What's the difference between 'one leaf' and 'one set'?

One leaf refers to a single steel plate, while one set is a complete assembly for left and right sides of an axle, typically including multiple leaves, center bolt, and clamps.

What is the warranty period for leaf springs?

Under normal use, warranty typically ranges from 6 to 12 months (subject to manufacturer's policy). Overloading, impacts, or improper installation are not covered.

When should leaf springs be replaced?

Replace if there are cracks or breakage in leaves, noticeable loss of elasticity causing sagging, severe vibration/noise, or excessive wear between leaves.

Progressive Rate Leaf Spring with Variable Stiffness for Improved Ride Comfort Under Load

Name: Progressive Rate Leaf Spring with Variable Stiffness for Improved Ride Comfort Under Load
Brand: Hebei Chenggang Metal Products Co., Ltd.
SKU: 2150732572

Hebei, ChinaHebei Chenggang Metal Products Co., Ltd.

US$25.00

100 Pieces

Product profile

Customization

Available

After-sales Service

48h Online Help

Warranty

1 Year

Model NO.

Leaf Spring

Position

Rear-Left

OEM

Condition

None

Spring Material

Steel

Product Name

Lowering Springs

Selling Units

Single Item

Single Gross Weight

10.000kg

Purpose

Automotive Hardware

Specification

Custom

Origin

China

Key features

Heavy-Duty Steel Construction: Made from high-strength steel with black powder-coated finish for durability and corrosion resistance.

Customizable Design: Products can be customized according to customer requirements to match original specifications.

ISO9001 Certified Quality: Company passed ISO9001:2008 quality management system certification ensuring standardized production.

Fast Delivery Options: Popular items are in stock and can be shipped on the same day for urgent needs.

Global Export Experience: Products sold to over 100 countries including Russia, UK, and more with established logistics.

Comprehensive Warranty: 1-year warranty coverage for normal use, with unconditional return for quality problems.

Advanced Manufacturing Process: Includes cutting, drilling, quenching, tempering, and shot peening for superior strength.

OEM/ODM Support: Full OEM and ODM services available to meet specific automotive hardware needs.

Company profile

Hebei Chenggang Metal Products Co., Ltd.

Hebei, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2020-01-01Nearest Port: Tianjin, Qingdao, YiwuAverage Response Time: ≤1.34hTerms of Payment: T/T, PayPal, LC, etc.

AI-Powered supplier vetting

SummaryHebei Chenggang Metal Products Co., Ltd., founded in 1995, manufactures automobile and motorcycle leaf springs and operates one production line with stated annual capacity of 10,000 tons. It reports ISO9001:2008 certification and sales to more than 100 countries and regions, while export activity began two years ago and 41%–50% of sales are exports. The supplier supports extensive customization, ODM services, and reported new products during the past year. Quality inspection instructions are reportedly implemented uniformly, with two quality inspectors. However, service-management procedures, corrective actions, and complaint handling lack written records. The supplier has no overseas warehouses, showrooms, agents or branches, and has not participated in offline trade shows. Evidence of customer cases is limited to a general claim of international sales.

Supplier typeThe supplier is a manufacturer of automobile and motorcycle leaf springs, covering heavy, medium, light, micro and other vehicle types. Its stated manufacturing focus and product scope identify it as a specialized automotive component manufacturer rather than a general trading company.

CertificationsThe company states that it has passed ISO9001:2008 quality management system certification. This is explicit certification evidence, although no additional certifications or current certificate validity details are provided.

After-Sales capabilityThe supplier has written procedures for service assessment, corrective and preventive actions, and customer complaints, but reports no records for these processes. It also has no overseas warehouses, showrooms, agents or branches, and offers no overseas service coverage in the stated field, limiting demonstrated after-sales infrastructure.

R&D capabilityThe supplier reports two years of total R&D engineer experience, new products during the past year, and ODM service availability. These points support active product-development capability, although the limited stated R&D experience prevents judging the depth of its innovation resources.

Production capacityThe supplier operates one production line incorporating punching, cutting and product-forming equipment and reports annual leaf-spring productivity of 10,000 tons. Two quality inspectors and uniformly followed finished-product inspection instructions are also reported, providing explicit evidence of operating production and quality-control capacity.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization and flexible customization, and states that its leaf springs can be customized according to customer requirements. This is direct and consistent evidence of broad customization capability.

Client casesThe supplier states that its products have been sold to more than 100 countries and regions and that exports represent 41%–50% of total sales, with exporting beginning two years ago. However, no named customers, project examples or independently detailed case studies are provided.

Product Q&A

Q:What is a leaf spring?

A leaf spring is an elastic component made of single or multiple alloy steel plates stacked together, mainly used in suspension systems of trailers, trucks, and construction machinery to support loads and absorb shocks.

Q:What types of leaf springs are available?

Available types include Multi-leaf spring (high load capacity), Tapered leaf spring (lightweight, better comfort), Single-leaf spring (simple structure), and Graduated stiffness leaf spring (soft under light load, firm under heavy load).

Q:What vehicles typically use leaf springs?

Leaf springs are commonly used in trailers, trucks, cargo three-wheeled motorcycles, agricultural vehicles, construction machinery, off-road vehicles, caravans, RVs, and special purpose vehicles.

Q:How do I know which leaf spring fits my vehicle?

Consider three key factors: Vehicle model/axle type, Rated load capacity, and Original spring specifications (number of leaves, length, width, arch). Providing these details ensures accurate matching.

Q:What materials are leaf springs made from?

Common materials include 65Mn (most common, high cost-performance) and 60Si2Mn (high quality, better durability).