# Makino a51nx

Hardware · `a51nx` · verification: source checked

The Makino a51nx is a horizontal machining center with a 400 x 400 mm pallet and X/Y/Z travels of 560/640/640 mm. It uses a 14,000 rpm spindle with CAT40 (HSK-63) taper and carries up to 60 tools in its automatic tool changer. The machine is controlled by the Pro6 control and is intended for ferrous and non-ferrous part production.

## Specification

| Property | Value |
|---|---|
| Category | cnc mill |
| Travel X | 560 mm |
| Travel Y | 640 mm |
| Travel Z | 640 mm |
| Spindle max | 14000 rpm |
| Spindle taper | CAT40 (HSK-63) |
| Rapid traverse | 60 m/min |
| Tool capacity | 60 |
| Table length | 400 mm |
| Table width | 400 mm |
| Table load | 400 kg |

## Connected

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

## Study notes

- The Pro6 control includes Process Tracer and Feed Optimizer, which are components of Makino iKnowledge software.
- A machine health monitoring system is included for proactive maintenance and downtime reduction.
- The standard B-axis is direct-drive; the machine has 1G-axis acceleration.
- Cutting feedrate is 50,000 mm/min.
- Maximum workpiece size is ∅630 mm x 900 mm.
- Tool-to-tool time is 0.9 s and chip-to-chip time is 2.2 s.
- Maximum tool length is 430 mm for CAT and 420 mm for HSK; maximum tool diameter is 170 mm and maximum tool weight is 12 kg.
- Optional spindle speed is 20K; optional ATC capacities are 40, 134, 219 and 311 tools.
- The machine uses roller-type linear guides and one-piece X- and Z-axis way covers.
- A dual-supported tool-change arm is used.

## Sources

1. [a51nx](https://www.makino.com/en-us/machine-technology/machines/horizontal-4-axis/a51nx) (accessed 2026-10-25)

---

Source page: https://machineschema.com/hardware/makino-a51nx  
JSON: https://machineschema.com/hardware/makino-a51nx.json  
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite Machine Schema and the original sources.