Overview
The Escap 28GDT2R servo motor is a miniature DC brushed motor manufactured by Portescap, a leading producer of precision motion solutions. This low-inertia instrument motor operates at 12V DC and features a 4mm shaft diameter, making it ideal for compact automation systems, medical devices, laboratory equipment, and precision measurement instruments where space and accuracy are critical.
Key Features
- Nominal Voltage: 12V DC operation for standard power supply integration
- Compact Design: 28mm frame diameter with low-inertia performance for rapid acceleration
- Precision Shaft: 4mm shaft diameter compatible with standard mechanical couplings and gearheads
- Brush DC Motor: Reliable commutated design with proven field history in motion control
- Modular Part Coding: 222E and 404E designations indicate specific winding and configuration variants for application flexibility
Technical Specifications
- Manufacturer: Portescap (Escap brand)
- Motor Type: Brush DC Servo Motor
- Part Number: 28GDT2R 12 222E 404E 56
- Nominal Voltage: 12 VDC
- Shaft Diameter: 4 mm
- Performance Classification: Low Inertia
- Frame Size: 28 mm
- Motor Class: Instrument / Servo Motor
- Brush Type: Carbon-composite (standard for DC servo motors)
Typical Applications
- Medical diagnostic equipment and surgical instruments
- Laboratory automation and analytical instruments
- Precision positioning and motion control systems
- Robotic actuators requiring compact form factors
- Automated test equipment (ATE) and measurement systems
- Document scanners and imaging devices
- Optical and photographic equipment with motorized focus or adjustment
Compatibility & Replacements
Compatible With
- Portescap gearheads and mechanical coupling systems
- Standard 12V DC regulated power supplies
- DC motor drivers and PWM speed controllers
- Optical encoders (28GDT2R variants support encoder integration)
- Custom mechanical assemblies with 4mm shaft interface
Replaces / Drop-In Replacement For
- Functionally equivalent to other Portescap 28-frame DC servo motors with matching 12V specification and 4mm shaft
- Verify compatibility with your system integrator before ordering, as winding codes (222E / 404E) affect performance curves and thermal characteristics
Works With
- Analog PWM speed control circuits
- Logic-level motor driver modules
- Industrial PLC analog output cards (0-10V, 4-20mA control)
- Proportional solenoid driver circuits for synchronized motion
- Encoder feedback systems for closed-loop position control
