Pneumatic Adjustable Sliding Door Closer Experience controlled, reliable door closing with this precisionengineered pneumatic door closer, designed for safety, durability, and energy efficiency. Key Features and Benefits: Adjustable Closing Speed Finetune the closing action to match your needs. Twostage adjustment allows you to slow down or speed up the door's closing motion by simply turning the control knob. Clockwise rotation reduces speed, while counterclockwise increases it. This helps prevent injuries from sudden closures and ensures smooth operation every time. HumanCentered Design Utilizing advanced pneumatic technology, the closer uses air resistance during the final section of closure for a gentle, quiet finish. Unlike hydraulic closers, it does not require extra effort when opening the door. Equipped with a strength spring for long service life, it provides consistent performance over years of use. Energy Saving and LowMaintenance Constructed with a durable aluminum tube body, this pneumatic closer eliminates the risk of oil leakage found in hydraulic systems. By keeping sliding doors closed, it minimizes heat loss in winter and cooling loss in summer, helping reduce energy costs. Broad Door Compatibility Suitable for doors with widths from 0.75 to 1.3 meters (29.5 to 51 inches). Light force model: Maximum pulling force of 66 pounds, ideal for screen doors, thin wooden doors, and thin aluminum frame doors. Heavy force model: Maximum pulling force of 176 pounds, designed for general wooden doors, warehouse doors, and conventional aluminum frame glass doors. Practical Applications: Maintain climate control in homes and offices by keeping frequently used sliding doors closed. Enhance safety in environments where children or elderly individuals may be at risk from quickslamming doors. Improve operational convenience in commercial settings such as retail entrances, warehouses, and workrooms where reliable door closure is essential. Material and Construction: Durable aluminum tube for strength and longevity quality internal spring for consistent tension and reliable closure This pneumatic sliding door closer offers a balance of safety, efficiency, and practicality, making it a dependable choice for residential, commercial, and industrial environments where controlled door closing is essential.