What surface treatments are available?

Options include white zinc plating, nickel plating, chrome plating, cataphoresis, blackening, powder coating, oil application, or painting as per customer request.

What is your packing method?

Standard packing includes PE bags, plywood cases, wooden cartons, and pallets. We also offer packaging based on your specific requirements.

Heavy-Duty 6-Inch Galvanized Steel Coil Spring for Roll-up Doors

Name: Heavy-Duty 6-Inch Galvanized Steel Coil Spring for Roll-up Doors
Brand: Hefei Wang Qin Spring Co., Ltd.
SKU: 919514475

Anhui, ChinaHefei Wang Qin Spring Co., Ltd.

US$0.99-1.98

5,000 kg

Sample price:US$8.00/pair.Request sample

Product profile

Customization

Available

Function

Drive, Restoration, Drive

Material

High Carbon Steel, Steel

Model NO.

QYS056

Usage

Industrial, Furniture, Home Appliance, Garage Door/Industrial Door/Roller Shutter Door

Load Type

Torsion

Production Process

Cold Roll

Shape

Coil

Usage

Industrial, Home Appliance, Door

Load Type

Torsion

Production Process

Hot Roll

Shape

Coil

Transport Package

Standard Packing, Pallet

Specification

72B, 82B, 60Si2MnA

Trademark

Origin

Hefei Anhui China

HS Code

7320909000

Production Capacity

5000pairs/Week

Key features

Professional Manufacturer: Over 11 years experience in spring field with professional design and manufacturing team.

Full Customization: Accept OEM/ODM, custom designs from drawings, samples, or specific dimensions.

Wide Material Options: Available in 72B, 82B, 60Si2MnA high carbon steel with various surface treatments.

Flexible MOQ: Any small trial order is welcome, supporting low minimum order quantities.

Fast Delivery: Delivery within 3-5 days after order confirmation, depending on actual quantity.

Quality Assurance: ISO9001 certified with 100% inspection for function and visual quality.

Versatile Application: Suitable for luxury garage doors, factory lifts, industrial doors, and shutter doors.

Competitive Pricing: High quality products with competitive prices and good after-sales service.

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: ≤1.02h

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 with over 11 years of experience, we accept OEM. Just provide your design, and we will make samples for you soon.

Q:Can you design springs for me?

Yes. Our professional team can custom design spring size and weight based on your door dimensions (width, height, weight, and lifting system).

Q:What is your delivery time?

Delivery is within 3-5 days after order confirmation, though it depends on the actual quantity ordered.

Q:What payment methods do you accept?

We accept T/T, Western Union, or PayPal. For payments under 1000 USD, 100% is required in advance. For payments over 1000 USD, 30% T/T in advance and the balance before shipment.

Q:What is your warranty policy?

We provide one year of after-sales service warranty.