The RTBA rotary indexing table is a two-station heavy-duty fixture designed for milling operations that require repeatable positioning and high rotational rigidity. Its cast-iron construction and manual indexing system place it in general-purpose machining applications rather than fully automated CNC environments. The following assessment examines its technical parameters and application limits based on available specifications.
The unit is built around a heavy cast-iron body, a material widely used in machine tool fixtures for its vibration-damping properties. The design prioritizes stiffness and stable clamping during milling, with a spindle that carries 5-degree indexing marks and a 24-position indexing ring.
The locking system allows the spindle to be secured at any angle without engaging the indexing pin, according to the specifications. This provides flexibility for non-standard angles while retaining the standard indexing positions for repetitive work. The fixture is intended for milling machines or machining centers fitted with T-slotted tables and supports both wet and dry machining conditions.
- Indexing accuracy: 5-degree spindle markings and a 24-position indexing ring support standardized angular positioning.
- Locking system: Non-deforming spindle lock permits arbitrary-angle clamping without the indexing pin.
- Compatibility: Designed for T-slotted milling tables and compatible with wet or dry machining environments.
The published specifications identify a heavy cast-iron body and a manual three-jaw chuck as standard equipment. The table below summarizes the main technical data provided for the RTBA unit.
| Specification | Details |
|---|---|
| Body material | Heavy cast iron |
| Indexing ring | 24-position indexing |
| Spindle scale | 5-degree markings |
| Fixture configuration | Three-jaw manual chuck, including key |
The two-station design is intended to improve handling efficiency during repeated milling cycles, although the manual three-jaw chuck requires operator intervention. Its simple structure and low maintenance requirements make it suitable for workshops where automation is limited but clamping rigidity is important.
Buyers evaluating the fixture should focus on the stability of the spindle locking mechanism, particularly for heavy-cutting operations where vibration could affect positional accuracy. Installation requires a milling machine or machining center with a T-slotted table; the table slot dimensions and load capacity should be checked against the fixture base before mounting.
Because indexing depends on manual scale readings and the indexing ring, the RTBA is primarily suited to general machining tasks. Applications requiring high levels of automated precision should assess compatibility with existing control systems and production tolerances before selection.
