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Baumer GXM2S Rotary Encoder
The Baumer GXM2S Rotary Encoder offers a Multiturn function, Optical sensing method, ø12...15 mm (blind hollow shaft) shaft type, and Connector M23, 12-pin connection. Manufactured by Baumer under the Baumer Rotary Encoder category, this model belongs to the EAL580-B Series.
| Brand | Sick |
| Product Type | Rotary Encoders |
| Model Number | GXM2S |
Baumer GXM2S Rotary Encoder – Technical Specifications
| Specification | Value |
|---|---|
| Voltage supply | 10...30 VDC, 5 VDC ±10 % |
| Reverse polarity protection | Yes |
| Consumption w/o load | ≤50 mA (24 VDC) |
| Interface | SSI, Incremental A 90° B (optional) |
| Function | Multiturn |
| Absolute accuracy | ±0.025 ° |
| Sensing method | Optical |
| Size (flange) | ø58 mm |
| Shaft type | ø12...15 mm (blind hollow shaft) |
| Protection EN 60529 | IP 54, IP 65 (optional) |
| Operating speed | ≤6000 rpm (mechanical), ≤6000 rpm (electric) |
| Starting acceleration | ≤1000 U/s² |
| Starting torque | ≤0.015 Nm (+25 °C, IP 54) |
| Rotor moment of inertia | 20 gcm² |
| Material | Housing: aluminium, Flange: aluminium |
| Operating temperature | -25...+85 °C, -40...+85 °C (optional) |
| Relative humidity | 95 % non-condensing |
| Resistance | EN 60068-2-6, Vibration ±0.75 mm - 10-58 Hz, 10 g - 58-2000 Hz, EN 60068-2-27, Shock 100 g, 6 ms |
| Weight approx. | 400 g |
| Connection | Connector M23, 12-pin |
The GXM2S: Baumer Through Hollow Shaft ø15 mm Absolute Encoder uses a robust optical sensing method to deliver highly accurate multiturn feedback with a resolution of ±0.025°. It supports a dual voltage supply of 10...30 VDC and 5 VDC ±10%, making it adaptable for integration with various control systems. Engineers can choose between SSI or optional Incremental A 90° B interfaces depending on system requirements, ensuring seamless communication with PLCs or servo drives. Built with a ø12...15 mm blind hollow shaft and a durable aluminium housing and flange, the encoder fits directly onto shafts without additional coupling hardware. It operates reliably at speeds up to 6000 rpm under both mechanical and electrical conditions. The starting torque is as low as 0.015 Nm, allowing for low-energy startup in energy-sensitive environments. It is designed to endure harsh factory conditions, with IP54/IP65 ingress protection, and proven resistance to shock (100 g) and vibration (up to 10 g) as per EN 60068 standards. A standard M23, 12-pin connector ensures a secure and industry-friendly electrical connection.
The Baumer GXM2S is trusted in a wide range of industrial sectors where compact size, shaft-mounted installation, and absolute position feedback are critical. Common applications include servo motor feedback loops, automated rotary tables, robotic joints, material handling axes, and printing press positioning systems. Its blind hollow shaft configuration allows for easy installation in space-constrained machines, especially where precision alignment is essential. Engineers prefer the GXM2S for its long-term signal stability, minimal mechanical wear, and plug-and-play compatibility with modern motion controllers. Maintenance teams value its low starting torque and rugged build, which reduces downtime and replacement frequency in demanding environments.
