Heavy Duty Automatic Door Closer Extra‑Large, Adjustable Closing Speed, 90° Hold Open, Quiet Fire Rated Overhead Design

Color: Extralarge Overview A heavy duty door closer with an environmental aluminum alloy casting body and a builtin antiexternal force device. Designed for durable operation and to protect the door, door frame and door closer while providing adjustable closing performance. Key benefits Durable construction: environmental aluminum alloy casting body resists wear for long service life. Impact protection: builtin antiexternal force device reduces stress on the door, door frame and door closer. Precise control: two independent adjustment valves let you set closing speed and latching speed separately for consistent operation. Clear compatibility: available load ranges and corresponding door width limits to match a wide variety of interior and exterior doors. Compact operation: suitable for doors with opening angle under 90 degrees. Specifications Small loadbearing range: 25 to 45 kg. Door width limit within 900 mm. Large loadbearing range: 45 to 60 kg. Door width limit within 1100 mm. Extra large loadbearing range: 65 to 85 kg. Door width limit within 1200 mm. Adjustable speed: two valves for independent control of closing and latching speed. Recommended applications Residential entrance doors where controlled closing and reduced frame stress are needed. Office interior doors and conference rooms that require adjustable closing speed and reliable performance. Light commercial doors such as small retail or service rooms where different door weights require matched closing force. What this solves Eliminates slamming and uncontrolled closing by allowing independent adjustment of closing and latching phases. Reduces wear on door hardware and frames with the antiexternal force device. Simplifies selection with three loadbearing ranges to fit common door widths and weights. Notes Choose the loadbearing range that matches the door weight and width for performance. The product operates with doors opening to under 90 degrees and provides independent speed adjustment via two valves.