
Heavy Duty Telescopic Hydraulic Leg Cylinder for Underground Mining Roof Support Featuring Thick Wall Tube Structure. Customizable Color: Color can be customized according to customer requirements. High Pressure Resistance: Operating pressure ranges from 31.5 to 45 MPa for heavy loads. Wide Temperature Range: Functional in temperatures from -30 to +80 degrees Celsius. Premium Material Selection: Uses high-strength steel from Shanghai Baosteel and Daye Steel. Advanced Surface Treatment: Offers chromium plating, laser cladding, and copper melting options. Robot Welding Technology: Adopts robot welding to ensure reliability and reduce leakage risks. Comprehensive Quality Testing: Undergoes 9 strict tests including leak, pressure, and buffer tests. 14-Month Warranty: Free parts replacement or new cylinder for quality issues within 14 months.