Side-by-side
FR-400/28 Series Combined GPU (400 Hz + 28.5 V DC) vs Watex Airfield / Runway Marking Removal Vehicle (UHP, supplied by Watex)
Spec comparison for two products on Aviation Souk. Both compete in Ground Support Equipment (GSE).

Ground Support Equipment (GSE)
FR-400/28 Series Combined GPU (400 Hz + 28.5 V DC)
by CDR Technology OÜ
Combined 400 Hz AC and 28.5 V DC ground power unit delivering both aircraft supply standards simultaneously from a single trolley.

Ground Support Equipment (GSE)
Watex Airfield / Runway Marking Removal Vehicle (UHP, supplied by Watex)
by Watex (Nanjing Watex Tech Co., Ltd.)
UHP truck-mounted water-blasting system purpose-configured for chemical-free removal of airfield runway and taxiway paint markings.
| Cost of ownership | FR-400/28 Series Combined GPU (400 Hz + 28.5 V DC) | Watex Airfield / Runway Marking Removal Vehicle (UHP, supplied by Watex) |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 0 |
Specs
Technical specifications.
| Spec | FR-400/28 Series Combined GPU (400 Hz + 28.5 V DC) | Watex Airfield / Runway Marking Removal Vehicle (UHP, supplied by Watex) |
|---|---|---|
| AC output frequency | 400 Hz | — |
| AC rated capacity | Up to 360 kVA | — |
| AC output voltage | 115/200 V (3-phase) | — |
| Optional 400 Hz output | 36 V, up to 30 kVA | — |
| DC output voltage | 28.5 (modes: 28 / 48 / 56) V | — |
| DC continuous current | Up to 1,600 A | — |
| DC overload current | Up to 2,500 A | — |
| Simultaneous AC + DC operation | Yes — fully independent channels | — |
| Additional outputs | 50/60 Hz standard sockets | — |
| Operating pressure (standard markings) | — | 1,500–2,000 bar |
| Maximum pressure (heavy/multi-layer) | — | Up to 3,000 bar |
| Nozzle count per panel | — | 24–42 orifices |
| Water consumption | — | ~22 L/min |
| Vehicle gross weight | — | ~26 tonnes |
| Water tank capacity | — | ~950 litres (250 US gal) |
| Tank material | — | 304 stainless steel, 4 mm |
| Filtration | — | Three-stage, 200 gpm, 1 µm final |
| Diesel engine | — | Cummins or Weichai |
| Control system IP rating | — | IP 65 |
| Chemical use | — | None — pure water only |
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