What certifications do you provide?

All products can provide SGS test reports, material certificates and factory inspection reports.

What is the cycle life of the springs?

The springs feature a professional heat treatment process with a cycle life of 10,000-30,000 times.

Heavy Load Garage Door Spring High Cycle Life Torsion Spring

Name: Heavy Load Garage Door Spring High Cycle Life Torsion Spring
Brand: Hefei Wang Qin Spring Co., Ltd.
SKU: 2306407955

Anhui, ChinaHefei Wang Qin Spring Co., Ltd.

US$1.20-1.50

5,000 kg

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Sincere to The Letter of The Perfect Service, 100%

Warranty

1 Yer

Model NO.

QYS12016

Type

Door Spring

Material

Metal

Surface Treatment

Oil, Galvanized, Electrophoreticm, Powder-Coated

Length

Cusmtoized

Transport Package

Standard Packing, Plywood Box

Specification

1 3/4" 2" 2 5/8" 3 3/4" 5 1/4" 6"

Trademark

WQ Spring

Origin

Hefei Anhui China

HS Code

7320909000

Production Capacity

5000pairs/Week

Key features

High Cycle Life: Professional heat treatment ensures over 18,000 open and close cycles for long service life.

Customizable Specifications: Supports custom wire diameter, inner diameter, length, color, and loading capacity.

Premium Material Quality: Made of high carbon steel or 60Si2MnA alloy steel for high hardness and strong bearing capacity.

Anti-Rust Surface Treatment: Options include powder coating, galvanizing, oiling, and electrophoresis to prevent rust and deformation.

Strict Quality Control: 100% inspection before shipment with SGS test reports for hardness, tension, and fatigue resistance.

Fast Delivery: 7-15 working days for formal orders, with sample orders delivered within 3-5 days.

Low MOQ Support: Small trial orders and sample orders are acceptable to support new business relationships.

Versatile Application: Suitable for residential, commercial, and industrial garage doors with balanced spring tension.

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.