TONiC™ encoder series

What is TONiC?

TONiC is Renishaw's super-compact, non-contact incremental encoder system that offers speeds up to 10 m/s and, when combined with the Ti interface, resolutions down to 1 nm for both linear and rotary applications. TONiC systems are quick and simple to install with wide set-up tolerances and calibration at the push of a button. TONiC's dynamic signal processing gives improved signal stability with ultra-low Sub-Divisional Error of typically <±30 nm to help realise superior motion control performance.

TONiC UHV brings incremental encoder technology to ultra-high vacuum applications up to 10^-10Torr where high performance in a compact form factor is required.

Scale options

Linear scales are used where straight-line position information is needed - usually X, Y or Z axes.
Rotary scales are used for angular position information and the motion control of rotating elements.

Stainless steel tape with track option

Scale name	Accuracy	Scale pitch	Coefficient of thermal expansion at 20 °C	Supplied length	Readhead compatibility
RTLC20 with optional FASTRACK™	±5 µm/m	20 µm	10.1 ±0.2 µm/m/°C	Up to 10 m (>10 m on request)	TONiC, TONiC UHV

Narrow stainless steel tape scale

Scale name	Accuracy	Scale pitch	Coefficient of thermal expansion	Supplied length	Readhead compatibility
RKLC20-S	±5 μm/m	20 µm	Matched to substrate material when scale ends are fixed with end clamps	Up to 20 m (>20 m on request)	TONiC, TONiC UHV

ZeroMet™ spar

Scale name	Accuracy	Scale pitch	Coefficient of thermal expansion at 20 °C	Supplied length	Readhead compatibility
RELM20/RELE20	±1 µm for up to 1 m, then ±1 µm/m	20 µm	0.75 ±0.35 µm/m/°C	Up to 1.5 m	TONiC, TONiC UHV

Stainless steel spar

Scale name	Accuracy	Scale pitch	Coefficient of thermal expansion at 20 °C	Supplied length	Readhead compatibility
RSLM20/RSLE20/RSLC20	±1.5 µm up to 1 m, ±2.25 µm up to 2 m, ±3 µm up to 3 m, ±4 µm up to 5 m	20 µm	10.1 ±0.2 µm/m/°C	Up to 5 m	TONiC, TONiC UHV

Gold plated tape

Scale name	Accuracy	Scale pitch	Coefficient of thermal expansion	Supplied length	Readhead compatibility
RGSZ20/RGSN20	±15 µm/m	20 µm	Thermally mastered to substrate by use of end clamps	Up to 50 m (>50 m contact Renishaw)	TONiC, TONiC UHV

Stainless steel ring

Scale name	Graduation accuracy (depending on ring diameter)	Scale pitch	Coefficient of thermal expansion at 20 °C	Ring diameter	Readhead compatibility
RESM20/REST20	±3.97 to ±0.38 arc seconds	20 µm	15.5 ±0.5 μm/m/°C	52 to 550 mm	TONiC, TONiC UHV

Ultra-high accuracy stainless steel ring

Scale name	Installed accuracy (depending on ring diameter)	Scale pitch	Coefficient of thermal expansion at 20 °C	Ring diameter	Readhead compatibility
REXM20/REXT20	(≥100 mm diameter) ±1 arc second (75 mm diameter) ±1.5 arc seconds (≤57 mm diameter) ±2 arc seconds	20 µm	15.5 ±0.5 µm/m/°C	52 to 417 mm	TONiC, TONiC UHV