Spi Z3500 Cmm Ball Stylus 6mm Ruby M2 Thread

Product Description

The SPI Z3500 is a CMM ball stylus designed for use with coordinate measuring machines in dimensional inspection and precision metrology applications. It features a 6 mm ruby ball mounted on an M2 threaded stem with an overall length of 10 mm. Ruby is the standard choice for CMM styli due to its hardness and low wear rate, which supports repeatable contact measurements over high cycle counts. This stylus is installed and qualified by metrology technicians and quality control professionals working in manufacturing, tooling, and inspection environments.

The Z3500 is suited for short-reach measurement tasks where a compact 10 mm overall length is appropriate. The M2 thread is a common interface size found on a wide range of CMM styli racks, extension bars, and probe modules. It is typically used in applications requiring tight tolerances and consistent stylus qualification on touch-trigger and scanning probes.

Key Features

• 6 mm ruby ball for low wear and high repeatability in contact measurement
• M2 thread on both stylus and probe ends for broad interface compatibility
• 10 mm overall length suits compact, short-reach CMM applications
• Ruby point material resists deformation across high measurement cycle counts
• Single-piece unit ready for immediate installation and qualification

Compatibility

Designed as an OEM-style replacement or standard addition for CMM systems using M2 threaded stylus interfaces, compatible with touch-trigger and scanning probe configurations that accept M2 stylus stems.

Installation Notes

CMM styli are installed by metrology technicians or quality engineers familiar with coordinate measuring machine qualification procedures. The stylus must be properly seated and torqued to the probe or stylus module before running a qualification routine to establish the effective ball diameter and center offset. Avoid touching the ruby ball with bare hands, as oils can affect surface contact during measurement. Always re-qualify the stylus after any removal or reinstallation.