Description

NEMA 17 Non-Captive Linear Stepper Motor

The NEMA 17 non-captive linear stepper motor is designed for precision positioning and compact automation systems. Its non-captive structure allows the lead screw to move axially through the motor assembly, supporting flexible stroke design without the fixed travel limitations of conventional captive linear actuators.

Powered by hybrid stepper technology, this motor provides controlled linear displacement for laboratory instruments, optical equipment, semiconductor machinery, and precision assembly systems. Custom lead screw specifications and connection options are available for OEM and ODM applications.

Key Features and Benefits

Non-Captive Lead Screw Design: The open architecture allows the lead screw to pass through the motor, supporting application-specific travel requirements.
Precise Linear Positioning: Hybrid stepper technology enables controlled incremental movement for automated positioning tasks.
Flexible Lead Screw Configuration: Different screw leads and lengths can be selected to balance travel speed, thrust, and positioning requirements.
Microstepping Compatibility: Compatible drive systems can support smoother motion and finer incremental control, depending on the motor and driver configuration.
Compact Integration: The NEMA 17 frame helps simplify integration into space-constrained automation equipment.
OEM and ODM Customization: Lead screw dimensions, connection styles, and other configuration details can be tailored to project requirements.

Technical Advantages for Precision Motion Systems

Controlled Linear Movement

The motor converts stepper rotation into linear displacement through its lead screw mechanism. This makes it suitable for applications requiring repeatable positioning, controlled movement, and programmable travel.

Actual positioning accuracy and repeatability depend on the selected screw configuration, driver settings, mechanical assembly, load conditions, and control system.

Flexible Travel and Speed Configuration

The non-captive design allows the screw to travel through the motor body, making it suitable for systems that require a long or application-specific stroke. The achievable travel is determined by the external mechanical layout and available screw length rather than a fixed internal stroke.

Different lead screw leads provide flexibility when balancing linear speed, thrust, and resolution. A suitable configuration should be selected according to the application’s load and movement profile.

Smooth Operation with Microstepping Drives

When paired with a compatible microstepping driver, the motor can support finer command increments and smoother motion. System-level performance also depends on drive current, operating speed, load inertia, mechanical friction, and resonance control.

These characteristics make the motor a practical option for motion platforms and automated equipment that require controlled linear movement.

Manufacturing Quality and Customization

The motor uses permanent magnet rotor technology and a precision-laminated stator core to support electromagnetic performance and stable operation.

Manufacturing and quality control processes may include dimensional inspection, electrical testing, performance verification, and operational testing according to the agreed product specification. Surface treatment options can also be evaluated based on the intended operating environment.

For OEM and ODM projects, available customization options include:

Lead screw lead and length
Screw-end and connection configurations
Motor and mechanical interface requirements
Electrical and drive compatibility requirements
Application-specific performance targets

Final specifications should be confirmed through technical review and sample validation before mass production.

Typical Applications

The NEMA 17 non-captive linear stepper motor can be integrated into a variety of precision motion systems, including:

Laboratory and Analytical Instruments: Automated sample positioning and controlled adjustment mechanisms
Optical Equipment: Linear adjustment stages and optical component positioning
Semiconductor Equipment: Compact motion assemblies and precision handling mechanisms
Precision Assembly Systems: Programmable linear positioning and component alignment
Compact Automation Equipment: Space-efficient mechanisms requiring configurable travel

Application suitability depends on required thrust, stroke, speed, duty cycle, mounting conditions, and positioning performance.

OEM and ODM Linear Stepper Motor Solutions

Choosing the right non-captive linear stepper motor requires more than matching the NEMA frame size. Buyers should also evaluate screw lead, available travel, load requirements, operating speed, driver compatibility, mounting interfaces, and environmental conditions.

Our OEM and ODM services support customized lead screw configurations and mechanical interfaces for specific equipment designs. Share your application requirements to evaluate a suitable NEMA 17 non-captive linear stepper motor configuration.

Nema17 Non-Captive Linear Stepper Motor Specifications

Product Name: Nema17 Non-Captive Linear Stepper Motor
Motor Type: 2-Phase Hybrid Linear Stepper Motor
Configuration: Non-Captive External Lead Screw Design
Frame Size: 42 × 42 mm
Motor Body Length: 34 mm / 40 mm / 48 mm / 60 mm optional
Step Angle: 1.8° (200 steps per revolution)
Lead Screw Diameter: Φ5 mm
Lead Screw Material: Precision Rolled Stainless Steel Screw
Lead Options: 1 mm / 2 mm / 4 mm / 8 mm
Linear Resolution: Up to 0.005 mm per step
Holding Torque: 0.22~0.65 N·m
Maximum Linear Force: 30~180 N
Rated Current: 1.0~2.0 A/phase
Phase Resistance: 1.4~6.8 Ω
Phase Inductance: 1.8~5.5 mH
Rated Voltage: 12~48 VDC
Repeatability Accuracy: ±0.015 mm
Axial Backlash: ≤0.03 mm
Insulation Resistance: 100 MΩ Minimum at 500 VDC
Insulation Class: Class B (130°C)
Protection Rating: IP40
Operating Temperature: -20°C to +50°C
Service Life: More than 5 million reciprocating cycles
Mounting Method: Standard NEMA 17 mounting pattern
Optional Features: Anti-rotation mechanism, encoder, custom screw length
Typical Applications: Semiconductor equipment, automated inspection systems, laboratory automation, optical positioning platforms, and medical devices