What is the warranty period?

The validity period is one year.

What payment terms do you accept?

We accept T/T (Telegraphic Transfer) as the payment term.

What is the endurance limit of the spring?

The endurance limit is 100,000 times.

Ss301 Flat Spiral Constant Force Coil Variable Torque Fire Damper Cables Spring

Name: Ss301 Flat Spiral Constant Force Coil Variable Torque Fire Damper Cables Spring
Brand: Dongguan Weihui Hardware Spring Products Co., Ltd.
SKU: 1972246621

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

US$0.02

1,000 Pieces

Sample price:US$0.20/piece.Request sample

Product profile

Customization

Available

Function

Drive, Restoration

Material

Stainless Steel

Usage

Industrial

Load Type

Extension

Production Process

Hot Roll

Shape

Coil

Transport Package

Inner Plastic Bag and Outer Carton

Specification

customized

Origin

China

HS Code

7320909000

Production Capacity

10000PCS/Week

Key features

Customizable Color: Color is customizable according to customer requirements.

OEM and ODM Service: Supports full customization from samples, designs, and minor adjustments.

Fast Sample Delivery: Samples available within 7 days, free if tooling exists.

High Endurance: Endurance limit of 100,000 cycles for reliable performance.

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

Quick Response: Customer inquiries responded to within 24 hours.

Flexible Packaging: Inner and outer packing customized per customer request.

Proven Expertise: Over 9 years of experience in spring manufacturing since 2006.

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: ≤4.18h

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.

Product Q&A

Q:What is the minimum order quantity?

The minimum order quantity is 1000 pieces.

Q:What is the lead time for production?

The lead time is typically 6-10 days.

Q:Can you customize the product based on my drawings?

Yes, we can manufacture nonstandard parts according to your drawings or samples.

Q:What is the supply ability per week?

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

Q:Is the sample fee free?

Samples are free of charge if we have available tooling.

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Ss301 Flat Spiral Constant Force Coil Variable Torque Fire Damper Cables Spring