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.

Overlap machining by main turret and R-spindle
Cutting by back-working
[ Main components and movements ]
Product Specifications
| Items | Model Name | BNJ-42SY2 | BNJ-51SY2 | |
| Power chuck | L/R spindle | 6"/5" oil-hydraulic | ||
| Max. bar capacity | L spindle | 51mm | ||
| R spindle | 42mm | |||
| Max. turning length | 100mm | |||
| Main spindle speed range | L spindle | 50~5,000 min-1 | ||
| R spindle | 67~7,000 min-1 | |||
| Main spindle motor | L spindle | 11/7.5kW | ||
| R spindle | 5.5/3.7kW | |||
| Turret tool stations | L turret | 12St. Turret | ||
| R turret | 6St. Segmental turret. | |||
| Max. No. of revolving tools | L/R turret | 12/6 | ||
| Turret slide travel | L turret | X1-axis | 165mm | |
| Z1-axis | 246mm | |||
| Y1-axis | ±40mm | |||
| R spindle | X2-axis | 70mm | ||
| Z2-axis | 525mm | |||
| Tool shank size | L&R turret | Sq. 3/4' | ||
| Tool hole diameter | L&R turret | φ1" | ||
| Max. No. of revolving tool stations | L turret | 12 | ||
| Tool spindle speed range | 0~6,000 min-1 | |||
| Machine weight | Approx. | 5,200kg | ||






