Citizen Miyano ANX-42SYY

$280,000 - $400,000 Updated 2026-03-19

Key Specifications

Max Spindle

6,000min-1

Spindle Power

11/7.5kW（10min/cont.）

max bar capacity

42 mm (1.65 in) both spindles

max machining length

130mm

main spindle speed

6,000 RPM

main spindle power

11/7.5 kW (15/10 hp) built-in motor

Overview

The Citizen Miyano ANX-42SYY is a dual-spindle, twin-turret fixed-headstock CNC lathe with dual Y-axes and built-in spindle motors for high-speed, high-precision production from 42 mm bar stock. The ANX platform represents Citizen's premium approach to compact multi-tasking, with built-in motors on both spindles that eliminate belt-driven vibration for superior surface finish and tighter tolerances.

Both spindles reach 6,000 RPM with 11/7.5 kW (15/10 hp) built-in motors. The built-in motor design shortens acceleration and deceleration times compared to belt-driven spindles, reducing cycle time on parts with frequent spindle speed changes. Both spindles accept 42 mm bar stock, ensuring full-diameter capability for backworking operations without the sub-spindle limitation found on BNA variants.

The twin 12-station turrets provide 24 tool positions, each accepting rotary tools running at 6,000 RPM with 2.2 kW of rotary tool power. The dual Y-axis configuration adds off-center travel on both turrets. Rapid traverse rates of 24 m/min on X1, X2, X3, Z1, and Z2 axes, 18 m/min on Y1 and Y2, and 30 m/min on Z3 provide fast repositioning across all axes. Maximum machining length is 130 mm.

At 6,250 kg with a footprint of 2,650 x 1,645 mm and rated power consumption of 34 kVA, the ANX-42SYY is substantially larger than single-turret BNA variants but delivers correspondingly more capability. LFV chip-breaking technology is available for reliable chip management in difficult materials.

The ANX-42SYY competes in the premium compact twin-turret segment against the Nakamura-Tome WT-150II and similar machines. Its built-in spindle motors and Fanuc control differentiate it from the Mitsubishi-controlled BNA/BND/BNE lineup. High-precision medical components, aerospace fittings, and automotive safety-critical parts where surface finish and concentricity tolerances demand built-in motor stability are the core applications.

Full Specifications

Parameter	Value
Max Bar Capacity	42 mm (1.65 in) both spindles
Max Machining Length	130mm
Main Spindle Speed	6,000 RPM
Main Spindle Power	11/7.5 kW (15/10 hp) built-in motor
Sub Spindle Speed	6,000 RPM
Sub Spindle Power	11/7.5 kW (15/10 hp) built-in motor
Upper Turret Stations	12
Lower Turret Stations	12
Total Tool Positions	24
Max Rotary Tools	24
Live Tool Speed	6,000 RPM
Live Tool Power	2.2 kW
Number Of Y Axes	2 (dual Y)
Rapid Traverse X Z	24 m/min (945 ipm)
Rapid Traverse Y	18 m/min (709 ipm)
Rapid Traverse Z3	30 m/min (1,181 ipm)
Machine Weight	6,250kg
Floor Space	2,650 x 1,645 mm
Power Consumption	34 kVA
Lfv Chip Breaking	Available
CNC Control	Fanuc 31i-B
Model	ANX-42SYY
Standard Machining Diameter	42mm Dia.
Number Of Spindles	2
Max Spindle Speed	6,000min-1
Collet Chuck Type	DIN173E、HAINBUSH、H-S20
Power Chuck Type	5" Powerw chuck
Number Of Tool Posts	2
Type Of Tool Post	12st.Turret
Dimensions Of Tools Used	20mm Sq.
Dimensions Of Tool Post Holes	25mm Dia.
Number Of Installed Rotary Tools	Max.24
Rotating Speed Of Rotary Tools	6,000min-1
Feed Rate	X1, X2, X3 axis
Z1 Z2 Axis	24m/min
Y1 Y2 Axis	18m/min
Z3	30m/min
Spindle Motor Power	11/7.5kW（10min/cont.）
Rotary Tools Motor	2.2kW
Rated Power Consumption	34kVA
Load Operation Average Power	18.4kVA
Required Floor Surface Area	W2,650×D1,645mm
Sliding Headstock Type	A20
Bar Work	BNC42
Turning Machine	BNA42CY
High Precision Turning Machines	BNA42SY
Multi Station Machining Cell	MC20 III
Maximum Machining Length	130mm
Feed Rate X1 X2 X3 Axis	24m/min
Feed Rate Z1 Z2 Axis	24m/min
Feed Rate Y1 Y2 Axis	18m/min
Feed Rate Z3	30m/min
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

Built-in spindle motors on both spindles eliminate belt vibration and reduce acceleration time, delivering superior surface finish and tighter tolerances versus belt-driven competitors
Twin 12-station turrets with 24 total rotary tool positions at 6,000 RPM provide class-leading tooling density with true simultaneous independent machining
Dual Y-axes enable complex off-center machining on both front and back of the part simultaneously, a capability rare in the 42 mm class
Full 42 mm bar capacity on both spindles eliminates the sub-spindle diameter limitation found on BNA variants for complete backworking flexibility
130 mm maximum machining length is 30% longer than the 100 mm on BNA-42 variants, opening the machine to longer components
Fanuc 31i-B control offers broad CAM compatibility and is familiar to the majority of CNC programmers

Limitations

Premium pricing of $280,000+ makes it one of the most expensive options in the 42 mm fixed-headstock class
6,250 kg weight and 2,650 x 1,645 mm footprint is substantially larger than single-turret BNA variants, requiring more floor space and foundation work
Dual Y-axis twin-turret programming is complex and requires experienced multi-path CNC programmers
34 kVA power consumption is significantly higher than simpler BNA variants, impacting operating costs

Best For

High-precision medical implant manufacturers where built-in motor spindles deliver the surface finish and concentricity tolerances that belt-driven machines cannot match Aerospace connector and fitting production requiring true simultaneous dual-turret machining with dual Y-axes for complex angular features Automotive safety-critical component production where surface finish quality and dimensional consistency are paramount Shops standardized on Fanuc controls that want Miyano precision without adopting the Mitsubishi platform used on BNA machines High-volume production where 24 live tool positions and dual-turret simultaneous cutting minimize cycle time on complex parts

Frequently Asked Questions

01 What does a new Citizen Miyano ANX-42SYY cost?

New ANX-42SYY machines typically range from $280,000 to $400,000 depending on tooling, high-pressure coolant, bar feeder, and automation options. The built-in spindle motors and twin 12-station turrets command a significant premium over belt-driven BNA variants.

02 Why are built-in spindle motors better than belt-driven?

Built-in motors eliminate the mechanical connection between motor and spindle, removing belt-induced vibration. They also provide faster acceleration/deceleration since there is no belt inertia. The practical benefit is better surface finish at high RPM, improved concentricity, and reduced cycle time on parts with frequent speed changes.

03 How does the ANX-42SYY compare to the BNA-42GTY?

The GTY offers more total tool positions (up to 45 vs 24) and 3-tool simultaneous cutting. The ANX provides twin 12-station turrets with dual Y-axes and built-in spindle motors. Choose the GTY for maximum tool count; choose the ANX for built-in motor precision and dual Y-axis flexibility.

04 Does the ANX-42SYY support LFV chip-breaking?

Yes, LFV (Low Frequency Vibration) chip-breaking technology is available on the ANX-42SYY. LFV oscillates the tool during cutting to break chips into small, manageable segments, improving reliability in unattended production of stainless steel, titanium, and other difficult-to-chip materials.