GB/T 25974.2-2010

Active

Powered support for coal mine - Part 2: Specification for power set legs and rams

煤矿用液压支架第2部分：立柱和千斤顶技术条件

Standard Type

GBT

ICS

73.100

CCS

D97

Status

Active

Issue Date

2011-01-10

Implementation

2011-06-01

Centralized Committee

中国煤炭工业协会

Issuing Authority

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies the technical requirements, test methods, and inspection rules for hydraulic legs and rams used in powered roof supports in coal mines. It applies to the design, manufacturing, and quality acceptance of these critical components, which provide the load-bearing and adjustment functions for underground longwall mining systems. The standard ensures the reliability and safety of the support equipment under harsh mining conditions.

Related Standards

JB/T 53566-1999 Product Quality Grading for Single-Side Curved Rail Side-Dumping Mine Car (Internal Use) JB/T 53574-1999 KQ Series Down-the-hole Drilling Rig - Product Quality Grading (Internal Use) JB/T 53562-1999 Planetary Drive Scraper Winch Loader - Product Quality Grading (Internal Use) JB/T 53529-1999 JZ Type Sinking Winch - Product Quality Grading (Internal Use) JB/T 53530-1999 ST/SD Series Shuttle Mine Car Product Quality Grading (Internal Use) JB/T 53568-1999 Fixed Body Narrow Gauge Mine Car - Product Quality Grading (Internal Use) JB/T 53528-1999 JZA–5/1000 Safety Ladder Shaft Sinking Winch Product Quality Grading (Internal Use) JB/T 53579-1999 Dump Mine Car Product Quality Grading

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.