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SDLM-025-070-01-01 Direct Drive Linear Servo Motor with Built-in Encoder
Stroke: 0.500 in. (12.7 mm), Continuous Force: 21.2 oz (5.9 N), Encoder Resolution: 1.25 microns

Housing Outside Diameter, 1.000 inch, 25.4 mm

Product Overview The SDLM-025-070-01-01 is a compact direct drive linear servo motor that combines high force with a short 0.500-inch stroke. Its housing measures 1.000 in. (25.4 mm) in diameter and 2.750 in. (69.9 mm) long. The actuator provides a 0.500 in. (12.7 mm) stroke, 21.2 oz (5.9 N) of continuous force, and 67.0 oz (18.6 N) of intermittent force at a 10% duty cycle. Performance and Construction The non-commutated direct-drive design eliminates ball screws, gears, belts, and other mechanical transmission components. Direct coupling to the low-inertia output shaft provides zero mechanical backlash, no cogging, high acceleration and deceleration, smooth bidirectional motion, quiet operation, and long service life. Integrated Encoder The integrated quadrature optical encoder with differential outputs is protected inside the actuator housing and directly coupled to the output shaft. It provides 1.25 microns resolution for closed-loop position and velocity control. Final system accuracy and repeatability also depend on the controller, mechanical installation, load, structural stiffness, and servo tuning. Key Features • 0.500 in. (12.7 mm) linear stroke • 21.2 oz (5.9 N) continuous force • 67.0 oz (18.6 N) intermittent force at 10% duty cycle • Integrated quadrature optical encoder with differential outputs • Low-inertia non-rotating output shaft with plain linear bearings • Direct-drive operation with zero mechanical backlash and no cogging • High acceleration, rapid reversal, quiet operation, and long service life Applications Automation and Handling: Pick-and-place systems, precision assembly, inspection, sorting, and packaging. Semiconductor and Medical: Semiconductor handling, medical procedure equipment, and laboratory automation. Positioning and Actuation: Antenna positioning, dampers, door and valve actuators, agricultural equipment, and adjustable furniture. Mechanical Integration and Control Threaded shaft ends provide direct connection to the load and simplify integration into new and existing mechanisms. For closed-loop operation, use a compatible servo controller and current amplifier selected for the required force, speed, duty cycle, load, and motion profile.
Imperial Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
SDLM-025-070-01-01	0.500	inch	21.2	oz	67.0	oz	2.750	inch
Datasheet in PDF	12.7	mm	5.9	N	18.6	N	69.9	mm
Drawing quick view	Download 3D STEP			Encoder: Integrated quadrature optical encoder with differential outputs Resolution: 1.25 microns Output Shaft: Non-rotating

Metric Model #	Stroke		Continuous Force		Intermittent Force @ 10% Duty Cycle		Housing Length
SDLM-025-070-01-01M	0.500	inch	21.2	oz	67.0	oz	2.750	inch
Datasheet in PDF	12.7	mm	5.9	N	18.6	N	69.9	mm
Drawing quick view	Download 3D STEP			Encoder: Integrated quadrature optical encoder with differential outputs Resolution: 1.25 microns Output Shaft: Non-rotating