October 03, 2026
Here's a side-by-side look at the TTW machine lineup to help you find the right fit.
| Feature | AK-I | AK-II (no longer sold) | DUO | AK5 | AK-III |
|---|---|---|---|---|---|
| Pile types | Cut | Loop | Cut & Loop | Cut & Loop | Cut & Loop |
| Ease of use | Very easy | Very easy | Very easy | Very easy | Medium–difficult |
| Pile height change | Very difficult | Very easy | Medium | N/A (fixed) | Medium |
| Pile height range | 0.275–0.70" (7–18mm) | 0.157–0.55" (4–13mm) | Low pile: 8–16mm; Medium pile: 20–30mm; High pile: 35–45mm | 16mm only | 0.78–2.36" (20–60mm) |
| Weight | 3 lbs | 3 lbs | 3 lbs | 3 lbs | 4 lbs 10 oz |
| Voltage | 110–220v | 110–220v | 110–220v | 110–220v | 110–220v |
| Air compressor? | No | No | No | No | Yes |
Want to see the machines at work? Watch them tuft in this video.
Looking for a backup or replacement that feels like the AK-I? The low-pile DUO is very similar to the AK-I, and it also gives you loop pile.
Our medium pile DUO (20–30mm range) ships set to 30mm and our high pile DUO (35–45mm range) ships set to 40mm from the factory, so each is ready to tuft at that height out of the box.
The DUO comes in three versions: low pile (8–16mm), medium pile (20–30mm) and high pile (35–45mm). The low pile DUO can tuft both cut and loop pile from 8mm to 16mm, giving it a wider range than the AK-5. Every TTW machine comes with lifetime support, and we offer reasonable repair prices if your machine ever needs to be sent in.
The AK5 and the low-pile DUO are our two most-asked-about low-pile machines. Here's how they differ:
Rule of thumb: If you want a quiet, light machine and you're happy with a single 16mm pile, choose the AK5. If you want to vary your pile heights, choose the DUO.
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If you teach workshops or run a studio, we offer 25% off bulk supplies. The discount can be combined with current sale prices on machines.