What materials and certifications do you use?

We use materials like ASTM A229 (82B) steel. We are certified by ISO9001-2008, ISO14000, ISO18000, ISO/TS16949-2009, and SGS.

Garage Door Wire Forming Spring Torsion Spring for Door Lock

Name: Garage Door Wire Forming Spring Torsion Spring for Door Lock
Brand: Jinan Chenji International Trade Co., Ltd.
SKU: 2138044822

Shandong, ChinaJinan Chenji International Trade Co., Ltd.

US$9.90

20-99 Pieces

US$7.90

100-299 Pieces

US$6.90

300+ Pieces

Sample price:US$58.00/piece.Request sample

Product profile

Customization

Available

Function

Buffer, Drive

Material

Steel

Model NO.

DDL-60

Usage

Auto, Home Appliance

Load Type

Torsion

Production Process

Cold Roll

Shape

Spiral

Spring Material

Steel Alloy

Structure

Wire Spiral Coil

Package

Polybag-Paper Carton-Wooden Case

Custom HS Code

73202010

Wire Diameter

207 218 225 234 243 250 262

MOQ

Products Name

Auto Door Spring

End Type

Accepted for Customized

Application 1

Residential Garage Door

Application 2

Commercial Railing Shutter Door

Name

Garage Door Springs

Advantage

Fast Delivery and Clean Package

Order Qty

OEM/ODM Services Are Available

Delivery Time

5-7 Days

Surface Treatment

Customized

Transport Package

Standard Sea Worthy

Specification

standard

Trademark

chenji

Origin

China

HS Code

7320209000

Production Capacity

49000PC/Week

Key features

Customized Dimensions: Wire diameter, inner diameter, and length are fully customizable to customer requirements.

High Cycle Durability: Standard 15,000 cycles available; high cycle options up to 25,000+ cycles for extended life.

OEM/ODM Services: Professional manufacturer offers OEM/ODM services with a first-class technical team.

Wide Compatibility: Suitable for residential garage doors, commercial overhead doors, and rolling shutters.

Multiple Surface Treatments: Available in Oiled, Galvanized, and Electrophoresis Coating for enhanced corrosion resistance.

Fast Delivery: Delivery within 7-15 working days after deposit; samples ready in 5-7 workdays.

ISO Certified Quality: Manufactured under ISO9001-2008 standards with strict QC checking before delivery.

Easy Installation: Coil style design with precut fittings installed for quick and effortless installation.

Company profile

Years of Export ExperienceImporters and Exporters

Jinan Chenji International Trade Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2014-09-17Nearest Port: QingdaoAverage Response Time: ≤1.47hTerms of Payment: T/T, PayPal, Western UnionInternational Commercial Terms(Incoterms): FOB, CFR, CIF

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier offering 3D software design, SDK support, ODM, OEM, and multiple customization options. It reports brewing-equipment production of 1,000 sets annually, exports to a broad range of regions, and generally states lead times of within 15 working days off-season and one month during peak season, although another slice reports within 15 working days during peak season. CE certification and regular fire drills are documented. After-sales services include installation, debugging, maintenance, repair, and training. Financial records are indicated for 2021–2023, but no financial performance values are provided. Innovation evidence is weak because no new products were launched in the past year, and quality-control test equipment is reported as zero. The supplier states OEM service for popular brands, but no specific customer names or case details are provided.

Supplier typeThe supplier is explicitly identified as a professional technical supplier and provides 3D software design services. This supports classification as a technical and design-capable supplier rather than only a standard product manufacturer.

CertificationsThe supplier reports sustainable-development and product certification capability through CE certification. This is explicit certification evidence, although no additional certification types are listed.

After-Sales capabilityThe supplier has documented procedures and records for handling customer complaints and service corrective/preventive actions. It offers installation, debugging, maintenance, repair, and training, with service coverage determined by customer demand; however, it has no overseas warehouses, showrooms, agents, or branches.

Production capacityThe supplier reports annual brewing-equipment production of 1,000 sets, exports to numerous global regions, and an off-season lead time within 15 working days. It also reports one month for peak-season fulfillment in one slice, while another states within 15 working days during peak season, so peak-season capacity information is inconsistent.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. This is direct evidence of broad customization capability.