What is the endurance limit of the spring?

The product has an endurance limit of 10,000 times.

Do you offer OEM and ODM services?

Yes, we provide OEM and ODM services including customization from samples and designs.

What is your weekly supply capacity?

Our supply ability is 3,000,000 pieces per week.

Fire Damper Constant Force Spring

Name: Fire Damper Constant Force Spring
Brand: Dongguan Weihui Hardware Spring Products Co., Ltd.
SKU: 1970192981

Guangdong, ChinaDongguan Weihui Hardware Spring Products Co., Ltd.

US$0.03

1,000 Pieces

Product profile

Customization

Available

Function

Pressed, Retain

Material

Stainless Steel

Usage

Industrial, Auto, Motorcycle, Home Appliance

Load Type

Extension

Production Process

Hot Roll

Shape

Conical

Transport Package

Plastic Bag and Carton

Specification

custom

Origin

China

HS Code

7320209000

Production Capacity

300000PCS/Month

Key features

Customizable Design: Full customization available from samples or designs with flexible options.

Fast Sample Delivery: Samples sent within 7 days; free of charge if tools are available.

High Endurance Limit: Designed for 10,000 times endurance limit for reliable performance.

Competitive Pricing: Reasonable and competitive prices compared to other manufacturers.

Rapid Response Service: Customer inquiries responded to within 24 hours with best service.

OEM/ODM Capability: Professional manufacturer offering full customization and design support.

Experienced Manufacturer: Over 9 years of industry experience with a strong reputation globally.

High Production Capacity: Supply ability of 3,000,000 pieces per week with 25 production lines.

Company profile

Years of Export ExperienceHigh Repeat Buyers Choice

Dongguan Weihui Hardware Spring 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: ≤3.44h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company and a professional technical supplier with manufacturing, export, service, quality-control, and R&D capabilities. It supports extensive customization, ODM, OEM for well-known brands, and reported new product development in the past year. Production exceeds 10 lines, with 6–10 quality-control staff, but only one year of total R&D engineer experience is stated. Service-support infrastructure is limited: no overseas warehouse, showroom, agents, branches, or offline trade-show participation, and no overseas service countries are reported. The supplier has quality assurance, but lacks written service procedures and an approved-supplier list. Financial records are identified by year, but no performance values are provided. No certification information or specific customer cases is supplied.

Supplier typeThe supplier is explicitly described as a professional technical supplier and a growing manufacturer, while its company type is listed as Combined. It reports more than 10 production lines and offers manufacturing, export trade, service, quality-control, and R&D functions.

R&D capabilityThe supplier is identified as a professional technical supplier, reported new products during the past year, and offers ODM services. However, it has no available SDK, and the stated total experience of R&D engineers is only one year, so the evidence supports product-development activity but not a conclusively strong innovation position.

Production capacityThe supplier operates more than 10 production lines, has 6–10 quality-control staff, and reports peak- and off-season lead times ranging from within 15 workdays to one month. Finished products are checked by packing staff, indicating an inspection step, although the stated inspection method appears limited.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization. It also provides ODM and OEM services, including OEM service for well-known brands, directly demonstrating broad customization capability.