Fire Door Automatic Closer Fire Door Hydraulic Buffer Device Household Sliding Door Closer, Spec: Large Non-Positioning

1. Built-in high-toughness spring for gentle closing with soft impact absorption. No need to worry about door-closing clamps or loud closing sounds
2. Hydraulic two-stage speed adjustment, allowing for free adjustment of closing speed
3. High-gloss coating process, moisture-proof and rust-proof
4. Resistant to impact, with high elasticity and good buffering
5. Main body made of high quality aluminum alloy, durable and wear-resistant
6. Riveted connections are firm and durable, not likely to come off
7. Adjustable telescopic arm, enabling smooth installation even when the door frame and door panel are not on the same plane, meeting various needs
8. Material: aluminum alloy
9. Suitable door weights: small: 25-65kg; large: 65-85kg; extra-large: over 85kg
10. Suitable door widths: small: within 900mm; large: within 1100mm; extra-large: within 1200mm