Miyano BNE-51/65MYY High-Rigidity Precision CNC Lathes

Oct 5, 2023

The Miyano BNE-51MYY and BNE-65MYY are CNC lathes designed for high-precision and efficient machining of complex parts. They inherit the renowned characteristics of the BNE series, known for their exceptional rigidity and accuracy.

Here's a closer look at the features and specifications of these Miyano models:

Features:

  • High Rigidity and Precision: The machines boast a solid construction that minimizes deflection during cutting, ensuring precise dimensional tolerances for your workpieces.
  • Twin Y-Axes and Independent X-Axis: This configuration allows for simultaneous left/right and up/down machining, significantly reducing cycle times.
  • Improved Superimposed Machining: The design facilitates efficient machining of features on multiple sides of a workpiece in a single chucking, minimizing setup times and improving productivity.
  • Large Capacity Twin Turrets: Both BNE-51MYY and BNE-65MYY come equipped with dual 12-station turrets, providing ample tool storage for complex machining operations.
  • Excellent Visibility: The redesigned cover features a large window for easy monitoring of the machining process.
  • Enhanced User Interface: The new Human Machine Interface (HMI) with a touch panel simplifies operation and improves overall productivity.

Specifications:

  • Model Variants: BNE-51MYY and BNE-65MYY
  • Maximum Machining Diameter: BNE-51MYY: 51 mm, BNE-65MYY: 65 mm
  • Bar Capacity: BNE-51MYY: 32 mm, BNE-65MYY: 42 mm
  • Spindle Speeds: Variable, up to 5,000 rpm
  • Main Motor Power: Increased by 1.2 to 1.5 times compared to previous models (exact specifications may vary)
  • CNC Control: Mitsubishi M830

The Miyano BNE-51/65MYY series offers a compelling combination of high rigidity, precision machining capabilities, and advanced features for efficient production of complex parts.


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BNE-51MYYBNE-65MYY
Standard parts catcher length195 mm195 mm
Maximum machining diameter51 mm65 mm
Maximum drilling diameter SP1∅ 25 mm∅ 25 mm
Maximum drilling diameter SP2∅ 20 mm∅ 20 mm
Maximum tapping diameter SP1M22 x 2.5M22 x 2.5
Maximum tapping diameter SP2M20 x 2.0M20 x 2.0
Spindles
Number of spindles22
Spindle speed SP1 & SP25,000 rpm
Spindle nose SP1A2-6A2-8
Spindle nose SP2A2-6A2-6
Draw tube Diameter SP1∅ 52∅ 66
Draw tube Dia. SP2∅ 52∅ 52
Type of collet chuck SP1 & SP2Hardinge S22Hardinge S26
Turret
Number of turrets22
Turret stations HD1 & HD212 ST.12 ST.
Shank size of square turning tool¾" Sq.¾" Sq.
Diameter of drill shank1"1"
Rotary tools
Number of installed rotary tools HD1 & HD2Max. 12+12Max. 12+12
Type of rotary toolsDirect tang driveDirect tang drive
Tool spindle speedMax. 6,000 rpmMax. 6,000 rpm
Machining capacities
Max. drilling dia.∅ 16 mm∅ 16 mm
TapM12 x 1.75M12 x 1.75
Feed rate
Rapid feed rate X1 axis20 m/min20 m/min
Rapid feed rate Z1 axis20 m/min20 m/min
Rapid feed rate Y1 axis12 m/min12 m/min
Slide thrust X2 axis18 m/min18 m/min
Slide thrust Z2 axis18 m/min18 m/min
Slide thrust Y2 axis12 m/min12 m/min
Slide thrust X3 axis20 m/min20 m/min
Slide thrust Z3 axis20 m/min20 m/min
Slide stroke X1 axis205 mm205 mm
Slide stroke Z1 axis280 mm280 mm
Slide stroke Y1 axis100 (+60/-40) mm100 (+60/-40) mm
Slide stroke X2 axis205 mm205 mm
Slide stroke Z2 axis175 mm175 mm
Slide stroke X3 axis155 mm155 mm
Motors
Spindle motor SP125 hp (30 min)/20 hp (cont.)25 hp (30 min)/20 hp (cont.)
Spindle motor SP215 hp (30 min)/ 10 hp (cont.)15 hp (30 min)/ 10 hp (cont.)
Rotary tools motor HD1 & HD25.3 hp5.3 hp
Required power source
Power supplyAC 200 ± 10%AC 200 ± 10%
Power supply capacity47 KVA47 KVA
Other Information
Air pressure source0.5 MPa0.5 MPa
Air pressure flowrate113NL/min. (when using air blower for 1 sec. in 3 locations)113NL/min. (when using air blower for 1 sec. in 3 locations)
Hydraulic oil tank capacity4.75 gallons4.75 gallons
Lubricating oil tank capacity1.06 gallons1.06 gallons
Coolant tank capacity92.5 gallons92.5 gallons
Machine height81.5"81.5"
Floor space112.6" W x 86.2" D112.6" W x 86.2" D
Machine weight17,813 lbs.17,924 lbs