What finishes are available for corrosion resistance?

Options include oiled, powder coated, galvanized, and electrocoated finishes.

What is the cycle life of the springs?

Available in 10,000, 20,000, or 30,000 cycles depending on application needs.

Robust Garage Door Extension Spring Designed for Maximum Performance

Name: Robust Garage Door Extension Spring Designed for Maximum Performance
Brand: Hefei Wang Qin Spring Co., Ltd.
SKU: 2308535765

Anhui, ChinaHefei Wang Qin Spring Co., Ltd.

US$1.20-1.50

5,000 kg

Sample price:US$1.40/kg.Request sample

Product profile

Customization

Available

After-sales Service

Sincere to The Letter of The Perfect Service, 100%

Warranty

1 Yeay

Model NO.

QYS1370

Type

Door Spring

Material

Metal

Direction

Left Hand & Right Hand

Surface Treatment

Zinc&Black Coated

Length

as Your Require

Spring Cone

1 3/4" - 6"

Size

Customized or Design

Transport Package

Plywood Box

Specification

2-12mm

Trademark

Origin

Hefei

HS Code

7320909000

Production Capacity

60t/Month

Key features

High Cycle Life Options: Available in 10,000, 20,000, and 30,000 cycles for long-lasting performance.

Full Customization Support: Custom wire diameter, length, wind direction, and torque design available.

Premium Material Quality: Made from 82B high-carbon steel wire with excellent fatigue resistance.

Multiple Finish Options: Oiled, powder coated, galvanized, and electrocoated finishes for corrosion resistance.

Factory Direct Supply: Direct from manufacturer since 2006 with fast delivery and global export.

Advanced Manufacturing: Equipped with CNC winding machines and strict quality control systems.

Versatile Applications: Suitable for residential, commercial, industrial, and warehouse garage doors.

Comprehensive Warranty: 1-year warranty coverage for mechanical defects and performance issues.

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: ≤1.11h

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.