HEIDENHAIN Length Gauges

HEIDENHAIN length gauges are high-precision linear measuring devices designed to provide exceptionally accurate position measurement for industrial metrology, quality assurance, and precision automation applications. Combining advanced photoelectric scanning technology with precision mechanical construction, these gauges deliver outstanding measurement accuracy, repeatability, and long-term reliability across a wide range of industrial environments.

The range includes both incremental and absolute length gauges, allowing engineers to select the most appropriate solution for their application. The METRO series delivers outstanding accuracy over measuring ranges of up to 100 mm, while the compact SPECTO series is designed for space-constrained measuring stations. The ACANTO series provides absolute position measurement via the EnDat interface, eliminating the need for reference runs after power-up and simplifying machine commissioning.

Designed for demanding production environments, HEIDENHAIN length gauges feature integrated precision guideways with ball-bearing-guided plungers, ensuring smooth movement, minimal friction, and exceptional repeatability. Depending on the application, gauges are available with spring-loaded, pneumatic, motorised, or cable-operated plungers, allowing machine builders to optimise gauging force and measurement consistency for delicate or high-throughput inspection tasks.

High system accuracies of up to ±0.2 μm, together with excellent repeatability and measuring ranges up to 100 mm, make HEIDENHAIN length gauges suitable for everything from automated production inspection to high-precision laboratory measurement. Their rugged construction and excellent thermal stability ensure reliable operation even in demanding industrial environments.

Micromech supplies HEIDENHAIN length gauges as part of a complete precision measurement and motion control portfolio for OEMs, machine builders, and industrial automation applications throughout the UK.

Key Features

• Incremental and absolute length gauge options
• System accuracy up to ±0.2 μm
• Excellent measurement repeatability
• Measuring ranges up to 100 mm
• High-resolution photoelectric scanning technology
• Integrated precision guideways
• Ball-bearing-guided plunger design
• Spring-loaded, pneumatic, motorised, and cable-operated variants
• Compact designs for space-constrained applications
• EnDat interface available on absolute models
• High thermal stability and long-term reliability
• Designed for industrial metrology and automation applications

Applications

HEIDENHAIN length gauges are designed for applications requiring highly accurate linear measurement, repeatability, and reliable position feedback.

Typical applications include:

• Production metrology
• Multi-gauging fixtures
• Quality control systems
• Automated inspection equipment
• Measuring equipment monitoring
• Precision positioning systems
• Machine tool calibration
• Semiconductor manufacturing equipment
• Laboratory measurement systems
• General industrial automation

Need Help Selecting the Right Length Gauge?

Micromech supplies HEIDENHAIN length gauges, linear encoders, angle encoders, digital readouts, and complete precision measurement solutions for industrial applications.

Our engineers can help specify the right length gauge for your application. Contact Micromech

POSITIP 8000 series

• Digital readouts for fast and reliable positioning
• 12-inch touchscreen with intuitive user interface (1280 x 800 pixels)
• Up to three NC-controlled axes and switching functions for simple automated tasks
• Up to six axes (1 VPP, 11 µAPP, EnDat 2.2)

ND 7000 series

• Digital readouts for fast and reliable positioning of manually-operated machine tools
• 7-inch touchscreen with intuitive user interface (800 x 480 pixels)
• Three axes (1 VPP, 11 µAPP, EnDat 2.2)
• Switching functions for simple automated tasks

ND 5023

• Simple digital readout for manually-operated machine tools
• 7-inch screen (800 x 480 pixels) and membrane keyboard
• Three axes (TTL)

ND 200 series

• Digital readouts for measuring and inspection stations or simple measuring and positioning tasks
• 4.3-inch screen and keyboard
• Up to two axes (1 VPP, 11 µAPP, EnDat 2.2)
• Switching functions for simple automated tasks

ERN 1300 series

• Incremental rotary encoders with integral bearing
• Stator coupling for axial mounting
• Tapered shaft
• Very high positioning accuracy
• With block and sinusoidal commutation signals
• Housing diameter ≈ 56 mm

ERN 1023

• Incremental rotary encoder with integral bearing
• Stator coupling for plane surface
• Blind hollow shaft
• Block commutation signals
• Housing diameter ≈ 35 mm

ERN 1123

• Incremental rotary encoders with integral bearing
• Stator coupling for plane surface
• Hollow through shaft
• High positioning accuracy
• Block commutation signals
• Housing diameter ≈ 35 mm

HR 1120

• Electronic handwheel with integral bearing
• Version for integration
• Mechanical detent
• Housing diameter: 60 mm

ERO 1400 series

• Incremental rotary encoders without integral bearing
• Low-profile design
• Blind hollow shaft and hollow through shaft
• High positioning accuracy
• Housing diameter ≈ 35 mm

ERO 1200 series

• Incremental rotary encoders without integral bearing
• Comprised of scanning unit and rotor unit
• Low-profile design
• Hollow through shaft
• High positioning accuracy
• Housing diameter ≈ 56 mm

KCI/KBI 100 series

• Absolute rotary encoder without integral bearing
• High axial tolerance of up to ±0.5 mm
• Hollow through shaft: Ø 30 mm / Ø 40 mm
• Robust inductive scanning
• Positioning accuracy of down to ±40″
• 524 288 positions/rev.
• Multiturn functionality for up to 65 536 revolutions
• Max. operating temperature: 115 °C
• Interface: EnDat
• Overall diameter ≈ 74 mm

KCI 120 Dplus series

• Absolute rotary encoders without integral bearing
• Added second position measuring functionality
• Hollow through shaft
• Robust inductive scanning principle
• Comprised of one scanning unit and two rotor units
• Available with up to SIL 3 functional safety
• High positioning accuracy
• Housing diameter ≈ 81 mm

ECN/EQN 1100 series

• Absolute rotary encoders with integral bearing
• Stator coupling for plane surface
• Blind hollow shaft
• Very high positioning accuracy
• Available with functional safety
• Housing diameter ≈ 35 mm

ECN/EQN 1300 series

• Absolute rotary encoders with integral bearing
• Stator coupling for axial mounting
• Taper shaft
• Very high positioning accuracy
• Available with functional safety
• Housing diameter ≈ 56 mm

KCI/KBI 1300 series

• Absolute rotary encoders without integral bearing
• Comprised of scanning unit and rotor unit
• Robust inductive scanning principle
• Very low-profile design
• High positioning accuracy
• Housing diameter ≈ 56 mm

ECI/EBI/EQI 1100 series

• Absolute rotary encoders without integral bearing
• Robust inductive scanning
• Blind hollow shaft
• Low-profile design
• High positioning accuracy
• Available with up to SIL 3 functional safety
• Housing diameter ≈ 35 mm

ECI/EBI/EQI 1300 series

• Absolute rotary encoders without integral bearing
• Robust inductive scanning principle
• Low-profile design
• High positioning accuracy
• Blind hollow shaft or tapered shaft
• Available with up to SIL 3 functional safety
• Housing diameter ≈ 56 mm

ECI/EBI 100 series

• Absolute rotary encoders without integral bearing
• Robust inductive scanning principle
• Very low-profile design
• Hollow through shaft diameter: up to 50 mm
• High positioning accuracy
• Housing diameter ≈ 91 mm

ECI/EBI 4000 series

• Absolute rotary encoders without integral bearing
• Robust inductive scanning
• Comprised of scanning unit and rotor unit
• Low-profile design
• Hollow through shaft diameters: 90 mm and 180 mm
• Available with up to SIL 3 functional safety
• High positioning accuracy

AEF 1300 series

• Absolute rotary encoders with integral bearing
• Stator couplings for axial mounting
• Very high positioning accuracy
• Housing diameter ≈ 56 mm

KCI 419 Dplus

• Absolute inductive rotary encoders without integral bearing
• Added axial distance measurement
• Robust inductive scanning
• Scanning unit and rotor unit
• High positioning accuracy
• Housing diameter ≈ 56 mm

ECN/EQN 1000 series

• Absolute rotary encoders with integral bearing
• Stator coupling for plane surface
• Blind hollow shaft
• Very high positioning accuracy
• Housing diameter ≈ 35 mm

ECN/EQN 400 series

• Absolute rotary encoders with integral bearing
• Stator coupling for plane surface
• Blind hollow shaft or hollow through shaft
• Very high positioning accuracy
• Available with functional safety
• Housing diameter ≈ 56 mm

ECN 100 series

• Absolute rotary encoders with integral bearing
• Stator coupling for plane surface
• Hollow through shaft of up to 50 mm
• Very high positioning accuracy
• Housing diameter ≈ 87 mm

ROC/ROQ 1000 series

• Absolute rotary encoders with integral bearing
• Synchro flange
• Solid shaft for separate shaft coupling
• Very high positioning accuracy
• Housing diameter ≈ 35 mm

ROC/ROQ 400 series

• Absolute rotary encoders
• Synchro flange or clamping flange
• Solid shaft for separate shaft coupling
• Available with functional safety
• Very high positioning accuracy
• Housing diameter ≈ 56 mm

ERN 1000 series

• Incremental rotary encoders with integral bearing
• Stator coupling for plane surface
• Blind hollow shaft
• Very high positioning accuracy
• Housing diameter ≈ 35 mm

ERN 1023

• Incremental rotary encoders with integral bearing
• Stator coupling for plane surface
• Blind hollow shaft
• High positioning accuracy
• Block commutation signals
• Housing diameter ≈ 35 mm

ERN 400 series

• Incremental rotary encoders with integral bearing
• Stator coupling for plane surface
• Blind hollow shaft or hollow through shaft
• Very high positioning accuracy
• Housing diameter ≈ 56 mm

ERN 100 series

• Incremental rotary encoders with integral bearing
• Stator coupling for plane surface
• Hollow through shaft of up to 50 mm
• Very high positioning accuracy
• Housing diameter ≈ 87 mm

ROD 1000 series

• Incremental rotary encoders with integral bearing
• Synchro flange
• Solid shaft for separate shaft coupling
• Very high positioning accuracy
• Housing diameter ≈ 35 mm

ROD 400 series

• Incremental rotary encoders with integral bearing
• Synchro flange or clamping flange
• Solid shaft for separate shaft coupling
• Very high positioning accuracy
• Housing diameter ≈ 56 mm

ROD 600

• Incremental rotary encoders with integral bearing
• Clamping flange
• Solid shaft with key for separate shaft coupling
• High positioning accuracy
• TTL and HTL output signals
• Housing diameter ≈ 66 mm

ROD 1900 series

• Incremental rotary encoders with integral bearing
• Flange or base fastening
• Solid shaft with key for separate shaft coupling
• High positioning accuracy
• HTL and HTLs output signals
• Housing diameter ≈ 120 mm

HR 1120

• Electronic handwheel with integral bearing
• Version for internal installation
• Mechanical detent
• TTL output signals
• Housing diameter: 60 mm

MRP series

• Absolute and incremental angle encoder modules
• High measuring and bearing accuracies
• High resolution and very high repeatability
• Interfaces: 1 VPP, EnDat

MRS 2200 series

• Incremental angle encoder module
• High repeatability
• Direct loading
• Superb tilting rigidity
• Interface: 1 VPP

SRP 5000 series

• Absolute and incremental angle encoder modules
• Integrated motor
• Low cogging torque
• High speed stability and positioning accuracy
• Interfaces: 1 VPP, EnDat

ERA 4000 series

• Incremental angle encoders
• Optical scanning
• High accuracy
• Protective cover
• Graduation accuracy: ±2” to ±5”

ERM 2000 series

• Incremental angle encoders
• Magnetic scanning
• Sturdy and tolerant to contamination
• Easy mounting
• Graduation accuracy: ±2.5” to ±72”

ERP 1000 series

• Incremental angle encoders
• Optical scanning
• Very high resolution and accuracy
• Compact design
• Graduation accuracy: ±0.9” to ±4”

ERO 2000 series

• Incremental angle encoders
• Optical scanning
• High resolution and accuracy
• Compact design
• Graduation accuracy: ±8”

ECA 4000 series

• Absolute angle encoders
• Optical scanning
• High accuracy
• Sturdy, with wide mounting tolerances
• Also available with functional safety
  Graduation accuracy: ±1.5” to ±3”

ECM 2400 series

• Absolute angle encoders
• Magnetic scanning
• Robust and resistant to contamination
• Also available with functional safety
• Graduation accuracy: ±3.5” to ±8”

RON 200 series

• Incremental angle encoders
• System accuracy of ±2.5” / ±5”
• Integrated stator coupling
• Hollow through shaft

RON 785, RON 786, RON 886, and RPN 886

• Incremental angle encoders
• System accuracy of ±1” / ±2”
• Integrated stator coupling
• Hollow through shaft

ROD 200 series

• Incremental angle encoders
• System accuracy of ±5”
• Separate shaft coupling
• Solid shaft

ROD 780 and ROD 880

• Incremental angle encoders
• System accuracy of ±1” / ±2”
• Separate shaft coupling
• Solid shaft