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Precision Engineered Torsion Spring for Sectional Overhead Doors and Garage Applications Torsion Spring
US$1.20-2.50
500 kg

Product specifications

Surface Treatment

Sample price:US$2.50/kg.Request sample

Product profile

Customization

Available

Function

Pressed

Material

Steel

Model NO.

Torsion Spring

Usage

Industrial, Auto, Motorcycle, Home Appliance, Garage Door

Load Type

Torsion

Production Process

Hot Roll

Shape

Coil

Packaging Details

Cartons and Pallets

Delivery Time

According to Order Quantity

Application

Garage Door, Industrial Door

Lead Time

6-10days

Transport Package

Pallet

Specification

1-3/4" ~6"

Trademark

NHentrance

Origin

Jiangsu, China

HS Code

7320209000

Key features

Corrosion-Resistant Steel: Manufactured from high-grade steel ensuring long-lasting durability and consistent performance.
Precision Engineered System: Maintains optimal tension to reduce wear on door components and enhance overall safety.
Wide Size Range: Available in various inner diameters from 44.45mm to 152.4mm for diverse door applications.
Global Certifications: Adheres to EU CE, SGS, and ISO9001 standards for quality and safety assurance.
Versatile Application: Suitable for residential and commercial garage doors, industrial, auto, and motorcycle use.
Fast Delivery: Lead time of 6-10 days based on order quantity for efficient project turnaround.

Company profile

NHentrance Co., Ltd.
Raw-Materials TraceabilityR&D CapabilitiesIn-stock CapacityFast Delivery
NHentrance Co., Ltd.Jiangsu, China
Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤1.32h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier with R&D capability, 3D software design services, and broad customization options. It operates two production lines, reports output for high-speed PVC doors, high-speed spiral doors, and dock levelers, and has 11–20 quality-control staff, including 13 inspectors in one record. Quality inspection instructions are reportedly standardized. The supplier has in-stock capability and defined service quotation and payment terms, but lacks overseas agents or branches, overseas warehouses, overseas showrooms, and offline trade-show participation. No valid manufacturing-capacity contract with related subcontractors is reported. Financial records are referenced for 2022–2024, but no financial figures or performance details are provided. No SDK is available, and no customer cases are identified.
Supplier typeThe supplier is explicitly described as a professional technical supplier. Its stated scope includes communication equipment, smart-home devices, molds, office supplies, metal products, and bearings, while its facilities and industry experience cover entrance-related products.
R&D capabilityThe supplier reports professional technical R&D capability, 3D software design services, and over 20 years of industry expertise with a dedicated R&D team. Conversely, no SDK is available, so the evidence supports general product-development capability but not SDK-based integration capability.
Production capacityThe supplier operates two production lines and reports annual output of 10,000 high-speed PVC doors, 12,000 high-speed spiral doors, and 10,800 dock levelers. It has production facilities in Wuxi, Dongtai, and Thailand, but no valid manufacturing-capacity contract with related subcontractors is reported.
Customization capabilityBoth R&D and design-service records explicitly list customization from samples, customization from designs, full customization, minor customization, and flexible customization. This directly supports broad customization capability.

Product Q&A

Q:How do I know if my door spring needs replacement?
A:
Signs include difficulty opening or closing the door, visible wear and tear, or loud noise during operation.
Q:Can I replace a door spring myself?
A:
It is dangerous and requires specialized tools; hiring a professional is recommended.
Q:How long do door springs typically last?
A:
On average, a torsion spring lasts about 7-9 years or approximately 10,000 cycles.
Q:What payment terms are accepted?
A:
We usually accept T/T and L/C, but other terms can be discussed upon request.
Q:What materials are used for the springs?
A:
The springs are made from high-grade, corrosion-resistant steel for durability.

Send Inquiry

*To:NHentrance Co., Ltd.NHentrance Co., Ltd.
*Content:
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