What are the adjustable functions?

It features adjustable closing speed, delay function, and back check.

What materials are used for the door closer?

The product is made of aluminum alloy with an electrostatic paint finish.

What is the maximum opening angle?

The maximum opening angle is 180 degrees.

Adjustable Middle Duty Hydraulic Automatic Commerical Door Closer

Name: Adjustable Middle Duty Hydraulic Automatic Commerical Door Closer
Brand: Zhaoqing Gaoyao Jinhuida Hardware Products Co., Ltd.
SKU: 2121321475

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

US$4.03

500 Pieces

Sample price:US$4.53/piece.Request sample

Product profile

Customization

Available

After-sales Service

3 Years

Warranty

3 Years

Model NO.

JL-504

Material

Aluminum Alloy

Type

Outside-mounted

Installation Type

Slide

Function

Stop, Delay, Adjustable

Remote Control

Without Remote Control

Door Width

1200mm

Door Weight

45~65Kg

Usage

Fire Exits, Home, Hotel, Office, Hospital, School

Arm

Iron

Shape

Square

Logo

Sample

Avaliable

Sample Lead Time

Around 7 Days

OEM

Accepted

MOQ

500PCS

Speed Adjustment

Closeing: 0 Degree - 20 Degree

Delivery Time

Ship in 25-30 Days After Transfer

Closing Speed Adjust

180 Degree to 20 Degree

Force

En3

Back Check Function

Yes

Delay Function

Yes

Transport Package

One PC Pack in One Box, 10 Boxes Pack in Carton

Specification

40*26*15.2cm

Trademark

JianLai

Origin

China

HS Code

8302600000

Production Capacity

500000

Key features

3-Year Comprehensive Warranty: Covers all mechanical defects with free parts and labor for 3 years.

High Durability Material: Constructed from aluminum alloy with electrostatic paint finish.

500,000 Cycle Lifespan: Proven durability with no damage after 500,000 opening/closing cycles.

Full Customization Options: Accepts custom arm, shape, logo, and design-based customization.

Adjustable Closing Speed: Features adjustable closing speed from 0 to 20 degrees.

Multiple Safety Functions: Includes back check, delay function, and adjustable stop features.

Wide Door Compatibility: Suitable for doors 600-1200mm wide and 25-45kg weight.

Versatile Application: Ideal for fire exits, homes, hotels, offices, hospitals, and schools.

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.