NABAIC NHR250CNC CNC LATHE

Technical Description

The CNC system features a Siemens SINUMERIK 802C control unit paired with a machining length capacity of 22.05 inches. The SINUMERIK 802C is designed for reliable operation in turning and milling applications, supporting up to 2-axis control with spindle management. It provides high-precision digital control with an RS232 interface for communication with external data storage, enabling upload and download of part programs. The system supports programmable zero offsets, tool compensation, threading with spindle synchronization, and feedrate overrides, facilitating advanced machining operations and fine adjustments for tool paths and speeds. The control unit dimensions measure approximately 420 x 300 x 83 mm, and its operating environment tolerates temperatures from 0 to 55 °C and humidity up to 95% without condensation. Signal outputs include analog +/-10V for setpoint control and digital signals conforming to RS422 levels. The spindle interface outputs true and negated phase signals A, B, and zero pulses with phase offsets of 90º ± 30º, sustaining up to 1.5 MHz output frequencies. Power supply conditions range from 20.4 to 28.8 V DC with a rated current of 1.5 A and a starting current of up to 4 A. The unit supports manual and automatic operation modes with screen-based interface to set feedrates, spindle speeds, and tool offsets. Parameter input and diagnostics allow real-time monitoring and troubleshooting to ensure machining accuracy and safety. This robust, compact system is well-suited for economic machine tools requiring precise CNC control over moderate machining lengths.