How long does production take?

The production lead time is typically 30-35 days.

Is OEM service available for this product?

Yes, we can print the client's logo on the product or packaging.

What is the sample delivery time?

Samples are ready within 5-7 working days.

UL Fire-Rated Zinc Alloy 3D Adjustable Invisible Door Hinge for Commercial Buildings

Name: UL Fire-Rated Zinc Alloy 3D Adjustable Invisible Door Hinge for Commercial Buildings
Brand: D&D HARDWARE INDUSTRIAL CO., LIMITED
SKU: 1913860541

Guangdong, ChinaD&D HARDWARE INDUSTRIAL CO., LIMITED

US$10.14

200-1,999 Pieces

US$8.50

2,000-4,999 Pieces

US$6.96

5,000+ Pieces

Sample price:US$15.21/piece.Request sample

Product profile

Customization

Available

After-sales Service

Online Technical Support

Warranty

5 Year

Model NO.

DDCH008-UL-G40

Type

3D Adjustable Concealed Hinge

Finish

Silver, Black, Gold, Polish Brass, Ab, etc.

Material

Zinc Alloy & Aluminum

Size

25X150mm

Min. Door Thickness

35mm

Max Door Weight of 2 Hinges

40kg

Opening Angel

180 Degree

Door Panel up-Down Adjust

±2.5mm/±3mm

Door Panel Left-Right Adjust

±1.5mm

Door Gap Dimension Adjust

±2mm

Style

Modern Simple

Application

Commercial & Residential Building

Transport Package

White Box or Color Box, Carton Packing

Specification

For Export

Trademark

D&D or mark client's logo

Origin

Jiangmen Guangdong, China

HS Code

8302100000

Production Capacity

200, 000 / Month

Key features

UL Fire-Rated Certification: Meets UL standards for fire safety in commercial and residential buildings.

Durable Zinc Alloy Material: Constructed from high-strength Zinc Alloy and Aluminum Alloy for longevity.

3D Adjustable Design: Allows precise vertical, horizontal, and gap adjustments for perfect alignment.

High Load Capacity: Supports up to 40-120kg door weight with a pair of hinges.

Wide Finish Options: Available in Silver, Black, Gold, Polish Brass, AB, and other finishes.

180-Degree Opening Angle: Enables full door opening for maximum accessibility and ventilation.

OEM and ODM Services: Custom logo printing and design modifications available for clients.

Company profile

Importers and ExportersExhibition ExperienceOEM ServicesHigh Repeat Buyers Choice

D&D HARDWARE INDUSTRIAL CO., LIMITED

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2021-10-12Nearest Port: Jiangmen, Guangzhou, ShenzhenAverage Response Time: ≤4.04hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, DDP, CIF, DAP

AI-Powered supplier vetting

SummaryThe supplier is identified as a factory in Jiangmen, with a stated business scope covering sales and production of hardware, building materials, household products, appliances, and bathroom fixtures, as well as related R&D and import/export activities. It reports substantial export activity, self-operated import/export rights, OEM service for well-known brands, ODM service, and broad customization capabilities. Innovation evidence includes two R&D engineers and new products launched during the past year, but no SDK is available. Service operations have several documented procedural gaps: complaint handling, supplier assessment, and corrective/preventive actions reportedly lack written records, while overseas warehouses, showrooms, agents, and branches are unavailable. Quality-control evidence is incomplete, with zero stated test equipment and unknown quality assurance and traceability status. No certification information or explicit customer case details are provided.

After-Sales capabilityThe supplier has a complaint-handling procedure, but no written records, and its service-capability assessment and corrective/preventive-action procedures likewise lack records. It has no overseas warehouse, showroom, agent, or branch, although it can provide international quotation terms and reports peak-season lead time of one month. The evidence shows basic service procedures and export coordination, but significant limitations in documented after-sales execution and overseas support.

R&D capabilityThe supplier reports two R&D engineers, new products launched during the past year, R&D responsibilities covering new product development and technical support, and ODM service. However, it has no available SDK, and the small stated R&D team provides only limited evidence of scale. The supplier demonstrates active product-development capability, though its technical-development resources appear limited.

Production capacityThe supplier is identified as a factory with production in its business scope, reports 50 qualified service-capability suppliers, exports 71%–90% of total sales, has self-operated import/export rights, and states off-season lead time within 15 workdays and peak-season lead time of one month. Against this, quality assurance and traceability status are unknown, and the stated quantity of quality-control test equipment is zero. Production and export capability are indicated, but quality-control infrastructure presents an explicit deficiency.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM service availability, providing direct evidence of broad product-design and customization support.