How long is the delivery time?

The delivery time is approximately 30 days after receiving the balance payment.

What is the minimum order quantity?

The minimum order quantity is 500 pieces, though samples can be offered.

What is the durability life of the product?

The product can withstand up to 30,000 opening-closing cycles without performance decline.

Office Building Fire-Proof Concealed Frame Door Hydraulic Door Closer

Name: Office Building Fire-Proof Concealed Frame Door Hydraulic Door Closer
Brand: Zhaoqing Gaoyao Jinhuida Hardware Products Co., Ltd.
SKU: 2297637425

Guangdong, ChinaZhaoqing Gaoyao Jinhuida Hardware Products Co., Ltd.

US$13.50

100-299 Pieces

US$12.90

300+ Pieces

Sample price:US$13.50/piece.Request sample

Product profile

Customization

Available

After-sales Service

24 Hours Online

Warranty

3 Years Warranty

Model NO.

JL-509

Material

Aluminum Alloy

Type

Surface Mounted

Installation Type

Doorframe

Function

Delay

Standard

Chinese Standard

Remote Control

Without Remote Control

Door Width

2000mm

Door Weight

45~65Kg

Usage

Market, Home, Hotel, Office, Hospital, School

Color

Silver

MOQ

500PCS

Sample

Could Be Offered

Life Time

200000 Circles

Shape

Round or Square

Operating Temperature Range

-40 Degree~+60 Degree

Closing Speed Adjustable Vales

180-20 Degree

Latching Dynamism Adjusting Vales

20-0 Degree

Ho or Nho

Optional

Logo

Silk Printed

OEM/ODM

Available

Transport Package

Inner Box+Outside Carton

Specification

230*460*23.5mm

Trademark

JIANLAI

Origin

China

HS Code

8302600000

Production Capacity

100000PCS Per Month

Key features

Premium Aluminum Alloy: High-quality die-cast material offering sturdy, anti-corrosion properties and long service life.

Concealed Installation: Invisible design when closed, keeping door surface clean and maintaining modern aesthetics.

Dual Adjustable Valves: Hydraulic system allows independent adjustment of closing speed and latching force for smooth operation.

3-Year Warranty: Comprehensive coverage for mechanical defects with reliable after-sales support.

High Durability: Withstands up to 500,000 opening-closing cycles without performance decline.

Wide Application Range: Suitable for wooden, aluminum-framed, and glass frame doors with weights from 35kg to 80kg.

Customization Options: OEM/ODM services available including logo printing and flexible customization from samples or designs.

Silent Operation: Prevents door slamming, finger pinching, and wall collision with smooth automatic closing.

Company profile

High Repeat Buyers ChoiceCustomization from SamplesODM ServicesStandardized quality control

Zhaoqing Gaoyao Jinhuida Hardware Products 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: 10 Years CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤3.57h

AI-Powered supplier vetting

SummaryGaoyao Jinhuida Hardware Products Co., Ltd. has operated in the industry for 20 years and manufactures floor springs, door handles, and shower hinges. It reports an R&D center, testing system, recent new-product development, ODM/OEM services, multiple customization options, and OEM service for recognized brands. Production capacity is substantial for the listed products, with exporting experience since 2012 and stated export sales participation of 21%–30%. The supplier also reports ISO9001:2015 certification, documented corrective-action and complaint-handling procedures, and testing against national standards. However, it reports no quality assurance capability, no in-stock capability, no overseas warehouse, showroom, agent, or branch, no offline trade-show participation, no valid manufacturing-capacity contract with related subcontractors, and no available SDK. Customer cases and detailed financial performance are not sufficiently evidenced.

Supplier typeThe supplier is a hardware manufacturer with 20 years of industry experience, its own brands, production equipment, production lines, an R&D center, and a testing system. Its stated products include floor springs, door handles, and shower hinges, and it exports through both agency channels and its own import/export rights.

CertificationsThe supplier states that products enter production after rigorous testing and reaching national standards, and it reports an ISO9001:2015 certificate. These statements provide explicit evidence of quality-system certification and standards-oriented testing, although no other certifications are identified.

After-Sales capabilityThe supplier describes pre-sale, sales, and after-sales service supported by qualified technical staff and marketing networks. It also reports documented procedures and records for customer complaints and corrective/preventive actions, but separately reports no quality assurance capability.

R&D capabilityThe supplier reports an R&D center, a detection system, new products during the past year, ODM capability, and multiple R&D customization modes. It also explicitly reports no available SDK, which limits evidence of software-development support but does not negate the stated hardware R&D capability.

Production capacityThe supplier reports advanced production equipment and lines, annual capacities of 500,000 floor springs, 400,000 door handles, and 400,000 shower hinges, plus one-month average lead times in both peak and off-season. Nevertheless, it reports no valid manufacturing-capacity contract with related subcontractors and no in-stock capability; the stated production data still supports manufacturing capability.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, alongside ODM services and OEM production. It also reports OEM service for recognized brands, providing direct evidence of broad customization and contract-manufacturing capability.