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Buy Floor Spring Hinge Factory – D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus

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We have now a hugely efficient team to deal with inquiries from buyers. Our goal is "100% client gratification by our solution high-quality, rate & our team service" and take pleasure in a great popularity among clients. With several factories, we will provide a wide assortment of Commercial Door Closer, Hydraulic Door Closer, Screen Door Closer, Should further information be required, please contact us at any time!
Buy Floor Spring Hinge Factory – 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


Product detail pictures:

Buy Floor Spring Hinge Factory –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

Buy Floor Spring Hinge Factory –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

Buy Floor Spring Hinge Factory –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

Buy Floor Spring Hinge Factory –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

Buy Floor Spring Hinge Factory –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures


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Our personnel are generally within the spirit of "continuous improvement and excellence", and using the excellent top quality goods, favorable rate and superior after-sales expert services, we try to win every customer's believe in for Buy Floor Spring Hinge Factory – D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus , The product will supply to all over the world, such as: Israel, Japan, Vancouver, Nowadays our products sell all over the domestic and abroad thanks for the regular and new customers support. We provide high quality product and competitive price, welcome the regular and new customers cooperate with us!
  • The company can think what our think, the urgency of urgency to act in the interests of our position, can be said this is a responsible company, we had a happy cooperation!
    5 Stars By Agustin from Comoros - 2018.12.05 13:53
    This company can be well to meet our needs on product quantity and delivery time, so we always choose them when we have procurement requirements.
    5 Stars By Ella from Sao Paulo - 2018.09.16 11:31
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