The Citizen Miyano BNJ-42S is an industrial-grade CNC Lathes & Turning Centers powered by the Mitsubishi M80W dual-path. a top spindle speed of 0 RPM, and a 3-axis kinematic layout. It supports standardized digital factory monitoring via MTConnect.
Citizen Miyano BNJ-42S: 42 mm (1.65 in) bar on both spindles, 12 + 8 station turrets, 6,000 RPM, 590 mm Z2, Mitsubishi M80W, 5,300 kg.
| Standardized Parameters & Ratings | |
|---|---|
| Manufacturer (Brand) | Citizen (Japan) |
| Machine Type | CNC Lathes & Turning Centers |
| CNC Controller System | Mitsubishi M80W dual-path |
| Number of Controlled Axes | 3-Axis Simultaneous / Positioning |
| Spindle Taper Interface | Standard |
| Approx. Machine Weight | 5,300 kg |
| Industrial IoT Protocol | MTConnect ANSI/MTC1.4 Compliant (Ethernet/TCP) |
| Max Bar Capacity Sp1 | 42 mm (1.65 in) |
| Max Bar Capacity Sp2 | 42 mm (1.65 in) |
| Max Machining Length | 100 mm (3.94 in) |
| Main Spindle Speed | 60 - 6,000 RPM |
| Main Spindle Power | 15/11 kW (20/15 hp) |
| Sub Spindle Speed | 50 - 5,000 RPM |
| Sub Spindle Power | 7.5/5.5 kW (10/7.5 hp) |
| Upper Turret Stations | 12 |
| Lower Turret Stations | 8 |
| Upper Turret Live Tool Speed | 6,000 RPM |
| Lower Turret Live Tool Speed | 3,000 RPM |
| Travel X1 | 165 mm (6.50 in) |
| Travel Z1 | 246 mm (9.69 in) |
| Travel X2 | 85 mm (3.35 in) |
| Travel Z2 | 590 mm (23.23 in) |
| Power Chuck Sp1 | H-S20 / DIN173E |
| Power Chuck Sp2 | H-S16 / DIN171E |
| Machine Weight | 5,300 kg |
| Floor Space | 2,840×1,560mm(Without Chip Conveyor) |
| Machine Height | 1,700 mm |
| CNC Control | Mitsubishi M80W dual-path |
| Items | BNJ-42S6 |
| Spindle | Spindle Speed Range |
| Sp2 | JPN, H-S16, DIN171E |
| Hd2 | M10×1.0 |
| Revolving Tools | Maximum Number of Revolving Tools |
| Spindle Speed Range | HD1 |
| Maximum Drilling Diameter | HD1 |
| Maximum Tapping Diameter | HD1 |
| Slide Stroke | Turret Slide Stroke |
| Z1 Axis | 246mm |
| Z2 Axis | 590mm |
| Motors | Spindle Motor |
| Sp2 Cs | 7.5/5.5kw(15min./Cont.) |
| Standard Turning Length Sp1 Sp2 | 100mm |
| Standard Machining Diameter Sp1 Sp2 | 51mm Dia./42mm Dia. |
| Spindle Speed Range Sp1 | 50 - 5,000min-1 |
| Spindle Speed Range Sp2 | 50 - 5,000min-1 |
| Type Of Collet Chuck Sp1 | H-S22, DIN177E |
| Type Of Collet Chuck Sp2 | JPN, H-S16, DIN171E |
| Type Of Power Chuck Sp1 Sp2 | 6"/5" Hollow |
| Type Of Turret Hd1 | 12st. |
| Type Of Turret Hd2 | 8st. |
| Maximum Number Of Revolving Tools Hd1 | Max.12 |
| Maximum Number Of Revolving Tools Hd2 | Max.4 |
| Spindle Speed Range Hd1 | 6,000min-1 |
| Maximum Drilling Diameterhd1 | 13mm Dia. |
| Maximum Drilling Diameterhd2 | 10mm Dia. |
| Maximum Tapping Diameter Hd1 | M12×1.75 |
| Maximum Tapping Diameter Hd2 | M10×1.0 |
| Turret Slide Stroke X1 Axis | 165mm |
| Turret Slide Stroke Z1 Axis | 246mm |
| Spindle Slide Stroke X2 Axis | 85mm |
| Spindle Slide Stroke Z2 Axis | 590mm |
| Spindle Motor Sp1 Cs | 15/11kw(15min./Cont.) |
| Spindle Motor Sp2 Cs | 7.5/5.5kw(15min./Cont.) |
| Spindle Speed Range Hd2 | 3,000min-1 |
| Maximum Drilling Diameter Hd1 | 13mm Dia. |
| Turret Slide Stroke Y Axis | ±40mm |
| Maximum Drilling Diameter Hd2 | 10mm Dia. |
Our best estimate for the Citizen Miyano BNJ-42S is $200,000 - $280,000. This is an estimate for a cnc lathes / turning centers in this class, not a quote from Citizen Machinery; configuration, tooling, automation and installation move the final price substantially. A specific price can be requested at https://machinetoolindex.com/machines/citizen-miyano-bnj-42s#price; the request is passed to Citizen Machinery or an authorised dealer.
It does not appear as a separate model in Citizen's current lineup. The BNJ page now shows the Miyano BNJ-51SY6, which takes 51 mm dia. on SP1 and 42 mm dia. on SP2. Confirm the configuration of any BNJ-42S on the machine itself.
The sub spindle sits on its own slide, with 85 mm (3.35 in) of X2 and 590 mm (23.23 in) of Z2 travel. It runs 50 - 5,000 RPM on a 7.5/5.5 kW (10/7.5 hp) motor and holds H-S16 / DIN171E collets.
The upper turret has 12 stations, with live tools at 6,000 RPM, and the lower turret 8 stations, with live tools at 3,000 RPM. The upper turret travels 165 mm (6.50 in) in X1 and 246 mm (9.69 in) in Z1.
A Mitsubishi M80W dual-path control, so the upper turret and the sub spindle with the lower turret can be programmed as two paths and cut at the same time.
