Long Hinges Manufacturer In China
Long hinges is a metal connector with an extra-long hinge structure. Its single-side length is usually more than 300mm. It increases the number of support points (3-6 hinge cups) to achieve uniform force on large-sized doors. Different from standard hinges, it adopts a segmented axis design, allowing the door to open and close synchronously in the length direction, and has anti-deformation characteristics (deflection ≤ 0.5mm/m).
If you need to order Long hinges, then start here and Ninesuns will give you products that exceed your expectations.

Long Hinges
Features Of Long Hinges
As a heavy-duty mechanical connector, the long hinge adopts a multi-hinge segmented structure (usually 3-6 hinge cups) and a thickened shaft core (8-12mm in diameter), and effectively solves the problem of long door deformation through a distributed force design; secondly, 304 stainless steel or anodized aluminum alloy is selected, which has both a 200kg dynamic load-bearing capacity and 1000 hours of salt spray test corrosion resistance; the modular design can expand functions such as hydraulic buffering and quick-disassembly maintenance to meet the stringent requirements of ship doors, industrial cabinets and other scenarios for waterproofing, shock absorption and efficient maintenance.


Material Of Long Hinges
The long hinges is made of 304/316 stainless steel (accounting for 65%), anodized aluminum alloy (25%) and special alloy (10%). The stainless steel material reaches HRB80-90 hardness through cold rolling process, and the chromium content of more than 18% ensures that it can pass the 96-hour neutral salt spray test; the aluminum alloy uses 6063-T5 grade profiles, which are hard-oxidized to form a 25μm oxide film;
Custom Of Long Hinges
The long hinges customization service provides a full range of solutions for the special needs of industries such as industry, shipbuilding, and aerospace, and supports in-depth customization of hinge length (0.5-8 meters), material (304/316 stainless steel, titanium alloy, etc.), load-bearing capacity (100-2000kg), and functional modules (hydraulic buffer, quick-release structure, etc.). Through the parametric design system, the deformation coefficient of the door body and the corrosion level of the working conditions can be accurately matched. Typical applications include nuclear power shielding doors (with radiation protection coatings), polar scientific research equipment (-60℃ cold-resistant), etc. All products have passed ISO 9001 quality system certification and support the delivery of third-party load test reports. The customization cycle is only 30%-50% longer than conventional production.

Key Applications of Ninesuns Long Hinges


Long hinges are widely used in heavy-duty scenarios such as industrial equipment hatches (such as wind turbine tower inspection ports), ship watertight doors (meeting IMO waterproof standards), nuclear power shielding facilities (with radiation shielding structures), etc. Its core advantage lies in the anti-deformation ability under ultra-long spans (1-8 meters) through a multi-hinge cup distributed load-bearing design (usually 3-12 hinge points). In the aerospace field, titanium alloy hinges can reduce weight by 30% while maintaining an opening and closing life of more than 2,000 times; cold chain logistics use -40℃ cold-resistant hinges with food-grade grease;
Frequent Asked Questions
Do you have available material for us choose??
Yes, we have, we have stainless steel 201, stainless steel 304, stainless steel 316, mild steel, aluminum, brass, iron plated golden, chrome nickle etc.
Can I order customized my own design or logo ?
Of course yes. As our advantage is OEM service, we can make products with yourown design.
Do you have R & D team in your factory?
Yes! We have strong R & D team, and we make sure that every year we have our own design new products.
How does your factory do regarding quality control?
Quality is priority. Our workers always attach great importance to quality control from the very
beginning to the very end,to make sure customer buy high quality products, each products will
be inspected before packing by our QC staffs.
How is your After Sales Service?
-Shipment and sample quality tracking includes lifetime.
-Any small problem happening in our products will be solved at the most prompt time.
-We always offer relative technical support. Quick response, all your inquire will be replied within 1 hours.
Why Buy From Us
As China’s leading Long Hinges manufacturer, we offer unparalleled quality and reliability. Here are the reasons why you should choose high-quality continuous hinges:

Olivia

20 years of experience
With over 20 years of experience in the hardware industry, our team provides unparalleled expertise and service.

Exceptional Service
We are committed to providing exceptional customer service and support.

Expertise
Our team is adept at assisting you in selecting designs that perfectly match your specific requirements.

Prompt Shipping
Orders placed before 2 PM are dispatched on the same day to ensure timely delivery.
One-stop Long Hinges Manufacturing Service
20 years experience. Serving more than 10,000 customers. Professional R&D team. Competitive price.