Okuma LB3000 EX II

Est. $130,000 - $200,000 Updated 2026-10-03

Key Specifications

Max Spindle

5,000 RPM (standard bore); 4,200 RPM (big bore)

Spindle Taper

A2-8

Tool Capacity

12-station turret

Weight

4,800 kg (10,582 lb)

Rapid Traverse

25 m/min X, 30 m/min Z

Spindle Power

22 kW (30 hp)

How much does the Okuma LB3000 EX II cost?

Estimated price range

Est.$130,000 - $200,000

Our best estimate for a cnc lathes / turning center in this class — not a quote from Okuma. Configuration moves it a long way.

Overview

The listed figures for the Okuma LB3000 EX II describe a 254 mm (10 in) chuck turning center sold as a set of configurations more than as one fixed machine. The spindle is 22 kW (30 hp) and comes in two bores: the standard bore runs to 5,000 RPM and the big bore to 4,200 RPM. Bar capacity is listed as 76 mm (3 in).

Bed length is the second choice. Maximum machining length is listed as 500, with 1,000 and 1,300 in brackets as options and no unit on the row. Turning diameter appears twice, as 410 and as 413 mm (16.3 in), and the spindle nose appears as JIS A2-6 on one row and A2-8 on another. With two bores on offer, check which nose and which diameter apply to the machine in front of you.

The turret has 12 stations. Live tooling and a sub-spindle are both listed as optional, so a given machine may be turning-only or may also mill. Where live tooling is fitted, the listed speed is 6,000 RPM with the BMT turret, and the Y-axis travel of ±55 mm (2.17 in) applies to MY/MYW models only.

Thermo-Friendly Concept and the anti-crash system are listed as standard, and the control is the Okuma OSP-P300L. The table also gives positioning accuracy of ±0.004 mm, repeatability of ±0.002 mm, rapids of 25 m/min in X and 30 m/min in Z, and a weight of 4,800 kg (10,582 lb). Because options change so much on this model, read the build sheet of the actual machine before relying on any optional figure.

Full Specifications

Parameter	Value
Max Spindle Speed	5,000 RPM (standard bore); 4,200 RPM (big bore)
Spindle Motor Power	22 kW (30 hp)
Spindle Taper	A2-8
Chuck Size	254 mm (10 in)
Bar Capacity	76 mm (3 in)
Tool Capacity	12-station turret
Y Axis Travel	±55 mm (2.17 in) (MY/MYW models)
Live Tooling Speed	6,000 RPM (BMT turret)
Rapid Traverse Rate	25 m/min X, 30 m/min Z
Positioning Accuracy	±0.004 mm
Repeatability	±0.002 mm
Machine Weight	4,800 kg (10,582 lb)
CNC Control	Okuma OSP-P300L
Speed Range	45~5,000
Rapid Traverse X Z	25/30
Standard Power	22/15
Max Machining Diameter	410
Max Machining Length	500 [1,000; 1,300]
Spindle Nose Type	JIS A2-6
Max Turning Diameter	413 mm (16.3 in)
Turret Stations	12-position
Live Tooling	Optional
Thermo Friendly Concept	Standard
Anti Crash System	Standard
Sub Spindle	Optional

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

22 kW (30 hp) spindle with a choice of standard bore at 5,000 RPM or big bore at 4,200 RPM
Three machining lengths are listed: 500, with 1,000 and 1,300 as options
Thermo-Friendly Concept and the anti-crash system are listed as standard
Listed positioning accuracy of ±0.004 mm and repeatability of ±0.002 mm
76 mm (3 in) bar capacity with a 254 mm (10 in) chuck

Limitations

Live tooling and the sub-spindle are optional, so a given machine may have neither
Y-axis travel of ±55 mm (2.17 in) applies to MY/MYW models only
The big bore spindle is limited to 4,200 RPM
The listed rows give two spindle nose sizes and two turning diameters, which need confirming on the machine

Best For

Chuck and bar work from stock up to 76 mm (3 in) Shaft turning on machines with the 1,000 or 1,300 length option Small-diameter work at up to 5,000 RPM with the standard bore Turn-mill parts on machines fitted with the optional live tooling

Frequently Asked Questions

01 What is the difference between the standard bore and big bore LB3000 EX II?

Speed, according to the listed figures: the standard bore spindle runs to 5,000 RPM and the big bore to 4,200 RPM. Spindle power is listed as 22 kW (30 hp) and bar capacity as 76 mm (3 in), without saying which bore that capacity belongs to.

02 Does the LB3000 EX II have live tooling and a Y axis?

Live tooling is listed as optional, with a speed of 6,000 RPM on the BMT turret. Y-axis travel of ±55 mm (2.17 in) is listed for MY/MYW models only. A sub-spindle is also optional, so check what the individual machine was built with.

03 What machining lengths does the LB3000 EX II come in?

The table lists a maximum machining length of 500, with 1,000 and 1,300 shown in brackets as options. The row carries no unit. The 12-station turret and the 22 kW (30 hp) spindle are listed without reference to length.

04 What accuracy is listed for the LB3000 EX II?

The listed positioning accuracy is ±0.004 mm and the listed repeatability is ±0.002 mm. Thermo-Friendly Concept is listed as standard. For a used machine, treat these as as-built figures and ask for a recent inspection report.

05 How does the LB3000 EX II differ from the LB3000 EX III?

In the listed figures, the LB3000 EX III runs the OSP-P500 control and weighs 5,000 kg (11,023 lb), against the Okuma OSP-P300L and 4,800 kg (10,582 lb) for the LB3000 EX II. Both are listed with 22 kW (30 hp) and rapids of 25 m/min in X and 30 m/min in Z.