What is the lead time for production?

The lead time is generally 6-10 days.

What is the warranty period?

The period validity is one year.

Custom OEM Stainless Steel Constant Variable Force Spring for Fire Damper 3m Cables

Name: Custom OEM Stainless Steel Constant Variable Force Spring for Fire Damper 3m Cables
Brand: Dongguan Weihui Hardware Spring Products Co., Ltd.
SKU: 836323955

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

US$0.03

1,000 Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Function

Drive, Measurement

Material

Stainless Steel

Model NO.

N/A

Usage

Industrial, Auto, Motorcycle, Home Appliance

Load Type

Bend

Production Process

Hot Roll

Shape

Coil

Transport Package

Inner Plastic Bag and Outer Carton

Specification

CUSTIOMIZED

Trademark

N/A

Origin

China

HS Code

7320909000

Production Capacity

30000 Pieces/Week

Key features

Custom OEM Service: Supports customization from samples, designs, and full customization for stainless steel springs.

High Supply Capacity: Capable of supplying 3,000,000 pieces per week with a lead time of 6-10 days.

Wide Application Range: Suitable for counterbalances, cable retractors, appliances, and industrial machine parts.

Durable Material: Made from Stainless Steel 301 with an endurance limit of 100,000 cycles.

Fast Sample Delivery: Samples available for approval within 7 days, free of charge if tools are available.

Professional Manufacturer: Established in 2006 with 9 years of experience in spring manufacturing and quality control.

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: ≤4.49h

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 a constant force spring used for?

It is used for applications requiring a constant load, such as counterbalances, door closers, cable retractors, hose retrievers, and various appliances. It generates constant force to lift goods at an even speed.

Q:How is the load of a constant force spring determined?

The load is basically determined by the thickness and width of the material and the diameter of the coil.

Q:Can the constant force spring be customized?

Yes, the constant force spring can be customized. You can send your size or drawing to us to check manufacturing feasibility.

Q:What information is needed for customization?

Please provide: 1. Material type, 2. Thickness, 3. Width, 4. Length, 5. Outer diameter or inner diameter.

Q:What is the minimum order quantity?

The minimum order quantity is 1000 pieces.