Citizen Machinery CNC Lathes / Turning Centers

Citizen Miyano BNA-42GTY

Est. $250,000 - $380,000 Specs verified 2026-10-03 · cmj.citizen.co.jp Updated 2026-10-03

Image: cmj.citizen.co.jp, Citizen Machinery

Key Specifications

maximum machining diameter of bar work sp1

42 mm dia.

maximum machining diameter of bar work sp2

34 mm dia.

maximum machining length

100 mm

spindle motor 15min cont sp1

11/7.5 kW

spindle motor 15min cont sp2

5.5/3.7 kW

spindle speed sp1

6,000 rpm

How much does the Citizen Miyano BNA-42GTY cost?

Estimated price range

Est.$250,000 - $380,000

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

Overview

The Miyano BNA-42GTY is a two-spindle lathe for 42 mm dia. bar on the first spindle and 34 mm dia. on the second, with an 8-station turret built on a half-indexing mechanism and rapid rates listed for three axis groups: X1/Y1/Z1, X2/Y2/Z2 and X3/Z3. Maximum machining length is 100 mm.

The first spindle turns to 6,000 rpm on a motor rated 11/7.5 kW (15min/cont.); the second runs to 5,000 rpm on 5.5/3.7 kW. With half the power at the second spindle, roughing belongs on the first, and the second finishes the cut-off end.

The turret takes up to 8 revolving tools, 20 mm Sq. turning tools and drills with 25 mm dia. shanks. The Miyano BNA-42MSY lists its 8-station half-indexing turret as 16 effective positions, which shows what the mechanism adds. Only this turret is described in the table, so ask how the other two axis groups are tooled on a given machine before planning the process around them.

The first group is the fastest: 30 m/min on Z1 and Y1 and 24 m/min on X1. The second group rapids at 20 m/min on Z2 and X2 and 12 m/min on Y2, the third at 20 m/min on Z3 and 12 m/min on X3. The machine weighs 3,750 kg, stands 1,680 mm tall and needs 2,350×1,475 mm of floor.

Full Specifications

Parameter	Value
Maximum Machining Diameter of Bar Work Sp1	42 mm dia.
Maximum Machining Diameter of Bar Work Sp2	34 mm dia.
Maximum Machining Length	100 mm
Spindle Motor 15min Cont Sp1	11/7.5 kW
Spindle Motor 15min Cont Sp2	5.5/3.7 kW
Spindle Speed Sp1	6,000 rpm
Spindle Speed Sp2	5,000 rpm
Type of Turret	8St.Turret(half-indexing mechanism)
Shank Height of Square Turning Tool	20 mm Sq.
Diameter of Drill Shank	25 mm dia.
Rapid Feed Rate Z1 Axis	30 m/min
Rapid Feed Rate X1 Axis	24 m/min
Rapid Feed Rate Y1 Axis	30 m/min
Rapid Feed Rate Z2 Axis	20 m/min
Rapid Feed Rate X2 Axis	20 m/min
Rapid Feed Rate Y2 Axis	12 m/min
Rapid Feed Rate Z3 Axis	20 m/min
Rapid Feed Rate X3 Axis	12 m/min
Maximum Number of Revolving Tools	8
Machine Height	1,680 mm
Floor Space	2,350×1,475 mm
Machine Weight	3,750 kg

Specifications sourced from cmj.citizen.co.jp — verified 2026-10-03

Strengths & Limitations

Strengths

First spindle 11/7.5 kW (15 min/cont.) to 6,000 rpm
8-station turret with a half-indexing mechanism, taking up to 8 revolving tools
Rapids of 30 m/min on Z1 and Y1 and 24 m/min on X1
Second spindle to 5,000 rpm with 5.5/3.7 kW for back-end work
3,750 kg on 2,350×1,475 mm of floor

Limitations

A maximum of 8 revolving tools
Second spindle bar capacity is 34 mm dia., below the first spindle's 42 mm dia.
Maximum machining length is 100 mm
X3 and Y2 rapid at 12 m/min

Best For

Short bar parts up to 42 mm dia. machined on both ends Parts within a 100 mm machining length Jobs needing up to 8 driven tools Cells where 2,350×1,475 mm of floor is the limit

Frequently Asked Questions

01 What is the bar capacity of the Miyano BNA-42GTY?

Bar work is listed to 42 mm dia. on the first spindle and 34 mm dia. on the second. Maximum machining length is 100 mm, so the machine is aimed at short parts.

02 How many tools does the turret hold?

It is an 8-station turret with a half-indexing mechanism and up to 8 revolving tools. Turning tools are 20 mm Sq. and drill shanks 25 mm dia. Check how the other axis groups are tooled on the machine you are considering.

03 What are the rapid rates on each axis?

Z1 30 m/min, X1 24 m/min and Y1 30 m/min; Z2 20 m/min, X2 20 m/min and Y2 12 m/min; Z3 20 m/min and X3 12 m/min. The first group is the fastest, so the operations with the most moves belong there.

04 How does the BNA-42GTY compare with the Miyano BNA-42MSY?

The Miyano BNA-42MSY also uses an 8-station half-indexing turret, listed as 16 effective positions, runs revolving tools to 6,000 RPM and weighs 3,000kg. The BNA-42GTY weighs 3,750 kg and lists rapid rates for a third axis group, X3 and Z3.