Citizen Machinery Mill-Turn / Multi-Tasking Machines

Citizen Miyano BNA-42DHY

Est. $200,000 - $300,000 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 It may be a superseded or older model; the specifications below are as we last recorded them.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-42DHY Mill-Turn Machines

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

Key Specifications

Rapid Traverse

20 m/min (787 ipm)

max bar capacity sp1

42 mm (1.65 in)

max bar capacity sp2

34 mm (1.34 in)

max machining length

100 mm (3.94 in)

main spindle speed

60 - 6,000 RPM

main spindle power

7.5/5.5 kW (10/7.5 hp)

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

Estimated price range

Est.$200,000 - $300,000

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-42DHY is a compact two-spindle, two-turret lathe for 42 mm (1.65 in) bar on the main spindle and 34 mm (1.34 in) on the sub spindle, with an 8-station upper turret, a 6-station lower turret and a 70 mm (+/-35 mm) Y stroke. It is not in Citizen's current lineup, so most buyers will be looking at a used machine.

Only the upper turret is live. All 8 of its stations can take revolving tools, which run 50 - 5,000 RPM on a 2.8/1.0 kW motor; the lower turret's revolving-tool count is listed as 8/---, so it carries stationary tools. In practice that puts every milled flat and cross hole on the upper turret, while the lower turret handles turning, drilling on centre and cut-off support at the sub spindle.

The main spindle turns 60 - 6,000 RPM with 7.5/5.5 kW (10/7.5 hp), the sub spindle 50 - 5,000 RPM with 5.5/3.7 kW (7.5/5 hp). Chucks are 5 inch and 4 inch, collet chucks are the stationary type and both spindle noses are a special flat type. Maximum machining length is 100 mm (3.94 in).

The turrets index in 0.2 sec/station by AC servo motor and curvic coupling. Travels are 140 mm (5.51 in) on X1, 235 mm (9.25 in) on Z1, 140 mm (5.51 in) on X2 and 360 mm (14.17 in) on Z2, with rapids of 20 m/min (787 ipm) on X1, Z1 and Z2 and 12 m/min (472 ipm) on Y and X2. The machine weighs 3,100kg, stands 1,700mm tall on 2,350×1,450mm of floor and runs a Mitsubishi CNC.

Full Specifications

Parameter	Value
Max Bar Capacity Sp1	42 mm (1.65 in)
Max Bar Capacity Sp2	34 mm (1.34 in)
Max Machining Length	100 mm (3.94 in)
Main Spindle Speed	60 - 6,000 RPM
Main Spindle Power	7.5/5.5 kW (10/7.5 hp)
Sub Spindle Speed	50 - 5,000 RPM
Sub Spindle Power	5.5/3.7 kW (7.5/5 hp)
Upper Turret Stations	8
Lower Turret Stations	6
Live Tool Speed	5,000 RPM
Live Tool Power	2.8/1.0 kW
Turret Index Time	0.2 sec/station
Travel X1	140 mm (5.51 in)
Travel Z1	235 mm (9.25 in)
Travel X2	140 mm (5.51 in)
Travel Z2	360 mm (14.17 in)
Y Axis Travel	70 mm (+/-35 mm)
Rapid Traverse Rate	20 m/min (787 ipm)
Machine Weight	3,100kg
Floor Space	2,350×1,450mm
CNC Control	Mitsubishi CNC
Items	BNA-42DHY3
Maximum Machining Length	100mm
Spindle	Spindle Nose
Sp2	6St.Turret
Shank Height of Square Turning Tool	20mm Sq.
Diameter of Drill Shank	25mm Dia.
Turret Indexing Clamp Method	AC Servo motor & curvic coupling
Z1 Axis	235mm
Y Axis	70mm(±35)
X2 Axis	140mm
Z2 Axis	360mm
Indexing Time	0.2Sec./1St.
Revolving Tools	Maximum Number of Revolving Tools
Tool Spindle Speed Range	50 - 5,000min-1
Revolving Tool Motor	2.8/1.0kW
Maximum Machining Diameter of Bar Work Sp1 Sp2	42mm Dia./34mm Dia.
Power Chuck Sp1 Sp2	5"/4"
Collet Chuck Type Sp1 Sp2	Stationary
Spindle Nose Sp1 Sp2	Special Flat Type
Spindle Motor Sp1	7.5/5.5kW
Spindle Motor Sp2	5.5/3.7kW
Spindle Speed Range Sp1	60 - 6,000min-1
Spindle Speed Range Sp2	50 - 5,000min-1
Type of Turret Sp1	8St.Turret
Type of Turret Sp2	6St.Turret
Slide Stroke X1 Axis	140mm
Slide Stroke Z1 Axis	235mm
Slide Stroke Y Axis	70mm(±35)
Slide Stroke X2 Axis	140mm
Slide Stroke Z2 Axis	360mm
Maximum Number of Revolving Tools Sp1 Sp2	8
Machine Height	1,700mm
Live Tool Stations	8 (upper turret)
Rapid Traverse X1 Z1 Z2	20 m/min (787 ipm)
Rapid Traverse Y X2	12 m/min (472 ipm)
Power Chuck Sp1	5 inch
Power Chuck Sp2	4 inch

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

Two turrets: 8 stations upper and 6 lower
All 8 upper stations take revolving tools at 50 - 5,000 RPM on a 2.8/1.0 kW motor
Y stroke of 70 mm (+/-35 mm)
Turret indexing in 0.2 sec/station by AC servo motor and curvic coupling
Compact: 3,100kg on 2,350×1,450mm of floor

Limitations

No revolving tools on the lower turret, so all milling and cross drilling falls to the upper turret
Sub spindle bar capacity is 34 mm (1.34 in) against 42 mm (1.65 in) on the main
Maximum machining length is 100 mm (3.94 in)
Revolving tools top out at 5,000 RPM

Best For

Small bar parts up to 42 mm (1.65 in) finished on both ends Turning-heavy parts with a few milled or cross-drilled features Short parts within a 100 mm (3.94 in) machining length Cells with limited floor space

Frequently Asked Questions

01 Which turret carries live tools on the Miyano BNA-42DHY?

The 8-station upper turret. All 8 of its stations can carry revolving tools, running 50 - 5,000 RPM on a 2.8/1.0 kW motor. The 6-station lower turret is listed without revolving tools.

02 How does it differ from the Miyano BNA-42MSY?

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

03 What are the spindle ratings?

The main spindle runs 60 - 6,000 RPM with 7.5/5.5 kW (10/7.5 hp) and takes 42 mm (1.65 in) bar. The sub spindle runs 50 - 5,000 RPM with 5.5/3.7 kW (7.5/5 hp) and takes 34 mm (1.34 in).

04 What are the travels and rapids?

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