Citizen Miyano BNC-51SYY
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 It may be a superseded or older model; the specifications below are as we last recorded them.
Key Specifications
Max Turn Length
max bar capacity
max chuck diameter
max turning diameter
main spindle speed
main spindle power
How much does the Citizen Miyano BNC-51SYY cost?
Estimated price range
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 BNC-51SYY is a twin-spindle turning centre with upper and lower 12-station turrets, each with a Y axis, listed for bar up to 51 mm (2.008 in) and parts up to 100 mm (3.94 in) in turning diameter and 200 mm (7.87 in) long. It is not in Citizen's current lineup, and Citizen's current pages do not cover it, so the figures here are the listed ones.
The listed spindles are well powered for the size class: 11 / 15 kW (15 / 20 HP) on the main spindle and 5.5 / 7.5 kW (7.4 / 10 HP) on the sub-spindle, both to 5,000 RPM. The sub-spindle rating is half the main one, enough for finishing and drilling the back face but not for heavy back-side roughing. Chuck work is listed to approx. 100 mm (3.94 in).
The upper and lower turrets each have +/- 40 mm of Y travel and driven tools to 5,000 RPM. Two Y-axis turrets let off-centre milling and drilling run on both spindles at once, or two tools share the work on the main spindle while the sub-spindle waits for the transfer. With 12 stations on each turret, the tools for both ends of a part can usually be split between them without sharing positions.
The control is listed as FANUC and the weight as approx. 6,500 kg (14,330 lbs). Before buying, confirm the turret configuration, the Y strokes and the exact control version on the machine itself.
Full Specifications
| Parameter | Value |
|---|---|
| Max Bar Capacity | 51 mm (2.008 in) |
| Max Chuck Diameter | Approx. 100 mm (3.94 in) |
| Max Turning Diameter | 100 mm (3.94 in) |
| Max Turning Length | 200 mm (7.87 in) |
| Main Spindle Speed | 5,000 RPM |
| Main Spindle Power | 11 / 15 kW (15 / 20 HP) |
| Sub Spindle Speed | 5,000 RPM |
| Sub Spindle Power | 5.5 / 7.5 kW (7.4 / 10 HP) |
| Upper Turret Tools | 12 stations |
| Lower Turret Tools | 12 stations |
| Y Axis Upper Travel | +/- 40 mm |
| Y Axis Lower Travel | +/- 40 mm |
| Driven Tool Speed | 5,000 RPM |
| CNC Control | FANUC |
| Machine Weight | Approx. 6,500 kg (14,330 lbs) |
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 12-station turrets, upper and lower, each with +/- 40 mm of Y travel
- Main spindle listed at 11 / 15 kW (15 / 20 HP) and 5,000 RPM
- Sub-spindle at 5,000 RPM with 5.5 / 7.5 kW (7.4 / 10 HP) for back-side work in the same cycle
- 51 mm (2.008 in) bar capacity with chuck work to approx. 100 mm (3.94 in)
Limitations
- Driven tools are listed at 5,000 RPM, which limits small-diameter milling and drilling
- Turning length is listed at 200 mm (7.87 in), so long shafts are out of range
- Not covered by Citizen's current pages, so every listed figure needs checking on the machine
Best For
Frequently Asked Questions
01
Two, an upper and a lower turret, each listed with 12 stations and +/- 40 mm of Y travel. Driven tools run to 5,000 RPM, so both turrets can mill and drill off the spindle centreline.
02
The main spindle is listed at 11 / 15 kW (15 / 20 HP) and the sub-spindle at 5.5 / 7.5 kW (7.4 / 10 HP). Both run to 5,000 RPM.
03
Bar up to 51 mm (2.008 in), and chucked work up to approx. 100 mm (3.94 in) in diameter. The maximum turning length is listed as 200 mm (7.87 in).
04
No. It is not in Citizen's current lineup and Citizen's current pages do not cover it. Confirm the control (listed only as FANUC), the turret layout and the weight of approx. 6,500 kg on the machine itself.
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