Precision Motion Product

Non-Captive Hybrid ACME Lead Screw Stepper Motor

High-thrust non-captive hybrid ACME lead screw stepper motor with through-shaft design. Allows unlimited travel stroke for automated machinery, 3D printing, and linear positioning. The non-captive hybrid ACME lead screw stepper motor utilizes an internal rotating...

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Technical Information

Product Details

High-thrust non-captive hybrid ACME lead screw stepper motor with through-shaft design. Allows unlimited travel stroke for automated machinery, 3D printing, and linear positioning.

The non-captive hybrid ACME lead screw stepper motor utilizes an internal rotating nut permanently embedded inside the motor rotor. The ACME lead screw passes completely through the center shaft of the motor body. When the screw is secured to an external carriage that prevents rotation, the screw translates axially through the motor.

This through-shaft linear stepper actuator design offers total flexibility in travel stroke, as the screw length is not restricted by the motor housing. It is the premier choice for long-travel, space-saving linear motion systems in industrial automation.

Key Features & Advantages

Unlimited Travel Stroke: The lead screw passes directly through the motor shaft, enabling stroke lengths tailored to your machine dimensions.
Streamlined Machine Footprint: Eliminates bulky external motor mounts, couplings, and extra support bearings.
High Repeatability & Quiet Operation: Integrates self-lubricating POM anti-backlash nuts for silent motion and bidirectional accuracy.
Wide Torque Spectrum: Available from ultra-compact NEMA 11 up to heavy-duty NEMA 34 motor frames.

Technical Specifications

Feature / Parameter	Standard Specification
Frame Sizes	NEMA 11 (28mm), NEMA 14 (35mm), NEMA 17 (42mm), NEMA 23 (57mm), NEMA 34 (86mm)
Design Type	Non-Captive (Through-Shaft Design)
Screw Material	SUS304 Stainless Steel / Teflon Coated Optional
Screw Diameter	3.5mm, 6.35mm (1/4"), 8mm, 11mm, 15mm
Lead / Pitch Options	1.0mm, 2.0mm, 4.0mm, 8.0mm, 12.7mm per revolution
Backlash	< 0.08 mm (Standard Nut) / < 0.01 mm (Anti-Backlash Nut)
Operating Temperature	-20°C to +50°C
Custom Options	Custom Lead Screw Lengths, Machined End Journals, Encoders

Typical Applications

Desktop 3D Printers & PCB CNC Milling Machines
Automated Sorting Systems & Material Handling
Semiconductor Wafer Processing & Inspection Equipment

Engineering resources

Parameters, Drawings & Performance Data

Use order-specific technical documents for final selection. Published information should be checked against the required operating conditions and mechanical interface.

Technical parameters, drawings and performance data are confirmed against the selected model and operating conditions.

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Information Needed for Model Selection

Application and motion type
Load or required thrust / torque
Speed, travel and acceleration
Accuracy and repeatability target
Duty cycle and operating environment
Installation space and interface drawing
Controller, drive and feedback requirements
Quantity, destination and required documents

Verified series range

Product Family Overview

The values below describe the available family range from Xinding's supplied technical files. Confirm the exact model parameters and drawing before ordering.

Family size range14–86 mm

Step angle1.8°

ConfigurationsCaptive / External / Non-captive

Lead wires4

Available sizes depend on configuration. The supplied range includes 14, 20, 28, 35, 42, 57, 60 and 86 mm products. Screw length and screw-end machining can be specified for applicable models.

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