Citizen Miyano BNE-51MSY
Key Specifications
Spindle Power
Max Turn Length
max bar capacity sp1
max bar capacity sp2
main spindle speed
main spindle power
Overview
The Citizen Miyano BNE-51MSY is a dual-spindle, twin-turret CNC turning center with enhanced milling, Y-axis, and independent sub-spindle axis control at the high end of the Miyano 51mm platform. Both spindles accept 51mm bar. Twin 12-station turrets with 2.2 kW (20 Nm) live tools, optional 4.0 kW (25 Nm).
Main spindle: 5,000 RPM, 15/11 kW. Sub-spindle: 5,000 RPM, 7.5/5.5 kW. Dedicated sub-spindle axes (X3: 155mm, Z3: 450mm) enable 3-tool simultaneous cutting. Y-axis +/-40mm on HD1. HD1: X1 195mm, Z1 380mm, Y1 80mm. HD2: X2 195mm, Z2 175mm.
At 8,000 kg, 2,725 x 2,159mm, 2,050mm height. Superimposition control enables 3 simultaneous tools for 40-60% cycle time reduction.
The machine of choice for the most demanding 51mm fixed-headstock parts. Medical, aerospace, and high-volume automotive shops are primary users.
Full Specifications
| Parameter | Value |
|---|---|
| Max Bar Capacity Sp1 | 51 mm (2.0 in) |
| Max Bar Capacity Sp2 | 51 mm (2.0 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 | 7.5 / 5.5 kW (10 / 7.5 hp) |
| Y Axis Stroke | +/-40 mm (80 mm total) |
| Number Of Turrets | 2 (HD1 + HD2) |
| Turret Stations | 12 + 12 (24 total) |
| Max Live Tools | 24 |
| Live Tool Speed | 6,000 RPM |
| Live Tool Power | 2.2 kW / 20 Nm (opt. 4.0 kW / 25 Nm) |
| Hd1 Travels | X1: 195 mm, Z1: 380 mm, Y1: 80 mm |
| Hd2 Travels | X2: 195 mm, Z2: 175 mm |
| Sub Spindle Travels | X3: 155 mm, Z3: 450 mm |
| Machine Weight | 8,000kg |
| Floor Space | 2,725×2,159mm |
| Machine Height | 2,050 mm |
| CNC Control | Mitsubishi M80 |
| Items | BNE-51MSY |
| Maximum Machining Diameter Of Bar Work | SP1 |
| Sp2 | 7.5/5.5kW |
| Maximum Machining Length | 90mm |
| Type Of Turret | HD1 |
| Hd2 | 12 |
| Slide Stroke | HD1 |
| Z1 Axis | 380mm |
| Y1 Axis | 80(±40) mm |
| Z2 Axis | 175mm |
| Z3 Axis | 450mm |
| Shank Height Of Square Turning Tool | 20mm Sq. |
| Tool Hole Diameter | 25mm Dia. |
| Maximum Number Of Revolving Tools | HD1 |
| Main Spindle Speed Range | SP1 & SP2 |
| Spindle Motor Power | SP1 |
| Rivolving Tool Motor | 2.2kw 20Nm 4.0kw 25Nm(OP.) |
| Sliding Headstock Type | A20 |
| Bar Work | BNC42 |
| Turning Machine | BNA42CY |
| High Precision Turning Machines | BNA42SY |
| Multi Station Machining Cell | MC20 III |
| Maximum Machining Diameter Of Bar Work Sp1 | 51mm Dia. |
| Maximum Machining Diameter Of Bar Work Sp2 | 51mm Dia. |
| Type Of Turret Hd1 | 12St.Turret |
| Type Of Turret Hd2 | 12St.Turret |
| Slide Stroke Hd1 | 80(±40) mm |
| Slide Stroke Hd2 | 175mm |
| Slide Stroke Sp2 | 155mm |
| Slide Stroke Sp2z3 Axis | 450mm |
| Maximum Number Of Revolving Tools Hd1 | 12 |
| Maximum Number Of Revolving Tools Hd2 | 12 |
| Main Spindle Speed Range Sp1 Sp2 | 5,000min-1 |
| Spindle Motor Sp1 | 15/11kW |
| Spindle Motor Sp2 | 7.5/5.5kW |
| Inquiries | Feel free to get in touch with us by phone or online if you have any questions or need advice about any of our products or services. |
Specifications sourced from cmj.citizen.co.jp — verified 2026-03-28
Strengths & Limitations
Strengths
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Limitations
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Best For
Frequently Asked Questions
01
New: $280,000 - $380,000
02
M=milling, S=sub-spindle, Y=Y-axis.
03
Independent X3/Z3 axes.
04
MSY has 51mm both spindles, 7.5 kW sub-spindle.
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