What payment methods do you accept?

We accept T/T, Western Union, or PayPal before production. Other payment methods are negotiable.

What are your terms of payment?

For payments under 1000 USD, 100% is required in advance. For payments of 1000 USD or more, 30% T/T is required in advance, with the balance due before shipment.

What is your sea shipping port?

We usually ship from the Shanghai port. Please contact us ASAP if you have any problems.

What is your warranty period?

We provide one year of after-sales service warranty.

Manufacturer Specialized Supply Adjustable Large Garage Door Torsion Spring for Rolling Shutter

Name: Manufacturer Specialized Supply Adjustable Large Garage Door Torsion Spring for Rolling Shutter
Brand: Hefei Wang Qin Spring Co., Ltd.
SKU: 1903335045

Anhui, ChinaHefei Wang Qin Spring Co., Ltd.

US$0.90-1.40

500 kg

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Door Spring

Material

High Carbon Steel

Model NO.

QY1018

Usage

Industrial, Auto, Furniture, Home Appliance

Function

Drive, Restoration, Measurement

Load Type

Torsion

Wire Diameter

2.0mm-12.0mm

Transport Package

Standard Packing, Pallet

Specification

as your Require

Trademark

Origin

Hefei Anhui China

HS Code

7320909000

Production Capacity

5000pairs/Week

Key features

Durable Material Composition: Made of high carbon steel coils with aluminum cones for weather resistance.

Long Cycle Life: Engineered for minimum 10,000 cycles with +/- 7.5lbs accuracy.

Customizable Dimensions: Available in various diameters including 1 3/4', 2', 2 5/8', 3 3/4', 5 1/4', 6' and others.

Versatile Surface Treatment: Options include white zinc plating, nickel plating, chrome, powder coating, and oil painting.

Professional OEM/ODM Service: Accepts custom drawings, samples, and dimensions for tailored spring solutions.

ISO9001 Certified Quality: Manufactured under ISO9001 standards with 100% finished product inspection.

Flexible MOQ Policy: Small trial orders are welcome with a minimum order quantity of 100 pairs.

Fast Delivery Time: Standard delivery within 7-15 workdays, or 3-5 days after order confirmation.

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: ≤1.68h

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 in the spring field, we accept OEM. Just give us your design, and we will make samples for you soon.

Q:Can you do design for me?

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

Q:What are your strengths?

Our strengths include competitive pricing, high quality, good communication with customers, and the best after-sales service.

Q:What is your packing method?

We offer standard packing with PE bags, plywood cases, wooden cartons, and pallets. We also provide packing based on your specific requirements.

Q:How long is your delivery time?

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