90 Degree Hold Open: When the door is opened beyond 90 degrees, this door closer keeps the door securely open. No need for external force or additional door wedges. The door closes automatically when pulled back within 90 degrees. Application Range: This commercial door closer with hold-open function is suitable for doors weighing between 45-65kg (99lb-132lb), not intended for lightweight doors. Fits door widths of 70-110cm (27.5-43.3 inches). Maximum door opening angle: 90 degrees. The door and frame must be on the same plane or within 5cm (1.97 inches). Do not purchase if the plane distance exceeds 5cm. High Quality Construction: Made from commercial-grade aluminum alloy, this hydraulic door closer operates smoothly and automatically closes the door from 0 to 90 degrees. Features adjustable closing speed, antioxidant, anticorrosive, rustproof, durable, abrasion-resistant, and weather-resistant performance. Tested for 500,000 cycles with an oil leakage rate under 1/1000. Provides quiet, safe, and reliable operation, protecting your door and lock. Silent Closing: The hydraulic mechanism ensures automatic and silent door closure. Equipped with two independent valves to control closing and latching speed. Fully adjustable to suit your preferences. Wide Compatibility: Suitable for most door types, including wood and metal doors, residential and commercial interior and exterior doors, fire doors, and framed glass doors. Specifications: Color: Metallic Load Capacity: 45-65kg Applicable Door Width: 700-1100mm Maximum Opening Angle: 90 degrees Package Includes: 1 x Hydraulic Door Closer