Can I get samples before ordering?

Yes, we offer 3 free samples for evaluation; you just need to provide the courier account for freight collect.

What stainless steel grades do you use?

We mostly work with SUS304 and SUS316, and some items can be SUS201 as well.

Are you a factory or trading company?

We are a SGS Audit factory with over 10 years of manufacturing experience in architectural hardware.

UL Standard School Public Place Use Fireproof Automatic Heavy Duty Door Closer

Name: UL Standard School Public Place Use Fireproof Automatic Heavy Duty Door Closer
Brand: D&D Hardware Industrial Co., Ltd.
SKU: 1949639525

Guangdong, ChinaD&D Hardware Industrial Co., Ltd.

US$14.20

100-2,999 Pieces

US$13.69

3,000-4,999 Pieces

US$13.27

5,000+ Pieces

Sample price:US$21.30/piece.Request sample

Product profile

Customization

Available

Type

Door Plate

Material

Stainless Steel

Model NO.

DDDC018

Finish

Electrostatic Paint

Applied Gate Width/ Gate Weight

En4# / En5# / En6#

Application Range

Plastic-Steel Door ,Wood Door, Aluminium/Iron Door

Max Opening Angle

180 Degree

Feature

Modern

Certification

UL Listed & CE

Speed Control

Two Way Speed Adjustable

2 Speed Control

Closing Speed and Latching Speed

Passed Durability Test

500,000 Cycles

Work Temperature

-30 to 60 Degrees Celsius

Dimension(mm)

L248X W44.5X H72

Width of Door Max

1100mm or 1250mm or 1400mm

Weight of Door Max

80kg -120kg

Application

Commercial & Residential

Universal Application

Standard, Top-Jamb

Transport Package

White Box or Color Box, Carton Packing

Specification

For Export

Trademark

D&D or mark client's logo

Origin

Jiangmen Guangdong, China

HS Code

83024100

Production Capacity

30000 / Month

Key features

UL & CE Certified: Fire rated 3 hours, compliant with UL and CE international standards.

Heavy Duty Durability: Passed 500,000 cycles durability test for long-term reliability.

Precise Speed Control: Two-way adjustable closing and latching speeds for smooth operation.

Wide Application: Suitable for wooden, metal, steel, and fire-rated doors up to 1400mm.

Custom OEM/ODM: Professional OEM and ODM services available for famous brands.

5-Year Guarantee: Comprehensive 5-year mechanical guarantee for product quality.

Stainless Steel Options: Available in SUS304, SUS316, and SUS201 grades for durability.

Fast Sample Service: 3 free samples provided for evaluation with freight collect.

Company profile

D&D Hardware Industrial Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2008-01-12 CertifiedNearest Port: Jiangmen Port, Guangzhou Port, Shenzhen PortAverage Response Time: ≤4.08h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryD&D Hardware Industrial Co., Ltd. is a China-based limited company and factory established in 2018, specializing in door and construction hardware. It operates a 1,368 m² manufacturing plant with six production lines, 45 employees, and 11–20 quality-control staff. The supplier reports ISO 9001:2015 certification and has exported since 2008, with 71%–90% of sales attributed to exports. Its stated capabilities include customization, quality assurance, technical support, and long-term customer relationships, but evidence for after-sales service, specific customer cases, and innovation depth is limited. Financial credibility cannot be conclusively assessed from the available non-financial evidence.

Supplier typeThe supplier is identified as a factory and limited company based in Jiangmen, Guangdong, China. Its stated business scope and product portfolio focus on door hardware, locks, hinges, closers, exit devices, and related construction hardware, indicating a manufacturing-oriented supplier rather than only a trading entity.

CertificationsThe supplier holds an ISO 9001:2015 management-system certificate. This is explicit evidence of a formal quality-management certification, although no additional certifications are provided.

Production capacityThe supplier reports a 1,368 m² manufacturing plant, six production lines, and 11–20 quality-control staff, alongside a broad door-hardware product range. These details provide explicit evidence of an established production setup, although capacity utilization and delivery performance are not stated.

Customization capabilityThe company explicitly claims customization ability and says its qualified team can identify solutions suited to customer needs and technical specifications. This supports a positive assessment, although the slices do not describe customization scope, tooling, minimum order requirements, or completed examples.