Heavy Duty 6-Inch Torsion Spring for Industrial Door Systems

Name: Heavy Duty 6-Inch Torsion Spring for Industrial Door Systems
Brand: Hefei Wang Qin Spring Co., Ltd.
SKU: 2313132415

Anhui, ChinaHefei Wang Qin Spring Co., Ltd.

US$1.20-1.50

5,000 Kg

Product profile

Customization

Available

Function

Drive, Restoration

Material

High Carbon Steel

Model NO.

QY260354

Usage

Industrial, Furniture, Home Appliance

Load Type

Torsion

Production Process

Cold Roll

Shape

Coil

Size

Customizable

Key Features

Premium High-Tensile Steel Construction,

Core Functions & Benefits

Compatible with Most Standard Sectional Garage Doo

Common Applications

Residential Sectional Overhead Garage Doors

Transport Package

Standard Packing, Pallet

Specification

95mm/133mm/152mm

Trademark

Origin

Hefei Anhui China

HS Code

7320909000

Production Capacity

5000pairs/Week

Key features

Premium High-Tensile Steel: Constructed from high carbon or 60Si2MnA alloy steel for superior hardness and strength.

Long Service Life: Professional heat treatment ensures 18,000+ open/close cycles with stable performance.

Anti-Rust Protection: Available with powder coating, galvanized, oiled, or electrophoretic surface treatments.

Full Customization: Customizable wire diameter, inner diameter, length, color, and load weight.

Strict Quality Control: 100% inspection of tension, hardness, and cycle life before shipment.

SGS Certified Quality: All products come with SGS test reports, material certificates, and factory inspection reports.

Versatile Applications: Ideal for residential, commercial, and industrial garage doors and rolling shutters.

Fast Delivery: 7-15 working days for formal orders and 3-5 days for samples.

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.