Hydraulic Automatic Door Closer**Product Features: ** - Aluminum Alloy Material - Wear Resistant and Durable - Not Easy to Leak Oil - Not Easy to Rust - Adjustable Closing Speed - Simple Installation - Light Volume Closing - Easy to Push the Door**Product Advantages: ** - Passed Long-term Opening and Closing Test - Selected Aluminum Alloy Body, Equipped with High-quality Accessories - Wear Resistant and Not Easy to Leak Oil**Excellence in Performance: ** - High-efficiency gear system ensures smooth door closing experience**Medium Size Specifications: ** - Load Capacity: 60kg - Material: Aluminum Alloy - Suitable Door Weight: 45kg/65kg - Closing Speed: Adjustable within 180°-15° range - Locking Speed: Adjustable within 15°-0° range - Suitable Environment: Suitable for -20-50 environment - Size: Medium**Precision Construction: ** - Stable Piston Cylinder and Spring - Selected materials matching the gear shaft ensure stable operation, using high-strength spring steel with good resistance to backfire stability.** Notes: ** - Before installing the door closer, do not rotate the central axis 180°, otherwise it will damage the door closer, making it unusable.**Package Contents: ** - 1x Door Closer (based on selection) - Screws - Cover Cap - Illustrated instruction manual with drilling template---