| Performance parameters of D-128 | |
| Model | D-128 |
| Applicable Standard | UL Certificate |
| Engine Cylinder | Single |
| Max Door Width | 900mm |
| Max Door Weight | 80kg |
| Max Open Degree | 116° |
| Stop-Device | 90° |
| Latching Speed Adjustment | 0°-20° |
| Closing Speed Adjustment | 20°-90° |
| Application Temperature | -40° to 60° |
| Dimension:Length*Width*Height | 258mm*103mm*48mm |
| 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 |
Dorrenhaus brand was originated in 1872 in Germany,with the development and progress, Dorrenhaus successor decide to invest door closer factory in China.In 2011,Zhejiang Dorrenhaus Hardware Industrial Co.,Ltd was formally established.
Zhejiang Dorrenhaus Hardware Industrial Co.,Ltd is a sino-foreign joint venture with investing 22 Million RMB totally, is an enterprise with 10 years experience in manufacturing door closer.We are a integrated R&D ,manufacturing and trading for door closer solutions for global customers,and we are entitled to High-Tech Enterprise by government.
We are specialized in producing various middle-high class automatic door closers,floor spring, and relative door accessories hardware products.Covering an area of 30000 square meters, we now have over 200 employees, an annual sales figure that exceeds USD 20 millions.