Model family · Akiles
Akiles DuoMac 4 family: 2 variants compared
Akiles DuoMac 421, Akiles DuoMac 431 are sold as closely related variants. Their spec sheets share most details, so we list them side by side here. Rows highlighted below are where the sourced specifications differ: Binding type.
Specifications by variant
| Spec | Akiles DuoMac 421 | Akiles DuoMac 431 |
|---|---|---|
| Model | DuoMac 421 | DuoMac 431 |
| Type | Wire & coil punch and binder | Wire & coil punch and binder |
| Binding type | 2:1 double-loop wire and 4:1 spiral coil (round holes); wire closer | 3:1 double-loop wire and 4:1 spiral coil (round holes); wire closer |
| Punching | Manual | Manual |
| Punch capacity | 20 sheets of 20 lb paper (single punch) | 20 sheets of 20 lb paper (single punch) |
| Binding capacity | Wire closing 3/16" to 1-1/4" | Wire closing 3/16" to 1-1/4" |
| Punch length | 14", open sides for wider documents | 14", open sides for wider documents |
Values are copied from each variant's sourced spec page. “n/a” or “not stated” means the source didn't state it; we don't estimate.
How to choose between them
Start with the highlighted rows. If they don't matter for how you'll use the machine, the variants are interchangeable on paper, and availability can decide. Each variant's own page keeps its sources, supplies and track record.
Where to buy each variant
We list a retailer only after confirming it sells the exact model. Amazon links are affiliate links. We don't show prices.