# Makino a91nx

Hardware · `a91nx` · verification: source checked

The Makino a91nx is a 4-axis horizontal machining center for large workpieces. It has 1,400 mm X, 1,200 mm Y and 1,350 mm Z travels, an 800 mm x 800 mm pallet and a 10,000 rpm CAT50 spindle. It uses a 60-position automatic tool changer and accepts pallet loads up to 2,000 kg.

## Specification

| Property | Value |
|---|---|
| Category | cnc mill |
| Axes | 4 |
| Payload | 2000 kg |
| Travel X | 1400 mm |
| Travel Y | 1200 mm |
| Travel Z | 1350 mm |
| Spindle max | 10000 rpm |
| Spindle taper | CAT50 (HSK-A100) |
| Rapid traverse | 60 m/min |
| Tool capacity | 60 |
| Table length | 800 mm |
| Table width | 800 mm |
| Table load | 2000 kg |

## Connected

- Manufacturer: [Makino](https://machineschema.com/manufacturer/makino.md)

## Study notes

- Pallet size is 800 x 800 mm; maximum workpiece size is Ø 1,450 x 1,450 mm.
- Spindle speed alternatives are 8,000 rpm and 15,000 rpm.
- Spindle taper alternative is HSK-A100.
- Cutting feedrate is 50,000 mm/min.
- ATC capacity alternatives are 185 and 297 tools.
- Tool-to-tool time is 1.8 s; the document also lists 2.2 s.
- Maximum tool length is 900 mm for CAT and HSK.
- Maximum tool diameter is Ø 356 mm.
- Maximum tool weight is 30 kg, or 35 kg with ATC 185/297.
- Maximum payload alternative is 3,000 kg.

## Sources

1. [a91nx](https://www.makino.com/en-us/machine-technology/machines/horizontal-4-axis/a91nx) (accessed 2026-10-25)

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