SN 500 Classic service

SN 500 Classic service is provided for a robust universal center lathe originally manufactured by TOS / TRENS Trenčín. The SN 500 Classic belongs among proven machines designed for single‑piece and small‑batch production. Thanks to its massive construction, high machining accuracy and operational reliability, it has secured a strong position not only in standard manufacturing workshops, but also in maintenance and repair facilities.

Although production of the SN 500 Classic lathe has been discontinued, the machine is still widely operated today. Its simple and extremely robust mechanical design ensures high practical value and long service life when supported by professional servicing.

Characteristics of the SN 500 Classic Lathe

The SN 500 Classic is a mechanical universal center lathe designed for machining medium‑sized workpieces. It allows:

machining of external and internal cylindrical surfaces,
machining of conical and spherical surfaces,
cutting of all standard internal and external thread types.

The lathe was also manufactured in a special version with an enlarged spindle bore of up to 105 mm, significantly expanding its technological applicability, especially for shaft‑type components.

Construction, Stability and Performance

The foundation of the SN 500 Classic lathe is a massive cast‑iron bed that ensures high rigidity and a stable cutting process even during demanding machining operations. Thanks to this design, the machine maintains long‑term geometric accuracy and repeatability.

The lathe is powered by a 7.5 kW main motor, which, combined with stable spindle bearing arrangements, enables efficient machining of a wide range of materials.
The spindle B8 (77 mm) or B11 (105 mm) in special versions allows machining of large and heavy workpieces.

Simple Operation and Productive Use

The SN 500 Classic was designed with emphasis on:

simple and ergonomic operation,
easy maintenance directly in the workshop,
low operating costs.

Rapid traverse is available on both axes, significantly increasing operator productivity in single‑piece and small‑batch production. A straightforward threading system allows machining of all common thread types without complex machine adjustments.

Configuration Flexibility and Accessories

A major advantage of the SN 500 Classic lathe is its versatility. The machine was supplied in several versions and can be equipped with a wide range of accessories, including:

various types of steadies and supports,
special clamping devices,
custom technological solutions,
configurations adapted to specific production requirements.

Thanks to this flexibility, the SN 500 Classic can be effectively used in a wide range of applications — from standard production and repair shops to industrial maintenance operations.

SN 500 Classic Service and Spare Parts

One of the greatest strengths of this machine is its long‑term serviceability. We provide comprehensive SN 500 Classic service, including:

service and repair of mechanical components,
supply of SN 500 Classic spare parts,
spindle, gearbox and feed repairs and adjustments,
restoration of machine accuracy and geometry,
preventive maintenance and technical inspections,
professional assessment of machine condition.

Thanks to the robust mechanical design, most repairs are economically efficient and can extend the machine’s operational life by many additional years.

Modernization, Overhauls and Expert Recommendations

For SN 500 Classic lathes, we regularly carry out:

complete machine overhauls,
replacement of worn bearings,
bed and guideway refurbishment,
machine safety upgrades,
expert recommendations on continued operation versus replacement with new equipment.