Do you provide free samples?

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

What is your main market?

Our main markets include domestic China, Europe, America, Russia, South America, and the Middle East.

How do you handle customer complaints?

We respond to complaints within 24 working hours and provide a satisfactory solution based on the facts.

Large Wire Diameter Compression Spring

Name: Large Wire Diameter Compression Spring
Brand: Yangzhou Mingfeng Spring Co., Ltd.
SKU: 776622015

Jiangsu, ChinaYangzhou Mingfeng Spring Co., Ltd.

US$4.00

200 Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Function

Measurement

Material

Stainless Steel

Model NO.

MF137

Usage

Industrial, Auto, Furniture

Load Type

Compression

Production Process

Hot Roll

Shape

Coil

Wire Diameterl

as Your Reauest

Free Height

as Your Request

Surface Treatment

Spray-Paint

Professional

More Than 25 Years

Transport Package

Carton

Specification

SGS

Origin

Yangzhou Jiangsu

Production Capacity

2000000 Per Year

Key features

25+ Years Experience: Over 25 years of professional experience in spring manufacturing and production.

High Precision Quality: 100% inspection with six checks including material, routing, and final inspection.

Customizable Options: Wire diameter, free height, and surface treatment can be customized as per request.

Advanced Equipment: More than 50 sets of advanced CNC coil spring machines imported from Taiwan.

Fast Response Time: Customer complaints receive a response within 24 working hours with satisfied solutions.

Certified Manufacturer: IATF16949 and SGS certified with ISO9001:2015 management system.

Large Production Capacity: Annual production exceeds 800 million pieces with high volume capability.

Free Sample Available: Free samples are available subject to company rules for quality verification.

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 your company's production capacity?

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

Q:How do you ensure product quality?

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

Q:What is the delivery time for orders?

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

Q:Can you customize the spring specifications?

Yes, wire diameter, free height, and surface treatment can be customized according to your request.

Q:What surface treatments are available?

Standard is silver (Trivalent Zinc Plating). Black, yellow, red, green, and blue are also available via powder or paint spraying.