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OPTiMUM™ diamond styli

High performance scanning for the toughest environments

Why use OPTiMUM diamond coated styli?

OPTiMUM diamond styli offer long lasting scanning performance in demanding applications. The diamond coated spheres maintain their roundness and do not suffer material ‘build-up' or premature wear when scanning a part. Diamond coated styli provide multiple benefits including an increased working life and reduction in recalibration and inspection downtime.

With over 40 years' experience of producing styli for metrology applications, Renishaw has developed OPTiMUM diamond styli to support the increasing need for high speed scanning applications. Ceramic balls are diamond coated to a thickness of approximately 0.03 mm and the balls are then polished in a highly complex process.

Avoid premature stylus wear

Scanning on hard or abrasive surfaces can result in abrasive wear from interaction between the workpiece and stylus ball materials. When using a ruby ball for scanning, minute particles of residue from the workpiece surface can cause fine scratches on the stylus ball and the surface of the workpiece.

The balls on OPTiMUM diamond styli are extremely wear resistant and retain their form after scanning on abrasive surfaces.

No material build-up

Scanning on soft surfaces, such as aluminium, creates material build-up on the stylus ball. When a ruby ball is used to scan aluminium, the two materials are attracted to each other and material is passed from the softer surface to the harder surface. This means that aluminium is deposited on the surface of the ruby ball, changing the shape of the ball and meaning that your stylus will need to be changed frequently.

With OPTiMUM diamond styli, material build-up does not adhere to the ball and any small deposits can simply be wiped off.

Custom design

Designed to order, your diamond coated styli can be made in a variety of thread sizes and stem materials, with ball sizes from 1.5 mm up to 8 mm to suit your specific applications.

OPTiMUM diamond styli are designed and produced in house by Renishaw, ensuring short lead-times and high standards of quality.

All OPTiMUM diamond styli produced for use with the REVO® RSP2 scanning probe are tested by Renishaw to guarantee the REVO system tuning parameters for controlling resonance are valid for the styli.

Contact us to find out more about our custom design service for OPTiMUM diamond styli.