Sahawatthanakit (1988) Co., Ltd.
SAHAWATTHANAKIT(1988) · Make It Smart
Our Services · 05

Aviation Ground Support Equipment (GSE) Procurement

400 Hz ground power · 28 VDC · aircraft tow tractors — selected against aircraft type and verifiable standards

38
Years experience
Free
Quotes, business hours
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Sahawatthanakit (1988) is a registered vendor with Thai Aviation Industries (TAI) as a distributor/representative, with its registered scope extended to Ground Support Equipment. Our role is sourcing and model selection for the operating unit — we are not a manufacturer and hold no exclusive representation for any GSE maker, which is precisely what lets us compare models across European, US and Asian manufacturers on the merits of the job. Scope covers 400 Hz frequency converters (50/60 Hz to 115/200 VAC 400 Hz), ground power units in both the combined 400 Hz plus 28 VDC configuration and the high-output 180 kVA class, and conventional tow tractors sized by the aircraft types to be moved. Every model we put forward is quoted from the manufacturer's own datasheet with the source named on the page, and referenced to standards that can be checked — MIL-STD-704, ISO 6858, ISO 1540, SAE ARP5015, EN 2282, and MIL-STD-461 where electromagnetic interference control is specified. Priced per project: tell us the aircraft types, the power required (400 Hz / 28 VDC) and how the equipment will be used, and we will return a quotation with a line-by-line specification comparison.

Standards & Certifications

Models are quoted from the manufacturers' own datasheets and referenced only to standards that can be checked — MIL-STD-704 (aircraft electric power characteristics), ISO 6858 (ground power supplied to aircraft), ISO 1540 (aircraft electrical system characteristics), SAE ARP5015 (400 Hz ground power performance), EN 2282 (aircraft power supply characteristics), and MIL-STD-461 (electromagnetic interference control) where specified. Diesel generator sets reference ISO 8528 and air compressors ISO 1217 / ISO 2151, matching the scope registered with Thai Aviation Industries (TAI). We source and select rather than manufacture, and hold no exclusive representation for any maker — specifications vary by sub-model and options, so the manufacturer's current datasheet always governs.

Often used together with

Customers on the same job usually add these — just say so if you want them on the quotation

Corrosion-protection work (Cathodic Protection)Equipment parked outdoors in coastal apron air corrodes before its service life endsProtective paint and coatingsRecoating tractor frames and power-unit enclosures at maintenance intervals
Next · 06
Aircraft Paint & Surface-Prep Supplies

Specification-grade solvents, surface preparation, abrasives and masking — delivered with COC and a stated remaining shelf life

Learn more
Common Questions

Before you send an RFQ

Q1.Which GSE manufacturer does Sahawatthanakit represent?+
None exclusively, and we do not manufacture. Our role is sourcing and model selection for the operating unit, which is exactly what allows us to compare models across European, US and Asian manufacturers on the merits of the job rather than on what we happen to stock. Sahawatthanakit (1988) is a registered vendor with Thai Aviation Industries (TAI) as a distributor/representative, with that scope extended to Ground Support Equipment.
Q2.How is a ground power unit matched to our aircraft?+
Three things decide it: whether the aircraft needs 400 Hz AC only or 28 VDC as well (single units supply both where required); the actual output and number of outlets needed, which is what moves a requirement up to the 180 kVA class for servicing several aircraft at once; and whether airport mains power is available, which calls for a frequency converter, or not, which calls for a diesel-engined unit. Send us the aircraft types and how the equipment will be used and we will return a line-by-line comparison.
Q3.How is a tow tractor sized?+
From the heaviest aircraft to be moved, read against two figures together: the tractor's own weight, which puts the tyres down onto the apron, and the drawbar pull the manufacturer declares. Conventional tow tractors come in a series of weight classes so the unit can be matched to the aircraft actually operated rather than over-bought. Tell us the aircraft types and we will select the class.
Q4.Where do the quoted specifications come from?+
From the manufacturers' own datasheets, with the source named on every page of the catalogue — measured values rather than marketing copy. The standards referenced are ones that can be checked: MIL-STD-704, ISO 6858, ISO 1540, SAE ARP5015, EN 2282, and MIL-STD-461 where interference control is specified. Specifications change by sub-model and option, so the manufacturer's current datasheet always governs; we can supply it in full.
Q5.What do you need in order to quote?+
The aircraft types to be supported; the power required — 400 Hz only or 28 VDC as well, and at what output; whether the unit should be towable, fixed or trailer-mounted; and the quantity and delivery timing. That is enough for us to shortlist the models that meet the requirement and return a line-by-line specification comparison.

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