What is the minimum order quantity (MOQ)?

The minimum order quantity is 500 PCS.

Are free samples available?

Yes, free samples are available. The sample and value should be according to the company's rules.

What certifications does the company have?

The company holds IATF16949 and SGS certifications for product quality. It also has ISO9001:2015 and ISO14001 management system certifications.

How is product quality controlled?

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

What is the annual production capacity?

The annual production is more than 800 million pieces.

Custom High Precision Torsion Spring

Name: Custom High Precision Torsion Spring
Brand: Yangzhou Mingfeng Spring Co., Ltd.
SKU: 776775435

Jiangsu, ChinaYangzhou Mingfeng Spring Co., Ltd.

US$0.05

10,000 Pieces

Product profile

Customization

Available

Function

Measurement

Material

Stainless Steel

Model NO.

MF176

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

IATF16949 & SGS Certified: Quality standard certified by IATF16949 and SGS for industrial and automotive use.

Customizable Dimensions: Wire diameter, free height, and outer diameter can be customized as per your request.

Multiple Surface Finishes: Available in white zinc, color zinc, nickel plating, chrome-plating, and plastic spraying.

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

High Precision CNC Machines: Equipped with over 50 sets of advanced CNC coil spring machines imported from Taiwan.

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

Free Samples Available: Free samples are provided according to company rules to ensure product quality.

Fast Response to Complaints: Customer complaints are responded to within 24 working hours with a satisfied solution.

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 warranty period?

The provided text does not specify a warranty period. However, it mentions a 24-hour response time for client complaints and a 6-step quality control process.

Q:What materials are used for the torsion spring?

The torsion springs are made from stainless steel, alloy, spring steel, and carbon steel. Materials are purchased from iron and steel group companies in Jiangsu and Zhejiang.

Q:Can the spring dimensions be customized?

Yes, the wire diameter, free height, and outer diameter can be customized according to your request. The shape is coil, and it supports full customization.

Q:What surface treatments are available?

Standard surface color is silver (Trivalent Zinc Plating). Other options include black, yellow, red, green, and blue via powder spraying or paint spraying. Other finishes include white zinc, nickel plating, and chrome-plating.

Q:What is the delivery time?

Normally, the delivery time is 45 days, excluding holidays and special bulk orders. Peak and off-season lead times are within 15 workdays.