Linear encoders for numerically controlled machine tools

Linear encoders from HEIDENHAIN for numerically controlled machine tools can be used nearly everywhere. They are ideal for machines and other equipment whose feed axes are in a servo loop, such as milling machines, machining centers, boring machines, lathes and grinding machines. The beneficial dynamic behavior of the linear encoders, their high permissible traversing speed, and their acceleration in the direction of measurement predestine them for use on highly-dynamic conventional axes as well as on direct drives.

Linear encoders with slimline scale housing

The linear encoders with slimline scale housing are designed for limited installation space. Larger measuring lengths and higher acceleration loads are made possible by using mounting spars or clamping elements.

Accuracy gradeMeasuring length MLIncremental signals Signal periodAbsolute position valuesModel
Absolute Linear Encoders for Safety-Related Applications±5 μm
±3 μm
70 mm to 2040 mm-EnDat 2.2/22
DQ 01
LC 415
LC 495 S
Absolute position measurement
• Glass scale
±5 μm
±3 μm
70 mm to 2040 mm

-EnDat 2.2/22
EnDat 2.2/02
DQ 01
Fanuc 05
Mit 03-04

LC 415

LC 485

LC 495 S
LC 495 F
LC 495 M

Incremental linear measurement with very high repeatability
• Steel scale
• Small signal period
±5 μm
±3 μm
50 mm to 1220 mm1 Vpp; 4 μm-LF 485
Incremental linear measurement
• Glass scale
±5 μm
±3 μm
70 mm to 2040 mm1 Vpp; 20 μm
TTL; bis 1 μm
-
-
LS 487
LS 477

Linear encoders with full-size scale housing

The linear encoders with full-size scale housing are characterized by their sturdy construction, high resistance to vibration and large measuring lengths. The scanning carriage is connected with the mounting block over an oblique blade that permits mounting both in upright and reclining positions with the same protection rating.

Accuracy gradeMeasuring length MLIncremental signals
Signal period
Absolute position valuesModel
Absolute Linear Encoders for Safety-Related Applications±5 μm
±3 μm
140 mm to 4240- EnDat 2.2/22
DQ 01
LC 115
LC 195 S
Absolute position measurement
• Glass scale
±5 μm
±3 μm
140 mm to 4240 mm-EnDat 2.2/22
EnDat 2.2/02
DQ 01
Fanuc 05
Mit 03-04
LC 115
LC 185
LC 195 S
LC 195 F
LC 195 M 
Absolute position measurement for large measuring lengths
• Steel scale tape
±5 μm4240 mm to 28040 mm-
1 Vpp; 40 μm
EnDat 2.2/22
EnDat 2.2/02
LC 211
LC 281
Incremental linear measurement with very high repeatability
• Steel scale
• Small signal period
±3 μm
±2 μm
140 mm to 1240 mm1 Vpp; 4 μm-LF 185
Incremental linear measurement
• Glass scale
±5 μm
±3 μm
140 mm bis 3040 mm1 Vpp; 20 μm
TTL; to 1 μm
-
-
LS 187
LS 177
Incremental linear measurement for large measuring lengths
• Steel scale tape
±5 μm440 mm to 30040 mm
Up to 72040 mm measuring length upon request
1 Vpp; 40 μm-LB 382 - single-section
LB 382 - multi-section