What is the Minimum Order Quantity (MOQ)?

The Minimum Order Quantity is 1 PCS.

What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.

What quality control measures are in place?

We perform 100% inspection (Visual & Function) on finished products, and all raw materials are traceable.

Semi Trailer Parts Tandem Axle Trailer Suspension Air Suspension

Name: Semi Trailer Parts Tandem Axle Trailer Suspension Air Suspension
Brand: Shandong Weierqi Vehicle Parts Co.,Ltd
SKU: 2278829555

Shandong, ChinaShandong Weierqi Vehicle Parts Co.,Ltd

US$300.00-600.00

100 Pieces

Product profile

Customization

Available

Loading Weight

5000lbs

Material

Steel

Model NO.

Air Suspension

Number of Axles

Triple Axle Suspension

Type

Air Suspension

Purpose

for Replace/Repair

Application

Trailer Truck Used

Axle Beam

Square 150*150mm/Round 127*127mm

Square 150150mm/Round 127127mm

36ton

Type1

American Type;German Type

Transport Package

Wooden Box

Specification

Air Bag

Trademark

WEQ

Origin

China

Production Capacity

200sets/Month

Key features

Superior Ride Quality: Air-filled bags provide better load distribution and stability than traditional leaf springs.

High-Strength Steel Frame: Q345B/16Mn steel with robot welding and powder coating for excellent corrosion resistance.

Durable Air Springs: Imported rubber/nylon composite, multi-layer reinforced, pressure-resistant up to 12 bar.

Adjustable Ride Height: Features adjustable ride height for optimized performance across different load conditions.

Heavy-Duty Shock Absorbers: Hydraulic oil-filled shock absorbers offer high-temperature resistance and strong shock absorption.

Wide Application Scope: Compatible with flatbed, container, tanker, and special transport semi-trailers globally.

Customizable Options: Supports customization from samples, designs, and flexible minor adjustments.

Long Service Life: Precision-manufactured with high-quality materials ensuring stable operation and durability.

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: ≤9.11h

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 types of semi-trailers is this air suspension compatible with?

It is widely used in all types of semi-trailers, including flatbed, container, van, tipper, lowbed, tanker, and special transport semi-trailers.

Q:What materials are used for the frame and air springs?

The frame uses high-strength low-alloy steel (Q345B/16Mn) with robot welding. Air springs are made of imported high-strength rubber and nylon composite material.

Q:What is the load capacity of this suspension system?

Load capacity varies by model: German Type ranges from 10T to 16T, and American Type ranges from 11T to 15T.

Q:Does the product support customization?

Yes, we offer customization from samples, designs, full customization, minor customization, and flexible customization options.

Q:What are the lead times for orders?

Peak season lead time is 1-3 months, while off-season lead time is within 15 workdays.