Fanuc Robodrill α-D21LiB5

Est. $90,000 - $140,000 Updated 2026-10-03

Key Specifications

X Travel

700 mm (27.5 in)

Y Travel

400 mm (15.7 in)

Z Travel

330 mm (13 in)

Max Spindle

10,000 RPM (24,000 RPM optional)

Spindle Taper

BT30 / BBT30

Tool Capacity

21-position turret

How much does the Fanuc Robodrill α-D21LiB5 cost?

Estimated price range

Est.$90,000 - $140,000

Our best estimate for a vertical machining centers (vmc) in this class — not a quote from Fanuc. Configuration moves it a long way.

Overview

The Fanuc Robodrill α-D21LiB5 is a BT30 / BBT30 vertical machining center with the Fanuc 31i-B5 control, a 21-position turret and listed travels of 700 x 400 x 330 mm (27.5 x 15.7 x 13 in). The listed figures cover both spindle choices in detail, and the two behave very differently.

The 10,000 RPM spindle peaks at 14.2 kW (19 hp) and delivers 79.7 Nm (58.8 ft-lbf) at 1,700 RPM. The optional 24,000 RPM spindle peaks higher, at 26.0 kW (35 hp), but its torque is 35 Nm. Less than half the torque at well over twice the speed: the high-speed spindle is for small cutters and light, fast passes, and the standard spindle is the one for larger drills, taps and face mills.

Tools are limited to 250 mm (9.8 in) in length, 80 mm (3.1 in) in diameter and 4 kg (8.8 lb). Tool change time depends on the variant: 0.7 sec tool-to-tool and 1.3 sec chip-to-chip are listed for the ADV, 0.9 sec and 1.5 sec for the Standard. Rapids are 54 m/min (2,125 ipm) and the maximum cutting feedrate is 30,000 mm/min (1,181 ipm).

The table is 850 x 410 mm (33.5 x 16.1 in) with a 300 kg (660 lb) limit, and the spindle nose sits 250-580 mm (9.8-22.8 in) above it. Listed positioning accuracy is ±0.003 mm (±0.00012 in) with ±0.002 mm (±0.00008 in) repeatability. Machine weight is listed as 2,300 kg (5,070 lb).

Full Specifications

Parameter	Value
X-Axis Travel	700 mm (27.5 in)
Y-Axis Travel	400 mm (15.7 in)
Z-Axis Travel	330 mm (13 in)
Max Spindle Speed	10,000 RPM (24,000 RPM optional)
Spindle Taper	BT30 / BBT30
Spindle Motor Power	14.2 kW (19 hp) peak @ 10K RPM; 26.0 kW (35 hp) peak @ 24K RPM
Spindle Torque	79.7 Nm (58.8 ft-lbf) @ 1,700 RPM (10K spindle); 35 Nm @ 24K spindle
Tool Capacity	21-position turret
Max Tool Length	250 mm (9.8 in)
Max Tool Diameter (full magazine)	80 mm (3.1 in)
Max Tool Weight	4 kg (8.8 lb)
Tool to Tool Time	0.7 sec (ADV); 0.9 sec (Standard)
Chip to Chip Time	1.3 sec (ADV); 1.5 sec (Standard)
Table Size	850 x 410 mm (33.5 x 16.1 in)
Max Table Load	300 kg (660 lb)
Spindle Nose to Table	250-580 mm (9.8-22.8 in)
Rapid Traverse Rate	54 m/min (2,125 ipm)
Max Cutting Feedrate	30,000 mm/min (1,181 ipm)
Positioning Accuracy	±0.003 mm (±0.00012 in)
Repeatability	±0.002 mm (±0.00008 in)
Machine Weight	2,300 kg (5,070 lb)
CNC Control	Fanuc 31i-B5

Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.

Strengths & Limitations

Strengths

Standard spindle delivers 79.7 Nm (58.8 ft-lbf) at 1,700 RPM and peaks at 14.2 kW (19 hp)
Optional 24,000 RPM spindle peaks at 26.0 kW (35 hp)
Tool change of 0.7 sec tool-to-tool on the ADV, 0.9 sec on the Standard
Cutting feedrate up to 30,000 mm/min (1,181 ipm) with 54 m/min (2,125 ipm) rapids
Listed positioning accuracy of ±0.003 mm (±0.00012 in)

Limitations

Tools are limited to 4 kg (8.8 lb) and 80 mm (3.1 in) in diameter
The 24,000 RPM spindle has 35 Nm of torque, less than half the 79.7 Nm (58.8 ft-lbf) of the standard spindle
Table load stops at 300 kg (660 lb)
Z travel is 330 mm (13 in), within a 250-580 mm (9.8-22.8 in) spindle-nose-to-table range

Best For

Drilling and tapping with short tool changes, 1.3 sec chip-to-chip on the ADV Small-cutter finishing with the optional 24,000 RPM spindle BT30 / BBT30 tooling up to 80 mm (3.1 in) in diameter Parts within 700 x 400 mm (27.5 x 15.7 in) and 300 kg (660 lb)

Frequently Asked Questions

01 Which spindle should I pick, 10,000 or 24,000 RPM?

Go by torque. The 10,000 RPM spindle is listed at 79.7 Nm (58.8 ft-lbf) at 1,700 RPM with a 14.2 kW (19 hp) peak, which suits larger drills, taps and face mills. The optional 24,000 RPM spindle peaks at 26.0 kW (35 hp) but has 35 Nm of torque, so it fits small end mills run fast.

02 What are the tool size limits?

Maximum tool length is 250 mm (9.8 in), maximum diameter 80 mm (3.1 in) and maximum weight 4 kg (8.8 lb). The turret has 21 positions and the taper is listed as BT30 / BBT30.

03 How quick is the tool change on the Robodrill α-D21LiB5?

Two sets of figures are listed. The ADV changes tools in 0.7 sec tool-to-tool and 1.3 sec chip-to-chip. The Standard takes 0.9 sec and 1.5 sec. When looking at a particular machine, check which of the two it is.

04 How much clearance is there under the spindle?

The spindle nose to table distance is listed as 250-580 mm (9.8-22.8 in), with 330 mm (13 in) of Z travel. Add the height of the fixture and part to the tool length and compare the total with those figures before committing a tall setup.