MIYANO BNA-S2/DHY2

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Miyano BNA-S2/DHY2

The BNA series aims to set the new standard for machines for cutting bar stock, based on the concept of “space savings and sophisticated functions.” It offers high performance in compact space, round-the-clock stability and accuracy; and ease of use for fast set-ups and quick changeovers.

The 42S2 enables back machining with its 2 spindles and 1 turret, and combines a high level of basic performance with convenience of use. The S2 model delivers:

  • Increased versatility with the provision of a sub-spindle for pick-off and back machining.
  • Extensive tool range of an 8 station turret with half indexing in combination with multi tool holders.
  • Latest control technology for reduced non-cutting time and improved productivity.

The 42DHY2, with the combination of the Y-axis function incorporated in the main turret (HD1) and the compact 6-station sub-turret (HD2), can achieve further reductions in machining time through overlap processing and other forms of machining performed simultaneously on the main and sub spindles.

All BNA models incorporate the latest control technology for reduced non-cutting time and improved productivity.

Tooling Area

Tooling is much easier for cutting workpieces of complicated shape since several tools can be mounted on the revolving tools and tool holders at one position of turret.

MACHINE SPECIFICATIONS

ITEMBNA-42S2BNA-42DHY2
Maximum bar diameter: SP1∅ 42 mm∅ 42 mm
Maximum bar diameter: SP2∅34 mm (∅ 42 mm / OP)∅34 mm (∅ 42 mm / OP)
Standard machining length100 mm100 mm
Number of spindles22
Spindle speed: SP16,000 min-16,000 min-1
Spindle speed: SP25,000 min-15,000 min-1
Draw tube diameter: SP1∅ 43 mm∅ 43 mm
Draw tube diameter: SP2∅ 30 mm∅ 30 mm
Power chuck size: SP15″5″
Number of turret12
Number of turret stations: HD188
Number of turret stations: HD2—6
Shank size of square turning tool□20 mm□20 mm
Diameter of drill shank∅25 mm∅25 mm
Number of live tools: HD188
Methods of live toolsSingle clutchSingle clutch
Tool spindle speed5,000 min-15,000 min-1
Rapid feed rate: X1 axis20 m / min20 m / min
Rapid feed rate: Z1 axis20 m / min20 m / min
Rapid feed rate: Y1 axis—12 m / min
Rapid feed rate: X2 axis—12 m / min
Rapid feed rate: Z2 axis—12 m / min
Rapid feed rate: B axis20 m / min—
Turret slide stroke: X1 axis135 mm140 mm
Turret slide stroke: Z1 axis235 mm235 mm
Turret slide stroke: Y1 axis—±35 mm
Spindle slide stroke: X2 axis—140 mm
Spindle slide stroke: Z2 axis—310 mm
Spindle slide stroke: B axis310 mm—
Spindle motor: SP17.5 / 5.5 kW (15min / cont)7.5 / 5.5 kW (15min / cont)
Spindle motor: SP25.5 / 3.7 kW (15min / cont)5.5 / 3.7 kW (15min / cont)
Live tool motor2.8 / 1.0 kW (16 Nm)2.8 / 1.0 kW (16 Nm)
Hydraulic pump motor0.75 kW0.75 kW
Lubricating motor0.004 kW0.004 kW
Coolant motor0.18 kW0.18 kW
145 PSI pressure coolant motor1.0 kW1.0 kW
Turret index motor: HD10.75 kW0.75 kW
Turret index motor: HD2—0.75 kW
Input power capacity28 KVA30 KVA
VoltageAC 200 / 220 VAC 200 / 220 V
Fuse capacity100 A100 A
Compressed air supply0.5 Mpa0.5 Mpa
Hydraulic oil tank7 L7 L
Lubricating oil tank2 L2 L
Coolant tank165 L165 L
Machine height1,660 mm1,680 mm
Floor space2150W × 1290D mm2240W × 1450D mm
Machine weight2,800 kg3,000 kg