

The Sitrak Disconnected Balanced Suspension is a specialized heavy-duty system engineered to optimize load distribution and articulation for multi-axle trucks. As a core component within the Sinotruk Sitrak parts family, this advanced suspension enhances off-road capability and on-road stability. Designed for challenging terrains, the Sitrak Disconnected Balanced Suspension allows individual axle movement, reducing frame stress and improving traction. Its robust construction ensures durability under extreme loads, making it ideal for construction, mining, and heavy transport applications where reliability and performance are critical.
The Sitrak Disconnected Balanced Suspension is an innovative mechanical system that enables independent movement of axles while maintaining load balance. It features a central balance beam with pivot points, allowing disconnected axles to articulate separately over rough ground. This design minimizes chassis twisting and distributes weight evenly across all wheels. Primarily used in off-highway and severe-duty trucks, it enhances vehicle stability and prevents axle hopping, ensuring consistent ground contact and improved traction.
Key components include a balance beam assembly, cast torque rods, V-type thrust rods, and reinforced leaf springs. These parts work synergistically to absorb shocks and manage dynamic forces. The suspension incorporates rubber bushings and limit blocks to control movement and reduce noise. Its modular construction simplifies maintenance and part replacement. The Sitrak Disconnected Balanced Suspension is engineered to handle high payloads while providing a smoother ride and protecting cargo from vibration damage.
This suspension system excels in uneven terrain applications such as mining sites, construction zones, and forestry roads. By allowing axles to disconnect and articulate, it improves wheel contact and reduces tire wear. The balanced design also enhances braking efficiency and steering response. The Sitrak Disconnected Balanced Suspension is compatible with various Sinotruk Sitrak models, offering versatility for fleet operators who require adaptable and durable solutions for mixed operating conditions.
Safety and durability are paramount in the design of the Sitrak Disconnected Balanced Suspension. High-strength bolts, nuts, and precision components ensure secure connections under stress. The system undergoes rigorous testing to meet international standards for load capacity and fatigue resistance. Regular maintenance is straightforward, with accessible lubrication points and replaceable wear parts. This suspension significantly extends vehicle service life and reduces total cost of ownership by minimizing downtime and repair frequency.
| No. | Part Number | Part Name English | Quantity |
|---|---|---|---|
| 1 | AZ9725520210 | Balance beam with axle housing assembly | 2 |
| 2 | AZ9631523175 | Cast torque rod assembly | 4 |
| 3 | WG9725521282 | Few-leaf rear leaf spring assembly | 2 |
| 4 | AZ9725529272 | V-type thrust rod assembly | 2 |
| 5 | WG9725520266 | Clamp plate | 4 |
| 6 | ZQ361B22T13F6 | Type 2 hex nut M22*1.5 | 16 |
| 7 | AZ9725520273 | Rubber support assembly | 4 |
| 8 | ZQ151B22250TF6 | Hex head bolt M22*1.5 | 16 |
| 9 | WG9725520590 | Front left bracket for thrust rod | 4 |
| 10 | Q33212 | Type 2 all-metal hex lock nut | 16 |
| 11 | Q218B1285 | Hex socket head cap screw | 16 |
| 12 | WG9725520267 | Sleeve | 16 |
| 13 | WG9725520265 | Fixation strip | 8 |
| 14 | ZQ151B20100TF6 | Hex head bolt M20*1.5 | 8 |
| 15 | 190003901905 | Cylindrical pin – Pin GB119 A20*24 | 4 |
| 16 | ZQ361B20T13F6 | Type 2 hex nut M20*1.5 | 12 |
| 17 | ZQ151B20180TF6 | Hex head bolt M20*1.5 | 4 |
| 18 | ZQ1811670TF6 | Hex flange serrated bolt M16*1.5 | 2 |
| 19 | WG9725520736 | Limit bracket | 4 |
| 20 | WG9725520727 | Limit block assembly | 4 |
| 21 | ZQ151B1470 | Hex head bolt M14*1.5 | 12 |
| 22 | ZQ151B1460 | Hex head bolt M14*1.5 | 4 |
| 23 | ZQ340B10 | Type 1 hex nut M10*1.5 | 16 |
| 24 | ZQ361B14 | Type 2 hex nut M14*1.5 | 16 |
| 25 | WG9725520256 | Leaf spring pressure plate | 2 |
| 26 | ZQ32724T13F3 | Flange nut M24*3 | 8 |
| 27 | AZ9725521265 | Rear spring U-bolt | 4 |
| 28 | ZQ1811660TF6 | Hex flange serrated bolt M16*1.5 | 28 |
| 29 | ZQ1811690TF6 | Hex flange serrated bolt M16*1.5 | 8 |
| 30 | Q40120 | Flat washer | 4 |
| 31 | ZQ151B20120 | Hex head bolt M20*1.5 | 4 |
| 32 | ZQ32516T13F6 | Hex flange serrated nut M16*1.5 | 38 |
| 33 | ZQ32516T13F6 | Hex flange serrated nut M16*1.5 | 16 |
| 34 | ZQ1811680TF6 | Hex flange serrated bolt M16*1.5 | 16 |
| 35 | WG9725520114 | V-type thrust rod bolt | 8 |
| 36 | WG9725520367 | Anti-loosening sleeve | 8 |
| 37 | ZQ32318T13F6 | Hex flange nut M18*1.5 | 8 |
| 38 | WG9725520231 | Double-ended stud | 8 |
Our Sitrak Disconnected Balanced Suspension provides exceptional articulation, allowing each axle to move independently over obstacles. This ensures maximum wheel contact and traction on uneven surfaces, reducing the risk of getting stuck. The balanced beam design minimizes frame twist and maintains vehicle stability, enabling safe and efficient operation in mining, construction, and forestry environments where conventional suspensions may fail.
The suspension evenly distributes weight across all axles, preventing overloading on any single point. This reduces stress on components like springs, axles, and tires, extending their service life. Improved load sharing also enhances braking performance and steering control, contributing to overall safety. The Sitrak Disconnected Balanced Suspension is ideal for heavy haulage, ensuring compliance with weight regulations while maximizing payload capacity.
Manufactured from high-strength materials and precision-engineered components, our suspension withstands extreme conditions. Features like cast torque rods, reinforced brackets, and anti-corrosion coatings ensure long-term reliability. Each part undergoes strict quality control, meeting Sinotruk’s rigorous standards. The durable design reduces maintenance frequency and downtime, offering a cost-effective solution for demanding applications.
By effectively absorbing shocks and vibrations, the suspension provides a smoother ride for drivers and protects cargo from damage. The integrated limit blocks and rubber bushings control excessive movement, enhancing stability at high speeds or during sharp turns. This leads to reduced driver fatigue and lower accident risks. The Sitrak Disconnected Balanced Suspension also contributes to better fuel efficiency by optimizing vehicle dynamics and reducing rolling resistance.
The Sitrak Disconnected Balanced Suspension is widely used in industries requiring heavy-duty mobility and reliability. In mining operations, it facilitates transport of ores and materials over rugged terrain. For construction projects, it supports heavy machinery and equipment carriers. The suspension is also employed in logging, oil field services, and specialized freight transport. Its ability to articulate independently makes it suitable for trailers and multi-axle trucks operating in challenging environments.
Investing in this suspension system yields significant long-term benefits. Operators experience reduced tire wear, lower maintenance costs, and increased vehicle uptime. The enhanced durability minimizes unexpected failures, ensuring consistent performance. Furthermore, the suspension’s design allows for easier servicing, with readily available spare parts. By choosing the Sitrak Disconnected Balanced Suspension, fleet managers can improve operational efficiency, safety, and profitability across diverse applications.
This product catalog provides detailed information on the Sitrak Disconnected Balanced Suspension. Specifications are subject to change based on technical updates. For the latest details, consult official Sinotruk Sitrak resources or authorized distributors.
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