Star SR-38J

Est. $300,000 - $480,000 Specs verified 2026-10-03 · starcnc.com Updated 2026-10-03

Image: starcnc.com, Star Micronics

Key Specifications

Spindle Power

7.5kW (continuous) / 11kW (10min./25%ED)

max bar capacity

38 mm (1.50 in)

max machining diameter

38 mm (1.50 in)

number of axes

Up to 10 (including Y1, Y2, C1, C2)

y axis stroke

±20 mm

max turning diameter

Ø38mm (1-1/2in)

How much does the Star SR-38J cost?

Estimated price range

Est.$300,000 - $480,000

Our best estimate for a swiss-type lathe in this class — not a quote from Star Micronics. Configuration moves it a long way.

Overview

The Star SR-38J is a Swiss-type lathe with a 38 mm (1.50 in) bar capacity and up to 10 axes, including Y1, Y2, C1 and C2. Its main spindle is rated 7.5kW continuous and 11kW (10min./25%ED), and the Y-axis stroke is ±20 mm.

One row sets this model apart: maximum turning diameter is Ø38mm (1-1/2in) with the guide bush and Ø42mm (1-21/32in) in non-guide-bush form. Running without the bush lets the machine take stock slightly over its nominal bar size. The usual trade is that long, slender parts lose the support the bush gives close to the cut, so the larger diameter suits shorter, stiffer workpieces.

Star's table for this model is short. It gives no spindle speed, rapid traverse, tool count or weight, so those have to come with the quotation. Among the neighbours, the SR-38 is listed with a 7,000 rpm spindle of the same 7.5 kW continuous rating and a weight of 4,300 kg, which indicates the class but is not a figure for the SR-38J.

Full Specifications

Parameter	Value
Max Bar Capacity	38 mm (1.50 in)
Max Machining Diameter	38 mm (1.50 in)
Number of Axes	Up to 10 (including Y1, Y2, C1, C2)
Y Axis Stroke	±20 mm
Max Turning Diameter	Ø38mm (1-1/2in)
Max Turning Diameter Non Guide Bush	Ø42mm (1-21/32in)
Spindle Motor Power	7.5kW (continuous) / 11kW (10min./25%ED)

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

Strengths & Limitations

Strengths

Up to 10 axes including Y1, Y2, C1 and C2
Ø42mm (1-21/32in) maximum turning diameter in non-guide-bush form, above the 38 mm (1.50 in) bar capacity
7.5kW continuous and 11kW (10min./25%ED) main spindle
±20 mm Y-axis stroke for off-centre drilling and milling

Limitations

The published table gives no spindle speed, rapid traverse, tool count or weight
The Ø42mm (1-21/32in) figure applies only without the guide bush; with it the limit is Ø38mm (1-1/2in)
Axis count is stated as 'up to 10', so the count on a given machine depends on how it is equipped

Best For

Bar work up to 38 mm (1.50 in) diameter Short, stiff parts up to Ø42mm (1-21/32in) run without the guide bush Parts with off-centre features within the ±20 mm Y-axis stroke

Frequently Asked Questions

01 Can the SR-38J run without a guide bush?

Yes. Star lists a maximum turning diameter of Ø42mm (1-21/32in) for non-guide-bush operation, against Ø38mm (1-1/2in) otherwise. Without the bush the bar is supported only at the spindle, so that mode is normally used for shorter parts.

02 How many axes does the SR-38J have?

Up to 10, including Y1, Y2, C1 and C2, with a Y-axis stroke of ±20 mm. Because the count is given as an upper limit, ask for the axis list of the specific machine on offer.

03 How powerful is the main spindle of the SR-38J?

7.5kW continuous and 11kW at the 10min./25%ED rating. Star's table for this model does not list a spindle speed or a sub-spindle rating, so request those along with the quotation.