Core Characteristics
Reinforced Trailing Arms & Heavy-Duty Hangers:
Fabricated from high-tensile steel with reinforced gussets at stress points to withstand the impact of empty travel on rough haul roads.
High-Capacity, Multi-Ply Air Springs:
Specifically sized for high-pressure operation to handle maximum legal payloads while providing the necessary travel for axle articulation.
Integrated Progressive Damping:
Utilizes large-bore, long-stroke shock absorbers tuned to control rapid axle rebound after hitting bumps or potholes, preventing violent chassis oscillation.
Robust, Sealed Pivot System:
Features oversized, greasable pins with heavy-duty flanged bushings and protective seals to resist contamination from mud, dust, and aggregate debris.
Technical Parameters
|
Parameter Item |
Specification |
Unit |
|
Single Axle Rated Load |
15-45 |
T |
|
Airbag Working Pressure |
0.7-1.4 |
MPa |
|
Pressure Adjustment Response Time |
≤0.15 |
s |
|
Vibration Damping Rate |
≥65% |
- |
|
Body Tilt Reduction Rate |
≥55% |
- |
|
Working Temperature Range |
-35 to 130 |
℃ |
|
Corrosion Resistance |
≥1400 Hours (Salt Spray Test) |
- |
|
Service Life |
≥900,000 |
km |
Product Advantages
Superior Frame & Cargo Protection: Absorbs and dissipates road impacts instead of transferring them to the trailer frame and box, reducing structural fatigue and preventing load shifting or damage.
Consistent Stability During Unloading: Maintains a level stance as the load shifts and empties, providing a safer, more controlled tipping operation and reducing the risk of jackknifing.
Enhanced Traction & Site Mobility: Allows axles to articulate independently, keeping wheels in contact with uneven ground for better traction and reducing the chance of becoming stuck.
Reduced Maintenance & Downtime: Eliminates broken leaf springs and minimizes wear on other chassis components, leading to higher availability and lower lifetime repair costs.
Manufacturing & Process Technology
Components are cut with high-precision plasma or laser cutters. All welding is performed robotically for deep, consistent penetration and is followed by stress-relieving. The assembly undergoes shot peening to enhance fatigue resistance. A final validation includes cycling the suspension through its full travel under simulated load and pressure testing the complete air system to ensure integrity before shipment.
Services
We offer application-specific engineering to match the suspension to your trailer's load profile and typical operating terrain. Services include CAD mounting templates, on-site installation guidance for OEMs, and comprehensive maintenance training for fleet technicians. A dedicated inventory of wear kits and air springs ensures rapid parts availability.
FAQ
Q: How does air suspension improve tire life on a dump trailer?
A: By allowing axles to articulate and maintaining even weight distribution across all wheels, it prevents tire scuffing and off-loading on uneven ground, leading to more even tread wear.
Q: Is the system vulnerable to damage from flying rocks or debris?
A: Critical components like air springs can be optioned with protective stone guards or shrouds. Our standard design positions hoses and valves in protected locations where possible.
Q: Can the system handle the extreme twist of operating on very uneven ground?
A: Yes, the independent articulation and long travel are specifically designed for this. The robust pivot points and trailing arms are engineered to handle constant torsional stress.
Q: What happens if an air bag fails on site?
A: The system includes mechanical fail-safe stops (or can be retrofitted with auxiliary springs) to prevent the axle from dropping catastrophically, allowing the trailer to be carefully moved for repair.
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