American type mechanical suspension
American type mechanical suspension(three-axle)
Model Number:With ten 13*75 steel plate spring
American type three axle mechanical suspension is a heavy-duty trailer suspension system designed to support high load capacity and improve stability through a tridem axle configuration. This system uses leaf springs, equalizers, and hangers to distribute weight evenly across three axles, ensuring reliable performance under demanding transport conditions.
The three axle configuration significantly increases load capacity and enhances driving stability, making it ideal for heavy-duty trailers operating on highways and rough roads. The leaf spring suspension effectively absorbs shocks and reduces vibration, protecting both the trailer structure and transported cargo.
Jiuzhou Machinery provides durable American type three axle mechanical suspension systems with customizable specifications to meet various heavy transport requirements.
Applications:
• Heavy-duty semi trailers
• Mining and construction transport
• Bulk cargo transportation
• Long-distance logistics

1.Proven Mechanical Leaf Spring System
This suspension utilizes a traditional leaf spring design, offering robust support and shock absorption ideal for heavy-duty trailer applications.
2.High-Quality Steel Springs
Manufactured from premium steel, the springs provide excellent load-bearing capability and resilience against wear and fatigue.
3.Precision Engineering
All components are engineered with tight tolerances to ensure smooth operation, reduced vibration, and extended service life.
4.Wide Compatibility
Designed to fit a broad range of American-style trailer axles and chassis, making installation and maintenance straightforward.
Product Overview
The American type three axle mechanical suspension is a tridem suspension system designed for heavy-duty semi trailers. By distributing load across three axles, it provides enhanced stability, improved load capacity, and reliable performance in demanding transport conditions.

| Suspension Model | A1(mm) | A1*(mm) | A2(mm) | A2*(mm) | A3(mm) | A3*(mm) | Carrying Capacity |
| JZM1.20C10 | 440 | 400 | 440 | 400 | 440 | 400 | 11000*3 |
| JZM1.20D10 | 440 | 400 | 427 | 387 | 415 | 375 | 11000*3 |
| JZM1.20E10 | 440 | 400 | 415 | 375 | 390 | 350 | 11000*3 |
| JZM1.19C10 | 427 | 387 | 415 | 375 | 402 | 362 | 11000*3 |
| JZM1.21B10 | 416 | 375 | 415 | 375 | 415 | 375 | 11000*3 |
| JZM1.18B10 | 415 | 375 | 402 | 362 | 390 | 350 | 11000*3 |
| JZM1.22A10 | 390 | 350 | 390 | 350 | 390 | 350 | 11000*3 |
Key Features
• Tridem axle configuration for maximum load distribution
• Higher load capacity than tandem suspension
• Enhanced stability under heavy loads
• Durable leaf spring and equalizer system
Three Axle vs Two Axle Suspension
Feature Three Axle (Tridem) Two Axle (Tandem)
Load Capacity Higher Standard
Stability Better Good
Application Heavy-duty General transport





















