| Certification | CE Marked |
| Spring Power | Adjustable Size 2-4 |
| Durability | 500,000 cycles above |
| Function | Adjustable Closing speed Adjustable Latching speed Hold Open Optional |
| Installation type | Regular,Top Jamb,Parallel |
| Max. Opening | 120-150° |
| Pressure relief valve | Yes |
| Mechanism | Rack & Pinion |
| Hand of door | Non handed |
| Materials of Body | Die-cast Aluminum |
| Materials of Spring | 60Si2Mn |
| Backcheck | Yes |
| Delayed Action | Yes |
| Bearing | Full complement bearings for long durability |
| Application | Suitable for interior wood, hollow metal, and aluminum doors and frames |
| Finish | Silver, Brown, White,Black, Others upon request. |
| Warranty | 5 Years |
| Cross reference | Dorma 7300 |
Recommended for interior or exterior doors including:
• Offices
• Banks
• Retail Malls
• Hotels
• Health Care
• Clinics
A door closer is a spring-loaded hydraulic device that closes a door automatically. The most common kind of door closer is the surface mounted door closer, so called because it is mounted to the surface of the door or header. Also available are concealed overhead door closers that are mounted inside the header above the door or inside the door itself, and floor closers that are installed beneath the threshold.
Push side installation
When necessary, push side installation provides the benefits of track arm assemblies with the closer mounted to the door and the track mounted to the stop, creating a more tamper-resistant application.
Adjustable Spring sizes for barrier free requirements
| Recommended | Recommended Max. | |||
| Model # | Spring power | Door Weight | Door Leaf Width (mm ) | Notes |
| D8024S | 2-4 | 20-100 KGS | 1100 mm |
*In case of unusually high or heavy doors, windy or draughty conditions, or special installations, a large power size of door closer should be used.