What is the minimum order quantity?

The minimum order quantity is 5000 pieces.

What is the lead time for production?

The average lead time is within 15 workdays for both peak and off-peak seasons.

What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, and Western Union.

Hydraulic Hinge with Buffer for Invisible Doors, Automatic Closing Door Closer Hinge, Concealed Door Damping Spring Hinge

Name: Hydraulic Hinge with Buffer for Invisible Doors, Automatic Closing Door Closer Hinge, Concealed Door Damping Spring Hinge
Brand: Zhaoqing Nuofeng Intelligent Technology Co., Ltd.
SKU: 2150638652

Guangdong, ChinaZhaoqing Nuofeng Intelligent Technology Co., Ltd.

US$25.00

1 Pair

Sample price:US$25.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

12 Months

Warranty

12 Months

Model NO.

NF-E5A

Type

175

Finish

Oxidation

Material

Stainless Steel

Transport Package

Carton

Specification

NF-E5A

Trademark

NetFun NUOFENG

Origin

China

HS Code

8302100000

Production Capacity

50000sets/Month

Key features

High Bearing Capacity: Single hinge supports up to 50kg; scalable for doors up to 100kg with 4 hinges.

175 Degree Opening: Max opening angle 175 degrees with automatic reset at 160 degrees to prevent wall contact.

Adjustable Closing Speed: Variable closing speed from 90 to 0 degrees with quiet close and push-to-lock options.

Durable Construction: Made of space aluminum alloy with 4mm thickness for long service life.

12 Months Warranty: Comprehensive 12-month warranty coverage for mechanical defects.

Flexible Customization: Offers full, minor, and sample-based customization options for designs.

Stainless Steel Finish: Features oxidation finish on stainless steel material for durability.

Arbitrary Stop Angle: Allows door to stop at any angle between 160 and 90 degrees.

Company profile

Experienced Team

Zhaoqing Nuofeng Intelligent Technology Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Guangzhou PortAverage Response Time: ≤2.51h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company providing intelligent access-control and gate hardware solutions, including locks and related accessories. It reports R&D, manufacturing, sales, customization, and ODM capabilities, with new products introduced during the past year. Manufacturing space is 1,430 m², but quality control appears limited, with one inspector and finished-product instructions lacking written records. Service procedures exist for complaints and corrective actions, but supporting written records are absent. The supplier reports no overseas warehouses, showrooms, agents, branches, or offline trade-show participation, and has exported for one year. Financial credibility cannot be fully assessed from the available non-financially reportable information. No certification, named customer case, or recognized-brand OEM evidence is provided.

Supplier typeThe supplier is a combined company whose stated business includes R&D, manufacturing, and sales of mechanical equipment, metal structures, security equipment, and commercial cryptographic products. Its company description further identifies it as a one-stop provider of intelligent access-control and gate hardware solutions.

R&D capabilityThe supplier states that it conducts R&D, introduced new products during the past year, and provides ODM services. However, it reports no available SDK and no OEM service for well-known brands, so the evidence supports product-development capability but not broader software or major-brand innovation credentials.

Production capacityThe supplier reports a 1,430 m² manufacturing plant and production-related equipment including punching, drilling, and packing machines. Its business scope includes manufacturing security equipment and metal structures, but only one quality inspector is reported and finished-product inspection lacks written records.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. These capabilities are stated consistently across the R&D and design-service records.

Product Q&A

Q:What is the maximum door opening angle?

The maximum opening angle is 175 degrees. If it exceeds 160 degrees, it automatically resets to the 160-degree door stop position.

Q:How many hinges are needed for a heavy door?

Use 2 hinges for doors up to 50kg, 3 hinges for doors up to 80kg, and 4 hinges for doors up to 100kg.

Q:Can the closing speed be adjusted?

Yes, the closing speed is adjustable. It is faster between 90-30 degrees, slower between 30-15 degrees, and can be set to push into lock or close quietly from 15-0 degrees.

Q:What is the warranty period?

We provide a 12-month warranty for this product.

Q:Is customization available for this hinge?

Yes, we offer full customization, minor customization, and customization from samples or designs.

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Hydraulic Hinge with Buffer for Invisible Doors, Automatic Closing Door Closer Hinge, Concealed Door Damping Spring Hinge