Rugged & Durable
Built with high-strength steel and branded components to withstand tough road conditions




Typically, Kales 66 series American type Leaf Spring Suspension has a single axle capacity of 10 tons. The number of semi-trailer axles is available in 1, 2 or 3 axle configurations. Optional conventional leaf spring sizes include 77×13-9L and 77×13-10L, while parabolic leaf springs are 77×22-3L. The suspension’s equalizer bushings and torque arm bushings are tapered rubber bushings.
In the modern transportation industry, the suspension system acts as a crucial link between the chassis and the vehicle frame. It not only supports the vehicle’s weight, braking force, and driving force but also plays an essential role in mitigating road impacts and ensuring smooth travel. For semi-trailers that require substantial load-bearing capabilities, selecting an outstanding non-independent suspension system is particularly critical.
Typically, Kales 66 series American type Leaf Spring Suspension has a single axle capacity of 10 tons. The number of semi-trailer axles is available in 1, 2 or 3 axle configurations. Optional conventional leaf spring sizes include 77×13-9L and 77×13-10L, while parabolic leaf springs are 77×22-3L. The suspension’s equalizer bushings and torque arm bushings are tapered rubber bushings.
Tailored for semi-trailers, Kales 66 series American type Leaf Spring Suspension integrates the reliability of traditional leaf spring suspensions with the advancements of innovative technology. With its superior performance and dependability, it stands out as the ideal choice for your semi-trailer suspension needs. Compared to other types of suspensions such as rigid axles, single-point suspensions, and air suspensions, Kales offers distinct advantages:
The Kales steel leaf spring suspension uses high-quality silicon-manganese spring steel, which offers greater strength, elasticity, and hardenability. This means we can provide a lighter weight while maintaining load capacity, leading to increased stability when carrying heavy loads and reduced fuel consumption for maximum economic efficiency.
Our suspension system features a simple structure that is easy to install and maintain. Whether at a busy logistics center or along distant transport routes, Kales steel leaf spring suspensions allow for quick replacement and maintenance, minimizing downtime and enhancing operational efficiency.
Through high-strength heat treatment, Kales steel leaf spring suspensions maintain high strength while increasing product toughness. This results in significant strengthening, allowing our suspension systems to perform excellently even under harsh road conditions, providing long-term reliability.
Kales steel leaf spring suspensions are coated with outdoor rust-resistant paint, effectively isolating moisture, preventing oxidation, and protecting against corrosion, thus extending service life. Regardless of whether you’re operating in humid coastal areas or dusty desert regions, Kales ensures the durability of your suspension system.
In the commercial vehicle sector, “lightweight” has become a buzzword. By optimizing design and reducing the number of spring leaves without compromising load capacity, Kales achieves a perfect balance between lightweight construction and load-bearing capability. This not only decreases the vehicle’s own weight but also improves fuel efficiency, offering a competitive edge for your transportation business.
Choosing Kales steel leaf spring suspension means opting for a powerful, reliable, and economical partner. Together, let’s safeguard your transportation endeavors. Upgrade your semi-trailer suspension system now and experience the superior performance and economic benefits brought by Kales.
WD66.22 American type Leaf Spring Suspension Tandem (2-axle) Underslung Trailer Suspension
Note:
(1) Demension “A1, A2, A3”: unladen
(2) Suitable for round/square axles
(3) Suggested leaf spring: 75×22×3 pcs








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Yes, absolutely. As a manufacturer, we have a professional engineering team. We can customize the dimensions, loading capacity (e.g., 60 tons, 80 tons), axle brand (FUWA/BPW), suspension type, and paint color to suit your specific road conditions and transport needs.
We use high-strength Q355 or T700 steel for the main beam. This ensures the trailer is lightweight yet strong enough to withstand heavy loads and rough road conditions in Africa and Central Asia.
Standard models usually take 15-20 working days after receiving the deposit. For urgent orders, we can even shorten it to 10 days. We will keep you updated with photos and videos during production.
Our standard term is T/T (30% deposit, 70% balance before shipping). For large orders, L/C (Letter of Credit) is also negotiable.
Yes, we provide a 24-month warranty for the main beam. For spare parts (like brake pads, lights), we supply original parts at factory cost for the lifetime of the trailer.
At Kales Vehicle, we understand that shipping costs are a major part of your investment. That’s why we offer multiple transport options tailored to your destination and budget.
Whether you choose Container Shipping for protection, Ro-Ro (Roll-on/Roll-off) for speed, or Bulk Cargo for cost savings, we ensure every trailer is handled with care. All vehicles undergo rigorous wax spraying and are covered with waterproof tarpaulins before shipment to prevent seawater corrosion during transit. We calculate the optimal stacking method (e.g., 3 units stacked together) to help you minimize freight costs.






