What is the warranty period for the suspension?

The standard warranty covers the full suspension for 1 year. An extended warranty of 2 years is available at an extra cost.

What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 piece, allowing for flexible purchasing options for various business sizes.

What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments to accommodate different customer preferences.

American Type Trailer Suspension for Semi Trailer American Type Mechanical Suspension System

Name: American Type Trailer Suspension for Semi Trailer American Type Mechanical Suspension System
Brand: Shandong Weierqi Vehicle Parts Co.,Ltd
SKU: 2287682545

Shandong, ChinaShandong Weierqi Vehicle Parts Co.,Ltd

US$200.00-500.00

100 Pieces

Product profile

Customization

Available

Loading Weight

5000lbs

Material

Steel

Model NO.

Mechanical Suspension

Number of Axles

Tandem Axle Suspension

Type

Air Suspension

Purpose

for Replace/Repair

Application

Trailer Truck Used

No Load Dimension

381mm-440mm

Tent Type

Simple

Height of Towing Plate

1180mm/1210mm/1230mm/1250mm

Transport Package

Wooden Box

Specification

Air Bag

Trademark

WEQ

Origin

China

Production Capacity

200sets/Month

Key features

High-Strength Steel Construction: Hangers made of Q345 high-strength steel; springs use premium alloy steel with heat treatment.

Customizable Spring Configuration: Spring quantity adjustable from 6-16 pieces based on specific load requirements.

Versatile Axle Options: Available in 2, 3, or 4 axle configurations with load capacities up to 48T.

Global Quality Certification: Certified to ISO/TS 16949 standards with optional SGS and TUV certifications.

Flexible Customization Services: Supports OEM/ODM, logo branding, and full customization from samples or designs.

Durable Performance: Engineered for heavy-duty transport with reliable operation in diverse road conditions.

Wide Application Scope: Suitable for flatbed, container, low-bed, and fence semi-trailers in various markets.

Competitive Lead Time: Off-season lead time within 15 workdays; peak season 1-3 months.

Company profile

Importers and ExportersPatents AwardedQuality AssuranceProduct Certification

Shandong Weierqi Vehicle Parts Co.,Ltd

Shandong, 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: Qingdao PortAverage Response Time: ≤3.16h

AI-Powered supplier vetting

SummaryWelch is a professional towing-device and trailer-accessory supplier with casting, machining, manufacturing, sales, and export capabilities. It offers a broad product range, including traction devices, pintle hooks, turntables, king pins, fifth wheels, landing gear, trailer couplings, and drawbar eyes. The supplier reports ISO9001:2015 certification, documented warehouse and finished-product inspection procedures, three quality-control staff, two test-equipment units, and two R&D engineers. It provides 3D software design and multiple forms of customization, supported by CNC, drilling, boring, induction-heating, milling, painting, and shot-blasting facilities. R&D engineers provide technical support during production and after-sales service. The supplier reports domestic mainstream OEM and upfitter supply and exports to several regions, but no Fortune 500 cooperation. Financial information is present only as year labels, so financial credibility cannot be assessed.

Supplier typeThe supplier identifies itself as a professional technical supplier and conducts casting, manufacturing, sales, and export of towing devices and trailer accessories. Its listed product portfolio covers major towing-system components, indicating a specialized manufacturer rather than a general trading supplier.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate. However, product compliance certification is recorded only as “Others,” without naming a specific product standard or certificate.

After-Sales capabilityThe two technology engineers are responsible for technical support during production and after-sales service, and the supplier provides technical support tied to customer requirements. This explicitly supports after-sales technical assistance, although the breadth and response performance of the service are not stated.

R&D capabilityWelch reports multiple utility model patents, national automotive standard-drafting membership, two R&D engineers, and new-product-development responsibilities. It also provides 3D software design services, but reports no available SDK; the evidence still supports product-development and technical innovation capability.

Production capacityThe supplier operates or reports access to casting and a range of production facilities, including CNC lathes, machining centers, vertical lathes, drilling, boring, induction heating, gantry milling, painting, and shot blasting. Written warehouse and finished-product inspection procedures are reportedly followed, with three quality-control staff and two test-equipment units.

Customization capabilityWelch explicitly supports OEM/ODM customization and machining according to drawings. It offers customization from samples, designs, full customization, minor customization, and flexible customization, together with 3D software design services.

Client casesThe supplier states that its products supply mainstream domestic OEMs and upfitters and are exported to Africa, Southeast Asia, South America, the Middle East, and other global markets. It reports no cooperation with Fortune 500 companies, so the customer evidence demonstrates market reach but not top-tier multinational customer reference strength.

Product Q&A

Q:What are the available axle configurations?

We offer 2, 3, or 4 axle configurations. Load capacity ranges from 13T to 20T per single axle, with a maximum total load of up to 48T for heavy-duty configurations.

Q:Can the spring quantity be customized?

Yes, the spring quantity is customizable based on load requirements. Standard options range from 8-12 pieces, with customizable options from 6-16 pieces.

Q:What materials are used for the suspension components?

Hangers are fabricated from Q345 high-strength steel, and springs are made of premium alloy steel with heat treatment for maximum toughness. Custom alloy steel is available for extreme loads.

Q:Is OEM and ODM service available?

Yes, we provide comprehensive OEM and ODM services, including customization from samples, designs, and minor adjustments to meet specific client needs.

Q:What certifications does the product have?

The product is certified to ISO/TS 16949 for global quality standards. Optional SGS and TUV certifications are also available upon request.