Citizen Machinery Mill-Turn / Multi-Tasking Machines

Citizen Miyano BNA-42MSY

Est. $170,000 - $250,000 Possible older model Updated 2026-10-03

This model was not found in Citizen Machinery's current lineup when we checked on 2026-10-03 (lineup page). It may be a superseded or older model; the specifications below are as we last recorded them.

Citizen Miyano BNA-42MSY Mill-Turn Machines

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

Key Specifications

max bar capacity sp1

42 mm (1.65 in)

max bar capacity sp2

34 mm (1.34 in), 42 mm optional

max machining length

100 mm (3.94 in)

main spindle speed

6,000 RPM

main spindle power

11/7.5 kW (15/10 hp)

sub spindle speed

5,000 RPM

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

Estimated price range

Est.$170,000 - $250,000

Our best estimate for a mill-turn / multi-tasking machine in this class — not a quote from Citizen Machinery. Configuration moves it a long way.

Overview

The Miyano BNA-42MSY is a small two-spindle lathe for 42 mm (1.65 in) bar on the main spindle, with an 8-station turret whose half-indexing gives 16 effective positions, all 8 stations live. The sub spindle takes 34 mm (1.34 in) as standard, with 42 mm listed as an option. Citizen's current lineup does not include the BNA-42MSY, so it is normally a used purchase.

The half-indexing turret is the point of this model. Tools can sit between the 8 main stations, which doubles the positions available without a bigger turret. The 8 live stations run to 6,000 RPM, but their drive is rated 1.0 kW (12 Nm), so the milling side is for drilling, tapping and light cuts.

The main spindle turns to 6,000 RPM with 11/7.5 kW (15/10 hp); the sub spindle runs to 5,000 RPM with 5.5/3.7 kW (7.5/5 hp). Travels are 140 mm (5.51 in) on X1, 235 mm (9.25 in) on Z1, 70 mm (+/-35 mm) on Y1, 129 mm (5.08 in) on X2 and 360 mm (14.17 in) on Z2, and the maximum machining length is 100 mm (3.94 in). Rapids are 20 m/min (787 ipm) on X1, Z1 and Z2 and 12 m/min (472 ipm) on Y1 and X2. Tools are 20mm Sq. with 25mm Dia. drill shanks.

The installation is light: 3,000kg, 1,620mm high, 2,388×1,450mm of floor and a 29 kVA supply, with a Mitsubishi CNC. The Miyano BNA-42DHY, at 3,100kg, takes a different route with a second, 6-station lower turret.

Full Specifications

Parameter	Value
Max Bar Capacity Sp1	42 mm (1.65 in)
Max Bar Capacity Sp2	34 mm (1.34 in), 42 mm optional
Max Machining Length	100 mm (3.94 in)
Main Spindle Speed	6,000 RPM
Main Spindle Power	11/7.5 kW (15/10 hp)
Sub Spindle Speed	5,000 RPM
Sub Spindle Power	5.5/3.7 kW (7.5/5 hp)
Turret Stations	8 (half-indexing for 16 effective positions)
Live Tool Stations	8
Live Tool Speed	6,000 RPM
Live Tool Power	1.0 kW (12 Nm)
Travel X1	140 mm (5.51 in)
Travel Z1	235 mm (9.25 in)
Travel Y1	70 mm (+/-35 mm)
Travel X2	129 mm (5.08 in)
Travel Z2	360 mm (14.17 in)
Rapid Traverse Xz	20 m/min (787 ipm)
Rapid Traverse Y	12 m/min (472 ipm)
Machine Weight	3,000kg
Floor Space	2,388×1,450mm
Power Consumption	29 kVA
CNC Control	Mitsubishi CNC
Items	BNA-42MSY2
Sp2	5,000min-1
Maximum Machining Length	100mm
Type of Turret	8St.Turret(half-indexing mechanism)
Shank Height of Square Turning Tool	20mm Sq.
Diameter of Drill Shank	25mm Dia.
Rapid Feed Rate	Z1 axis
X1 Axis	20m/min
Y1 Axis	12m/min
Z2 Axis	20m/min
X2 Axis	12m/min
Maximum Number of Revolving Tool	8
Machine Height	1,620mm
Maximum Machining Diameter of Bar Work Sp1	42mm Dia.
Maximum Machining Diameter of Bar Work Sp2	34mm Dia.
Spindle Motor Sp1	11/7.5kW
Spindle Motor Sp2	5.5/3.7kW
Spindle Speed Sp1	6,000min-1
Spindle Speed Sp2	5,000min-1
Rapid Feed Rate Z1 Axis	20m/min
Rapid Feed Rate X1 Axis	20m/min
Rapid Feed Rate Y1 Axis	12m/min
Rapid Feed Rate Z2 Axis	20m/min
Rapid Feed Rate X2 Axis	12m/min
Rapid Traverse X1 Z1 Z2	20 m/min (787 ipm)
Rapid Traverse Y1 X2	12 m/min (472 ipm)

Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.

Strengths & Limitations

Strengths

8-station turret with half-indexing for 16 effective positions
All 8 turret stations live, running to 6,000 RPM
Main spindle 11/7.5 kW (15/10 hp) to 6,000 RPM
Sub spindle bar capacity of 34 mm (1.34 in), with 42 mm optional
Light installation: 3,000kg, 2,388×1,450mm and 29 kVA

Limitations

Live tool drive rated 1.0 kW (12 Nm), so milling is limited to light cuts
Maximum machining length of 100 mm (3.94 in)
Sub spindle rated 5.5/3.7 kW (7.5/5 hp), half the main spindle's 11/7.5 kW (15/10 hp)
Y1 and X2 rapid at 12 m/min (472 ipm)

Best For

Small bar parts up to 42 mm (1.65 in) machined on both ends Jobs that need more tool positions than 8 stations offer Drilling and tapping with 6,000 RPM live tools Shops with a 29 kVA supply and limited floor

Frequently Asked Questions

01 What does half-indexing do on the Miyano BNA-42MSY?

It lets the 8-station turret stop between its stations, giving 16 effective positions. All 8 stations are live, running to 6,000 RPM, with the live tool drive rated 1.0 kW (12 Nm).

02 Can the sub spindle take 42 mm bar?

As standard the sub spindle takes 34 mm (1.34 in), and 42 mm is listed as an option. The main spindle takes 42 mm (1.65 in). On a used machine, check which sub spindle was fitted before planning full-diameter transfers.

03 How does it differ from the Miyano BNA-42DHY?

The Miyano BNA-42DHY has two turrets, an 8-station upper and a 6-station lower, runs revolving tools to 5,000 RPM and weighs 3,100kg. The BNA-42MSY has an 8-station half-indexing turret with 16 effective positions, live tools to 6,000 RPM and a weight of 3,000kg.

04 What are the travels on the BNA-42MSY?

X1 140 mm (5.51 in), Z1 235 mm (9.25 in), Y1 70 mm (+/-35 mm), X2 129 mm (5.08 in) and Z2 360 mm (14.17 in). Rapids are 20 m/min (787 ipm) on X1, Z1 and Z2 and 12 m/min (472 ipm) on Y1 and X2.