Pit Systems

Airport Apron Pit Systems — Electrical & Air Conditioning

Electrical and air conditioning pit systems for fixed installation on airport apron stands. Designed to deliver 400 Hz ground power (90 to 180 kVA), 28/270 VDC power, 50/60 Hz maintenance power, and pre-conditioned air (PCA) to aircraft during turnaround, maintenance, and overnight parking. Suitable for commercial airports of all sizes, from regional single-aisle gates to international wide-body stands, as well as military airfields and MRO facilities. Replaces mobile GPUs and PCA carts, enabling cleaner, quieter, and more efficient apron operations.

Apron pits / ground power

Data sheet

Standards and compliance

EN124 F900: Load-bearing covers for airport and heavy traffic areas (900 kN)

Details and drawings

The Siyuans apron pit systems deliver fixed 400 Hz ground power and pre-conditioned air directly from below the aircraft stand, eliminating the need for mobile GPUs and PCA units on the apron. Available in two categories (electrical and air conditioning) and two configurations each (hatch and pop-up), the pit systems are designed for airports looking to reduce apron clutter, improve turnaround efficiency, and lower operational costs.

All pit systems comply with EN124 F900, the European standard for load-bearing covers rated for airport and heavy traffic areas (900 kN / approximately 90 tonnes).