Top Air Plate

Top Air Plate is a key component of heavy-duty trailer air suspension system. It acts as the upper mounting bracket for air spring, transferring vertical load between frame and air bag during vehicle operation. Made of cast steel or high-strength steel plate, this part bears dynamic load, impact and vibration while the trailer runs. It ensures stable positioning of air bellows, protects air spring from offset and abnormal wear, and maintains the performance of the whole air suspension assembly. It is a standard OEM replacement part for semi-trailer air suspension.

Product Features

• High-strength Steel Construction – Adopt cast steel / thick welded steel structure, strong load capacity, excellent shock resistance and fatigue resistance.
• Precision Machined Mounting Holes – Hole position accuracy guarantees perfect fit with air spring and suspension frame, easy installation.
• Reliable Surface Treatment – Black painted finish for anti-corrosion and rust resistance, suitable for muddy, wet and dusty road conditions.
• Stable Load Transmission – Distribute suspension load evenly, prevent air bag deflection and extend service life of air spring.
• Strict Quality Control – Load test and dimensional inspection before delivery, stable performance for long-term heavy transport.
• Wide Application & Customization – Compatible with mainstream trailer air suspension models, OEM drawing customization available.