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^-10Torr 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.

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, TONiC FS

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, TONiC FS

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, TONiC FS

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

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)

TONiC

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, TONiC FS

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