What payment method do you accept?

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

What is your terms of payment?

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

What is your sea shiping port?

SHANGHAI port usually; any problems contact us ASAP.

Industrial Coil Spring for Reliable Overhead Door Performance

Name: Industrial Coil Spring for Reliable Overhead Door Performance
Brand: Hefei Wang Qin Spring Co., Ltd.
SKU: 928129875

Anhui, ChinaHefei Wang Qin Spring Co., Ltd.

US$0.90-1.50

500 kg

Sample price:US$1.20/kg.Request sample

Product profile

Customization

Available

Type

Garage Door Spring

Material

High Carbon Steel

Model NO.

QY1930

Load Type

Torsion

Shape

Coil

Usage

Industrial, Auto, Furniture, Home Appliance

Function

Drive, Restoration, Measurement

Production Process

Cold Roll

Wire Diameter

2.0-12mm

Direction

Left Hand & Right Hand

Inner Diameter

as Your Require

Transport Package

Standard Packing, Pallet

Specification

72B, 82B, 60Si2MnA, 65Mn

Trademark

Origin

Hefei Anhui China

HS Code

7320909000

Production Capacity

5000pairs/Week

Key features

Customizable Dimensions: Made by your drawings, sample and dimension with wire diameter 2.0-12mm.

High Quality Material: Made of high carbon steel coils with aluminum cones, oil tempered and black coated.

Durable Performance: Withstands any weather, minimum 10,000 cycles, and +/- 7.5lbs of target door weight.

OEM/ODM Service: Professional manufacturer with over 14 years experience, accepting OEM and custom designs.

Flexible MOQ: Any small trial order is welcome, supporting flexible customization options.

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

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

Competitive Pricing: Offers competitive prices with high quality and good communication for customers.

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: ≤1.22h

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:How to make Torsion Spring as per your enquiries?

1, Pls provide main specification: Wirediameter, Material, Body length, Maximum outside diameter, minimum inside diameter, Number of coils. 2, detailed drawing or real samples is very useful. 3, door dimension(door width&height,door weight and lifting systerm) is also Ok, we can custom designed.

Q:Are you a manufacturer? Do you Accept OEM?

Yes, as a professional manufacturer, we have been in spring field for over 14years and we accept OEM! Just give us your design, we will make samples for you soon.

Q:What is your strengths?

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

Q:What is your packing?

Standard packing,PE bags, plywood cases, wooden carton, pallet. 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.