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we accept T/T, western union or paypal before production. Other payments are negotiable

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Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment.

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SHANGHAI port usually; any problems contact us ASAP.

Heavy-Duty Coil Spring for Garage Door with Powder Coating

Name: Heavy-Duty Coil Spring for Garage Door with Powder Coating
Brand: Hefei Wang Qin Spring Co., Ltd.
SKU: 2313633885

Anhui, ChinaHefei Wang Qin Spring Co., Ltd.

US$1.20-1.80

500 kg

Product profile

Customization

Available

After-sales Service

Sincere to The Letter of The Perfect Service, 100%

Warranty

1 Year

Model NO.

QY2628

Type

Door Spring

Material

High Carbon Steel

Wire Diametmer

2.0mm-12.0mm

Direction

Left Hand & Right Hand

Function

Drive, Restoration

Load Type

Torsion

Production Process

Cold Roll

Shape

Colil

Length

as Your Require

Usage

Industrial, Furniture

Inner Diameter

44-152mm

Transport Package

Standard Packaging, Pallet or Wooden Case

Specification

As your require

Trademark

Origin

Hefei Anhui China

HS Code

7320909000

Production Capacity

5000pairs/Week

Key features

Customizable Dimensions: Wire diameter 2.0mm-12.0mm, Inner Diameter 44-152mm, Length as required.

High Carbon Steel Material: Made from 82B High Carbon Steel for high toughness and fatigue resistance.

Long Cycle Life: Available in 10,000, 20,000, or 30,000 cycles for durable performance.

Versatile Finishes: Options include Oiled, Powder Coated, Galvanized, and Electrocoated.

OEM and ODM Support: Full customization from designs or samples with professional R&D team.

1-Year Warranty: Comprehensive one-year after-sales service coverage for peace of mind.

Fast Delivery: Standard delivery within 3-5 days after order confirmation.

Secure Packaging: Multi-layer protection with anti-rust film, foam, and plywood boxes.

Company profile

Patents AwardedFast DeliveryQuality AssuranceR&D Capabilities

Hefei Wang Qin Spring Co., Ltd.

Anhui, 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: 11 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤1.48h

AI-Powered supplier vetting

SummaryHefei Wang Qin Spring Co., Ltd. is a China-based manufacturer/factory in Anhui specializing in automatic door balance system and garage door springs. It reports ISO 9001 certification, nine production lines, in-stock capability, and lead times within 15 working days in both peak and off-seasons. The supplier offers broad customization, ODM, and OEM services for popular brands, but reports no new products in the past year and has fewer than five R&D engineers. Service processes exist for corrective actions and complaints, but written records and formal assessment procedures are absent. It has no overseas warehouse, showroom, agent, branch, or stated overseas-service countries, and lacks a valid manufacturing-capacity contract with related subcontractors. Financial evidence is insufficient for a credibility assessment, while customer-case evidence is limited to OEM service for popular brands and participation in R+T Asia.

Supplier typeThe supplier is identified as a manufacturer/factory and other business entity, organized as a limited company in China, with an operating location and factory address in Anhui. This directly supports classification as a manufacturing supplier.

CertificationsThe supplier reports holding ISO 9001 certification. This is explicit evidence of a certified quality management system, although no certificate scope, issuing body, or validity details are provided.

Production capacityThe supplier describes professional production and testing equipment, strict quality control, nine production lines, inventory capability, and lead times within 15 working days in both seasons. Nevertheless, it reports no valid manufacturing-capacity contract with related subcontractors, so the overall production assessment is positive but not without a documented control gap.

Customization capabilityThe supplier explicitly offers full customization, design-based customization, sample-based customization, minor customization, flexible customization, ODM services, and OEM services for popular brands. These offerings directly support strong customization capability.

Product Q&A

Q:Are you a manufacturer and do you accept OEM?

Yes, as a professional manufacturer, we have been in spring field for over 20 years and we accept OEM! Just give us your design, we will make samples for you soon.

Q:Can you do design for me?

Yes. We have a professional team having rich experience in spring design and manufacturing.Just tell us your door dimension(door width&height, door weight and lifting system), we can custom designed spring size and spring weight.

Q:What is your strengths?

Competitive price High quality Good communication with customers Best after-sales service

Q:What is your packing?

a, Standard packing,PE bags, plywood cases, pallet. b, Based on your requirements.

Q:How long is your delivery time?

Within 3-5 days after order confirmed. Of course, it depends on the actual quantity.