What kind of technical support is provided?

We offer online technical support for installation and usage issues.

How many cycles can the hinge withstand?

The hinge is durable and can withstand at least 200,000 cycles.

Factory Wholesale Concealed Hinges 2D Hydraulic Positioning Free Stop Hidden Door Hinge

Name: Factory Wholesale Concealed Hinges 2D Hydraulic Positioning Free Stop Hidden Door Hinge
Brand: D&D HARDWARE INDUSTRIAL CO., LIMITED
SKU: 1927026675

Guangdong, ChinaD&D HARDWARE INDUSTRIAL CO., LIMITED

US$47.83

200-1,999 Pieces

US$43.05

2,000-4,999 Pieces

US$38.75

5,000+ Pieces

Sample price:US$57.40/piece.Request sample

Product profile

Customization

Available

After-sales Service

Online Technical Support

Warranty

5 Year

Model NO.

DDCHSL04

Type

Concealed Door Hinges

Finish

Black, Gunmetal Gray or Customized

Material

Zinc Alloy

Materials

Zinc Alloy

Adjustable Stop Position

Free-Stop Function at 85°-125°

Horizontal(Left/Right)

±2mm

Vertical(up/Down)

±2mm

Door Weight

60-100kg

Operating Temperature Range

-5°-45°C

Opening Angel

180°

Feature

Durable, Concealed Installation

Durability

≥200,000 Cycles

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

2D Adjustable Design: +/-2mm left-right & +/-2mm up-down adjustment for easy door gap correction.

Hydraulic Free-Stop & Self-Closing Function: Stable 6N.m closing torque, free stop between 85 degree -125 degree, max 180 degree wide opening.

Super Durable & Wide Temperature Adaptation: Tested over 200,000 opening cycles, works steadily at -5 degree centigrade to 45 degree centigrade.

Multi-Grade Heavy Load Capacity: Three load options: 80kg / 100kg / 120kg, fits doors with thickness from 45mm to 55mm.

Custom Finishes & Concealed Aesthetic: Available in black, gunmetal gray and custom colors; fully hidden installation for minimalist doors.

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: ≤4.98hTerms 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.