Mazak VARIAXIS i-300

Est. $350,000 - $550,000 Possible older model Updated 2026-10-02

This model was not found in Yamazaki Mazak's current lineup when we checked on 2026-10-02 (lineup page). It may be a superseded or older model; the specifications below are as we last recorded them.

Mazak VARIAXIS i-300 5-Axis Machining Centers

Key Specifications

X Travel

350 mm (13.78 in)

Y Travel

550 mm (21.65 in)

Z Travel

510 mm (20.08 in)

Max Spindle

12,000 RPM (18K / 25K / 30K RPM optional)

Spindle Taper

BIG-PLUS BT40 (HSK-A63 / HSK-F63 optional)

Tool Capacity

145 tools standard (expandable to 505)

How much does the Mazak VARIAXIS i-300 cost?

Estimated price range

Est.$350,000 - $550,000

Our best estimate for a 5-axis machining center in this class — not a quote from Yamazaki Mazak. Configuration moves it a long way.

Overview

The Mazak VARIAXIS i-300 is a small-envelope 5-axis machining center set up for automation: the listed figures show 350 mm (13.78 in) of X, 550 mm (21.65 in) of Y and 510 mm (20.08 in) of Z travel, a 145-tool magazine and an AWC capacity of 32 workpieces. Mazak's current lineup does not show a model under this exact name, so it may be an older designation. The nearest current machine is the VARIAXIS i-300 AWC.

The part it handles is small. Maximum workpiece size is listed as 350 mm (13.78 in) in diameter and 315 mm (12.40 in) in height, and the table load is 65 kg (143 lb) including the work holder, so fixture weight comes straight out of part weight. Tool storage is the opposite: 145 tools standard, listed as expandable to 505. The A-axis is listed at -120° to +30° and the C-axis at 360° continuous, both in 0.0001° increments.

The listed spindle is a built-in motor unit of 12,000 RPM with a BIG-PLUS BT40 taper, rated 22 kW / 30 hp at 40% ED and 15 kW continuous, with 72 Nm (53 ft-lb) at 40% ED. The table also names 18K, 25K and 30K RPM options and HSK-A63 or HSK-F63 tapers. For a new machine, go by the VARIAXIS i-300 AWC table, which gives 15 kW (20 HP) continuous and 39 ft-lb (53 Nm) continuous at 12,000 rpm with a CAT No.40 taper. Anyone looking at a used machine should confirm which spindle and magazine are actually fitted.

Full Specifications

Parameter	Value
X-Axis Travel	350 mm (13.78 in)
Y-Axis Travel	550 mm (21.65 in)
Z-Axis Travel	510 mm (20.08 in)
A Axis Tilt	-120° to +30° (150° total)
C Axis Rotation	360° continuous
Rotary Indexing	0.0001° increments (A and C axes)
Max Spindle Speed	12,000 RPM (18K / 25K / 30K RPM optional)
Spindle Taper	BIG-PLUS BT40 (HSK-A63 / HSK-F63 optional)
Spindle Drive	Built-in motor
Spindle Motor Power	22 kW / 30 hp (40% ED); 15 kW continuous
Spindle Torque	72 Nm (53 ft-lb) @ 40% ED
High Torque Spindle Option	35 kW / 47 hp, 134 Nm (99 ft-lb) @ 18,000 RPM
Tool Capacity	145 tools standard (expandable to 505)
Tool Shank	BT-40
Awc Capacity	32 workpieces (expandable to 40)
Max Workpiece Diameter	350 mm (13.78 in)
Max Workpiece Height	315 mm (12.40 in)
Max Table Load	65 kg (143 lb) including work holder
Rapid Traverse Rate	60 m/min (2,362 ipm) on X, Y, Z
Rotary Rapid Traverse	56 m/min (A and C axes)
Acceleration	0.7G
CNC Control	MAZATROL SmoothAi CNC
Machine Dimensions	4,930 x 3,430 x 2,968 mm (194.1 x 135.0 x 116.9 in)
Coolant Capacity	1,100 L (290 gal)

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

145 tools standard, listed as expandable to 505, on a machine with a 350 mm (13.78 in) maximum workpiece diameter
Listed AWC capacity of 32 workpieces, expandable to 40, for long unattended runs of small parts
Listed rapids of 60 m/min (2,362 ipm) on X, Y and Z with 0.7G acceleration
Listed spindle choices run from the 12,000 RPM standard unit to 18K, 25K and 30K RPM options

Limitations

Table load is listed at 65 kg (143 lb) including the work holder, which rules out anything but small parts
Not in Mazak's current lineup under this name, so the listed figures may describe an older configuration than the VARIAXIS i-300 AWC
Listed machine dimensions of 4,930 x 3,430 x 2,968 mm (194.1 x 135.0 x 116.9 in) are large for the size of part it machines
Standard torque is listed at 72 Nm (53 ft-lb) at 40% ED; the 134 Nm (99 ft-lb) high-torque spindle is an option

Best For

Small 5-axis parts within 350 mm (13.78 in) diameter and 315 mm (12.40 in) height High-mix work that keeps many tools loaded, with 145 tools as standard Unattended production from the listed 32-workpiece AWC

Frequently Asked Questions

01 Is the VARIAXIS i-300 still a current Mazak model?

Mazak's current lineup does not show a machine under the plain VARIAXIS i-300 name, so it may be an older designation. The closest current model is the VARIAXIS i-300 AWC, whose table gives 14 in (356 mm), 22 in (559 mm) and 20 in (508 mm) of X, Y and Z travel and a 143 lb (65 kg) table load.

02 What size part fits the VARIAXIS i-300?

The listed maximum workpiece is 350 mm (13.78 in) in diameter and 315 mm (12.40 in) high. Table load is listed at 65 kg (143 lb) including the work holder, so a heavy vise or fixture leaves little for the part. Listed travels are 350 mm (13.78 in), 550 mm (21.65 in) and 510 mm (20.08 in).

03 What spindle do the listed figures show?

A built-in motor spindle of 12,000 RPM with a BIG-PLUS BT40 taper, rated 22 kW / 30 hp at 40% ED and 15 kW continuous, with 72 Nm (53 ft-lb) at 40% ED. A high-torque option is listed at 35 kW / 47 hp and 134 Nm (99 ft-lb), and 18K, 25K and 30K RPM spindles are listed as options.

04 How many tools and workpieces can it hold?

The listed magazine holds 145 tools as standard and is expandable to 505. The listed AWC capacity is 32 workpieces, expandable to 40. The current VARIAXIS i-300 AWC table also gives 145 tools.