Fixed Headstock Type CNC Automatic Lathe

Miyano BNA42SY

SY type with improved performance as a bar-material processing machine

The SY type has a dual-spindle/single turret tool post mechanical configuration, and the base and turret rigidity has been increased to improve basic functions.

  • A surface plate structure, a tradition of the Miyano brand, has been carried over for the bed, an essential element for machining, while both size and weight have been increased in order to improve damping performance.
  • The turret tool post has been equipped with a Y axis to expand the number of installed tools to 12 stations in order to provide the use of a rich assortment of tools, as well as simultaneous left/right machining for superimposed machining and similar processes.
  • The tool holder and rotary tools are the same used for the current BNA Series and the program compatibility is also ensured.

Machine Specifications

Max. machining length100mm
Standard machining diameter (Chuck diameter)SP142mm Dia.
SP234mm Dia.
Turret slide travel distanceX axis140mm
Z axis285mm
Y axis70 (±35)mm
Back spindle slide travel distanceB (Z2) axis360mm
Number of spindles2
Spindle speedSP160 - 6,000min-1
SP250 - 5,000min-1
Collet chuck sizeSP15"
Number of tool posts1
Type of tool post12 ST.
Dimensions of tools used20mm Sq.
Dimensions of tool post holes25mm Dia.
Number of installed rotary toolsMax.12
Rotating speed of rotary tools50 - 5,000min-1
Rapid feed rateX axis20m/min
Z axis20m/min
Y axis12m/min
B (Z2) axis20m/min
Spindle motorSP111/7.5/5.5kW(15%/15min/cont.)
Rotary tools motor2.8/1.0kW
Rated power consumption26kVA
Machine height1,745mm
Required floor surface areaW2,350 × D1,433mm
Machine weight3,880kg
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