Durable 3 3/4 Inch Torsion Spring for Precision Engineering Applications

Name: Durable 3 3/4 Inch Torsion Spring for Precision Engineering Applications
Brand: Hefei Wang Qin Spring Co., Ltd.
SKU: 2301960255

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

Function

Balanced System

Material

Steel

Model NO.

1000025

Usage

Industrial, Furniture, Home Appliance, Garage Door

Load Type

Torsion

Production Process

Cold Roll

Shape

Coil

Wire

2.0-12mm

Cycles

10000-30000

Length

Customized

Inner Diameter

2 Inch

Transport Package

Wood Box

Specification

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

Trademark

WangQin

Origin

Hefei Anhui

HS Code

73209000

Production Capacity

5000pairs/Week

Key features

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

Full Customization Support: Customizable wire diameter, length, inner diameter, and wind direction per drawings.

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

Multiple Finish Options: Available in Oiled, Powder Coated, Galvanized, and Electrocoated finishes.

Factory Direct Supply: Direct manufacturer supply since 2006 with fast global delivery.

Strict Quality Control: 100% pre-shipment inspection including load and cycle testing.

OEM & ODM Services: Full OEM/ODM support including logo and packaging customization.

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: ≤2.62h

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.