Multi-tine Shaft
High-density fine-tine aeration
The Multi-tine Shaft applies the same patented vibration technology in a much tighter pattern: replaceable multi-tine shells put 55 holes into every square foot with a shallow, gentle action. With the optional seed box attachment it prepares ground for seed and meters a wide variety of cool- and warm-season grass seed — when turf is well rooted and the strongest.
This shaft utilizes vibration to relieve compaction on artificial playing surfaces up to 25% after the first pass. Prolongs the life expectancy well beyond the warranty.
[ UNIVERSAL FRAME SYSTEM · WEIGHTS ]
Know your total weight
Frame + shaft + your selected accessories = total.
No accessory added.
| Model | Frame (lb) | Shaft (lb) | Add-on (lb) | Total (lb) |
|---|---|---|---|---|
| UA40 · 40″ | 303 | 245 | 0 | 548 lb |
| UA60 · 60″ | 347 | 270 | 0 | 617 lb |
| UA80 · 80″ | 672 | 340 | 0 | 1012 lb |
Totals include the frame, listed shaft weight and selected accessories. Unselected accessories and other attachments are excluded.
The seed box is the only optional accessory in this Power Seeder comparison. Roller and rake are not added separately.
These equipment weights are not tractor lift-capacity guidance.
Spec sheet
| Specification | UA40 · 40″ | UA60 · 60″ | UA80 · 80″ |
|---|---|---|---|
| Action | Fine-tine vibratory | Fine-tine vibratory | Fine-tine vibratory |
| Best for | Overseeding · netted sod | Overseeding · netted sod | Overseeding · netted sod |
| Shaft weight | 245 lb | 270 lb | 340 lb |
| Aeration density | 55 holes per sq ft | 55 holes per sq ft | 55 holes per sq ft |
| Vibration depth | 1⅜ in | 1⅜ in | 1⅜ in |
| Side-to-side tine travel | ½ in | ½ in | ½ in |
| Tines (as listed) | 24 | 36 | 48 |
| Rotor bearings | Double-sealed tapered roller | Double-sealed tapered roller | Double-sealed tapered roller |
| Specification | UA40 · 40″ | UA60 · 60″ | UA80 · 80″ |
|---|---|---|---|
| Weight | 200 lb | 330 lb | 380 lb |
| Capacity | 4.7 cu ft | 6.7 cu ft | 9.4 cu ft |
| Rate control | Micro flute adjustment / seed cup gauge mechanism / interchangeable sprockets | Micro flute adjustment / seed cup gauge mechanism / interchangeable sprockets | Micro flute adjustment / seed cup gauge mechanism / interchangeable sprockets |
| Outlets | 10 | 15 | 20 |
| Drive | Electric | Ground | Ground |
Select Seed box in the AERA-vator, Multi-tine or Power Seeder weight comparison to include its weight.
Weights are listed by frame size. Combined weights above are frame plus shaft and any accessory selected above. Other attachments are excluded.



