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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 10-10 Torr where high performance in a compact form factor is required.

Website cameo: TONiC readhead

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.

Gold plated tape

Scale name

Accuracy

Scale pitch

Coefficient of
thermal expansion

Scale max length

Readhead compatibility

RGSZ20/RGSN20

RGSZ20-S scale

±15 µm/m

20 µm

Thermally mastered to substrate by use of end clamps

For length >50 m, please contact Renishaw

TONiC, TONiC UHV

Stainless steel tape with track option

Scale name

Accuracy

Scale pitch

Coefficient of
thermal expansion
at 20 °C

Scale max length

Readhead compatibility

RTLC20 with optional FASTRACK™

RTLC20 FASTRACK scale

±5 µm/m

20 µm

10.1 ±0.2 µm/m/°C

10 m

TONiC, TONiC UHV

ZeroMet™ spar 


Scale name

Accuracy

Scale pitch

Coefficient of
thermal expansion
at 20 °C

Scale max length

Readhead compatibility

RELM20/RELE20

RELM RSLM scale

±1 µm for up to 1 m, then ±1 µm/m

20 µm

0.75 ±0.35 µm/m/°C

1.5 m

TONiC, TONiC UHV

Stainless steel spar

Scale name

Accuracy

Scale pitch

Coefficient of
thermal expansion
at 20 °C

Scale max length

Readhead compatibility

RSLM20/RSLE20/RSLC20

RELM RSLM scale

±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

5 m

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/RESD20

RESM-REST scale

±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

REXM scale (scale page)

(≥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