Built for contractors and large-scale farming operations, the Stewart TETRAD is a high-capacity silage trailer engineered to move more material with every load. With silage sides fitted, it delivers an impressive 70m³ capacity, making it the largest Stewart trailer in the Armour Group range.
The TETRAD runs on four heavy-duty 150mm BPW axles, with steering on both the front and rear axles for improved manoeuvrability. Buyers can choose between air or steel suspension, along with 560/60 R22.5 or 600/55 R26.5 tyres to suit their operating requirements.
A single seven-stage tipping ram provides powerful and efficient unloading, while the hydraulic rear door, sprung drawbar and hydraulic jack leg make everyday operation easier. For transport between farms and jobs, the fast-tow configuration includes air braking, ABS and a load-sensing valve.
Each TETRAD is shotblasted and finished in durable two-pack polyurethane Flexi Paint. Commercial LED road lighting, conspicuity markings, guarded rear lights and a galvanised inspection ladder complete a trailer designed for demanding Australian conditions.
Standard equipment
- Hydraulic rear door
- Front grille lined with Perspex
- Air braking, ABS and load-sensing valve
- Mud flaps at the front, wings and rear of the trailer
- Galvanised inspection ladder
- Hydraulic jack leg
- Sprung drawbar
- LED commercial road lighting
- Side marker lights that also function as indicators
- Rear light guards
- LED flashing warning light with on/off switch
- Wheel nut indicators
- Conspicuity tape around the body
- Colour-coded hydraulic hose grips
Optional extras
- On-board weigh cell system
- Automatic lubrication system
- Stainless steel rear-door light bar
- Silage sides
- Hydraulic flip-cover system
- Central tyre inflation system
| Model | TETRAD |
|---|---|
| Carrying capacity | 35,000kg |
| Standard cubic capacity | 45m³ |
| Silage capacity | 70m³ |
| Body dimensions | 9000 x 2900 x 1900mm |
| Axles | Four 150mm BPW axles, 10 stud, with 420 x 180 brakes |
| Steering | Front and rear steering axles |
| Suspension | Air suspension or steel suspension |
| Tyres | 560/60 R22.5 or 600/55 R26.5 |
| Tipping mechanism | Single seven-stage tipping ram |
| Hitch | 6-tonne K80 spoon hitch |