Product comparison table
Compare Renishaw's vast range of optical linear and rotary (angle) encoder systems.
For further information and product options, please visit the encoder product configurator.
Optical linear readheads
These tables are available with more details as a printer friendly PDF.
For further information, please refer to the relevant data sheets.
Absolute
Product name | Outputs (resolutions) | Scale options | Scale length | Scale accuracy | Maximum speed | Readhead size |
Digital: N/A | RTLA30/FASTRACK, RSLA30, RELA30 | RTLA30: up to 21 m RSLA30: up to 5 m | Up to ±1 µm/m | 100 m/s | 36 mm x 16.5 mm x 17.2 mm | |
| EVOLUTE™ | Digital: N/A | RTLA50/FASTRACK | Up to 10.02 m | ±10 µm/m | 100 m/s | 36 mm x 16.5 mm x 17.2 mm |
Incremental
Product name | Outputs (resolutions) | Scale options | Scale length | Scale accuracy | Maximum speed | Readhead size (L x W x H) |
| QUANTiC™ | Digital: RS422 (10 µm to 50 nm) Serial: N/A | RTLC40-S, RTLC40/FASTRACK, RTLC40H-S, RTLC40H/FASTRACK, RKLC40-S/RKLC40H-S | RTLC40-S/RTLC40, RTLC40H-S/RTLC40H: up to 10 m* RKLC40-S/RKLC40H-S: up to 20 m* * (longer on request) | RTLC40-S/RTLC40: up to ±15 µm/m RTLC40H-S/RTLC40H: up to ±5 µm/m RKLC40-S: ±15 µm/m RKLC40H-S: ±5 μm/m | 24 m/s | 35 mm x 13.5 mm x 10 mm |
Digital: RS422 (5 µm to 1 nm) Analogue: 1 Vpp (20 µm) Serial: N/A | RTLC20-S, RTLC20/FASTRACK, RKLC20-S, RELM20, RSLM20, RGSZ20 | RTLC20-S/RTLC20: up to 10 m* RKLC20-S: up to 20 m* RELM20: up to 1.5 m RSLM20: up to 5 m RGSZ20: up to 50 m * (longer on request) | RTLC20-S/RTLC20: ±5 μm/m RKLC20-S: ±5 μm/m RELM20: ±1 µm/m RSLM20: up to ±1.5 μm (dependent upon length) RGSZ20: ±15 µm/m | 10 m/s | 35 mm x 13.5 mm x 10 mm | |
Digital: RS422 (5 µm to 2.5 nm) Serial: N/A | RTLC20-S, RTLC20/FASTRACK, RKLC20-S, RELM20, RSLM20 | RTLC20-S/RTLC20: up to 10 m* RKLC20-S: up to 20 m* RELM20: up to 1.5 m RSLM20: up to 5 m * (longer on request) | RTLC20-S/RTLC20: ±5 μm/m RKLC20-S: ±5 μm/m RELM20: ±1 µm/m RSLM20: up to ±1.5 μm (dependent upon length) | 12 m/s | 35 mm x 13.5 mm x 10 mm | |
Digital: RS422 (10 µm to 2.5 nm) Serial: N/A | RTLF, RCLC | RTLF: up to 10 m (>10 m on request) | RTLF20/RTLF40H: ±5 μm/m RTLF40: ±15 μm/m RCLC: ±3 µm/m | 20 m/s | 20.5 mm x 12.7 mm x 10.85 mm (20.5 mm x 12.7 mm x 7.85 mm for top exit variant) | |
Digital: RS422 (10 µm to 1 nm) Analogue: 1 Vpp (20µm and 40 µm) Serial: N/A | RTLF, RCLC | RTLF: up to 10 m (>10 m on request) | Up to ±5 µm/m | 20 m/s | 20.5 mm x 12.7 mm x 8.35 mm (20.5 mm x 12.7 mm x 7.3 mm for FPC version) | |
Digital: RS422 (5 µm to 10 nm) Analogue: 1 Vpp (20 µm) Serial: N/A | RSLR20 | Up to 5 m | ±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 | 8 m/s | 36 mm x 13.5 mm x 14.8 mm | |
Digital: RS422 (5 µm to 5 nm) Analogue: 1 Vpp (20 µm) Serial: N/A | RSLR20 | Up to 5 m | ±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 | 5 m/s | 36 mm x 13.5 mm x 10.5 mm | |
Digital: RS422 (5 µm to 50 nm) Analogue: 1 Vpp (20 µm) Serial: N/A | RGS20 | Up to 50 m >50 special order only | ±15 µm/m | 10 m/s | 44 mm x 27.0 mm x 16.0mm | |
Digital: RS422 (5 µm to 10 nm) Analogue: 1 Vpp (20 µm) Serial: N/A | RGS20 | Up to 50 m >50 special order only | ±15 µm/m | 8 m/s | 36 mm x 13.5 mm x 14.8mm | |
Digital: RS422 (5 µm to 5 nm) Analogue: 1 Vpp (20 µm) Serial: N/A | RGS20 | Up to 50 m >50 special order only | ±15 µm/m | 5 m/s | 36 mm x 13.5 mm x 10.5 mm | |
Digital: RS422 (10 µm to 50 nm) Analogue: 1 Vpp (40 µm) Serial: N/A | RGS40 | Up to 50 m >50 special order only | ±15 µm/m | 8 m/s | 15 mm x 15 mm x 10.5 mm | |
Digital: RS422 (10 µm to 50 nm) Analogue: 1 Vpp (40 µm) Serial: N/A | RGS40-G | Up to 1.01 m | Up to ±4.2 µm | 10 m/s | 44 mm x 27 mm x 17 mm | |
Digital: RS422 (10 µm to 50 nm) Analogue: 1 Vpp (40 µm) Serial: N/A | RGS40 | Up to 50 m >50 special order only | ±15 µm/m | 15 m/s | 44 mm x 27 mm x 17.0 mm | |
Digital: RS422 (10 µm to 0.1 µm) Analogue: 1 Vpp (40 µm) Serial: N/A | RTLR40 | Up to 20 m | Up to ±15 µm/m | 10 m/s | 44 mm x 27 mm x 17 mm |
Optical rotary readheads
These tables are available with more details as a printer friendly PDF.
For further information, please refer to the relevant datasheets.
Absolute
Product name | Outputs (resolutions) | Scale options | Ring/disc diameter | System accuracy (depending on ring diameter) | Maximum speed (depending on ring size and resolution) | Readhead size |
Digital: N/A | RESA30, REXA30 | RESA30: 52 mm to 550 mm REXA30: 52 mm to 417 mm | RESx rings: ±4.28 to ±0.41 arc seconds | 100 m/s | 36 mm x 16.5 mm x 17.2 mm |
Incremental
Product name | Outputs (resolutions) | Scale options | Ring/disc diameter | System accuracy | Maximum speed | Readhead size |
| QUANTiC™ | Digital: RS422 (10 µm to 50 nm) Serial: N/A | RESM40 | 52 mm to 550 mm | ±4.6 to ±0.44 arc seconds | 24 m/s (up to 8 800 rpm) | 35 mm x 13.5 mm x 10 mm |
Digital: RS422 (5 µm to 1 nm) | RESM20, REXM20 | RESM20: 52 mm to 550 mm | RESx rings: ±4.28 to ±0.41 arc seconds | 10 m/s (up to 3 673 rpm) | 35 mm x 13.5 mm x 10 mm | |
Digital: RS422 (5 µm to 2.5 nm) | RESM20, REXM20 | RESM20: 52 mm to 550 mm REXM20: 52 mm to 417 mm | RESx rings: ±4.28 to ±0.41 arc seconds | 12 m/s (up to 4 400 rpm) | 35 mm x 13.5 mm x 10 mm | |
| ATOM DX™ | Digital: RS422 (10 µm to 2.5 nm) Serial: N/A | RCDM | 17 mm to108 mm | 40 µm: ±19.61 to ±3.25 arc seconds | 20 m/s | 20.5 mm x 12.7 mm x 10.85 mm (20.5 mm x 12.7 mm x 7.85 mm for top exit variant) |
Digital: RS422 (10 µm to 1 nm) | RCDM | 17 mm to108 mm | 40 µm: ±19.61 to ±3.25 arc seconds | 20 m/s (up to 29 200 rpm) | 20.5 mm x 12.7 mm x 8.35 mm | |
Digital: RS422 (5 µm to 10 nm) | RESR20 | 52 mm to 550 mm | ±5.6 to ±0.5 arc seconds | 8 m/s (up to 2 938 rpm) | 36 mm x 13.5 mm x 14.8 mm | |
Digital: RS422 (5 µm to 5 nm) | RESR20 | 52 mm to 550 mm | ±5.6 to ±0.5 arc seconds | 5 m/s (up to 1 836 rpm) | 36 mm x 13.5 mm x 10.5 mm | |
Digital: RS422 (10 µm to 50 nm) | RESR40 | 52 mm to 550 mm | ±6.3 to ±0.6 arc seconds | 10 m/s (up to 3 687 rpm) | 44 mm x 27 mm x 17 mm |