What finishes are available?

Available finishes include Silver, Black, Golden, Antique Brass, and Nickel.

Is the hinge suitable for heavy doors?

Yes, it supports doors weighing up to 120kg depending on the specific model.

What is the sample time?

Samples can be prepared within 7 working days.

Zinc Alloy/ SS304 Adjustable Door 3D Concealed Hinge for Long Service Life

Name: Zinc Alloy/ SS304 Adjustable Door 3D Concealed Hinge for Long Service Life
Brand: TOPUNION HARDWARE AND PLASTIC CO., LIMITED
SKU: 934853335

Guangdong, ChinaTOPUNION HARDWARE AND PLASTIC CO., LIMITED

US$7.00-13.60

50 Pieces

Sample price:US$6.07/piece.Request sample

Product profile

Customization

Available

After-sales Service

3 Years

Warranty

3 Years

Model NO.

IH120

Type

Vertical Adjustment Range 3/16"

Finish

Refer to Requirement

Material

Stainless Steel

Lead Time

45-60 Days

Logo

Laser on Lever Post

Min Thickness

35mm,40mm,45mm

Feature

Adjustable

Application

Hotel, Covernment , Apartment Building etc.

Max Weight

40kg,60kg,80kg,100kg,120kg

Screws

Stainless Steel 304

Suitable for

Wooden,Steel,Profile,Folding Door etc.

Color

Black,Sliver,Golden, Antique Brass, etc.

Size-Zinc Alloy

246X34X28mm

Siza-Stainless Steel

160×30×34mm

Corrosion Test

72h - 168h Salt Spray Test Passed

Transport Package

White Box Packing

Specification

Refer to Requirement

Trademark

OEM

Origin

China

HS Code

8301600000

Production Capacity

500000PCS/Year

Key features

3D Adjustable Design: Allows precise micro-adjustments in depth, height, and lateral directions for perfect alignment.

Soft-Close Function: Integrated damping system ensures quiet, gentle closing and prevents slamming.

High Corrosion Resistance: Passed 72H-168H salt spray test, ideal for humid environments like kitchens and bathrooms.

Complete Invisibility: Entirely hidden when installed for a clean, seamless, and minimalist appearance.

Durable Material: Constructed from high-grade stainless steel or zinc alloy with a durable finish.

Wide Application: Suitable for wooden, steel, profile, and folding doors in hotels, apartments, and furniture.

Easy Installation: Designed for standard 35mm cup hole installation, saving time and labor costs.

Customization Options: Supports full customization, minor customization, and customization from samples or designs.

Company profile

High Repeat Buyers ChoiceExhibition ExperienceStandardized quality controlManagement Certification

TOPUNION HARDWARE AND PLASTIC CO., LIMITED

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 4 Years CertifiedNearest Port: Shenzhen Port, Guangzhou PortAverage Response Time: ≤10.07h

AI-Powered supplier vetting

SummaryTopunion Hardware & Plastic Co., Limited is identified as a professional architectural hardware manufacturer established in 2002, with stated manufacturing, R&D, sales, and customer-service capabilities. Evidence supports broad customization, 3D software design, OEM/ODM, and multiple machining and testing facilities. The supplier reports quality assurance, documented corrective-action and complaint-handling procedures, and ISO9001:2015 certification. Production information includes specified outputs for several hardware products and peak-season fulfillment within 15 workdays. Export sales represent 71%–90% of total sales, with four years of export experience. Financial records are referenced for 2021–2023, but no substantive financial results are provided. Innovation capability is mixed: R&D and design services are documented, while SDK availability is explicitly absent. No factory environmental impact assessment report is available, although this does not directly determine the requested fields.

Supplier typeThe supplier is explicitly described as a professional technical supplier and professional architectural hardware manufacturer. Its stated scope covers hardware development, manufacturing, wholesale, security equipment, plastic products, and related import/export activities, indicating a manufacturing-oriented supplier with product-development capability.

CertificationsThe company states that its products are designed and manufactured according to ANSI or EN/DIN standards, and it holds an ISO9001:2015 certificate. These are explicit indications of standards alignment and quality-management certification.

After-Sales capabilityThe supplier reports clear procedures and followed records for corrective and preventive actions and customer-complaint handling. Its company description also lists customer service as part of its operating capabilities, providing direct evidence of an organized after-sales process.

R&D capabilityThe supplier reports R&D capability, 3D software design services, hardware product development, OEM/ODM, and extensive customization. However, SDK availability is explicitly marked as unavailable, so the evidence supports product and design innovation but not SDK-based development.

Production capacityProduction capability is supported by stated machining, stamping, cutting, drilling, welding, milling, CNC, packing, riveting, and testing facilities, along with specified outputs for sliding-door rollers, lever handles, and pull handles. The supplier also reports peak-season order fulfillment within 15 workdays, indicating documented manufacturing capacity and delivery capability.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also states that customized logos and packaging, OEM, and ODM are available, demonstrating broad product and branding customization support.