General description The Aluminum Alloy Spring Door Closer is designed for automatic closing of doors in various settings such as homes, offices, and hotel rooms. It features a durable aluminum alloy body and nickel-plated steel parts, ensuring longevity and ease of maintenance. Technical specifications Material: Aluminum alloy body with nickel-plated steel parts Maximum door weight: 45 kg Maximum door width: ≤ 1000 mm Maximum door opening angle: up to 150° Height difference between door frame and door: less than 5 cm Installation Easy to install with a nickel-plated surface metal bracket If the door frame is too high, use a material to raise the bracket to ensure it is parallel to the door frame Usage Ensure the door can open and close naturally without excessive resistance for optimal performance Spring tension is adjustable within a certain range