy material outlet flow rate in the lower screen relative to the total material flow rate.

3.4 stone removal rate

After being processed by a gravity grading destoner, the number of stones removed represents the percentage of stones in the original grain entering the machine. […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

Referenced standards

Editions of GB/T 26895

EditionTitleRevisionStatus
GB/T 26895-2025Grain and oil machinery - Gravity separator for destoningcurrent editionCurrent
GB/T 26895-2011Grain and oil machinery -- Gravity grading stonerprevious editionIn force

This page sells the current edition, GB/T 26895-2025. Earlier editions are listed for reference only.

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