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GB/T 19819-2025 English PDF

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GB/T 19819-2025: Saw gin

GB/T 19819: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 19819-2025	English	439	Add to Cart	4 days [Need to translate]	Saw gin		GB/T 19819-2025
GB/T 19819-2005	English	259	Add to Cart	3 days [Need to translate]	Saw gin	Valid	GB/T 19819-2005

Basic data

Standard ID	GB/T 19819-2025 (GB/T19819-2025)
Description (Translated English)	Saw gin
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	B93
Classification of International Standard	65.040.20
Word Count Estimation	22,267
Date of Issue	2025-10-31
Date of Implementation	2026-02-01
Older Standard (superseded by this standard)	GB/T 19819-2005
Issuing agency(ies)	State Administration for Market Regulation and Standardization Administration of China

GB/T 19819-2025: Saw gin

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 65.040.20 CCSB93 National Standards of the People's Republic of China Replaces GB/T 19819-2005 sawtooth cotton gin Published on 2025-10-31 Implemented on February 1, 2026 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Preface III Introduction IV 1.Scope 1 2 Normative References 1 3.Terms and Definitions 1 4.Product parameters and models 2 5.Technical Requirements 2 6.Test Methods 5 7 Inspection Rules 9 8.Marking, Packaging, Storage and Transport 11 Appendix A (Normative) Calculation of Allowable Rotor Imbalance 12 Appendix B (Normative) Determination of Cottonseed Hair Rate 14

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document replaces GB/T 19819-2005 "Sawtooth Cotton Grinding Machine". Compared with GB/T 19819-2005, the main differences are structural adjustments and editorial changes. Aside from the modifications, the main technical changes are as follows. a) The number of saw blades has been changed from 80 to 100 (see 4.1.1, 3.1.1 in the.2005 version); b) The film spacing in the first series was increased by 19 mm (see 4.1.2); c) The product model number has been updated with the letter Z (see 4.2); d) The product drawings and technical documents for the cotton gin manufacturing process have been removed (see section 4.1 of the.2005 edition); e) The per-flake output has been changed from "should be no less than 5 kg/h" to "should be no less than 8 kg/h" (see 5.3.15,.2005 version). 4.3.1); f) The description of the rolling quality indicators has been changed (see 5.3.11, 4.3.4 in the.2005 edition); g) The technical requirements for the corrugated saw blade have been changed (see 6.2.1, 4.4.1 of the.2005 edition); h) Technical requirements for embossed ribs have been added (see 6.2.2); i) The requirement to "perform dynamic balancing when the saw blade roller shaft is made of steel pipe" has been added [see 5.2.5c)]; j) Added "Saw blade distance to root tolerance ±0.15mm" [see 5.2.5d)]; k) The rib spacing requirement has been amended to "the height difference within a 500mm length shall not exceed 0.4mm" [see 5.2.7c, 4.4.5c) of the.2005 edition]; l) The requirement that all components must pass inspection, and that purchased or outsourced parts must have certificates of conformity, has been removed before assembly can proceed (see the.2005 version). 4.5.1). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the All China Federation of Supply and Marketing Cooperatives. This document was prepared by the National Technical Committee on Standardization of Cotton Processing (SAC/TC407) and the National Technical Committee on Standardization of Agricultural Machinery. (SAC/TC201) is under its jurisdiction. This document was drafted by. Shandong Tian'e Cotton Industry Machinery Co., Ltd., Xinjiang Tian'e Modern Agricultural Machinery Equipment Co., Ltd., and Inner Mongolia... Noda Iron Bull Agricultural Equipment Co., Ltd., Zhengzhou Cotton and Linen Engineering Technology Design Institute of All China Federation of Supply and Marketing Cooperatives, and Nantong Yufeng Plastic Steel Packaging Limited Liability Company, Jinan University, Shandong Provincial Fiber Quality Monitoring Center, Anhui Agricultural University. The main drafters of this document are. Gao Haiqiang, Wang Xinting, Wang Yugang, Li Huaikun, Gao Zhongyan, Ke Linting, Wang Ruixia, Lang Xiaoxia, and Wang Shaobin. Yang Jianning, Xu Shoudong, Li Zhantao, Zhao Pengda, Dong Quancheng, Meng Hui, Wang Shouren, Dong Baokui, Shang Guangrui, Ren Futing, Liu Xiankun, Gong Yulong, Liu Congjiu, Wang Hao, and Wei Bing. The release history of this document and the document it replaces is as follows. ---First published in.2005 as GB/T 19819-2005; ---This is the first revision.

Introduction

In recent years, with the rapid promotion and development of machine-harvested cotton in my country, the processing equipment for machine-harvested cotton in my country has developed towards large-scale and intelligent production. Since the promulgation and implementation of GB/T 19819-2005 "Sawtooth Cotton Grinding Machine", the relevant technical indicators can no longer meet the needs of the current technical level. To implement the "14th Five-Year Plan for the Construction of a National Standard System to Promote High-Quality Development" and the "Opinions on Promoting High-Quality and Sustainable Development of the Cotton Industry", In accordance with the spirit of the "Notice on the Action Plan for Standardization Work", the drafting group revised GB/T 19819-2005. This revision, while maintaining the organic connection between the standard structure and the.2005 version, and ensuring that the core indicators are consistent with advanced domestic equipment, further... It incorporates the advanced achievements of new products, technologies, and processes, providing a better foundation for the production, manufacturing, inspection, and technological upgrading of sawtooth cotton gins. This guidance also provides practical and feasible technical indicators to support the standardized development of cotton processing equipment. This document improves design, manufacturing, and performance... This provides technical support for testing and product acceptance, improves the processing capacity, intelligence level, and manufacturing precision of key components of the cotton gin, and optimizes... The relevant testing methods have not only promoted the application of cotton gins in countries along the Belt and Road Initiative, but also facilitated the development of large-scale cotton gins in my country. The development towards intelligentization is of great significance for eliminating outdated production capacity, promoting the transformation and upgrading of the cotton processing industry, and achieving high-quality development of the cotton industry. Leadership role. sawtooth cotton gin

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.

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