How do you ensure product quality?

We conduct six checks throughout the process: material inspection, product inspection, routing inspection, pre-plating inspection, final post-plating inspection, and pre-delivery inspection.

What are the available surface finishes?

Standard finish is silver (Trivalent Zinc Plating). Other options include black, yellow, red, green, blue, powder spraying, or paint spraying.

What is your annual production capacity?

Our annual production exceeds 800 million pieces, supported by over 50 sets of advanced CNC machines.

Alloy Conical Compression Spring for Industrial

Name: Alloy Conical Compression Spring for Industrial
Brand: Yangzhou Mingfeng Spring Co., Ltd.
SKU: 793340465

Jiangsu, ChinaYangzhou Mingfeng Spring Co., Ltd.

Negotiable

500 Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Function

Pressed

Material

Steel

Model NO.

MF022

Usage

Industrial, Auto, Furniture, Motorcycle, Home Appliance

Load Type

Compression

Production Process

Cold Roll

Shape

Cylinder

Free Length

150~300mm

Surface Finish

Zinc Plated

Color

as Your Respect

Wire Diameter

8~22mm

Transport Package

as Your Request

Specification

TS16949, SGS, ISO9001

Trademark

Origin

Yangzhou, China

Production Capacity

10000 Per Month

Key features

Full Customization Options: Supports customization from samples, designs, and full minor customization for wire diameter, length, and finish.

ISO9001 & TS16949 Certified: Manufactured under strict ISO9001 and TS16949 quality standards with SGS certification.

High Precision CNC Machinery: Over 50 sets of advanced imported CNC coil spring machines ensure high-quality production.

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

Wide Material & Finish Range: Available in stainless steel, carbon steel, and alloy with zinc plating, chrome, or paint finishes.

Large Production Capacity: Annual production exceeds 800 million pieces with a 29-year manufacturing history.

Fast Response to Complaints: Customer complaints are responded to within 24 working hours with satisfactory solutions.

Free Sample Availability: Free samples are provided according to company rules to help customers evaluate quality.

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: ≤4.30h

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 for orders?

Normally, the delivery time is 45 days, excluding holidays and special bulk orders.

Q:Can I customize the spring dimensions and finish?

Yes, we support full customization including wire diameter (8-22mm), free length (150-300mm), and surface finishes like zinc plating or paint spraying.

Q:What materials are used for the compression springs?

We use carbon steel, stainless steel, alloy steel, and oil-tempered spring steel, sourced from reputable suppliers in Jiangsu and Zhejiang.

Q:Do you provide free samples?

Yes, free samples are available according to our company rules to help you assess the product quality.

Q:What is your minimum order quantity (MOQ)?

The minimum order quantity is 500 PCS.