What materials are used to make these hinges?

The main port is zinc alloy, the connector is aluminum alloy, and it also includes stainless steel and nylon Pad66.

Can these hinges be installed on both left and right doors?

Yes, the installation disregards left and right installation type.

What is the maximum door weight these hinges can support?

The door weight capacity is 80kg per 2 pieces.

Hide Hinges for Doors with Classy Hidden Door Hinges Medium Duty

Name: Hide Hinges for Doors with Classy Hidden Door Hinges Medium Duty
Brand: Dongguan Shengang Precision Metal & Electronic Co., Ltd.
SKU: 1955762965

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

US$20.00

1 Piece

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Type

180°Hinge

Finish

Chrome Plated

Model NO.

SG-HC4080

Material

Alloy

Gap

17.5mm

Angle

180 Degree

Door Thickness

36mm

Door Weight

80kg/2PCS

Fittings/Box

1 Piece Spanner and 40 Piece Ss Screws

Transport Package

White Inner Boxes, Yellow-Brown Outer Cartons for

Specification

160*28**28*32mm

Trademark

Origin

China

Production Capacity

10000piece/Pieces

Key features

Durable Zinc Alloy Material: Constructed from zinc alloy main body, aluminum connector, and stainless steel for longevity.

Versatile Door Compatibility: Suitable for wooden, interior, entrance, anti-fire, anti-theft, and steel doors.

Flexible Installation Type: German-type design allows for disregard of left and right installation orientation.

Premium Chrome Finish: Features a baking chrome finish for a classy look and corrosion resistance.

High Load Capacity: Supports up to 80kg per pair of hinges for medium-duty applications.

Complete Accessory Kit: Includes 1 piece spanner and 40 pieces of stainless steel screws for easy installation.

Factory Direct Supply: Directly supplied by a manufacturer with 15+ years of experience and OEM/ODM services.

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: ≤2.85h

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.