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Buy Floor Spring Manufacturer – D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus

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Our firm has been concentrating on brand strategy. Customers' satisfaction is our best advertising. We also offer OEM provider for Dorma Closers, Commercial Door Closer Hinge, Door Closer Detail, We welcome you to inquire us by call or mail and hope to build a successful and cooperative relationship.
Buy Floor Spring Manufacturer – 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 Manufacturer –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

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

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

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

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


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We've been committed to offering easy,time-saving and money-saving one-stop purchasing support of consumer for Buy Floor Spring Manufacturer – D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus , The product will supply to all over the world, such as: Croatia, Algeria, Seychelles, As an experienced manufacturer we also accept customized order and we could make it the same as your picture or sample specification. The main goal of our company is to live a satisfactory memory to all the customers, and establish a long term business relationship with buyers and users all over the world.
  • As an international trading company, we have numerous partners, but about your company, I just want to say, you are really good, wide range, good quality, reasonable prices, warm and thoughtful service, advanced technology and equipment and workers have professional training, feedback and product update is timely, in short, this is a very pleasant cooperation, and we look forward to the next cooperation!
    5 Stars By Mary from Algeria - 2017.10.13 10:47
    It is not easy to find such a professional and responsible provider in today's time. Hope that we can maintain long-term cooperation.
    5 Stars By Stephen from Ireland - 2018.12.22 12:52
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