Head to head
Stewart GX 18-23 S vs Sun Way Galaxy G510M16
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 G510M16 | |
|---|---|---|
| Gross weight | 20,000kg | 500 / 600 / 650 / 750 kg (modular rating) |
| Axles | 125mm dia., 10-stud, 420x180mm brakes | Single, unbraked |
| Body size | 6,700 x 2,450 x 1,500mm | - |
| Cubic capacity | 23m3 grain, 39m3 silage | - |
| Tare weight | 5,900kg | - |
| Unladen weight | - | 190 kg |
| Payload | - | up to 560 kg |
| Length | - | 470 - 600 cm |
| Width | - | 181 cm |
| Suitable boat length | - | up to 4.80 m |
Sources: Stewart GX 18-23 S, Sun Way Galaxy G510M16. 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 G510M16 if...
The Galaxy G510M16 suits owners of small motorboats up to about 4.8m, using a multi-roller bed rather than bunks so the hull can be winched on and off easily at a slipway. Its modular rating up to 750kg gross weight lets an owner choose the plate that matches their towing licence.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Stewart GX 18-23 S and the Sun Way Galaxy G510M16?
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 G510M16 is a a single-axle multi-roller boat trailer from French manufacturer Sun Way, built for launching and recovering small motorboats..
Can I tow the Stewart GX 18-23 S or the Sun Way Galaxy G510M16 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.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.