What materials are used to construct this door closer?

The body is made of casting iron, and the product is also available in stainless steel.

What are the adjustable closing time settings?

The minimum closing time is 3 seconds, and the maximum is 46 seconds or more.

What is the minimum order quantity?

The minimum order quantity is 500 pieces for customized orders.

Overhead Hydraulic Transom Closer Concealed Door Closer

Name: Overhead Hydraulic Transom Closer Concealed Door Closer
Brand: Zhaoqing Gaoyao Jinhuida Hardware Products Co., Ltd.
SKU: 2243465045

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

US$20.60

500 Pieces

Sample price:US$21.60/piece.Request sample

Product profile

Customization

Available

After-sales Service

2 Years

Warranty

3 Years

Model NO.

JL-868

Material

Stainless Steel

Type

Embedded

Installation Type

Slide

Function

Stop, Delay

Remote Control

Without Remote Control

Door Width

1200mm

Door Weight

80kg to 120kg

Usage

Home, Hotel, Office, Hospital, School

Color

Customized

Materialle

Casting Iron

Finish

Brown/Black/Customized

Body

Casting Iron

Color Packing

Avaliable

MOQ

500 PCS

Accessories

Optional

Door

Wooden Door / Frame Door

Payment Term

T/T 30% Deposit

Delivery Time

Ship in 30-35 Days

Sample

Avaliable

Sample Lead Time

Around 7 Days

Order Lead Time

35-30 Days

Suitable Door Width

1150-1300mm

Max Closing Time

>=46s

Mininum Closing Time

<=3s

Transport Package

One PC Pack in a Box, 4 Boxes Pack in Carton

Specification

34.5*31*17cm

Trademark

Customized

Origin

China

HS Code

8302410000

Production Capacity

500000

Key features

Customized Color Options: Available in black, brown, or fully customized color finishes.

Durable Stainless Steel: Constructed from high-quality stainless steel and casting iron for longevity.

Extended Warranty Coverage: Comes with a 5-year warranty covering mechanical defects.

Wide Door Compatibility: Suitable for doors up to 1300mm width and 120kg weight.

Adjustable Closing Speed: Features adjustable closing time from 3 seconds to over 46 seconds.

Versatile Installation: Designed for embedded installation on wooden or frame doors.

OEM and ODM Services: Full customization available from samples or designs with flexible options.

Rigorous Quality Testing: Undergoes 100% inspection including visual, function, and life tests.

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: ≤3.25h

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.