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Buy Speedy Floor Spring Suppliers – D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus

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To meet the customers' over-expected pleasure , now we have our potent staff to offer our greatest general service which includes internet marketing, sales, planning, output, quality controlling, packing, warehousing and logistics for Mortise Lock Cylinder, Residential Door Closer, Device That Closes Door Automatically, All prices depend upon the quantity of your order; the more you order, the more economical the price is. We also offer good OEM service to many famous brands.
Buy Speedy Floor Spring Suppliers – 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 Speedy Floor Spring Suppliers –  D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus detail pictures

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

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

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

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


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Our firm aims to operating faithfully, serving to all of our shoppers , and working in new technology and new machine regularly for Buy Speedy Floor Spring Suppliers – D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus , The product will supply to all over the world, such as: Miami, Italy, New York, Our products are mainly exported to Europe, Africa, America, the Middle East and Southeast Asia and other countries and regions. We have enjoyed a great reputation among our customers for quality products and good services.We would make friends with businessmen from at home and abroad, following the purpose of "Quality First, Reputation First, the Best Services."
  • The accounts manager made a detailed introduction about the product, so that we have a comprehensive understanding of the product, and ultimately we decided to cooperate.
    5 Stars By Gill from USA - 2017.05.02 18:28
    The supplier cooperation attitude is very good, encountered various problems, always willing to cooperate with us, to us as the real God.
    5 Stars By Eunice from UAE - 2018.12.25 12:43
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