What is the minimum door thickness required?

The minimum door thickness required is 70mm.

Does the supplier offer OEM or custom services?

Yes, OEM and ODM services are available, and customized packaging can be provided.

What are the payment terms?

Payment options include T/T, Western Union, and PayPal. Typically, a deposit is required, with the balance paid before shipment.

300kg Heavy Duty Stainless Steel Adjustable Concealed Hinges

Name: 300kg Heavy Duty Stainless Steel Adjustable Concealed Hinges
Brand: Dongguan Shengang Precision Metal & Electronic Co., Ltd.
SKU: 861320615

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

Stainless Steel Adjust Concealed 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

Heavy Duty Capacity: Supports up to 300kg door weight with durable stainless steel construction.

180 Degree Opening: Provides a full 180-degree opening angle for maximum accessibility.

Concealed Design: Completely hidden hinge system for a clean and aesthetic look.

High Durability: Tested for over 200,000 cycles with no abrasion.

Versatile Application: Suitable for wooden, steel, fire, and security doors.

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

OEM/ODM Service: Supports customized services and OEM/ODM requirements.

Left/Right Applicable: Can be installed on both left and right doors.

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: ≤3.92h

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.