Can we place a trial order smaller than the MOQ?

Yes, sample tests and sample orders are accepted if we have ready parts in stock.

What is the delivery time for orders?

The delivery time is within 30 days.

What materials are used for the coil springs?

We use 60si2MnA material, or materials according to customer's requirements.

Vehicle Adjustable Stiffness Progressive Stiffness Adapts to Complex Loads Coil Spring

Name: Vehicle Adjustable Stiffness Progressive Stiffness Adapts to Complex Loads Coil Spring
Brand: Qingdao Everlasting Auto Parts Co., Ltd.
SKU: 2100789192

Shandong, ChinaQingdao Everlasting Auto Parts Co., Ltd.

US$1.20-10.50

50 Pieces

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

24 Hours

Warranty

12 Months

Material

Stainless Steel

Certification

ISO/TS16949, ISO9001

Suitable for Car Brands

Volkswagen, WuLing, Benz, BMW, Hyundai, Honda, Toyota, Jeep, Nissan, Ford, Buick, Chery, Chevrolet, Cadillac, Geely, Roewe, Audi, Peugeot, Lexus, Volvo, Mazda, Kia

Position

Front or Rear

OEM

Yes

Type

Shock Absorber

Wire Scope

0.1-100mm

Load Type

Compression

Product Name

Shock Absorber Coil Spring

Color

Black/Red/Yellow/Green/Grey or Customized

MOQ

Transport Package

Packed by Cartons, Pallets and Wood Case

Specification

Customized

Trademark

Everlasting or Customized

Origin

China

HS Code

7320209000

Production Capacity

10000000 Pieces/Year

Key features

Customizable Color Options: Available in Black, Red, Yellow, Green, Grey, or customized colors.

Wide Wire Diameter Range: Supports wire diameters from 0.1mm to 100mm for diverse applications.

OEM and Custom Design: Accepts OEM orders and custom designs based on customer samples or drawings.

Certified Quality Assurance: ISO9001 and TS16949 certified with strict quality inspection records.

Fast Delivery Capability: Delivery within 30 days with an annual supply ability of 10,000,000 pieces.

Flexible MOQ Policy: MOQ is 50pcs for common sizes; sample orders accepted if parts are in stock.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceExhibition Experience

Qingdao Everlasting Auto Parts Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2018-04-08Average Response Time: ≤7.47h

AI-Powered supplier vetting

SummaryThe supplier demonstrates leaf spring manufacturing and broad customization capability, including OEM for well-known brands and ODM services. It reports export experience of seven years and an export sales share of 71%–90%, with stated peak- and off-season lead times of one month. However, it has no in-stock service, overseas warehouse, overseas showroom, overseas agents or branches, and serves zero overseas countries according to the provided data. R&D resources are limited to one engineer, CAD software, no patents, and no new products in the past year, although design documentation is available for audit. Certification, after-sales service, and supplier type are not sufficiently documented. Financial records are referenced for 2022–2024, but financial figures cannot be assessed here.

Supplier typeThe supplier manufactures leaf springs and describes production equipment specifically for leaf spring processing. Its export activity has continued for seven years, with exports representing 71%–90% of total sales, indicating a manufacturing-oriented supplier with substantial international business exposure.

After-Sales capabilityThe supplier explicitly has no in-stock service capacity, overseas warehouse, overseas showroom, overseas agents, or branches, and reports services in zero overseas countries. It has participated in an offline trade show and lists one-month lead times, but these facts do not establish after-sales service capability.

R&D capabilityThe supplier offers ODM and multiple customization types, and it maintains design input, output, review, verification, and validation documentation. Nevertheless, it had no new products in the past year, has one R&D engineer, no patents, no SDK, and only CAD is identified as an R&D software tool, indicating limited demonstrated innovation depth.

Production capacityThe supplier identifies leaf spring production equipment, including automatic spring-eye rolling, variable-cross-section rolling, heat treatment, stress shot blasting, and electrophoresis lines. It reports one-month lead times in both peak and off-season periods, but annual output quantities are not stated and no valid manufacturing-capacity contract is confirmed.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization, and also provides ODM services. Its stated ability to manufacture leaf springs for Benz, Volvo, Scania, MAN, Hyundai, and Daewoo further supports experience with specified product requirements.

Client casesThe supplier reports participation in the Riyadh Auto Parts Exhibition and OEM service for well-known brands. It also states that it manufactures leaf springs for Benz, Volvo, Scania, MAN, Hyundai, and Daewoo, but the slices do not provide customer names, order records, project details, or independently verified case evidence.

Product Q&A

Q:Can you design and produce products based on our requirements?

Yes, we have rich experience and strong technical support to design and produce products based on your samples or drawings.

Q:How do you guarantee the quality of the coil springs?

We take quality inspection records from raw materials to finished products, and the former department bears 100% responsibility for the next process.

Q:What is the process for purchasing orders from you?

1. Send specific demands (OEM numbers, photos, models). 2. Confirm quotation with details. 3. Negotiate details (packing, delivery, warranty). 4. Sign contract for payment and production.

Q:What are your terms of payment?

T/T 30% as deposit, and 70% before delivery. We also accept Western Union. Photos and videos of products will be provided before balance payment.

Q:What is the Minimum Order Quantity (MOQ)?

For common material sizes, the MOQ is 50pcs. For special material sizes, the MOQ is 3 tons or more.