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China Speedy Floor Spring Supplier – D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus

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We know that we only thrive if we can guarantee our combined price competiveness and quality advantageous at the same time for Auto Hold Door Closer, What Is Back Check On A Door Closer, Automatic Door Openers Residential, We sincerely welcome friends to negotiate business and start cooperation. We hope to join hands with friends in different industries to create a brilliant future.
China Speedy Floor Spring Supplier – 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 Speedy Floor Spring Supplier –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

China Speedy Floor Spring Supplier –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

China Speedy Floor Spring Supplier –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

China Speedy Floor Spring Supplier –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

China Speedy Floor Spring Supplier –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures


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Well-run gear, qualified revenue workforce, and superior after-sales companies; We've been also a unified huge loved ones, anyone persist with the organization benefit "unification, determination, tolerance" for China Speedy Floor Spring Supplier – D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus , The product will supply to all over the world, such as: Panama, Liverpool, Irish, We solution have passed through the national skilled certification and been well received in our key industry. Our specialist engineering team will often be ready to serve you for consultation and feedback. We've been able to also provide you with no cost samples to meet your needs. Best efforts are going to be produced to supply you the very best service and solutions. For anyone who is considering our business and solutions, please speak to us by sending us emails or get in touch with us right away. As a way to know our items and enterprise. lot more, you'll be able to come to our factory to find out it. We'll constantly welcome guests from around the globe to our firm. o build enterprise. elations with us. You should really feel absolutely free to make contact with us for small business and we believe we'll share the top trading practical experience with all our merchants.
  • After the signing of the contract, we received satisfactory goods in a short term, this is a commendable manufacturer.
    5 Stars By Antonia from United Kingdom - 2018.06.19 10:42
    The customer service staff is very patient and has a positive and progressive attitude to our interest, so that we can have a comprehensive understanding of the product and finally we reached an agreement, thanks!
    5 Stars By Chloe from Irish - 2017.02.18 15:54
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