SE 520 Numeric service

SE 520 Numeric service is provided for the CNC universal center lathe originally manufactured by TOS / TRENS Trenčín, designed primarily for single‑piece, small‑batch and medium‑batch production of small to medium‑sized components. Thanks to its universal machine concept, the SE 520 NUMERIC is suitable for standard industrial production as well as for training and educational purposes.

Although production of the SE 520 NUMERIC has been discontinued, we continue to provide complete service, spare parts supply, technical support and modernization options to ensure reliable long‑term operation of the machine.

Characteristics of the SE 520 NUMERIC lathe

The SE 520 NUMERIC belongs to the category of CNC universal center lathes and is suitable for machining both simple and geometrically complex flange‑type and shaft‑type workpieces made of metal and plastic materials. Thanks to its flexibility, the machine is widely used in single‑piece production as well as in small and medium production series.

The lathe is also well suited as a training and educational machine for technical secondary schools and universities, where it enables a smooth transition from conventional turning to CNC machining technology.

Manual and automatic CNC operation

The SE 520 NUMERIC allows operation in two working modes:

manual turning using electronic handwheels,
automatic machining in CNC cycles via a modern control system.

This combination significantly expands the application possibilities of the machine in single‑piece production and makes it possible to increase productivity in small‑batch machining without sacrificing flexibility.

Machine design and machining accuracy

The SE 520 NUMERIC is designed with emphasis on long service life, high stability and machining accuracy. Key machine components are stress‑relieved by annealing, ensuring permanent geometric stability and precision throughout the machine’s lifetime.

Belt‑driven spindle transmission reduces vibration transfer that could negatively affect surface finish quality. Bearings with lifetime grease lubrication contribute to low operating costs and nearly maintenance‑free operation.

The machine is also equipped with automatic gear range shifting directly within CNC cycles, increasing operator comfort and production efficiency.

Operation, safety and configuration flexibility

The SE 520 NUMERIC is an ideal solution for users transitioning from conventional universal center lathes to CNC‑controlled machines. It offers easy and comfortable operation while maintaining high technological flexibility.

The machine is equipped with protective enclosures featuring reinforced safety zones to ensure a high level of operator safety. A wide range of available configurations allows the lathe to be tailored to specific technological requirements, including:

hydraulic workpiece clamping,
hydraulically operated tailstock,
driven tools,
wide selection of steadies and clamping plates.

SE 520 Numeric service and spare parts

Even though the SE 520 NUMERIC is no longer in production, we provide comprehensive SE 520 Numeric service, including:

service of mechanical, electrical and CNC components,
supply of SE 520 NUMERIC spare parts (original and alternative),
spindle and drive repairs and adjustments,
CNC control system service and diagnostics,
machine condition diagnostics and technical audits,
preventive and scheduled maintenance.

If original components are no longer available, we propose technically equivalent replacement solutions with a strong focus on safety, accuracy and long service life.