AT-033-0120 Sumtak Absolute Rotary Encoder

AT-033-0120 Sumtak Absolute Rotary Encoder – Technical Overview

The AT-033-0120 absolute rotary encoder is a high-precision position feedback device designed for demanding industrial automation applications. Built with a solid shaft structure and robust sensing technology, this encoder delivers reliable absolute position data, making it ideal for machine tools, turret systems, and rotary indexing mechanisms where accuracy and repeatability are critical.

Absolute Position Detection with High Resolution

The AT-033-0120 encoder provides 120-position resolution, enabling precise angular position detection within a full 360° rotation. The output structure is based on a binary (BIN) coded absolute signal, ensuring that each position corresponds to a unique digital output combination. This eliminates the need for homing procedures after power loss, significantly improving operational efficiency in automated systems.

The encoder incorporates:

• 1-bit timing pulse (TP1) for synchronization
• 7-bit position signal output for accurate position encoding
• Stable signal transition characteristics for reliable data acquisition

These features ensure consistent and noise-resistant signal transmission even in high-speed applications.

Mechanical Design and Performance

The AT-033-0120 is engineered with a solid shaft configuration (10 mm diameter), providing excellent mechanical stability and compatibility with industrial drive systems. It supports high rotational performance with:

• Maximum speed: up to 5000 rpm
• Low starting torque: ≤ 0.02 Nm
• Permissible shaft load: up to 50 N (radial and axial)
• Moment of inertia: optimized for dynamic applications

Its durable construction ensures long-term operation, with a service life of approximately 10,000 hours under standard conditions.

Electrical Characteristics

The encoder operates with a DC 24V power supply (±5%), making it compatible with standard industrial control systems. The output stage is designed as:

• NPN open collector output
• Low current consumption (≤ 60 mA)
• Fast response times in the microsecond range
• Switching frequency capability up to 20 kHz

This configuration allows seamless integration with PLCs, CNC controllers, and other automation hardware.

Environmental Durability

Designed for harsh industrial environments, the AT-033-0120 offers strong resistance against mechanical and environmental stress:

• Protection class: IP66 (dust-tight and protected against powerful water jets)
• Operating temperature: -10°C to +60°C
• Storage temperature: -20°C to +80°C
• Vibration resistance: up to 2000 Hz
• Shock resistance: up to 1000 m/s²

These specifications ensure reliable performance in applications exposed to vibration, moisture, and temperature fluctuations.

Cable and Installation Features

The encoder is equipped with an integrated cable system designed for durability and signal integrity:

• Cable length: 5 meters
• Cable type: PVC insulated
• Wire configuration: AWG22 / AWG24 combination
• Optimized shielding for noise immunity

The compact and lightweight design (approx. 0.48 kg) allows easy installation even in space-constrained machinery.

Typical Applications

The AT-033-0120 is widely used in industrial sectors where precise angular positioning is essential:

• CNC turret positioning systems
• Rotary indexing tables
• Packaging and labeling machines
• Textile and printing machinery
• Automated assembly systems

Its absolute positioning capability ensures that the system always knows the exact shaft position, even after power interruptions.

Conclusion

The AT-033-0120 Sumtak Absolute Rotary Encoder stands out as a reliable and high-performance solution for industrial position sensing. With its solid mechanical design, accurate binary output, and strong environmental resistance, it meets the demands of modern automation systems requiring precision, durability, and efficiency.

Its combination of high-speed capability, absolute position feedback, and industrial-grade protection makes it a preferred choice for engineers seeking dependable rotary encoding solutions.