BNJ-42SY2/51SY2

2-spindle 2-turret Turning Center

Model BNJ-42SY2/51SY2 features a uniquely configured back-working turret and a R-spindle traversable on both X- & Y-axis slides, providing high level of turning operation in a single complete setup from bar stock. The availability of greater variation in simultaneous front-and-back processing with Y-axis control speed up the cutting cycle by approximately 35% compared to conventional machines with two spindles and one turret.

Tooling
Specifications

Miyano BNJ-51SY2

Tooling area
		Main components and movements
Overlap machining by main turret and R-spindle

Cutting by back-working

Machine specifications
Item			BNJ-42SY2	BNJ-51SY2
Power chuck	L/R spindle			6"/5" oil-hydraulic
Max. bar capacity	L spindle			51 mm
	R spindle			42 mm
Max. turning length				100 mm
Main spindle speed range	L spindle			50~5,000 min^–1
	R spindle			67~7,000 min^–1
Main spindle motor	L spindle			11/7.5 kW
	R spindle			5.5/3.7 kW
Turret tool stations	L turret			12 St. Turret
	R turret			6 St. Segmental turret
Max. No. of revolving tools	L/R turret			12/6
Turret slide travel	L turret	X1-axis		165 mm
		Z1-axis		246 mm
		Y1-axis		±40 mm
	R spindle	X2-axis		70 mm
		Z2-axis		525 mm
Tool shank size	L&R turret			Sq. 3/4"
Tool hole diameter	L&R turret			∅ 1"
Max. No. of revolving tool stations	L turret			12
Tool spindle speed range				0~6,000 min^–1
Machine weight				5,200 kg