Sliding Door Closer Keep sliding doors closing reliably without manual effort. This aluminum alloy door closer uses pneumatic valve technology to slow the door during the final travel and provide stable, adjustable closing for a range of sliding doors. Key benefits Prevents doors from being left open: Ensures sliding glass and frame doors close automatically, reducing drafts and security risk. Adjustable performance: Twostage speed and force adjustment accommodate different door sizes and weights for smooth, consistent operation. Low maintenance and durable: Aluminum alloy tube and pneumatic design avoid oil leakage and provide long service life. Controlled, gentle closing: Valve closing technology reduces speed in the last section of travel to prevent slamming and reduce wear. Function and compatibility Pulling force options: Light force: 2050 kg, suitable for screen doors, thin wooden doors, and thin aluminum frame doors. Heavy force: 5070 kg, suitable for general wooden doors, warehouse doors, and conventional aluminum frame glass doors. Speed adjustment: 2stage adjustable closing speed. Turn clockwise to reduce speed and counterclockwise to increase speed. Length range: 735 to 1985 mm. Applicable door width: 750 to 1300 mm (approximately 2.46 to 4.26 feet). Material: Aluminum alloy body with pneumatic operation. Weight: 650 g. Packaging size: 6.5 x 6 x 78 cm. What is included 1 x Autonomous sliding door closer Use scenarios Garden glass sliding door: Keeps patio and garden doors closed after use to reduce drafts and insect entry. Commercial window or storefront sliding door: Provides consistent closing for customer entrances and display areas. Balcony partition or residential sliding door: Smooth, adjustable closing for lightweight interior and exterior sliding doors. Installation and operation notes Select the appropriate force setting (light or heavy) based on door weight and width. Adjust closing speed with the twostage valve: clockwise to slow the closing, counterclockwise to speed it up. The pneumatic design avoids oil leakage and reduces maintenance needs compared to oilbased closers. This sliding door closer is a practical solution for homes and commercial spaces that need reliable, adjustable automatic closing for sliding doors within the specified size and force ranges.