The ultimate rigidity for extreme axis heavy duty vertical turning in harsh conditions
TAC Series is a higher class vertical turning center developed for heavy duty machining of hard materials with the finest machining accuracy. This machine series employs an ram size of 200mmx 200mm which makes it possible for high rigidity and the turning tool holder for ATC operation is based on HOMMA original design employing curvic coupling and hydraulic actuator which allows for accurate repeatability.
Item TAC-8F TAC-12 TAC-12F TAC-16 TAC-16F Table Diameter 810mm 1,260mm 1,260mm 1,600mm 1,600mm Max Swing 1,100mm 1,600mm 1,600mm 2,000mm 2,000mm Max Turning Diameter 1,100mm 1,600mm 1,600mm 2,000mm 2,000mm Max Turning Height 650mm 1,200mm 900mm 1,600mm 1,000mm Max Table Load 3,000kg 8,000kg 8,000kg 10,000kg 10,000kg Table Drive Motor AC 30/37 kW AC 37/45 kW AC 37/45 kW AC 45/55 kW AC 45/55 kW Max Table Torque 6,350 Nm 12,390Nm 12,390Nm 18,450Nm 18,450Nm Tool Head Vertical Travel 600mm 900mm 900mm 900mm 900mm Tool Head Horizontal Travel -150+800mm -50+1,050mm -150+1,050mm -150+1,250mm -150+1,250mm Ram Cross Section 200 x 200mm 200 x 200mm 200 x 200mm 200 x 200mm 200 x 200mm Tool Shank 40 x 40mm 40 x 40mm 40 x 40mm 40 x 40mm 40 x 40mm Cutting Feed Rate 1~3000mm/min 1~3000mm/min 1~3000mm/min 1~3000mm/min 1~3000mm/min Table Speed 5-500 RPM 1-312 RPM 1-312 RPM 1-256 RPM 1-256 RPM Cross Rail Vertical Feed Fixed 250mm x 2 steps Fixed 250mm x 3 steps Fixed Machine Height 4,000mm 5,100mm 4,500mm 5,500mm 5,000mm Floor Space 5,000 x 4,000mm 6,000 x 4,500mm 6,000 x 4,500mm 7,000 x 5,000mm 7,000 x 5,000mm Weight 18,000KG 22,200KG 20,000KG 28,800KG 26,5000KG
- Thrust Roller Bearing – The large diameter thrust roller bearings are used for the table support with the combination of the AC spindle motor to give a stable table rotation at high speeds or with heavy loads.
- Ram Head – As the RAM is finished with fine grinding with Turcite B guideways, a superior rigidity is achieved. The feed drive movement employs a double nut type ball screw for high accuracy positioning.
- Turning Tool Holder – The turning tool holder is pulled with the T-Bolt using a special powerful hydraulic actuator assembled at the ram top and it gives an accurate positioning with the curvic coupling.