Okuma LB3000 EX III

Est. $135,000 - $210,000 Specs verified 2026-10-03 · okuma.com Updated 2026-10-03

Image: d30jruhmdicmo0.cloudfront.net, Okuma

Key Specifications

Max Spindle

45~5,000 min⁻¹

Rapid Traverse

25 m/min X, 30 m/min Z

Spindle Power

22 kW (30 hp)

machine weight

5,000 kg (11,023 lb)

control

OSP-P500

speed range

45~5,000

How much does the Okuma LB3000 EX III cost?

Estimated price range

Est.$135,000 - $210,000

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 Okuma LB3000 EX III is a turning center with a 410 mm (16.14 in) maximum machining diameter, a JIS A2-6 spindle nose and a 22/15 kW (30/20 hp) spindle, run by Okuma's OSP-P500 control. Machining length is 500 mm (19.69 in) as standard, and Okuma shows 1,000 mm (39.37 in) in brackets as the option.

That length choice is the main decision on this model. The 500 mm machine is a chucker and bar machine. The 1,000 mm version makes it a shaft lathe with the same spindle and the same diameter. In both cases the spindle is rated 22 kW (30 hp) for 30 min and 15 kW (20 hp) continuous, across a speed range of 45 to 5,000 min⁻¹. A 5,000 min⁻¹ top speed on an A2-6 nose keeps surface speed up on small and medium diameters, and a 45 min⁻¹ floor leaves room for facing large diameters at a controlled speed.

Rapid traverse is 25 m/min in X and 30 m/min in Z (984/1,181 ipm). The machine weighs 5,000 kg (11,023 lb), which is the figure to give the rigger and to check against the floor.

Inside the LB range, the LB2500 EX II lists the same 410 mm (16.14 in) diameter, JIS A2-6 nose and 22/15 kW (30/20 hp). The LB4000 EX III is the next step up in size, with 480 mm (18.90 in) of diameter, 750 mm (29.53 in) of length, a JIS A2-8 nose and 30/22 kW (40/30 hp) as standard.

Full Specifications

Parameter	Value
Max Spindle Speed	45~5,000 min⁻¹
Spindle Motor Power	22 kW (30 hp)
Rapid Traverse Rate	25 m/min X, 30 m/min Z
Machine Weight	5,000 kg (11,023 lb)
CNC Control	OSP-P500
Speed Range	45~5,000
Rapid Traverse X Z	25/30 m/min (984/1,181 ipm)
Standard Power	22/15
Max Machining Diameter	410 mm (16.14 in)
Max Machining Length	500 [1,000] mm (19.69 [39.37] in)
Spindle Nose Type	JIS A2-6
Standard Power 30 Min Cont	22/15 kW (30/20 hp)

Specifications sourced from okuma.com — verified 2026-10-03

Strengths & Limitations

Strengths

Spindle rated 22 kW (30 hp) for 30 min and 15 kW (20 hp) continuous on a JIS A2-6 nose
Speed range of 45 to 5,000 min⁻¹
Machining length of 500 mm (19.69 in), or 1,000 mm (39.37 in) as the listed option
Rapid traverse of 25 m/min in X and 30 m/min in Z (984/1,181 ipm)
Runs Okuma's OSP-P500 control

Limitations

The 1,000 mm (39.37 in) machining length is an option; the standard machine is 500 mm (19.69 in)
Maximum machining diameter is 410 mm (16.14 in), where the LB4000 EX III reaches 480 mm (18.90 in)
The spindle nose is JIS A2-6; the LB4000 EX III starts at JIS A2-8 for larger chucks
Okuma's headline rows list no chuck size, bar capacity or turret station count for this model

Best For

Chuck work up to 410 mm (16.14 in) in diameter Shaft turning on the optional 1,000 mm (39.37 in) length Small and medium diameters that need up to 5,000 min⁻¹ Steel turning within 15 kW (20 hp) continuous

Frequently Asked Questions

01 What are the machining diameter and length of the LB3000 EX III?

Maximum machining diameter is 410 mm (16.14 in). Maximum machining length is 500 mm (19.69 in) on the standard machine, with 1,000 mm (39.37 in) listed as an option.

02 What is the LB3000 EX III spindle rated at?

22 kW (30 hp) for 30 min and 15 kW (20 hp) continuous, with a speed range of 45 to 5,000 min⁻¹. The spindle nose is JIS A2-6.

03 Which control does the LB3000 EX III use, and how heavy is it?

The control is Okuma's OSP-P500. Machine weight is 5,000 kg (11,023 lb), and rapid traverse is 25 m/min in X and 30 m/min in Z (984/1,181 ipm).

04 How does the LB3000 EX III compare with the LB4000 EX III?

The LB4000 EX III is the larger machine: 480 mm (18.90 in) of turning diameter, 750 mm (29.53 in) of length, a JIS A2-8 nose and 30/22 kW (40/30 hp) as standard, with 30/30 m/min rapids. The LB3000 EX III has a 410 mm (16.14 in) diameter, a JIS A2-6 nose and a 22/15 kW (30/20 hp) spindle that runs to 5,000 min⁻¹.