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China Hydraulic Floor Spring Factories – D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus

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China Hydraulic Floor Spring Factories – D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus Detail:

We are a professional Door spring manufacturer and supplier in China, specializing in providing high quality customized products. We warmly welcome you to wholesale bulk Door spring stock from our factory. Contact us for free samples.

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

Performance parameters of D-7300
Model D-7300
Applicable Standard
Engine Cylinder Single
Max Door Width 1200mm
Max Door Weight 150kg
Max Open Degree 135°
Stop-Device 90°
Latching Speed Adjustment 0°-20°
Closing Speed Adjustment 20°-90°
Application Temperature  -40° to 60°
Dimension:Length*Width*Height 273mm*126mm*70mm
Material of Cover Plate 304SS or 201SS
Thickness of Cover 1.2mm
Finish SSS/PSS/Matt Black
Service Life Over 500,000cycles
Warranty 3 years

A floor spring is typically concealed under the floor to operate a door which requires to be closed after use, for reasons including convenience, safety or security.

Floor springs operate using what we call a CAM action mechanism. When the door is opened, regardless of in which direction, the bottom arm, which is fixed to the door, rotates the CAM spindle. This, in turn, rotates the CAM itself. The CAM is connected to the piston and, when it’s rotated, pulls the piston head


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China Hydraulic Floor Spring Factories –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

China Hydraulic Floor Spring Factories –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

China Hydraulic Floor Spring Factories –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

China Hydraulic Floor Spring Factories –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

China Hydraulic Floor Spring Factories –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures


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Being supported by an advanced and professional IT team, we could offer technical support on pre-sales & after-sales service for China Hydraulic Floor Spring Factories – D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus , The product will supply to all over the world, such as: Uruguay, Porto, Bulgaria, With the goal of "zero defect". To care for the environment, and social returns, care employee social responsibility as own duty. We welcome friends from all over the world to visit and guide us so that we can achieve the win-win goal together.
  • The company account manager has a wealth of industry knowledge and experience, he could provide appropriate program according our needs and speak English fluently.
    5 Stars By Laura from Bahamas - 2017.12.19 11:10
    The customer service reprersentative explained very detailed, service attitude is very good, reply is very timely and comprehensive, a happy communication! We hope to have a opportunity to cooperate.
    5 Stars By Evelyn from Mecca - 2017.11.11 11:41
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