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GB/T 19819-2025Saw gin (English PDF)

锯齿轧花机

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 31, 2025

Implementation date

February 1, 2026

Scope

GB/T 19819-2025 is the English-translated version of 锯齿轧花机.

GB/T 19819-2025 is the Chinese standard "Saw gin". Its scope clause reads: This document specifies the product parameters and models, technical requirements, sampling, inspection rules, as well as marking, packaging, storage, and transportation of sawtooth cotton gins.

The text describes the corresponding experimental methods. This document applies to the design, manufacture, and quality inspection of sawtooth cotton ginning machines (hereinafter referred to as cotton ginning machines). Its clauses include terms and definitions.

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Document preview — GB/T 19819-2025

National Standard of the People's Republic of China

ICS: 65.040.20
Classification: B 93
Replacing: GB/T 19819-2005

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

Preface
Introduction
1.Scope
2 Normative References
3.Terms and Definitions
4.Product parameters and models
5.Technical Requirements
6.Test Methods
7 Inspection Rules
8.Marking, Packaging, Storage and Transport
Appendix A (Normative) Calculation of Allowable Rotor Imbalance
Appendix B (Normative) Determination of Cottonseed Hair Rate

1 Scope

This document specifies the product parameters and models, technical requirements, sampling, inspection rules, as well as marking, packaging, storage, and transportation of sawtooth cotton gins.

The text describes the corresponding experimental methods.

This document applies to the design, manufacture, and quality inspection of sawtooth cotton ginning machines (hereinafter referred to as cotton ginning machines).

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 Pictorial Symbols for Packaging and Storage

GB 1103.1 Cotton - Part 1.Saw-ginned lint cotton

GB/T 6388 Transport Packaging Receipt and Delivery Marks

GB/T 9239.1-2006 Mechanical Vibration Constant-State (Rigid) Rotor Balancing Quality Requirements Part 1.Specifications and Balancing Tolerances test

GB/T 16754 Design Principles for Emergency Stop Functions in Mechanical Safety

GB 18399 Safety Requirements for Cotton Processing Machinery

GB/T 32139-2015 Cotton Processing Terminology

GH/T 1084 Saw blades for saw-toothed cotton ginning machines and saw-toothed delinting machines

3 Terms and Definitions

The terms and definitions defined in GB/T 32139-2015, as well as the following terms and definitions, apply to this document.

3.1 saw cylinder

The saw blades are strung together on a shaft to form a cylindrical roller.

[Source. GB/T 32139-2015, 3.1.1.30]

3.2 Ribsinaline

Rib components arranged in a certain number and according to certain requirements.

[Source. GB/T 32139-2015, 3.1.1.14]

3.3

The percentage of the weight of the fuzz on a given weight of cottonseed to the weight of the cottonseed sample.

[Source. GB/T 32139-2015, 2.4.5]

3.4

The percentage of cotton fiber mass in the impurities discharged during the cleaning process, which are mainly infertile seeds.

LY/T 3022 | GB 16151.12 | GB/T 21962 | GB/T 21307 | GB/T 26968 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.

Referenced standards

Normative references

Cited by

GB/T 22335-2018Technical specifications for cotton processing

Editions of GB/T 19819

Edition	Title	Revision	Status
GB/T 19819-2025	Saw gin	current edition	Current
GB/T 19819-2005	Saw gin	previous edition	In force

This page sells the current edition, GB/T 19819-2025. Earlier editions are listed for reference only.

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