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We pride ourselves on producing quality products, but in the unlikely event that you are unsatisfied with your purchase, we offer a hassle-free return policy. Contact our customer service team and we will work to quickly resolve any issues and make things right.

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We encourage our customers to stay connected with us through our website, social media channels, and email newsletters. We regularly announce new products, promotions, and other exciting news and updates that we think you'll want to know about. At our company, we are committed to providing high-quality products and exceptional customer service. We believe in fostering long-term relationships with our customers and are always striving to improve and grow our business. Thank you for considering us

American Heavy Duty Conventional Multi Leaf Spring for Truck Semi Trailer

Name: American Heavy Duty Conventional Multi Leaf Spring for Truck Semi Trailer
Brand: Shandong Weierqi Vehicle Parts Co.,Ltd
SKU: 2296436015

Shandong, ChinaShandong Weierqi Vehicle Parts Co.,Ltd

US$100.00

50-199 Pieces

US$20.00

200+ Pieces

Product profile

Customization

Available

After-sales Service

Provided

Warranty

12month

Model NO.

Leaf Spring

Material

60si2mn

Certification

ISO9001

Position

Front

OEM

Type

Leaf Spring

Size

Customized

Total Layers

7/8/9/10/12/14/16PCS

Width

90mm/100mm/120mm(or Customization)

Length

1130mm/1200mm(The Length of Each Piece Can Be Cust

Transport Package

Pallet

Specification

As Your Request

Trademark

WEQ

Origin

China

Production Capacity

500 Sets/Month

Key features

Exceptional Fatigue Life: Exceeds 120,000 cycles, surpassing the industry standard of 100,000 cycles.

High Load Capacity: Supports loads from 5,000kg to 50,000kg per spring assembly.

Premium Alloy Steel Material: Constructed from 60Si2Mn, 55CrMnA, or SUP6-SUP12 series for durability.

Customizable Dimensions: Available in 7 to 16 layers with customizable width and length options.

Advanced Heat Treatment: Quenching and tempering process ensures optimal hardness between 41-48 HRC.

Corrosion Resistance: Surface treated with electrostatic painting, powder coating, or galvanization.

Comprehensive Quality Certification: Certified under ISO/TS16949, IATF 16949, and GB/T 19844-2018 standards.

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: ≤0.83h

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 products does your company manufacture?

Our company specializes in the manufacturing of high-quality consumer goods. Specifically, we produce a wide range of products such as trailer coupling trailer jacks king pin and so on

Q:How do you ensure the quality of your products?

We take quality control very seriously and have a team of experts who oversee all aspects of production. From the selection of raw materials to the final stages of assembly, we constantly monitor and test our products to ensure that they meet our rigorous standards.

Q:What sets your products apart from others in the market?

Our products are designed with the customer in mind. We take great care to create products that not only look good but also provide practical benefits. Through continuous innovation and research, we strive to offer unique features and superior performance that sets us apart from our competitors.

Q:How can I place an order for your products?

Ordering our products is simple. You can either browse our website or contact us directly to place an order. We offer various payment options and can also assist with shipping and delivery to ensure that your order is received in a timely manner.

Q:Can you accommodate bulk orders?

Absolutely! We have the capacity to fulfill large orders and can even work with you to provide customized products tailored to your specific needs.