What is the repeatability of the FANUC ROBODRILL α-D21MiB5 Plus?

±0.004 mm, per α D21MiB5 Plus (fanucamerica.com).

What is the maximum spindle speed of the FANUC ROBODRILL α-D21MiB5 Plus?

24000 rpm, per α D21MiB5 Plus (fanucamerica.com).

What is the X-axis travel of the FANUC ROBODRILL α-D21MiB5 Plus?

500 mm, per α D21MiB5 Plus (fanucamerica.com).

FANUC ROBODRILL α-D21MiB5 Plus

The ROBODRILL α-D21MiB5 Plus is a vertical CNC drilling and milling machine with 500 mm X, 400 mm Y and 330 mm Z travel on a 650 x 400 mm table. Its spindle runs between 10,000 and 24,000 rpm and holds 21 tools in the automatic tool changer. It is run by the FANUC ROBODRILL 31i-B5 Plus controller and is intended for milling and drilling work with multipart clamping.

Source checked14/14 values · 2026-10-26

FANUC CNC mill

Repeatability

±0.004mm

Travel X

500mm

Travel Y

400mm

Travel Z

330mm

Spindle max

24,000rpm

Specification

2 sources

Category	cnc mill
Spindle power	26 kW
Spindle taper	BBT30
Rapid traverse	54 m/min
Tool capacity	21
Table length	650 mm
Table width	400 mm
Table load	300 kg

Quick answers

What is the repeatability of the FANUC ROBODRILL α-D21MiB5 Plus?: ±0.004 mm, per α D21MiB5 Plus (fanucamerica.com).
What is the maximum spindle speed of the FANUC ROBODRILL α-D21MiB5 Plus?: 24000 rpm, per α D21MiB5 Plus (fanucamerica.com).
What is the X-axis travel of the FANUC ROBODRILL α-D21MiB5 Plus?: 500 mm, per α D21MiB5 Plus (fanucamerica.com).

Study notes

Spindle load ratings: 80 Nm / 14.2 kW at 10,000 rpm (1 min); 13.6 Nm / 4 kW continuous; 35 Nm / 26 kW at 24,000 rpm (1 min); 7.5 Nm / 5.5 kW continuous.
Spindle speed range is 10,000 to 24,000 rpm.
Spindle holder options stated: 7/24 taper No.30/SK30 DIN 69871A and BBT30.
Machine mass is given as 2 t, or 2.2 t with DDR-TiB.
Tool change time (2 kg tool, cut to cut) is 1.6 s.
Max. tool length 250 mm, max. tool diameter 80 mm, max. tool mass 3 kg.
Distance from spindle nose to table is 250-580 mm with HC100.
Maximum programmable cutting feed is 30,000 mm/min.
Bidirectional positioning accuracy per ISO 230-2:1988 is < 0.006 mm; bidirectional repeatability per ISO 230-2:1997/2006 is < 0.004 mm.
Air pressure consumption is 160 L/min at 0.35-0.55 MPa.