Gxmmw A20EPA6 Advanced Rotary Encoder for Industrial Automation

• Customization: Available
• Application: Machine Tool
• Speed: Constant Speed
• Model NO.: GXMMW. A20EPA6
• Number of Stator: Single-Phase
• Function: Driving, Control
• Casing Protection: Open Type
• Number of Poles: 4
• Starting Mode: y-δ Starting
• Certification: ISO9001, CCC
• Transport Package: Box
• Origin: Null

Product Description

Magnetic incremental encoders operate based on magnetic sensing technology, a design that leverages the interaction between a magnetic rotor and a Hall-effect or magnetoresistive (MR) sensor to generate position and speed data. Unlike optical encoders- which rely on light sources, gratings, and photodetectors-magnetic models eliminate fragile optical components, replacing them with robust magnetic elements that withstand harsh conditions. At the core of a magnetic incremental encoder lies a rotating magnetic disk (or rotor) etched with alternating north and south pole patterns. As the rotor spins, the magnetic field around it fluctuates; this change is detected by stationary Hall-effect or MR sensors, which convert the magnetic signals into electrical pulses. These pulses are then processed by external electronics to calculate the encoder's angular position, rotational speed, and direction of movement-critical data for precision control in industrial systems.
Compared with optical encoders, magnetic incremental encoders offer distinct advantages in durability and environmental resilience, making them ideal for rugged industrial settings. Optical encoders are highly susceptible to performance degradation or failure when exposed to dust, oil, moisture, or vibration, as these contaminants block light paths or damage delicate gratings. In contrast, magnetic encoders are inherently resistant to dust and oil contamination: their sealed magnetic components prevent foreign particles from interfering with signal detection, and oil or lubricants do not disrupt magnetic field transmission. This resistance extends to temperature extremes, too-most magnetic models operate reliably across a range of -40°C to +100°C, outperforming many optical encoders that struggle at extreme high or low temperatures. Vibration and shock resistance are additional strengths: without glass gratings or fragile light-emitting diodes (LEDs), magnetic encoders endure mechanical stress from industrial machinery (such as conveyor belts, motors, or robotic arms) without compromising accuracy.

Series	GXMMW
Interface	EtherCAT
Sensing Method	Optical
Encoder Type	Absolute ST+MT
Absolute Resolution	13-Bit ST + 16-Bit MT
Incremental Output	Without
Supply Voltage	10 to 30 Vdc
Mounting Type	Clamping Flange
Shaft Type	Solid Shaft
Shaft (S)/Bore (B) Dia.	S: 10 mm
Connection Type	Bus Cover