Grown power unit axle
- APPLICATION Grown power unit
- TYPE Steering front axle
- MAX PAYLOAD 3 500 kg
- BRAKING Parking drum brake
- SUSPENSION Leave springs
- STEERING Ball bearing turntable
Axle for Ground Power Units: strength and stability for airport GSE
A ground power unit (GPU) axle is engineered specifically for GSE (Ground Support Equipment) vehicles that deliver electrical power to aircraft while on the ground. These units must be robust, dependable and capable of supporting the GPU’s structure and load without compromising stability. This axle is designed to carry the weight of the GPU and associated components, providing a reliable foundation for towing, positioning and service operations across airport aprons and ramps.
In airport environments where equipment is constantly moved and repositioned, a well-designed axle helps ensure the durability and steadiness essential for safe, continuous service.
Load handling and mechanical simplicity for sustained service
The axle used on a GPU vehicle is built as a straight, non-steering axle with a high load-bearing capability. This straightforward design minimizes moving parts, which is an advantage in heavy-duty airport operations where equipment is used intensively and maintenance windows are limited. A straight axle with a high load capacity distributes vertical and lateral forces effectively, helping to maintain a consistent ride quality and reducing the risk of mechanical wear from repeated use.
This structural simplicity also contributes to long-term reliability by reducing points of mechanical failure and facilitating easier inspection and servicing.
Disc braking and leaf spring suspension for controlled movement
To ensure safe and controlled operation, the axle can be equipped with a disc brake system that provides steady, reliable stopping power — particularly important on GPU vehicles that may operate fully loaded or in proximity to aircraft and other ground equipment. Disc brakes are valued for their consistent performance and heat resilience, making them suitable in scenarios where frequent braking is required.
The leaf spring suspension adds another layer of operational stability by absorbing small ground irregularities on pavements and ramps. Together, these features help maintain a stable, predictable driving experience whether the GPU is being repositioned or parked for service.
Purpose-built for demanding airport environments
Ground power units are central to efficient aircraft turnaround operations. Their axles must support repeated towing, on-site positioning and occasional repositioning across tarmac and service roads. An axle designed for this purpose must balance load capacity, durability, braking performance and structural reliability to keep the GPU available and functioning day after day.
Paillard’s bespoke design approach ensures that the GPU axle is not just strong, but integrated in a way that aligns with how these units are used in real-world airport settings — helping reduce downtime, simplify maintenance and improve the overall operational performance of your ground support fleet.