What materials are used for the cover plate?

The cover plate is made of SS201 or SS304 stainless steel with a thickness of 1.2mm.

What is the maximum door weight and width supported?

The floor spring supports a door weight of up to 120kg and a door width of 1200mm.

Hydraulic Door Hinge Adjustble Heavy Duty Entrance Floor Spring

Name: Hydraulic Door Hinge Adjustble Heavy Duty Entrance Floor Spring
Brand: Zhaoqing Gaoyao Jinhuida Hardware Products Co., Ltd.
SKU: 2235023235

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

US$16.00

100-499 Pieces

US$15.70

500+ Pieces

Sample price:US$16.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Online Technical Support

Warranty

5 Years Warranty

Model NO.

JL-84

Material

Stainless Steel

Type

Embedded

Function

Stop, Adjustable, Buffered

Standard

Chinese Standard

Remote Control

Without Remote Control

Door Width

1200mm

Door Weight

120kg

Usage

Market, Home, Hotel, Office, Hospital, School

Color

Silver

Application

Doors in Hotel,Apartment,Office Building,Mall, etc

MOQ

100

OEM / ODM

Available

Sample

Acceptable

Cover Plate Material

Ss201 or SS304

Cover Plate Thickness

1.2mm

Finish

Polish / Satin / Matt Black / Golden

Logo

Punch / Laser

Body Material

Iron

Cement Box Material

Iron

Hold Open

with 90° and 135° Stop-Device

Accessories

for Installation on Wooden or Metal-Framed Doors

Packing

1 Set in a Box, 2 Boxes in a Carton

Sample Time

7-15 Days

Produciton Time

35-45 Days

Transport Package

Inner Box + Outside Carton

Specification

305*110*40mm

Trademark

Jianlai

Origin

China

HS Code

8302410000

Production Capacity

100000 Pieces Per Month

Key features

5-Year Warranty Coverage: Comprehensive 5-year warranty for reliable performance and peace of mind.

Dual-Speed Adjustment: Seamless door closure with controlled closing motion via dual-speed system.

High Durability Cycles: Tested to withstand over 500,000 operational cycles for long-term durability.

Universal Door Compatibility: Compatible with glass, wooden, aluminum, and frame doors.

Customizable Finishes: Available in Polish, Satin, Matt Black, and Golden finishes.

OEM/ODM Services: Full customization, minor customization, and design-based customization available.

Region-Specific Spindles: Available with spindles for Germany, Italy, Japan, and other regions.

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: ≤3.43h

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.