Introduction
The document provides detailed information about the BPS series of pneumatic stepping motors by Baumgartner, designed for high accuracy under challenging conditions. These motors are suitable for rotary and linear movements, with or without an attached matrix valve, and are ideal for applications requiring precise positioning and adjustment.

Specifications
The BPS motors operate effectively in extreme conditions, such as dust, dirt, and strong magnetic fields, with an operating temperature range of -25°C to +70°C and an IP 55 rating. They are self-locking in the event of power failure, ensuring no step loss. The motors offer a constant tolerance of ±9 minutes of angle.

Performance
The smallest model in the series delivers a torque of 1.7 Nm with a compact 52 mm diameter. The motors are not suitable for direct drive of rotating parts with high mass. They can be integrated into stored program control systems, such as Siemens S7-300, with available program modules.

Types and Dimensions
The document lists various types of BPS motors, including those with hollow shafts for unlimited or limited linear motion. The motors are available with or without a matrix valve and sensor unit. Key dimensions and performance metrics for models 1216, 1620, and 2532 are provided, including step angle, maximum torque, speed, and weight.

Applications
The BPS motors are suitable for isolating, positioning, adjustment, precise dosing, and proportional remote adjustment of valves and cocks. They are authorized for use in Ex-zones 0, 1, 2, 20, 21, and 22.

Test Conditions
Test conditions include operation at 6 bars with specified hose lengths and valve retardation times. Specific data for all types are available in PDF format from Baumgartner AG.