What certifications does this product have?

Our product has gained EN1154 certificate, ensuring quality and compliance with European standards.

What are the payment terms?

We accept LC, T/T, Western Union, Small-amount payment, and Money Gram.

Top Rated Hidden Hydraulic Concealed Door Closer Adjustment

Name: Top Rated Hidden Hydraulic Concealed Door Closer Adjustment
Brand: Guangzhou Lockvel Security Technologies Co., Ltd.
SKU: 919140215

Guangdong, ChinaGuangzhou Lockvel Security Technologies Co., Ltd.

Negotiable

500 Pieces

Sample price:US$11.00/piece.Request sample

Product profile

Customization

Available

Material

Aluminum Alloy

Type

Outside-mounted

Model NO.

DC1300

Installation Type

Parallel

Function

Buffered

Standard

European Standard

Remote Control

Without Remote Control

Door Width

950mm

Door Weight

65~85Kg

Usage

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

Color

Silver

Transport Package

Carton Packing

Trademark

lockvel

Origin

China

HS Code

83024100

Production Capacity

5000 Sets/ Month

Key features

EN1154 Certified Quality: Complies with EN 1154:1996/A1:2002 standard, passed 500,000 times test.

Durable Aluminum Alloy: Constructed with die-cast aluminum body and pressed steel arm for longevity.

Versatile Application: Suitable for market, fire exits, home, hotel, office, hospital, and school doors.

OEM & ODM Service: We provide customized OEM and ODM services to meet specific client needs.

20+ Years Experience: Over 20 years of manufacturing experience ensures stable production capacity.

Flexible Loading Options: Mix-products loading in one container is available for efficient shipping.

Reliable After-Sales Support: Immediate resolution for quality defects with refund or exchange upon verification.

Company profile

High Repeat Buyers ChoiceSelf-branded

Guangzhou Lockvel Security Technologies Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2018-03-05Nearest Port: Guangzhou portAverage Response Time: ≤8.86hTerms of Payment: LC, T/T, Western Union, etc.International Commercial Terms(Incoterms): FOB, CIF, FAS, DDP, EXW, Others

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization and ODM/OEM capabilities, supported by product development activity and design tools. It reports production-related infrastructure, inventory capacity, valid contracts with associated subcontractors, and lead times within 15 working days in both peak and off-season periods. Quality assurance is reported, with two inspectors and several testing facilities; however, finished-product inspections and corrective/preventive actions lack written records. Innovation evidence is mixed: the supplier has developed new products and offers ODM services, but reports zero patents and no available SDK, while formal R&D audit documentation is unavailable. Export experience is established, but overseas service infrastructure is limited, with no overseas branches, agents, warehouse, showroom, or trade-show participation. Certification, after-sales service, and customer-case evidence are insufficiently documented.

Supplier typeThe supplier operates as a manufacturer offering OEM and ODM services, customization, inventory support, and export services. It has exported for six years, with exports representing 11%–20% of total sales, but has no overseas branches or agents.

After-Sales capabilityThe supplier has a clear customer-complaint handling procedure with followed records, which supports complaint-response capability. However, no broader after-sales service scope, overseas service network, branch, agent, warehouse, or showroom is reported.

R&D capabilityThe supplier reports new product development during the past year, ODM services, and R&D design using PS, AI, and CAD. Countervailing limitations include zero patents, no SDK, and no R&D design input, output, review, verification, or validation documents available for audit.

Production capacityProduction capability is supported by assembly and product-life testing equipment, a stated production base across several locations, inventory capacity, valid manufacturing contracts with associated subcontractors, and lead times within 15 working days in both peak and off-season. The inspection process has instructions but no written records, limiting process-documentation strength.

Customization capabilityThe supplier explicitly offers customization from samples and designs, full, minor, and flexible customization. Its R&D engineers develop products according to customer requirements, indicating broad customer-specific design support.

Product Q&A

Q:Can we get a sample?

Of course. But I am sorry to say that you need to be charged with the freight and sample cost.

Q:Could I visit your factory or office?

Sure, just please tell us in advance, if our time is available, we can pick you up in case you don't know the road to our office or factory.

Q:What should we do if quality defects occurred after received the goods?

Please kindly send us photos with detailed description by email,HT will solve it for you immediately,refund or exchange will be arranged once verified.

Q:Is it possible to load mix-products in one container?

Yes,it's available.

Q:What is the maximum door weight this closer supports?

The door weight capacity is up to 80kg, with a recommended range of 65-85kg.