What is the opening angle of this hinge?

The hinge offers a wide 180-degree opening angle.

Does the manufacturer offer OEM/ODM services?

Yes, OEM and ODM services are available for customized requirements.

304 Stainless Steel 3D Invisible Hinge

Name: 304 Stainless Steel 3D Invisible Hinge
Brand: Dongguan Shengang Precision Metal & Electronic Co., Ltd.
SKU: 861374415

Guangdong, ChinaDongguan Shengang Precision Metal & Electronic Co., Ltd.

US$1.00-150.00

500 Pieces

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Type

180°Hinge

Finish

Stainless Steel

Model NO.

SG-HC3D50230SS-300

Material

Stainless Steel

Name1

304 Stainless Steel 3D Invisible Hinge

Name2

Adjustable Hinges

Name3

Concealed Door Hinge

Size

230*50*49mm

Hinge Material

Stainless Steel

Door Weight

300kg

Door Thickness

70mm

Left and Right Applicable

Feature

Completely Hidden Hinge System

Transport Package

White Inner Boxes, Yellow-Brown Outer Cartons.

Specification

230*50*49mm

Origin

China

HS Code

8302100000

Production Capacity

100000PCS

Key features

Premium 304 Stainless Steel: Constructed from high-quality 304 stainless steel for superior durability and corrosion resistance.

180 Degree Wide Opening: Features a 180-degree opening angle for maximum access and seamless door operation.

Completely Invisible Design: Concealed hinge system ensures a clean, aesthetic look with no visible hardware on the door.

High Load Capacity: Supports up to 300kg door weight per pair, ensuring stability for heavy doors.

Universal Door Compatibility: Suitable for wooden, steel, glass, and aluminum doors with thickness of 70mm or more.

Left and Right Applicable: Versatile design allows for installation on both left and right opening doors.

Proven Durability: Tested for over 200,000 cycles with no abrasion, ensuring long-term reliable performance.

Customizable Finishes: Available in satin nickel, satin chrome, copper, brass, and pearl chrome finishes.

Company profile

Dongguan Shengang Precision Metal & Electronic Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 19 Years CertifiedNearest Port: Shenzhen Port, Guangzhou PortAverage Response Time: ≤4.42h

AI-Powered supplier vetting

SummaryDongguan Shengang Precision Metal & Electronic Co., Ltd. is a China-based limited trading/manufacturing company established in 2007, with a stated founding description also referring to February 2000. It operates from Dongguan, Guangdong, with 117 employees, a 5,550 m² manufacturing plant, six production lines, and 5 R&D engineers. Its product range centers on door and window hardware, including hinges, locks, handles, closers, stoppers, and sliding or folding-door fittings. The supplier reports ISO 9001:2015 certification, OEM/ODM cooperation, international export coverage, and sales in Europe, America, Southeast Asia, and the Middle East. Production-management and technical capabilities are supported by stated equipment, engineers, quality-control personnel, and testing activities. However, the provided information does not substantiate after-sales procedures, financial strength, specific customer cases, or measurable customization performance.

Supplier typeThe supplier is identified as a China-based limited company and trade company, while its descriptions also characterize it as an international manufacturer integrating R&D, production, and sales of door and window hardware. This indicates a combined trading and manufacturing profile rather than a purely trading entity.

CertificationsThe supplier explicitly reports holding an ISO 9001:2015 certificate for its management system. This is direct evidence of a recognized quality-management certification, although the scope and validity details are not provided.

R&D capabilityThe supplier reports advanced production equipment, leading production technologies, 5 R&D engineers, mold-making and product-testing activities, and multiple product types including adjustable concealed and casement hinges. These statements directly support active technical development and product innovation capability.

Production capacityThe supplier reports a 5,550 m² manufacturing plant, six production lines, advanced equipment, production technologies, dozens of production staff, quality-control personnel, and a production-management system. Its stated product scope and broad export markets further indicate established operating capacity.

Customization capabilityThe supplier states that its engineers conduct R&D, mold making, production and processing, and product testing, and that it cooperates with international brands through OEM and ODM. These activities explicitly support customization capability, although no customization examples, minimum quantities, or technical limits are specified.