The Citizen Miyano BNE-51SY is an industrial-grade CNC Lathes & Turning Centers powered by the Mitsubishi M80 (Citizen Miyano). a top spindle speed of 6,000 RPM, and a 3-axis kinematic layout. It supports standardized digital factory monitoring via MTConnect.
Citizen Miyano BNE-51SY: listed 51 mm (2.0 in) main and 42 mm sub spindle bar capacity, 12 + 12 turret stations, Y axis, 5,000 RPM. Older model.
| Standardized Parameters & Ratings | |
|---|---|
| Manufacturer (Brand) | Citizen (Japan) |
| Machine Type | CNC Lathes & Turning Centers |
| CNC Controller System | Mitsubishi M80 (Citizen Miyano) |
| Number of Controlled Axes | 3-Axis Simultaneous / Positioning |
| Maximum Spindle Speed | 6,000 RPM |
| Spindle Taper Interface | Standard |
| Approx. Machine Weight | 7,800 kg |
| Industrial IoT Protocol | MTConnect ANSI/MTC1.4 Compliant (Ethernet/TCP) |
| Max Bar Capacity Sp1 | 51 mm (2.0 in) |
| Max Bar Capacity Sp2 | 42 mm (1.65 in) |
| Max Turning Length | 90 mm (3.54 in) |
| Main Spindle Speed | 5,000 RPM |
| Main Spindle Power | 15 / 11 kW (20 / 15 hp) |
| Sub Spindle Speed | 5,000 RPM |
| Sub Spindle Power | 5.5 / 3.7 kW (7.5 / 5 hp) |
| Number Of Turrets | 2 (HD1 + HD2) |
| Turret Stations | 12 + 12 (24 total) |
| Max Live Tools | 24 |
| Live Tool Speed | 6,000 RPM |
| Tool Shank Size | 20 mm square |
| Sub Spindle Travel Z3 | 450 mm (17.72 in) |
| Machine Weight | 7,800 kg (17,196 lb) |
| CNC Control | Mitsubishi M80 (Citizen Miyano) |
| Y Axis Stroke | +/-40 mm (80 mm total) |
| Machine Height | 1,925 mm (75.8 in) |
| Max Machining Diameter | 32 mm Dia. |
| Max Machining Length | GB: 320 mm / 1 chucking, GBL: 2.5D |
| Max Front Drilling Diameter | 12 mm Dia. |
| Max Front Tapping Diameter | M12 |
| Spindle Through Hole Diameter | 39 mm Dia. |
| Max Chuck Diameter Of The Back Spindle | 32 mm Dia. |
| Max Protrusion Length Of The Back Spindle Workpiece | 80 mm |
| Max Protrusion Length | 150 mm |
| Max Drilling Diameter For The Back Spindle | 10 mm Dia. |
| Max Tapping Diameter For The Back Spindle | M10 |
| Gang Rotary Tool | 4 – 6 |
| Max Tapping Diameter | M6 |
| Max Spindle Speed | Max. 6,000 min⁻¹ (Rating: 3,000 min⁻¹) |
| Front Rotary Tool 2 | Max. drilling diameter |
| Number Of Tools To Be Mounted Max | 19 – 30 |
| Gang Turning Tool | 6 |
| Front Drilling Tool | 4 – 9 |
| Tool Size | Gang turning tool |
| Sleeve | 25.4 mm Dia. |
| Chuck And Bushing | Main spindle collet chuck |
| Rotary Tool Collet Chuck | ER11, ER16 |
| Chuck For Drill Sleeves | ER11, ER16 |
| Guide Bushing | FG531-M (FG581-M: 38 mm Dia. spec.) |
| Rapid Feed Rate | All axes (except Y2) |
| Motors | Spindle drive |
| Gang Tool Post Rotary Tool Drive | 1.0 kW |
| Front Rotary Tool Drive 2 | 1.0 kW |
| Coolant Oil | 0.4 kW |
| Lubricating Oil | 0.003 kW |
| Rated Power Consumption | 13.2 KVA |
| Full Load Current | 36 A |
| Main Breaker Capacity | 60 A |
| Air Pressure And Air Flow Rate For Pneumatic Devices | 0.5 MPa, 64.2 NL/min |
| Centre Height | 1,050 mm |
Our best estimate for the Citizen Miyano BNE-51SY is $180,000 - $260,000. 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-bne-51sy#price; the request is passed to Citizen Machinery or an authorised dealer.
Citizen's current product pages do not list it; it may be an earlier generation of the BNE-51SY6. The figures on this page are the listed ones and have not been checked against a Citizen page, so confirm them on the machine you are looking at.
The listed bar capacity is 51 mm (2.0 in) on the main spindle and 42 mm (1.65 in) on the sub spindle, with a maximum turning length of 90 mm (3.54 in). Parts made from full-size bar need a back end the sub spindle can grip.
Two turrets, HD1 and HD2, with 12 + 12 stations (24 total) and up to 24 live tools listed, at 6,000 RPM. Tool shanks are 20 mm square, and the Y-axis stroke is listed as +/-40 mm (80 mm total).
The listed weight is 7,800 kg (17,196 lb) and the machine height 1,925 mm (75.8 in). Plan rigging and a floor that can carry that load, and allow space for a bar feeder and chip handling around the machine.
