Path:
Home >
GB >
Page178 > GB 25974.1-2026
Price & Delivery
US$699.00 · In stock · Download in 9 secondsGB 25974.1-2026: Powered support for coal mine - Part 1: General technical specification
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See
step-by-step procedureStatus: Valid
GB 25974.1: Historical versions
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| GB 25974.1-2026 | English | 699 |
Add to Cart
|
5 days [Need to translate]
|
Powered support for coal mine - Part 1: General technical specification
|
| GB 25974.1-2010 | English | 739 |
Add to Cart
|
6 days [Need to translate]
|
Powered support for coal mine -- Part 1: General specification
|
Click to Preview a similar PDF
Basic data
| Standard ID | GB 25974.1-2026 (GB25974.1-2026) |
| Description (Translated English) | Powered support for coal mine - Part 1: General technical specification |
| Sector / Industry | National Standard |
| Classification of Chinese Standard | D97 |
| Classification of International Standard | 73.100 |
| Word Count Estimation | 34,338 |
| Date of Issue | 2026-02-27 |
| Date of Implementation | 2027-03-01 |
| Older Standard (superseded by this standard) | GB 25974.1-2010 |
| Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China |
GB 25974.1-2026: Powered support for coal mine - Part 1: General technical specification
---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 73.100
CCSD97
National Standards of the People's Republic of China
Replaces GB 25974.1-2010
Hydraulic supports for coal mines
Part 1.General Technical Conditions
Published on 2026-02-27
Implemented on 2027-03-01
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
Introduction IV
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4 Requirements 3
4.1 General Requirements 3
4.2 Appearance Quality 4
4.3 Operational Performance 4
4.4 Sealing performance 4
4.5 Support performance 5
4.6 Adaptability 5
4.7 Improve shrinkage performance 5
4.8 Structural strength 5
4.9 Durability 6
4.10 Hydraulic Components 6
4.11 Materials 6
4.12 Welding 7
5.Test Methods 7.
5.1 Test Conditions 7
5.2 Lifting Point 8
5.3 Appearance Quality 8
5.4 Operational Performance 8
5.5 Sealing performance 8
5.6 Support performance 9
5.7 Adaptability 9
5.8 Improve shrinkage performance 9
5.9 Structural strength 10
5.10 Durability 17
5.11 Hydraulic system and support integration 21
5.12 Material 21
6.Inspection Rule 22
6.1 Inspection Classification 22
6.2 Inspection Item 22
6.3 Factory Inspection 23
6.4 Type Testing 23
7.Marking, packaging, transportation, storage and use/maintenance 24
7.1 Mark 24
7.2 Packaging, Transportation and Storage 24
7.3 Use and Maintenance 25
Appendix A (Informative) Hazard Table 26
Appendix B (Normative) Product Instruction Manual 27
B.1 The instruction manual generally requires 27 pages.
B.2 Performance Parameters and Scope of Application 27
B.3 Installation and Commissioning 27
B.4 Instructions for Use, Operation and Run 27
B.5 On-site maintenance 27
B.6 Repair Plan 28
B.7 Spare Parts List 28
B.8 List of Supplementary Drawings and Documents 28
References 29
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 is Part 1 of GB (GB/T) 25974 "Hydraulic Supports for Coal Mines". GB (GB/T) 25974 has been published as follows.
The next four parts.
---Part 1.General Technical Requirements;
---Part 2.Technical requirements for the support column and jacks;
---Part 3.Hydraulic Control System and Valves;
---Part 4.Technical conditions for electro-hydraulic control systems.
This document supersedes GB 25974.1-2010 "Hydraulic Supports for Coal Mines - Part 1.General Technical Requirements" and is consistent with GB 25974.1-
Compared to.2010, aside from structural adjustments and editorial changes, the main technical changes are as follows.
a) The term "Class B stent" has been changed (see 3.6, 3.1.6 of the.2010 edition);
b) The term "basic scaffold" has been added (see 3.7);
c) The term "anchoring device" has been removed (see 3.3.5 in the.2010 edition);
d) The terms "design force" (see 3.4.2 in the.2010 edition) and "additional force" (see 3.4.4 in the.2010 edition) have been removed, and "initial force" has been added.
The term "support" (see 3.18);
e) Secondary protection requirements have been added to the connection points of the main inlet and return pipelines (see 4.1.3.2);
f) The requirements for "anti-scratching device" have been changed (see 4.1.4,.2010 version 4.1.4);
g) Added "anti-tipping and anti-slip" requirements (see 4.1.5);
h) Added the requirement to indicate the total lifting weight of the frame in the "Lifting Point" section (see 4.1.6);
i) The requirement for "single-unit support bracket" has been removed (see 4.1.7 of the.2010 version);
j) A "pressure display" requirement has been added (see 4.1.10);
k) The requirement for stent work cycle time has been removed (see 4.3.2 in the.2010 version);
l) The requirements for the tilt and elevation angles in the support adaptability specifications have been modified (see 4.6.2,.2010 version 4.6.2);
m) The requirements for measuring the specific pressure of the base plate have been changed (see 4.6.3, 4.6.3 in the.2010 version);
n) The requirement that the tensile strength of the support material should be greater than 1.08 times the yield strength has been removed (see the.2010 version).
4.11.1.1);
o) Added rules for detecting the height of the top beam during eccentric load tests of special supports such as roadway advance supports and top coal caving transition supports (see...).
5.9.1);
p) Added "Use and Maintenance" requirements (see 7.3);
q) The original informative appendix "Product Instruction Manual" has been changed to a normative appendix (see Appendix B).
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 and is under the jurisdiction of the National Mine Safety Administration.
Introduction
Hydraulic supports are crucial equipment for ensuring safe production in coal mines. GB 25974.1-2010, implemented on June 1,.2011, has been effective.
The standardization of hydraulic support manufacturing and testing has significantly improved the safety of underground roof support and the efficiency of mining operations in coal mines, providing a solid foundation for my country's coal industry.
This provides crucial support for the development of efficient coal mining technologies. With the in-depth implementation of the "National Standardization Development Outline" and the "Mandatory National Standards Management Regulations," [further development is needed].
In accordance with the explicit requirements of the "Management Measures" and considering the rapid evolution of coal mining technology and the upgrading of support needs under complex geological conditions, the original standard has been revised to focus on safety.
Specific constraints and other measures are no longer sufficient to fully meet the needs of industry development.
This revision adheres to the principle of "safety first". strengthening specific safety requirements, optimizing the consistency of the standard system, and enhancing the systematic application of standards.
And operability. The implementation of this document will further improve the standard system for coal mine support equipment, promote the technological upgrading of support equipment, and contribute to coal mine safety.
Production is provided with a more robust technological guarantee.
GB (GB/T)25974 "Hydraulic Supports for Coal Mines" is proposed to consist of 4 parts.
---Part 1.General Technical Requirements. The purpose is to establish the basic framework for the entire standards system, covering appearance quality, operational performance,
General requirements such as sealing performance and structural strength.
---Part 2.Technical Requirements for Columns and Jacks. The purpose is to specify the load-bearing reliability and operational stability of the hydraulic support actuator.
Qualitatively define the requirements, test methods, and inspection rules for hydraulic support columns and jacks.
---Part 3.Hydraulic Control Systems and Valves. The purpose is to specify the requirements, test methods, and inspection procedures for hydraulic control systems and valve components.
Verification rules, etc.
---Part 4.Technical Specifications for Electro-hydraulic Control Systems. The purpose is to specify the requirements and testing procedures for electro-hydraulic control systems used in coal mine hydraulic supports.
Methods and testing rules, etc.
Hydraulic supports for coal mines
Part 1.General Technical Conditions
1 Scope
This document defines the terminology for hydraulic supports used in coal mines, specifies their requirements, marking, packaging, transportation, storage, use, and maintenance, and establishes inspection procedures.
The test rules describe the corresponding test methods.
This document applies to the research, design, production, and testing of hydraulic supports for coal mines (hereinafter referred to as supports).
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 228.1-2021 Metallic materials—Tension testing—Part 1.Test method at room temperature
GB/T 229-2020 Metallic Materials - Charpy Pendulum Impact Test Method
GB/T 3836.1-2021 Explosive Atmospheres – Part 1.General Requirements for Equipment
GB/T 9969 General Rules for Instructions for Use of Industrial Products
GB/T 11352 Cast carbon steel parts for general engineering
GB/T 12361 General Technical Requirements for Steel Forgings
GB/T 12467 (all parts) Quality requirements for fusion welding of metallic materials
GB/T 13264-2008 Sampling Inspection Procedures and Sampling Tables for Small Batch Attribute Inspection of Percentage of Nonconforming Items
GB/T 25974.2-2010 Hydraulic supports for coal mines - Part 2.Technical conditions for columns and jacks
GB/T 25974.3-2010 Hydraulic supports for coal mines – Part 3.Hydraulic control systems and valves
MT/T 76 Emulsified oils, concentrates and high water content hydraulic fluids for hydraulic supports
MT/T 98 Inspection Specification for Hoses and Hose Assemblies for Hydraulic Supports
MT/T 1273-2025 Technical Conditions for Manufacturing Structural Components of Hydraulic Supports
MT/T 986 Mining U-shaped pin quick couplings and accessories
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Powered support
Equipment that uses hydraulic power to achieve lifting, forward movement, and other movements for roof support.
3.2
The support structure consists of two columns between the top beam and the base, and includes a protective beam.
...
