ASC85 absolute rotary encoder, an absolute position encoder for industrial automation.

ASC85 high-accuracy optical encoder

The high-accuracy optical encoder delivers 25-bit absolute position feedback for applications that demand exceptional precision and reliability. Designed with a 50 mm through-hollow shaft and a rugged stainless steel housing, it is ideal for precision motor feedback, radar systems, defense applications, and advanced industrial automation.

Its optical sensing technology provides 25-bit resolution, enabling highly accurate position measurement for closed-loop motion control. As a result, the encoder delivers smooth motion, excellent repeatability, and precise positioning in systems where even the smallest measurement errors can affect performance.

The 87 mm housing features a 50 mm through-hollow shaft, making it well suited for large-diameter motor shafts and direct-drive systems. In addition, users can choose SSI or BiSS communication interfaces for fast, reliable integration with PLCs, servo drives, and industrial motion controllers.

Built for harsh environments, the encoder features a stainless steel housing and IP65 protection against dust and water ingress. It also supports shaft speeds up to 2,000 rpm, ensuring dependable operation in demanding industrial, aerospace, and radar applications.

Key Features

  • High-accuracy optical absolute encoder
  • 25-bit absolute resolution
  • 50 mm through-hollow shaft
  • Rugged stainless steel housing
  • Designed for precision motor feedback and radar systems
  • Interfaces: SSI and BiSS
  • Housing diameter: 87 mm
  • Connection options:
    • 2 m cable
    • M12 12-pin inline connector
    • M23 12-pin inline connector
  • Protection rating: IP65
  • Maximum shaft speed: 2,000 rpm

Technical Specifications

FeatureSpecification
TechnologyOptical Absolute
Resolution25 bit
Housing Diameter87 mm
Shaft TypeThrough hollow shaft
Shaft Diameter50 mm
InterfacesSSI, BiSS
Connections2 m cable, M12 or M23 12-pin connector
ProtectionIP65
Maximum Speed2,000 rpm
Housing MaterialStainless steel

Applications

The 25-bit optical encoder is ideal for:

  • Precision motor feedback
  • Radar and antenna positioning systems
  • Defense applications
  • Aerospace systems
  • Direct-drive motors
  • Industrial automation
  • Robotics
  • Precision positioning equipment
  • Test and measurement systems
  • Heavy-duty motion control

Ultra-Precise Position Feedback for Critical Applications

The 25-bit optical encoder combines high-resolution optical sensing, a large through-hollow shaft, and a stainless steel industrial housing to deliver exceptional positioning accuracy in demanding environments. With SSI and BiSS interfaces, IP65 protection, and robust construction, it is an excellent solution for precision motion control, radar systems, and advanced industrial automation.