

🚪 Close with confidence — engineered for the doors that mean business!
The Ozone NSK-680 is a premium steel rack and pinion overhead door closer featuring adjustable closing force (EN 2-4) and dual independent speed ranges. Designed for commercial and high-traffic environments, it supports doors up to 80kg and offers a non-handed design for versatile mounting on door leaf or transom. Durable, reliable, and easy to install, it ensures smooth, controlled door operation every time.
| Installation Type | Screw-In |
| Recommended Uses For Product | commercial buildings, high-traffic areas, interior and exterior applications |
| Number of Pieces | 1 |
| Manufacturer | M/s. Corona Ozone, M/s. Corona Ozone, Saravanampatti, Coimbatore, Tamil Nadu-641035 ; +91 7042836466 |
| Manufacturer | M/s. Corona Ozone |
| Country of Origin | India |
| Item model number | NSK-680 |
| Product Dimensions | 2.6 x 12.4 x 28 cm; 1.53 kg |
| ASIN | B07HRTP1SX |
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