Okuma 2SP-2500H
Image: d30jruhmdicmo0.cloudfront.net, Okuma
Key Specifications
Rapid Traverse
Spindle Power
Max Turn Length
max turning diameter
main spindle power
sub spindle power
How much does the Okuma 2SP-2500H cost?
Estimated price range
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 2SP-2500H is a two-spindle lathe proportioned for short, large-diameter chuck work: 410 mm (16.14 in) of maximum turning diameter against only 200 mm (7.87 in) of turning length, on a JIS A2-6 spindle nose.
A diameter twice the length marks it as a machine for flanges, rings, gear blanks and similar parts that are faced, bored and turned on both sides, with the main and sub spindle each taking one side. The spindle speed range is 45–5,000 rpm, wide enough to keep surface speed up on small bores and down on a 410 mm outside diameter. Rapid traverse is 25 m/min (82 fpm).
Spindle power needs one check. The table lists the sub spindle at 15/11 kW (20/15 hp) and gives the same 15/11 kW as the general spindle power figure, while the main spindle row reads 18.5/15 kW (25/20 hp). Confirm the main spindle motor on the quotation. For smaller parts in this format, the 2SP-150H has a 6 in (150 mm) chuck size and 80 mm (3.15 in) of turning length with its loader.
Full Specifications
| Parameter | Value |
|---|---|
| Max Turning Diameter | 410 mm (16.14 in) |
| Max Turning Length | 200 mm (7.87 in) |
| Main Spindle Power | 18.5/15 kW (25/20 hp) |
| Sub Spindle Power | 15/11 kW (20/15 hp) |
| Spindle Nose | JIS A2-6 |
| Rapid Traverse Rate | 25 m/min (82 fpm) |
| Spindle Motor Power | 15/11 kW (20/15 hp) |
| Spindle Speed | 45–5,000 rpm |
Specifications sourced from okuma.com — verified 2026-10-03
Strengths & Limitations
Strengths
- 410 mm (16.14 in) maximum turning diameter on a JIS A2-6 spindle nose
- Spindle speed range of 45–5,000 rpm covers small bores and large outside diameters on one part
- The sub spindle is rated 15/11 kW (20/15 hp), enough for real cuts on the second side
- Rapid traverse of 25 m/min (82 fpm)
Limitations
- Turning length is 200 mm (7.87 in), which rules out shaft work
- The table shows both 18.5/15 kW (25/20 hp) and 15/11 kW (20/15 hp) for spindle power, so the main spindle rating needs confirming
- No chuck size or bar capacity is given in Okuma's headline table
Best For
Frequently Asked Questions
01
Maximum turning diameter is 410 mm (16.14 in) and maximum turning length is 200 mm (7.87 in). The spindle nose is JIS A2-6. The proportions suit short chucked parts; anything that needs tailstock support or more than 200 mm of length is outside what the table offers.
02
The main spindle row lists 18.5/15 kW (25/20 hp) and the sub spindle row 15/11 kW (20/15 hp). A separate general spindle power row also reads 15/11 kW (20/15 hp). Because the rows do not fully agree, ask Okuma to state the motor on each spindle in writing.
03
It is the larger of the two. The 2SP-2500H turns up to 410 mm (16.14 in) in diameter and 200 mm (7.87 in) in length at 45–5,000 rpm. The 2SP-150H has a 6 in (150 mm) chuck size, 80 mm (3.15 in) of turning length with the loader and spindles of 11/7.5 kW (15/10 hp).
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