TONiC™ encoder series
The TONiC series 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. The TONiC encoder'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.
Additionally, it is available in 2 more application-specific variants:
TONiC UHV brings incremental encoder technology to ultra-high vacuum applications up to 10-10 Torr where high performance in a compact form factor is required.
TONiC FS (Functional Safety) is certified to SIL2 and PLd for Functional Safety applications.
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.
- Partial arc scales are used for measuring a partial arc of rotation by wrapping them around drums, shafts or arcs.
Narrow stainless steel partial arc tape
Scale name | Accuracy | Scale pitch | Coefficient of thermal expansion | Supplied length | Readhead compatibility |
RKLC20-S  | 20 μm: ±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) |
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 | 20 µm | 15.5 ±0.5 µm/m/°C | 52 to 417 mm | TONiC, TONiC UHV |