Sealed Linear Scales
Linear Encoders for Length Measurement
Absolute versions that provide unique position at all times, including when powered on and off, and incremental versions that generate an output signal each time a marker/gradient is crossed. The markings, or signal periods, on incremental encoder scales are spaced evenly apart, while absolute encoders use more complex patterns to sign specific location
Sealed or enclosed linear encoder designs allow for design flexibility based on the environment. Where contaminant levels are high, sealed encoders with the highest IP ratings protect the delicate components of the encoder to ensure lasting performance. Where contamination is less of a factor, exposed encoders are an option.
Proper mounting of encoders is also crucial to performance. The mounting tolerances of exposed linear encoders from HEIDENHAIN have only a slight influence on the output signals. In particular, the specified distance tolerance between the scale and scanning head (scanning gap) causes only a negligible change in the signal amplitude. This variety makes HEIDENHAIN the source for nearly any application—including machine tools, semiconductor machines and medical machines—combating the biggest issues that erode precision and production.
WHY BUY HEIDENHAIN LINEAR ENCODERS:
Thermal expansion, deformation of drive mechanics or screw pitch issues are common, especially in machine tools. HEIDENHAIN encoders can help compensate for these kinds of physical changes that affect tool position and result in bad parts.
High long-term speed stability.
Vibration can cause any number of problems, depending on the application, from unnecessary heat in always-on applications to imprecise outputs in metalworking. HEIDENHAIN linear encoders have rigidity built in, with high resistance to vibration.
The signal periods HEIDENHAIN offer are the finest in the world, offering highest interpolation accuracy available.
In many cases, complex systems do not have a lot of space to spare. HEIDENHAIN offers compact, lightweight linear encoders with easy-install options that still maintain extreme rigidity.
Backed by more than a century of innovation—tried and true the world over—HEIDENHAIN linear encoders are durable and dependable, even after many years of operation.
2 YEAR WARRNTY ON ALL PRODUCTS
HEIDENHAIN Sealed Linear Encoders
Sealed linear encoders from HEIDENHAIN are protected from dust, chips and splash fluids and are ideal for operation on machine tools.
The aluminum housing of a HEIDENHAIN sealed linear encoder protects the scale, scanning carriage, and its guideway from chips, dust, and fluids. Downward-oriented elastic lips seal the housing. The scanning carriage travels along the scale on a low friction guide. It is connected to the external mounting block by a coupling that compensates unavoidable misalignment between the scale and the machine guideways.
- Accuracy grades as fine as ± 2 μm
- Measuring steps as fine as 0.001 μm
- Measuring lengths up to 30 m (to 72 m upon request)
- Fast and simple installation
- Large mounting tolerances
- High acceleration loading
- Protection against contamination
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.
Heidenhain Absolute slimline scales for CNC Machine Control
(replacing LC 483 and LC 493 series)
CNC Linear encoders with slimline scale housing Absolute linear encoders require no previous traverse to provide the current position value. The encoder transmits the absolute value through the EnDat interface or another serial interface.
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:
Absolute Linear Encoders for Safety-Related Applications: LC 495,LC 495C, LC 415, LF 485
Absolute position measurement
• Glass scale
Heidenhain Slimline Incremental scales for CNC Machine Control
(replacing LC 483 and LC 493 series):
Incremental linear encoders,the current position is determined by starting at a datum and counting measuring steps, or by subdividing and counting signal periods. Incremental encoders from HEIDENHAIN feature reference marks, which must be scanned after switch-on to reestablish the datum. This process is especially simple and fast with distance-coded reference marks.
HEIDENHAIN LS 488 , LS 487
(REPLACING LS 403, LS 603, LS 703, LS 704 OLD SERIES)
Incremental linear measurement
- Slim line
- Glass scale
- +/- 3UM and +/- 5 um accuracy
HEIDENHAIN LF 485
(Replacing LF 483)
Incremental linear measurement with very high repeatability
- Glass scale
- Slim line
- Small signal period 1vpp
- +/- 3 um and +/- 5 um Accuracy
HEIDENHAIN FULL-SIZE HOUSING LINEAR ABSOLUTE ENCODERS FOR CNC CONTROL
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.
Heidenhain LC 115 , LC 195 S
Absolute Linear Encoders for Safety-Related Applications:
- High vibration resistance
- ±5 μm, ±3 μm Accuray
- Endat 2.2/22
Heidenhain LC 115, LC 185, LC 195/S/F/M
Absolute linear Encoders for position measurement:
- High vibration resistance
- ±5 μm, ±3 μm Accuray
- Endat 2.2/22, Fanuc, MIT,
Heidenhain LC 201
Absolute position measurement for large measuring lengths
- High vibration resistance
- For large measuring lengths up to 28 m
- +/- 5 UM ACCURACY
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.
HEIDENHAIN FULL SIZE INCREMENTAL LINEAR ENCODERS
Heidenhain LF 185
- Incremental length measuring device
- Large-profile scale housing
- Very high repeatability
- ±2 μm, ±3 μm
Heidenhain LS 187/ LS 188
- Incremental linear Measurement
- Large-profile scale housing
- High vibration resistance
- ±3 μm, ±5 μm
HEIDENHAIN FULL SIZE INCERMENTAL LINEAR ENCODERS FOR MANUAL MACHINES:
For typical applications on manual machine tools such as milling machines or lathes, display steps of 10 µm or 5 µm are sufficient. Such display steps are provided by the LS 300 and LS 600 series linear encoders with an accuracy grade of ± 10 µm per meter traverse.
Heidenhain LB 382 (replacing LB 301/ LB302)
- Incremental linear Measurement
- Very long lengths to 72’
- Steel tape ±3 μm, ±5 μm
- Large-profile scale housing
Heidenhain LS 600 Series
- Incremental length measuring device
- Manual operation
- Large-profile scale housing
- For hand-operated machine tools
Heidenhain LS 300 Series
- Incremental linear encoders
- Slimline scale housing
- For manually operated machines
