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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.

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.
  • 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™

RTLC20 FASTRACK scale

±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

RKLC20 scale

±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

RELM RSLM scale

±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

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

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

RGSZ20-S scale

±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

RKLC-S, RKLR-S

RKLC partial arc scale

20 μm: ±5 μm/m

40 μm: ±15 μm/m


20 µm/40 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

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, 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

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