What surface colors are available for plating?

Normally silver (Trivalent Zinc Plating), but black, yellow, red, green, and blue are also available via powder or paint spraying.

How do you handle customer complaints?

We provide a response within 24 working hours and offer a satisfied answer based on the facts.

What is the packaging method?

Products are protected with plastic caps and then packed in carbon boxes.

Custom Large Stainless Steel Torsion Spring

Name: Custom Large Stainless Steel Torsion Spring
Brand: Yangzhou Mingfeng Spring Co., Ltd.
SKU: 776789795

Jiangsu, ChinaYangzhou Mingfeng Spring Co., Ltd.

US$0.80

1,000 Pieces

Product profile

Customization

Available

Function

Measurement

Material

Stainless Steel

Model NO.

MF179

Usage

Industrial, Auto, Furniture

Load Type

Torsion

Production Process

Hot Roll

Shape

Coil

Wire Diameterl

as Your Reauest

Free Height

as Your Request

Surface Treatment

as Your Request

Professional

More Than 25 Years

Transport Package

Carton

Specification

SGS

Origin

Yangzhou Jiangsu

Production Capacity

2000000 Per Year

Key features

Customizable Dimensions: Wire diameter, outer diameter, and free height are fully customizable as per your request.

Diverse Surface Finishes: Options include white zinc, color zinc, nickel plating, chrome plating, and plastic spraying.

IATF16949 & SGS Certified: Manufacturing process meets international quality standards for automotive and industrial applications.

Advanced CNC Machinery: Equipped with over 50 sets of imported numerical control coil spring machines for precision.

Comprehensive Quality Control: Six-step inspection process covering material, routing, plating, and final delivery checks.

Free Samples Available: Free samples can be provided subject to company rules regarding sample and value.

OEM and ODM Services: Full customization from samples, designs, or minor adjustments with flexible options.

Expert Technical Support: Team includes 6 professional engineers and 4 QA/QC inspectors for dedicated support.

Company profile

Yangzhou Mingfeng Spring Co., Ltd.

Jiangsu, 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: 10 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤18h

AI-Powered supplier vetting

SummaryThe supplier manufactures and sells springs, mechanical components, vibration and noise-reduction equipment, rubber and plastic products, hydraulic components, and related products. It reports broad customization and ODM capabilities, recent new-product activity, OEM service for recognized brands, and production-related facilities covering winding, grinding, spraying, polishing, and punching. Quality control includes four inspectors and documented finished-product inspection instructions. The supplier states that it maintains written procedures for supplier assessment, corrective and preventive actions, and complaint handling. It has valid manufacturing contracts with associated subcontractors and reports inventory capability, but no overseas warehouse or showroom. Export sales represent 41%–50% of total sales, with Shanghai Port identified as the nearest port and stated lead times of within 15 working days in both peak and off-season. Evidence is insufficient to confirm certifications, detailed...

Supplier typeThe supplier is a manufacturer and seller of springs, mechanical parts, vibration and noise-reduction equipment, rubber and plastic products, hydraulic machinery components, and related equipment. Its registered business scope indicates a multi-product industrial manufacturer rather than a pure trading intermediary.

After-Sales capabilityThe supplier reports clear procedures and followed records for handling customer complaints, as well as documented corrective and preventive action procedures. This supports an established complaint-resolution process, although the slices do not provide response times, service results, warranty terms, or overseas service coverage.

R&D capabilityThe supplier states that it had new products during the past year and provides ODM services, indicating ongoing product-development activity. However, it reports no available SDK, and no details are provided on R&D staffing, patents, laboratories, or development resources.

Production capacityProduction evidence includes dedicated winding, grinding, spraying, polishing, and punching facilities, four quality inspectors, documented finished-product inspection instructions, inventory capability, and valid contracts with associated subcontractors. The supplier also reports lead times within 15 working days in both peak and off-season and describes a strict quality system, but the stated monthly production figure is unclear and cannot support a precise capacity assessment.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM availability, providing direct evidence of broad product-development and customization support.

Client casesThe supplier states that it provides OEM services to recognized brands and has received positive customer recognition from the seal, automotive and motorcycle, mechanical, electrical, electronics, and appliance industries. No customer names, project descriptions, order scope, or independently verifiable case details are provided.