APEX Hyperdisc vs Great Plains Turbo-Max
Turbo-Max is a vertical tillage tool with wavy, non-concave Turbo blades, not a concave high-speed disc like the Hyperdisc. Here is how the two compare.
Specifications side by side
| Spec | APEX Hyperdisc | Great Plains Turbo-Max |
|---|---|---|
| Type | High-speed disc | Vertical tillage with wavy, non-concave Turbo blades |
| Frame styles | 3-point (C Series), bi-fold pull-type (H, H+), tri-fold pull-type (T) | Rigid 850TM to 1500TM (8.5 to 15 ft); folding VT1100 (20 to 40 ft) and narrow-fold VT1110 (20, 25 ft) |
| Working widths | 10 ft 8 in to 41 ft 8 in | 8.5 to 15 ft rigid; 20 to 40 ft folding |
| Horsepower | 120 to 710 HP total (see each model) | 85+ PTO HP at 8.5 ft, 180+ at 20 ft, 380+ at 40 ft |
| Working speed | 8 to 12 mph | Not published |
| Disc size | 20 in or 22 in | 20 in blades; 22 in optional on VT1100 |
| Disc spacing | 5 in | 7.5 in per gang, 3.75 in effective |
| Disc angle | 14 degrees front, 17 degrees rear | Gang angle adjusts hydraulically 0 to 6 degrees on the go |
| Working depth | 2 to 6 in (20 in discs), 2 to 8 in (22 in discs) | 1 to 5 in (VT1110, dealer listed) |
| Disc mounting | Each disc on its own arm, 1 5/8 in rubber torsion rod, maintenance-free hubs | Gang mounted coulters |
| Finishing rollers | 12 bar or 9 bar cage roller included; double cage, spring packer and Ottico options by model | Rolling spike harrow and reels; baskets on VT models |
| Published price | Yes, from $19,451 | No |
How to choose
- Turbo-Max uses non-concave blades with on-the-go gang angle from 0 to 6 degrees. Hyperdisc uses concave discs set at 14 and 17 degrees.
- Turbo-Max has tighter effective spacing, 3.75 in. Hyperdisc publishes a working depth of 2 to 8 in.
- Hyperdisc prices are listed online. Turbo-Max pricing is not published.
Build and price yours
Build and price yoursGreat Plains Turbo-Max specifications are from the manufacturer's published information as of October 2026 and can change. APEX, Hyperdisc, Great Plains and Turbo-Max are trademarks of their owners. High-Speed Tillage USA is not affiliated with Great Plains Manufacturing.