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Self-closing 304 stainless steel Hinges Hydraulic buffer 5 inch door closer for heavy fire Door

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Port: Shenzhen, Zhuhai
Payment Terms: L/C,T/T,Western Union
Supply Ability: 20000 Piece/Pieces per Month
Temperature: (-30℃) - 60℃
Place of Origin: Guangdong China
Warranty: 2 years
Sample: Accept
Size: 5 Inch
Color: Black, Gold, Sliver, Red Bronze, Green Bronze, Wire Drawing
Material: Stainless steel
Project Solution Capability: total solution for projects
Model Number: GM-5H-S
Design Style: Modern
After-sale Service: Online technical support
Brand Name: Golden Mammoth
Service Life: More Than 300000 Times
Thickness: 3mm
Maximum Angle: 175 Degree
Type: Door & Window Hinges
Product name: Hydraulic Automatic soft closing Hinges
Application: Workshop
Packaging Detail: two pieces Hydraulic Automatic soft closing Hinges per color box , 24pcs in one carton box
Zhongshan Golden Mammoth Metal Technology Co., Ltd.
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Manufacturer, Trading Company
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US$ 6,000+
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Self-closing 304 stainless steel Hinges Hydraulic buffer 5 inch door closer for heavy fire Door

Product Description
Product Description
Size 5 Inch 6 Inch
Model H Type  H Type
Weight capacity ≤30kg/pcs ≤45kg/pcs
Door width ≤1050mm ≤1200mm
Service life Morethan 300000 times More than 500000 times
Size 148x99xΦ26 170x101xΦ28

Space Aluminum

Surface treatment

Sliver, Gold,  Black, Green bronzer, red bronze.

 Slotting method

Width of grooves is 35+0.5-0mm, depth of single grooves is 4mm.

Opening direction

Opening in one direction, maximum angle 175°. The hinge is non-function before delivery and detachable.  




Hotel, home, office building and other kind of fire door, wooden door, aluminum door and other indoor doors.

Speed control

The closing force on the upper end and closing speed on the lower end can be adjusted freely.


Characteristics of Self-closing 304 stainless steel Hinges:

  • Installed in the left and right direction.
  • Intelligent fixed, functional connection, buffer anti-collision, mute closed, easy to install.
  • It has hydraulic, three-speed buffering and shock absorption functions to prevent the door damage, noise and unintentional pinch caused by heavy wind blowing.
  • With multi-functions of door control and instead of door suctions, door closer and hinge.
  • Not easy to leak oil, stable performance, long service life.
  • Easy to install, safe to use and beautifull.
  • Easy to adjust the speed.


More colors are available.jpg175.jpg

Installation Location.jpg


Multi-section positioning

Company Information
Company Information




Golden Mammoth is an independent and innovative hardware manufacturer focusing on kinds of door and window accessories products. It integrates R&D, design, manufacturing and sales to provide high-quality, high-performance and high-service hardware application solutions for majority of engineering construction, door manufacturing enterprises and users.


The main products are: Silent Hydraulic hinge for different materials of door, door closer, floor spring for glass door, door handle, invisible hinge, muddy door hinge etc. The products are selling well both at home and abroad, and are well supported and recognized by the vast number of consumers.
Golden Mammoth has a standardized CNC processing workshop, assembly workshop, testing workshop and packaging workshop. We do undertake the processing of various hardware and other non-standard products. We are committed to provide high quality products to the contractors, the traders and other consumers.  Moreover, we are not only strives for excellence in production, but also pays more attentions to the changes of market demand closely, ongoing to R&D innovation, updates products in time, and improves the competitiveness of the products in the market.
There is a professional, unity, hard work and energy team. This team has long been engaged in the metal industrial. Here, each person has long-term experience in the hardware industrial and provides the most professional integrated services around customers and products.
Golden Mammoth is a manufacturer of products and solution supplier, and also your trusted partner.



Q: Are you a Manufacturer or Trading company?

A: We are a manufacturer and focusing on multi-functional hydraulic hinge products. It integrates R&D, design, manufacturing and sales.


Q: Can I have a sample order for patch fitting?

A: Yes, sample order to test and check quality is available. Mixed samples are acceptable too.


Q: Do you have any MOQ for the mass order ?

A: For our standard items , it is 24pcs per type.


Q: Will you provide the mounting accessories together the hydraulic hinge?

A: Yes of course. Every hinge will be fitted enough mounting bolts and allen key for adjustment.


Q. How will you ship the buffer hinge and how long does it take to arrive?

A: Usually, we will ship by DHL, UPS, FedEx or TNT. It will take around 5 days to arrive. Also airline and sea shipping are options.


Q: Can you accept customized LOGO?

A: Yes. Your original file is needed accordingly.


Q: How is the guarantee of the silent hydraulic hinge?

A: Normally it is three years or more than 500000 opening times.


Q: What is the Payment Term?

A: 30% T/T in advance, Balance should be paid before delivery.