| Performance parameters of D-8000 | |
| Model | D-8000 |
| Applicable Standard | EN1154 |
| Engine Cylinder | Double |
| Closing Force | Fixed EN2/EN3/EN4 for optional |
| Max Door Width | 1000-1200mm |
| Max Door Weight | 100-150kg |
| Max Open Degree | 130° |
| Stop-Device | 90° |
| Latching Speed Adjustment | 0°-20° |
| Closing Speed Adjustment | 20°-90° |
| Application Temperature | -40° to 60° |
| Dimension:Length*Width*Height | 306mm*108mm*41mm |
| Material of Cover Plate | 304SS or 201SS |
| Thickness of Cover | 1.0mm or 1.2mm |
| Finish | SSS/PSS/Matt Black |
| Service Life | Over 500,000cycles |
| Warranty | 3 years |
If your premises require that you have door closers, and you would prefer concealed ones, then floor springs have the edge over conventional versions because they are well suited to pretty much any situation; they are great for full-height or heavier doors, work equally well with single or double-leaf and, best of all - they automatically combine functionality with aesthetic appeal.
Dorrenhaus comprises R&D center, testing laboratory,manufacturing center and sales dept, has over 10 in-service engineers and research specialists. Since it was founded, developing High performance door control products has always been the objective of Dorrenhaus. Dorrenhaus people have continuously tried to improve product quality, introducing oversea high and new technical equipment,giving our company good technical capabilities. Moreover, all of our R&D engineers has more than 20 years experience in door closer industry.
Our value message is QUALITY and SERVICE
10 years of hardware manufacturing experience
Can customized any size and color
Compensation if late delivery or bad quality
Competitive prices
Experienced professionals
24 hours online after-sales service
OEM &ODM offered
We boast our own R & D, production, exports, and logistics team
Floor springs are especially effective for oversized doors—floor-height doors are often too large and heavy for traditional door closers, so floor springs with straps and top pivots are a good option.