What materials and finishes are available?

The material is stainless steel. Finishes include steel nickel-plated, steel galvanized, and stainless steel wire drawing.

What types of doors is this hinge applicable to?

It is applicable to fire doors, folding doors, flush doors, wooden doors, rabbet doors, and steel doors.

80-100kg Stainless Steel Adjustable Concealed Hinge Heavy Duty Fire Door Hinge

Name: 80-100kg Stainless Steel Adjustable Concealed Hinge Heavy Duty Fire Door Hinge
Brand: Dongguan Shengang Precision Metal & Electronic Co., Ltd.
SKU: 888798925

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

US$1.00-30.00

500 Pieces

Sample price:US$25.00/piece.Request sample

Product profile

Customization

Available

Type

180°Hinge

Finish

Chrome Plated

Model NO.

SG-HC3D29111SS-80

Material

Stainless Steel

Name

Stainless Steel Adjustable Concealed Hinge Heavy

Material Thickness

3/3.5mm

Application

Rabbet Door, Steal Door, Wooden Door

Door Weight

80kg/2PCS

Gap

18.5mm

Door Thickness

40mm

Transport Package

White Inner Boxes, Yellow-Brown Outer Cartons for

Specification

111*28.5*38/36mm

Trademark

Origin

China

Production Capacity

10000piece/Pieces

Key features

Heavy Duty Load Capacity: Supports 80kg per 2 pieces for heavy-duty fire and wooden doors.

Premium Stainless Steel: Constructed from durable stainless steel with 3/3.5mm thickness.

German-Type Design: Precision-engineered concealed hinge for smooth operation and durability.

Multi-Door Compatibility: Suitable for fire, folding, flush, wooden, rabbet, and steel doors.

Customizable Options: Available in chrome plated, galvanized, and wire drawing finishes.

Factory Direct Supply: Direct manufacturer with 10,000 pieces production capacity.

Fast Delivery Service: 5-10 days for stock items, 15-30 days for custom orders.

OEM/ODM Support: Professional OEM and ODM services available for customization.

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: ≤6.13h

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.