Mazak Nexus 3000

$80,000 - $140,000 Updated 2026-03-13

Key Specifications

Max Spindle

3,000 RPM

Spindle Taper

A2-11

Tool Capacity

12-position turret

Weight

6,500 kg (14,330 lb)

Rapid Traverse

20 m/min X, 20 m/min Z

Spindle Power

30 kW (40 hp)

Overview

The Mazak Nexus 3000 is a heavy-duty CNC turning center built for shops that need to swing larger diameter work without stepping up to a full oil-country lathe. Yamazaki Mazak positioned the Nexus line as their workhorse turning platform through the 2000s, and the 3000 sits at the top of that range with a 12-inch chuck and enough spindle power to handle serious stock removal in steel and cast iron.

Max turning diameter is 460 mm (18.11 in) over a 760 mm (29.9 in) swing, with up to 1,016 mm (40 in) of turning length depending on the bed configuration. The main spindle delivers 30 kW (40 hp) through an A2-11 nose at speeds up to 3,000 RPM. Bar capacity is 91 mm (3.58 in), which opens up larger-diameter bar work that smaller lathes simply cannot handle.

The 12-station turret accepts both OD turning tools and boring bars, and indexing is fast enough to keep cycle times competitive on multi-tool jobs. The box-way construction on the Nexus 3000 gives it an edge in heavy cutting where rigidity matters more than rapid traverse speed. You can feel the difference when hogging material off large forgings or castings compared to linear-guide machines in the same class.

The MAZATROL Fusion 640T control runs the show on most Nexus 3000 units. It handles conversational programming and standard G-code, though it lacks some of the newer SmoothG features like advanced 3D simulation. Operators who have run any MAZATROL control will be up to speed quickly.

The Nexus 3000 competes with the Okuma LB4000 EX, Doosan Puma 3100, and Haas ST-30. It typically slots between the Haas and Okuma on price. Used Nexus 3000 units show up regularly in the $40,000-$70,000 range, making them one of the better values in the used 12-inch lathe market. The Nexus line was eventually succeeded by the Quick Turn series, but plenty of these machines are still cutting chips daily in job shops and production environments. Specs sourced from Mazak Corporation published data.

Full Specifications

Parameter	Value
Max Workpiece Diameter	460 mm (18.11 in)
Max Turning Length	1,016 mm (40 in)
Swing Over Bed	760 mm (29.9 in)
Max Spindle Speed	3,000 RPM
Spindle Motor Power	30 kW (40 hp)
Spindle Taper	A2-11
Chuck Size	305 mm (12 in)
Tool Capacity	12-position turret
X Axis Travel	260 mm (10.24 in)
Z Axis Travel	1,050 mm (41.3 in)
Rapid Traverse Rate	20 m/min X, 20 m/min Z
Bar Capacity	91 mm (3.58 in)
Machine Weight	6,500 kg (14,330 lb)
CNC Control	MAZATROL Fusion 640T

Specifications sourced from mazakusa.com — verified 2026-03-28

Strengths & Limitations

Strengths

Box-way construction provides superior rigidity for heavy cuts in steel, cast iron, and other tough materials where linear-guide machines start to chatter
12-inch chuck and 460 mm max turning diameter handle a wider range of large-diameter work than most mid-size lathes
91 mm bar capacity covers larger bar stock sizes that 8- and 10-inch chuck machines cannot process
30 kW spindle motor delivers enough torque for aggressive roughing without bogging down on interrupted cuts
Excellent used market availability at $40K-$70K makes it one of the best values in 12-inch turning centers
MAZATROL conversational programming cuts setup time on short-run jobs compared to straight G-code programming
Proven platform with decades of field history and well-documented maintenance procedures

Limitations

Box-way design means slower rapid traverse compared to linear-guide competitors like the Haas ST-30, adding cycle time on parts with long non-cutting moves
MAZATROL Fusion 640T control is an older generation lacking the touchscreen interface and advanced simulation of the SmoothG
No live tooling option in the base Nexus 3000 configuration means secondary milling ops still require a separate machine
Machine footprint is larger than some competitors in the same chuck-size class, requiring more floor space

Best For

Job shops running mixed-lot production of medium to large diameter parts in steel and cast iron Oil and gas component work requiring heavy stock removal on forgings and bar stock up to 91 mm diameter Shops looking for a capable 12-inch lathe on a budget through the strong used market Production environments running long-turning-length shaft work up to 40 inches Second-shift or lights-out turning cells paired with a bar feeder for unattended production

Frequently Asked Questions

01 What does a Mazak Nexus 3000 cost?

New pricing was in the $80,000-$140,000 range when the Nexus line was current. Used Nexus 3000 units from 2005-2015 typically sell for $40,000-$70,000 depending on hours, condition, and options. These are strong values in the used 12-inch lathe market.

02 What replaced the Mazak Nexus 3000?

The Quick Turn series effectively replaced the Nexus line. The Quick Turn 300 and Quick Turn 350 cover similar capacity ranges with updated controls (SmoothG), improved rigidity, and more tooling options including live tooling and Y-axis.

03 Is the Nexus 3000 a box-way or linear-guide machine?

Box-way construction on all axes. This gives it an edge in heavy cutting rigidity but means slower rapid traverse rates compared to linear-guide alternatives. For most turning work, the rigidity advantage outweighs the speed penalty.

04 Can I run G-code on the MAZATROL Fusion 640T?

Yes. The Fusion 640T supports both MAZATROL conversational programming and standard EIA/ISO G-code. You can switch between modes or mix both in the same program. Most shops use MAZATROL for simple turned parts and G-code from CAM for complex geometry.

05 How does the Nexus 3000 compare to the Haas ST-30?

The Nexus 3000 has better cutting rigidity from its box-way construction and stronger spindle torque for heavy roughing. The Haas ST-30 is newer technology with faster rapids, a more modern control interface, and a lower purchase price. For heavy cutting in tough materials, the Nexus has an edge. For general-purpose turning with faster cycles, the ST-30 is competitive.