Heidenhain LB 382 Series (multi-section) Incremental Encoders (440mm-33040mm)

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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 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 full-size scale housing are characterized by their sturdy construction, high resistance to vibration and large measuring lengths. As a connection between the scanning carriage and the mounting block, they have an “oblique web,” which permits vertical and horizontal mounting with the same degree of protection.


SpecificationsLB 382 (multi-section)
Measuring Standard (Coefficient of Linear Expansion) Rustproof steel scale tape with AURODUR graduation, grating period 40 µm αtherm ≈ 10e-6 K^-1
Accuracy grade* ±5 µm
Measuring length ML* (mm)

Kit with single-section AURODUR steel tape and housing sections for measuring lengths from 3240 mm to 30 040 mm in 200 mm steps (up to 72 040 mm upon request)
Housing sections: 1000 mm, 1200 mm, 1400 mm, 1600 mm, 1800 mm, 2000 mm

Reference Marks Selectable with magnets every 50 mm; One mark at midpoint of measuring length
Interface 1 Vpp

Integrated interpolation*
Signal period

40 µm
Diagnostics Interface Analog
Cutoff Frequency        -3 dB ≥ 250 kHz
Electrical Connection Separate adapter cable (1 m/3 m/6 m/9 m) connectable on mounting block
Cable Length ≤ 150m
Voltage Supply without Load DC 5 V ±0.25 V/ < 150 mA
Traversing Speed ≤ 120 m/min
Required Moving Force ≤ 15 N
Vibration 55 Hz to 2000 Hz ≤ 300 m/s² (EN 60 068-2-6) 
Shock 11 ms; Acceleration ≤ 300 m/s² (EN 60 068-2-27)
Operating temperature 0°C to 50°C
Protection EN 60 5293) IP 53 when installed according to instructions in the brochure, IP 64 with sealing air from DA 400
Mass Encoder: 1.3 kg + 3.6 kg/m measuring length

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Additional Info

Additional Info

<p><a href="http://machinetoolproducts.com/content/Heidenhain/Linear_Encoders_For_Numerically_Controlled_Machine_Tools.pdf" target="_blank">Linear Encoders Brochure</a></p> <p><a href="http://machinetoolproducts.com/content/Heidenhain/Interfaces.pdf" target="_blank">Linear Encoder Interfaces Brochure</a></p>
1 Vpp