What is the lead time for production?

The average lead time is one month for both peak season and off-season periods.

What type of switch is used for control?

The system utilizes a rotary switch type for operation.

Extension Constant Force Coil Springs Steel Flat Spiral Torsion Springs

Name: Extension Constant Force Coil Springs Steel Flat Spiral Torsion Springs
Brand: Yangzhou Yinjiang Canvas Products Co., Ltd.
SKU: 2212967145

Jiangsu, ChinaYangzhou Yinjiang Canvas Products Co., Ltd.

US$550.00

10-49 Pieces

US$539.00

50-99 Pieces

US$495.00

100-199 Pieces

US$440.00

200+ Pieces

Sample price:US$2.50/piece.Request sample

Product profile

Customization

Available

Color

Black

Compatibility

Freightliner

Model NO.

Spiral Torsion Flat Spring

Finish

Chrome Plated

Installation Method

Clamp-on

Material

Steel

Placement

Rear

Structure

Load-bearing Body

Style

Custom Style

Type

Dumper Tarp System

Gearbox Motor

12V/24V Optional

Switch Type

Rotary Swith

Wind Deflector

Alumium

Tarp

Mesh

Tarp Axle

Alumium

Corner

90, 30, 45 Degree

Transport Package

Packed in Wooden Cases

Specification

Custiomized

Trademark

Y&J TARP SYSTEM

Origin

China

HS Code

8716900000

Production Capacity

100000/ Month

Key features

Custom Corner Angles: Available in 90, 30, and 45 degree configurations to fit specific truck models.

Dual Voltage Motor: Gearbox motor supports 12V or 24V optional settings for versatile power sources.

Durable Material Build: Constructed with aluminum arms and mesh tarps for lightweight strength and durability.

OEM/ODM Support: Full customization options available including samples, designs, and minor adjustments.

Rotary Switch Control: Features a rotary switch type for intuitive and reliable system operation.

Wind Deflector Design: Integrated aluminum wind deflector improves aerodynamics and fuel efficiency.

Established Manufacturer: Over 20 years of export experience with strong R&D and quality control systems.

Flexible MOQ: Minimum Order Quantity is just 1 PC, allowing for easy trial and small batch orders.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Yangzhou Yinjiang Canvas Products Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 20 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryThe supplier is a limited company offering tarpaulin and tent products, with 199 employees and two production lines. It reports 20 years of export experience, finished-product inspection instructions, written supplier-assessment procedures, and documented corrective, preventive, and complaint-handling procedures. Customization and ODM services are available, and the supplier states that it has introduced new products within the past year. However, the provided information does not establish certifications, financial strength, or customer cases. Manufacturing controls show weaknesses: there is no valid contract with related subcontractors, no continuous quantity reconciliation for batch production, and no outsourcing standard operating procedure. Overseas service coverage is limited, with no overseas agents or branches, warehouses, or showrooms, and zero countries listed for overseas services.

Supplier typeThe supplier is identified as a limited company with a stated product scope of tarpaulin and tents. Its business-scope information also includes licensed road freight transportation excluding dangerous goods, subject to relevant approvals.

After-Sales capabilityDocumented procedures and records exist for corrective and preventive actions and customer complaint handling, and the supplier has in-stock service capability. However, it reports no overseas warehouse, showroom, agent, or branch, and lists zero countries for overseas services, limiting demonstrated overseas after-sales coverage.

R&D capabilityThe supplier states that it launched new products during the past year, provides ODM services, and has an available SDK. These statements directly support active product-development and technical capability.

Production capacityThe supplier has two production lines, reports one-month average lead times in both peak and off-season periods, and uses written, followed procedures for finished-product inspection and supplier assessment. Nevertheless, it lacks a valid manufacturing contract with related subcontractors, continuous batch-quantity reconciliation, and an outsourcing standard operating procedure, indicating significant production-control gaps.

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

Client casesThe supplier states that it provides OEM services for well-known brands and has participated in the Canton Fair. These demonstrate some market-facing experience, but no specific customer names, projects, or verifiable case details are provided.