Citizen Machinery CNC Lathes / Turning Centers

Citizen Miyano BNA-42S

Est. $120,000 - $180,000 Possible older model Specs verified 2026-09-24 · marucit.com Updated 2026-10-03

This model was not found in Citizen Machinery's current lineup when we checked on 2026-10-02 (lineup page). It may be a superseded or older model; the specifications below are as we last recorded them.

Image: citizenmachinery.co.uk, Citizen Machinery

Key Specifications

X Travel

135 mm (5.31 in)

Rapid Traverse

20 m / min

Spindle Power

7.5/5.5 kW / 5.5/3.7 kW

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)

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

Estimated price range

Est.$120,000 - $180,000

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 Citizen Miyano BNA-42S is a compact twin-spindle CNC lathe with a single turret: 42 mm (1.65 in) bar capacity on the main spindle, 34 mm (1.34 in) on the opposed sub-spindle and a maximum machining length of 100 mm (3.94 in). The main spindle runs 60 - 6,000 RPM and the sub-spindle 50 - 5,000 RPM. Citizen no longer lists it in the current lineup.

One turret serves both spindles, so the machine finishes a part on the main side, transfers it, and then cuts the back face with the same turret. That is slower than a two-turret machine for parts with heavy work on both ends, but it is a simple layout for small turned parts where most of the cutting happens on the front. The sub-spindle rides on its own axis with 310 mm (12.20 in) of travel, and the turret strokes are 135 mm (5.31 in) in X and 235 mm (9.25 in) in Z. Rapids are 20 m/min (787 ipm).

Eight turret stations can carry live tools, rated at 5,000 rpm and 2.8 / 1.0 kW (16 Nm), for cross holes and flats on centre. There is no Y axis on this model; the Miyano BNA-42SY5 adds a 12-station Y-axis turret with 140 mm (5.51 in) of X travel and weighs 3,650 kg (8,047 lb). Spindle power is listed as 7.5/5.5 kW for the main spindle and 5.5/3.7 kW for the sub-spindle, and the main spindle takes a 5 inch power chuck.

The BNA-42S is light at 6,173 lb (2,800 kg), with a 2,150 × 1,290 mm (84.6 × 50.8 in) footprint and a height of 1,660 mm. It needs a 28 kVA, 100 A supply and holds 43.5 gal. of coolant. The control is 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
Sub Spindle Speed	50 - 5,000 RPM
Sub Spindle Power	5.5/3.7 kW (7.5/5 hp)
Turret Stations	1
Live Tool Stations	8
Live Tool Speed	5,000 rpm
Live Tool Power	2.8 / 1.0 kW (16 Nm)
X-Axis Travel	135 mm (5.31 in)
Travel Z1	235 mm (9.25 in)
Travel Z2	310 mm (12.20 in)
Rapid Traverse Xz	20 m/min (787 ipm)
Power Chuck Sp1	5 inch
Machine Weight	6,173 lb (2,800 kg)
Floor Space	2,150 x 1,290 mm
Machine Height	1,660 mm
CNC Control	Mitsubishi CNC
Sp2	50 – 5,000min-1
Z Axis	235mm
B Axis	310mm
Bar Capacity	42 mm (1.65 in)
Spindle Bore	43 mm / 30 mm
Chuck Size	5"
Rapid Traverse Rate	20 m / min
Turret Stroke	135 / 235 mm
Sub Spindle Stroke	310 mm (B)
Spindle Motor Power	7.5/5.5 kW / 5.5/3.7 kW
Power Consumption	28 KVA / 100 A
Coolant Capacity	43.5 gal.
Floor Space Required	2,150 × 1,290 mm (84.6 × 50.8 in)

Specifications sourced from marucit.com — verified 2026-09-24

Strengths & Limitations

Strengths

Twin spindles: 42 mm (1.65 in) bar on the main spindle and 34 mm (1.34 in) on the sub-spindle
8 live tool stations at 5,000 rpm and 2.8 / 1.0 kW (16 Nm)
310 mm (12.20 in) of sub-spindle travel for part transfer and back-side work
Light and compact at 6,173 lb (2,800 kg) on a 2,150 × 1,290 mm footprint
Main spindle 60 - 6,000 RPM, sub-spindle 50 - 5,000 RPM

Limitations

One turret serves both spindles, so front and back work cannot overlap
No Y axis, so off-centre holes and milled features need another machine
Maximum machining length is 100 mm (3.94 in)
Live tools are rated at only 16 Nm

Best For

Small turned parts from bar up to 42 mm, finished on both ends Parts with on-centre cross holes and simple flats Short parts up to 100 mm long Shops with limited floor space for a twin-spindle lathe

Frequently Asked Questions

01 Does the Miyano BNA-42S have a sub-spindle?

Yes. The sub-spindle takes parts up to 34 mm (1.34 in), runs 50 - 5,000 RPM on 5.5/3.7 kW (7.5/5 hp) and travels 310 mm (12.20 in) on its own axis. The main spindle takes 42 mm (1.65 in) bar.

02 What is the difference between the BNA-42S and the BNA-42SY5?

The Miyano BNA-42SY5 has a 12-station Y-axis turret, 140 mm (5.51 in) of X travel and weighs 3,650 kg (8,047 lb). The Miyano BNA-42S has one turret without Y, 135 mm (5.31 in) of X travel and weighs 2,800 kg.

03 What live tooling does the BNA-42S have?

Eight live tool stations, rated at 5,000 rpm and 2.8 / 1.0 kW with 16 Nm of torque. Without a Y axis they drill and mill on the spindle centreline or across it, not off-centre.

04 What does the BNA-42S need on site?

A 28 kVA, 100 A electrical supply, 43.5 gal. of coolant and a footprint of 2,150 × 1,290 mm (84.6 × 50.8 in), with 1,660 mm of height. The machine weighs 6,173 lb (2,800 kg).

05 Is the BNA-42S still in production?

It is not in Citizen's current lineup. When looking at a used one, check the spindle bores, listed as 43 mm main and 30 mm sub, and the live tool fit-out against what your parts need.