Determine the applicable anchor cable specifications: First, determine the diameter of the steel strand used in the project (e.g., Φ15.24mm, Φ17.8mm, Φ21.6mm), and select a jack with a matching center bore diameter (e.g., MQ15, MQ18, MQ22 series) to ensure that the rated tension (e.g., 180kN, 300kN, 450kN) ≥ the design prestress value.
Select the drive method according to the working environment: In explosion-proof locations such as underground coal mines, pneumatic type (e.g., MQ series, air source 0.4–0.8MPa) must be selected; for surface projects or environments without an air source, manual type (e.g., MSY series) or electric type can be selected, balancing efficiency and portability.
Key parameters and certifications to verify: Rated pressure is typically 55–63 MPa, and stroke is mostly 150 mm; pneumatic equipment must have a coal mine safety (MA) mark, and the entire machine must comply with MT/T972-2006 standard; high-pressure hoses are safety-certified components.
