Okuma LU-S1600

Est. $180,000 - $280,000 Specs verified 2026-10-03 · okuma.com Updated 2026-10-03

Image: okuma.com, Okuma

Key Specifications

Rapid Traverse

20 / 30 m/min (65.62 / 98.43 fpm)

Spindle Power

11/7.5 kW (15/10 hp)

max turning diameter

160 mm (in) (6.30 in)

sub spindle power

7.5/5.5 kW (10/7.5 hp)

spindle nose

JIS A2-6 [140 flat]

chuck size

6 in (165 mm)

How much does the Okuma LU-S1600 cost?

Estimated price range

Est.$180,000 - $280,000

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 LU-S1600 is a small CNC lathe with a main spindle and a sub-spindle, built for parts up to 160 mm (6.30 in) in turning diameter on a 6 in chuck. The main spindle is rated 11/7.5 kW (15/10 hp) and the sub-spindle 7.5/5.5 kW (10/7.5 hp). Both figures are light, and the sub-spindle's higher rating only equals the main spindle's lower one. Put the heavier stock removal in the first operation and leave the back side for finishing.

Spindle speed is 40 to 4,000 rpm. The standard nose is JIS A2-6, with a 140 flat nose in brackets as the option, and rapid traverse is 20 / 30 m/min (65.62 / 98.43 fpm).

The step to the LU3000 EX is a big one: that machine turns 410 mm (16.14 in) and is rated 22/15 kW (30/20 hp), twice the main-spindle rating here. The LU-S1600 is the model to look at when the parts are small enough that a larger frame would be wasted on them.

Full Specifications

Parameter	Value
Max Turning Diameter	160 mm (in) (6.30 in)
Sub Spindle Power	7.5/5.5 kW (10/7.5 hp)
Spindle Nose	JIS A2-6 [140 flat]
Chuck Size	6 in (165 mm)
Rapid Traverse Rate	20 / 30 m/min (65.62 / 98.43 fpm)
Spindle Speed	40–4,000 rpm
Spindle Motor Power	11/7.5 kW (15/10 hp)

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

Strengths & Limitations

Strengths

Main spindle of 11/7.5 kW (15/10 hp) plus a 7.5/5.5 kW (10/7.5 hp) sub-spindle, so both sides of a part can be turned in one cycle
Rapid traverse of 20 / 30 m/min (65.62 / 98.43 fpm)
JIS A2-6 spindle nose as standard, with a 140 flat nose listed as an option

Limitations

Maximum turning diameter is 160 mm (6.30 in); the LU3000 EX reaches 410 mm (16.14 in)
Sub-spindle is rated 7.5/5.5 kW (10/7.5 hp), below the main spindle's 11/7.5 kW (15/10 hp)
Spindle speed tops out at 4,000 rpm, where the LU3000 EX lists 5,000 rpm
No turning length, turret or bar capacity rows in Okuma's headline table

Best For

Small chucked parts up to 160 mm (6.30 in) in diameter Two-operation parts completed across the main and sub-spindle Light to medium cuts within the 11/7.5 kW (15/10 hp) main spindle rating

Frequently Asked Questions

01 How big a part can the LU-S1600 turn?

Maximum turning diameter is 160 mm (6.30 in) and the chuck size is 6 in. Okuma's headline table does not give a turning length or bar capacity for this model, so confirm part length and any bar work against the full specification.

02 What are the spindle ratings on the LU-S1600?

The main spindle is 11/7.5 kW (15/10 hp) and the sub-spindle 7.5/5.5 kW (10/7.5 hp). Spindle speed is 40 to 4,000 rpm. The standard nose is JIS A2-6, with a 140 flat nose listed in brackets as an option.

03 How does the LU-S1600 compare with the LU3000 EX?

It is a much smaller machine. The LU-S1600 turns 160 mm (6.30 in) against 410 mm (16.14 in) on the LU3000 EX, and its main spindle is 11/7.5 kW where the LU3000 EX lists 22/15 kW (30/20 hp). Rapid traverse is 20 / 30 m/min against 25 / 30 m/min (984/1,181 ipm) on the LU3000 EX.