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

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Our corporation insists all along the quality policy of "product top quality is base of organization survival; purchaser pleasure will be the staring point and ending of an company; persistent improvement is eternal pursuit of staff" plus the consistent purpose of "reputation very first, purchaser first" for Heavy Duty Hydraulic Door Closer, Crown Door Closer, Door Damping, With our rules of " small business standing, partner trust and mutual benefit", welcome all of you to definitely do the job alongside one another , grow together.
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 keep improving and perfecting our products and service. At the same time, we work actively to do research and development for Buy Floor Spring Manufacturer – D-7300 Single Engine Cylinder Floor Spring – Dorrenhaus , The product will supply to all over the world, such as: Cape Town, Slovenia, Ethiopia, With more and more Chinese products around the world, our international business is developing rapidly and economic indicators big increase year by year. We have enough confidence to offer you both better products and service, because we are more and more powerful, professional and experience in domestic and international.
  • Superb technology, perfect after-sales service and efficient work efficiency, we think this is our best choice.
    5 Stars By Jason from Italy - 2018.05.22 12:13
    This is a very professional wholesaler, we always come to their company for procurement, good quality and cheap.
    5 Stars By Ruby from Puerto Rico - 2017.04.08 14:55
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