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| Customization: | Available |
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| After-sales Service: | Long Term |
| Warranty: | 3 Years |
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Suppliers with verified business licenses
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Commercial Spring Door Closer Hydraulic Automatic Sprayed Aluminum Door Closer
| Technological Data | |
| Power Size | EN3 |
| Applicable door weight | 25-45kg |
| Applicable door width | 600-1200mm |
| Function | Back check+Delay |
| Feature | 90° positioning and non-positioning possible |
| Closing speed | 2 speed adjustable |
| Standard | Products comply with CE, EN1154 standards |
| Work Temperature | -40ºC~60ºC |
| Test Cycles | 1 Milion |





| Specifications for Other Models | ||||
| Item No | QN-117 | QN-119 | QN-213 | QN-310 |
| Material | Aluminum Alloy | |||
| Door Weight | 40-65KG | 60-90KG | 100-150KG | 60-90KG |
| Door Width | 600-1200mm | 800-1300mm | 900-1300mm | 600-1250mm |
| Installation dimensions | 162*19mm | 188*19mm | 299*19mm | 60*38mm |
| Working Temperature | -40ºC~60ºC | |||
| Max Opening Angle | 180 Degree or Marking 90 Holdopen | |||
| Function | Stop, Adjustable, Buffered | |||
| Feature | Dual valves to adjust the closing and latching speed | |||
| Color | Silver, gold, white, black, brown, bronze | |||
| Warranty | 5 years | |||
| The Endurance Testing | Durability test 1 million times | |||




Hebei Qiniu Machinery Equipment Co., Ltd. is a high-tech enterprise located in Hebei Province, China. We're one of the leading suppliers specialising in electromagnetic locks and door closers, etc. We have been adhering to the business philosophy of quality first and customer service, providing high quality products and services for domestic and foreign intelligent door control system engineers and manufacturers, and becoming an important partner.
Win-win situation, develop together. We are looking for partners all over the world to join us and work together.
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