No Bearing Encoders : Discover Netzer's VLX-25 Rotary Encoders

VLX-25

The Netzer VLX-25 Absolute Rotary Encoder is an ultra-compact (<7 mm thin) and ultra-lightweight (<4g) solution, delivering up to 21-bit resolution with 0.025 mdeg accuracy. Designed for tight-space applications, this miniature rotary encoder provides high-precision, contactless capacitive sensing technology for wear-free, long-term reliability in demanding motion control systems.

Perfect for aerospace, robotics, medical devices, and compact industrial automation, the VLX-25’s ultra-small, hollow, low-inertia design minimizes system weight while maximizing performance. When size constraints demand the smallest, most precise rotary feedback, the VLX-25 delivers industry-leading accuracy in a miniature package.

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Features

Lightweight and compact structure for minimal impact on systems
Exceptional repeatability with high-precision rotary feedback
Wear-free operation enabled by contactless capacitive sensing
Best-in-class accuracy through scaled precision technology
Superior resistance to magnetic interference and EMI
Built for long-term durability with minimal maintenance needs

Unique Values

Low Profile
Wide mounting
High precision
Immunity to Magnetic

Accuracy

±0.025˚
Resolution

17-21 bit
OD

25 mm
ID

2.2 mm
Height

6.3 mm
Weight

3.6 gr

Technical Data

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General

Angular resolution 17-21 bit
Nominal position accuracy ±0.035°
Repeatability 2.7 mdeg / 9.9 Arcsec
Maximum operational speed 6,000 rpm
Measurement range Single turn, unlimited
Built In Test BIT Optional
Rotation direction Adjustable CW/CCW (Default same direction from bottom side of the encoder

Mechanical

Allowable mounting eccentricity ±0.1 mm
Allowable axial mounting tolerance ±0.15 mm / ±0.2 mm using auto calibration
Rotor inertia 37.8 gr · mm²
Total weight 3.6 gr
Outer Ø / Inner Ø / Height 25 / 2.2 / 6.3 mm
Material (stator, rotor) PCB (FR4)
Nominal air gap (stator, rotor) 0.6 mm

Electrical

Supply voltage 5V ± 5%
Current consumption ~110 mA
Interconnection Connector: DF52-10S -0.8H
Communication SSi / BiSS-C
Output code Binary
Serial output Differential RS-422
Clock frequency 0.1-5.0 MHz
Position update rate 35 kHz

Environmental

EMC IEC 6100-6-2, IEC 6100-6-4
Operating temperature -40°C to +85°C
Storage temperature -40°C to +85°C
Relative humidity 98% Non condensing
Shock endurance / functional 100g 6msec saw-tooth per IEC 60068-2-27:2009
Vibration endurance 20g @ 10 to 2000 Hz sweep per IEC 60068-2-6
Protection IP 40

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OD
- 25 mm
- 35 mm
- 60 mm
- 80 mm
- 100 mm
- 140 mm
- 170 mm
- 247 mm
Output
- BiSS
- SSi
Resolution
- 17 bit
- 18 bit
- 19 bit
- 20 bit
- 21 bit
- 22 bit
- 23 bit
Bit
- BIT
Shaft-turn Counter
- 4,096
- 8,192
- 16,384
- 32,768
Interconnection
- Horizontal Connector
- Vertical Connector
Rotor Type
- End Shaft - Single Screw Rotor
- Hollow Shaft Encoder
Custom
- Extended Accuracy

Part Number:

VLX

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Meet our users

VLX-25 | ABSOLUTE ROTARY ENCODER VLX | Robotics & Industry | Hollow Shaft

VLX-25

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