What payment terms do you accept?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Are OEM and ODM services available?

Yes, we offer OEM and ODM services including customization from samples, designs, and flexible minor customization.

What is your company's background?

Founded in 1986, we are a factory specializing in manufacturing various springs with over 25 years of experience and a plant area of over 8000 square meters.

Custom High Carbon Steel Coil Spring

Name: Custom High Carbon Steel Coil Spring
Brand: Yangzhou Mingfeng Spring Co., Ltd.
SKU: 770215705

Jiangsu, ChinaYangzhou Mingfeng Spring Co., Ltd.

US$3.00

1 Piece

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Function

Pressed

Material

Stainless Steel

Model NO.

MF148

Usage

Industrial, Auto, Furniture, Motorcycle, Home Appliance

Load Type

Compression

Production Process

Hot Roll

Shape

Coil

Wire Diameter

10.9mm

Free Height

216mm

Surface Treatment

as Your Request

Professional

More Than 25 Years of Experience

Transport Package

Carton

Specification

SGS

Trademark

Origin

Yangzhou Jiangsu

Production Capacity

200000 PCS/Month

Key features

Comprehensive Customization: Full customization available from samples, designs, or minor adjustments with flexible options.

Diverse Material Options: Available in stainless steel, alloy, spring steel, and carbon steel to meet specific needs.

Extensive Surface Finishes: Offers white zinc, color zinc, nickel plating, chrome plating, and various powder or paint spraying colors.

Certified Quality Management: Holds IATF16949 and SGS certifications ensuring high standards for automotive and industrial use.

Experienced Manufacturer: Over 25 years of experience in spring production with professional technical engineering support.

Advanced Production Equipment: Equipped with over 50 sets of advanced CNC coil spring machines imported from Taiwan.

Rigorous Quality Control: Products undergo six strict checks including material, routing, plating, and final delivery inspections.

Fast Delivery Time: Standard delivery within 45 days, with peak and off-peak lead times within 15 workdays.

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: ≤24h

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.

Product Q&A

Q:What is the delivery time?

Normally our delivery time is 45 days, except for holidays and special bulk orders.

Q:Do you offer free samples?

Yes, free samples are available, though the sample and value must comply with our company rules.

Q:What surface finishes are available?

We offer white zinc, color zinc, nickel plating, chrome plating, and powder or paint spraying in various colors like black, yellow, red, green, and blue.

Q:How do you control product quality?

All products go through six checks: material inspection, product inspection, routing inspection, inspection before plating, final inspection after plating, and inspection before delivery.

Q:What is your minimum order quantity?

The minimum order quantity is 500 pieces.