Features：
● Genuine CNC piston lathe for camless oval turning.
● Piston diameter range 50-200 mm, piston length up to 200 mm.
● 6 mm super big ovality amount.
●Vertical structure with symmetrical spindle structure, thermal deformation has little effect on the consistency of machining accuracy, effectively eliminating the dimensional error caused by the temperature rise of the spindle.
● Our lathe is equipped with vertical piston clamping fixture, accurate and close contact between the piston stop and the fixture’s reference plane ensures stable machining accuracy and convenient clamping.
● Lathe bed is designed with high seismic performance, smooth chip removal performance, compact size and high rigidity, especially suitable for high-strength automated processing of large and medium batch pistons.
●The processes of finish grooving, finish top surface turning, finish skirt oval turning can be completed simultaneously, avoiding secondary clamping of pistons, effectively improving pistons processing accuracy, reducing logistics time for pistons transition, and improving processing efficiency.
● X1, Z1, X2, Z2, W2 and C, total of 6 coordinate axes.
● 5.5kW high-power and high-torque servo main motor.
● Linear motor with high-acceleration and high-frequency cutting is used.
Parameter：
| Item | Unit | VPL15 | VPL20 | |
| Capacities | Max. piston diameter | mm | φ150 | φ200 |
| Max. piston length | mm | 160 | 200 | |
| Max. pison ovality amount | mm | 6 | 6 | |
| Spindle | Max. spindle speed | r/min | 4000 | 3000 |
| Spindle nose type | – | A2-6 | A2-6 | |
| Main motor power | kW | 5.5 | 5.5 | |
| Fixture | Fixture type | – | hydraulic type | pneumatic type |
| Toolpost | Toolpost type | – | Gang tool type | Gang tool type |
| Tool quantity | pcs | 5 | 5 | |
| X1 axis | X1-axis stroke | mm | 150 | 115 |
| X1-axis servo motor power | kW | 1.4 | 0.9 | |
| Rapid traverse speed of X1-axis | m/min | 12 | 12 | |
| X2 axis/ Ovality generator | X2-axis stroke | mm | 16 | 15 |
| X2-axis linear motor power | kW | 1.44 | 1.5 | |
| Rapid traverse speed of X2-axis | m/min | 12 | 12 | |
| Z axis | Z-axis stroke | mm | 280 | 350 |
| Z-axis servo motor power | kW | 3 | 1.5 | |
| Rapid traverse speed of Z-axis | m/min | 12 | 12 | |
| Tailstock | Tailstock stroke | mm | 260 | 350 |
| Accuracy | Repeat positioning accuracy of X2-axis | mm | ± 0.0005 | ± 0.001 |
| Positioning accuracy of X2-axis | mm | ± 0.001 | ± 0.005 | |
| Positioning accuracy of C-axis | ° | 0.001 | 0.003 | |
| Others | CNC system | – | Fanuc 31i | COPLEY+piston curved surface control software |
| Length*Width*Height | mm | 1300*2400*2500 | 2800*1600*2500 | |
| Net weight | kg | 3500 | 5000 |
