Head to head
Stewart GX 18-23 S vs Sun Way Galaxy SW385M16
The Stewart GX 18-23 S is rated 19.5 tonnes heavier gross.
Last reviewed 13 September 2026

Key differences
- Gross weight: the Stewart GX 18-23 S is rated 19.5 tonnes heavier gross.
Specifications side by side
| Stewart GX 18-23 S | Sun Way Galaxy SW385M16 | |
|---|---|---|
| Gross weight | 20,000kg | 500 kg |
| Body size | 6,700 x 2,450 x 1,500mm | - |
| Cubic capacity | 23m3 grain, 39m3 silage | - |
| Tare weight | 5,900kg | - |
| Axles | 125mm dia., 10-stud, 420x180mm brakes | - |
| Unladen weight | - | 150 kg |
| Payload | - | 350 kg |
| Length | - | 4,195 - 5,880 mm (adjustable) |
| Width | - | 1,600 mm |
| Suitable boat length | - | 4.60 m |
Sources: Stewart GX 18-23 S, Sun Way Galaxy SW385M16. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GX 18-23 S if...
- you want one that is rated 19.5 tonnes heavier gross
An 18-23 tonne tipping trailer built for grain and silage haulage, with an easy-sheet system so one person can cover a loaded trailer without climbing on top. Its monocoque steel body gives it the extra capacity over Stewart's standard flat trailers.
Listed by
- Rising Sun Trailer Hire - York
Buy or hire the Galaxy SW385M16 if...
The Galaxy SW385M16 suits owners of small motorboats who need some flexibility in trailer length, since its adjustable frame extends to suit different hull lengths up to about 4.6m. Its sliding galvanised axle lets the owner fine-tune nose weight for safer towing behind a smaller car.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Stewart GX 18-23 S and the Sun Way Galaxy SW385M16?
The Stewart GX 18-23 S is rated 19.5 tonnes heavier gross. The Stewart GX 18-23 S is a twin-axle tipping grain and silage trailer with an easy-sheet cover system; the Sun Way Galaxy SW385M16 is a a small adjustable-length boat trailer in Sun Way's Galaxy range, with a sliding axle to help balance the load when towing..
Can I tow the Stewart GX 18-23 S or the Sun Way Galaxy SW385M16 on a car licence?
Stewart GX 18-23 S is rated over 3,500kg gross, which is beyond what a car can tow in the UK.
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