Skip navigation

Optical encoders scale range

Linear scales

Gold plated tape

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient

Scale max length

Readhead compatibility

RGS

RGS20-S scale

±15 µm/m

20 µm/40 µm

Thermally mastered to substrate by use of end clamps

For length >50 m, please contact Renishaw

RGH22, RGH24, RGH25F, RGH25F UHV, RGH34, RGH41

RGSZ/RGSN

RGSZ20-S scale

As above

20 µm

As above

As above

TONiC, TONiC UHV

 

Glass spar

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient

Scale max length

Readhead compatibility

RCLC

RCLC scale

±3 µm

20 µm/40 µm

~8 µm/m/°C

130 mm

ATOM

RGS40-G

RGS40-G scale

±4.2 µm/m

40 µm

As above

1.01 m

RGH40

Stainless steel tape

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient at 20 °C

Scale max length

Readhead compatibility

RTLF

RTLF20 scale

40 µm (high accuracy): ±5 µm/m
40 μm: ±15 μm/m
20 μm: ±5 μm/m

20 µm/40 µm

10.1 ±0.2 µm/m/°C

10 m

 ATOM

 

Stainless steel tape with track option

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient 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

VIONiCTONiC, TONiC UHV

RTLC40 with optional FASTRACK

RTLC20 FASTRACK scale

±15 µm/m

40 µm

As above10 mQUANTiC

RTLA with optional FASTRACK

RTLA FASTRACK scale

±5 µm/m

30 µm

As above

21 m

RESOLUTE, RESOLUTE UHV, RESOLUTE FS (no FASTRACK)

RTLA50 with optional FASTRACK

RTLA FASTRACK scale

±10 µm/m

50 µmAs above10.02 mEVOLUTE

RTLR40 with optional FASTRACK

RTLR40 FASTRACK scale

±15 µm/m

40 µm

As above 

10 m

 RGH45

ZeroMet™ spar 

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient at 20 °C

Scale max length

Readhead compatibility

RELM/RELE

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

VIONiCTONiC, TONiC UHV, SiGNUM

RELA

RELA scale

As above

30 µm

As above

1.5 m

 

RESOLUTE, RESOLUTE UHV, RESOLUTE FS

Stainless steel spar

Scale name

Accuracy

Scale pitch

Thermal expansion

coefficient at 20 °C

Scale max length

Readhead compatibility

RSLM/RSLE/RSLC

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

VIONiCTONiC, TONiC UHV, SiGNUM

RSLR

RSLR scale

As above

20 µm

As above

5 m

RGH20, RGH20F

RSLA

RELA scale

As above

30 µm

As above

5 m

RESOLUTE, RESOLUTE UHV, RESOLUTE FS

Rotary scales

Stainless steel ring

Scale name

Graduation accuracy (depending on ring diameter)

Scale pitch

Ring diameter

Readhead compatibility

RESR

RESR scale (scale page)

 ±3.97 to ±0.38 arc seconds

20 µm/40 µm

52 to 550 mm

RGH20, RGH20F, RGH40

RESM/REST/RESD

RESM-REST scale (scale page)

As above

20 µm

As above

VIONiCTONiC, TONiC UHV, SiGNUM

RESA

RESA scale (scale page)

As above

30 µm

As above

RESOLUTE, RESOLUTE UHV, RESOLUTE ETR, RESOLUTE FS

 

Ultra-high accuracy stainless steel ring 

Scale name

Installed accuracy (depending on ring diameter)

Scale pitch

Ring diameter

Readhead compatibility

REXM/REXT

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

52 to 417 mm

VIONiCTONiC, TONiC UHV, SiGNUM

REXA

REXA scale (scale page)

As above

30 µm

As above

RESOLUTE, RESOLUTE UHV, RESOLUTE ETR, RESOLUTE FS

 

Glass disc

Scale name

Graduation accuracy (depending on ring diameter)

Scale pitch

Ring diameter

Readhead compatibility

RCDM

RCDM scale (scale page)

±0.5 µm

20 µm/40 µm

17 to 108 mm

 ATOM