MT 644-1997
Active
MT/T 776-2025
Active
Industry standards-Coal
MT/T 776-2025 Specification for routine inspection of coal mining machinery hydraulic system assembly
MT/T 776-2025 Specification for routine inspection of coal mining machinery hydraulic system assembly
Price:
$ 47
Basic Information
Standard Code:
MT/T 776-2025
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Special equipment and supplies for coal mines
ICS Name:
Other mining equipment
Publish Date:
2025-06-30
Implement Date:
2025-12-30
Pages:
16 pages
Scope
This document specifies the classification, technical requirements, test conditions, test methods, and inspection rules for the factory inspection of complete hydraulic systems for mining machinery.
This document is applicable to the factory inspection of complete hydraulic systems for mining machinery that use hydraulic oil in accordance with the provisions of GB 11118.1—2011 as the working medium, with an operating pressure not exceeding 40 MPa.
Development Information
Replace the following standards
MT/T 776-2004
Referenced Standards
GB 11118.1-2011 Hydraulic fluids of L-HL、L-HM、L-HV、L-HS and L-HG type
GB/T 17446-2024 Fluid power systems and components—Vocabulary
GB/T 17489-1998 Hydraulic fluid power—Particulate contamination analysis—Extraction of fluid samples from lines of an operating system
GB/T 17489-2022 Hydraulic fluid power—Particulate contamination analysis—Extraction of fluid samples from lines of an operating system
MT/T 827-1999 Common Technical Requirements for Coal Mining Machinery Hydraulic Systems
Related Standards
MT 646-1997
Abolished
MT 646-1997 Frictional metal prop
MT 668-1997
Replaced
MT 668-1997 Technical Conditions for Flame-Retardant Steel-Mesh-Core Conveying Belt for Coal Mines
MT 669-1997
Active
MT 669-1997 Technical condition of fire-resistant steel-cable conveyor-belt in coal mining
MT/T 154.7-1997
Active
MT/T 154.7-1997 Model designation of separating equipment for coal
MT/T 660-1997
Active