Miyano

BNJ-51SY7

Universal Lathe

The best-selling model from the Miyano brand, the BNJ, has been completely redesigned.
Product Video
Technical Data
Brochure
Compare (coming soon)
The casting structure has been redesigned, which improves the machine’s rigidity, accuracy with thermal expansion, and tool life.
The machining area on the back has been expanded, so a chuck with a 51 mm diameter can be mounted on the counter-spindle. As the front and back now have the same diameter, a wider range of workpieces can be machined.
The guide rails are equipped with LFV (Low-Frequency Vibration Cutting) technology. The simultaneous 4-axis machining prevents problems caused by chips, which contributes to more stable production.

About CITIZEN

For over a century, Citizen has defined precision engineering, evolving from a premier horologist into a global leader in CNC machining. Renowned for their Cincom and Miyano lines, Citizen specializes in Swiss-type lathes that deliver unmatched accuracy for complex, small-diameter components. By pioneering technologies like Low Frequency Vibration (LFV), they provide manufacturers in the medical, aerospace, and electronics sectors with the reliability needed to master high-volume, high-tolerance production.

Technical Data & Specification

Dimension (mm)

2.910 x 1.560

Weight (kg)

5.550

Control Unit

Fanuc 0i-TF Plus

Machine capacity

Max. turning dia. (mm)

51

Distance between Spindle (mm)

825

Max. turning length (mm)

120

Max. bar capacity Ø (mm)

52

Chuck size SP1 (mm)

6″

Chuck size SP2 (mm)

5″

Turret no. 1 / HD1

Programmable axis

Z1 / X1 / Y1

Y-axis stroke (mm)

80

No. of tooling stations

12

No. of Index

Rotary tool Power (kW)

2,2

Rotary tool Torque (Nm)

25

Rotary tool Speed (Rpm)

6.000

Main spindle SP1

Spindle power (kW)

15

Spindle torque (Nm)

Spindle Speed (Rpm)

5.000

Back spindle / SP2

Spindle power (kW)

7,5

Spindle torque (Nm)

Spindle Speed (Rpm)

5.000

Machine Life Cycle Services

we support our customers throughout the entire process – from the initial technical consultation to commissioning and long-term support during ongoing operations.

Pre-sales – Technical Consulting & Selection
Sales & Integration – Implementation & Commissioning
After-sales – Service & Long-term Support
Explore

Contact Us

Ready to elevate your production with world-class precision? Our team is here to help you find the perfect machining solution. Reach out today for expert technical support, parts, or a custom quote tailored to your business needs.

Contact