Linear Stepper Motor integrates stepper rotor and lead‑screw mechanism, converting rotary motion directly into linear thrust output, available in non‑captive, captive and external drive types. Following NEMA standard frame sizes, this Linear Stepper Motor delivers precise open‑loop linear point‑to‑point positioning. Widely used in medical analyzers, inspection instruments, 3D printers, small transfer mechanisms and automatic dispensing equipment, it eliminates external screw modules and greatly simplifies machine mechanical design.
Integrated Motor‑Screw One‑Piece Structure
Linear Stepper Motor combines lead screw and motor rotor as one unit. No couplings or bearing housings are required. Rotation of motor generates linear displacement directly, cutting intermediate transmission clearance and saving machine installation space.
Multiple Structure Types for Various Mounting Solutions
Linear Stepper Motor offers three mainstream configurations: Non‑Captive, Captive and External drive. It supports diverse mechanical layouts such as moving‑nut load travel, extendable screw stroke and fixed‑screw moving‑nut operation.
Standard 1.8° Step Angle & Full NEMA Frame Coverage
Linear Stepper Motor adopts industry‑standard 1.8‑degree step angle with 200 steps per revolution. It covers NEMA8, NEMA11, NEMA17, NEMA23, NEMA34 frame sizes. Standardized mechanical dimensions facilitate machine design and spare‑part replacement.
Multiple Screw Lead Options for Speed & Accuracy Balance
Linear Stepper Motor supports trapezoidal lead screw and ball screw with diverse lead selections. Large‑lead variants realize fast feed movement while small‑lead types achieve micro‑level fine feed to match speed and precision requirements.
Smooth Low‑Noise Operation for Lab & Instrument Applications
Precision‑ground screw enables Linear Stepper Motor to run smoothly with low vibration and noise. It fits medical analyzers and optical inspection devices sensitive to operating noise.
High‑Temperature‑Resistant Full‑Copper Winding for Continuous Start‑Stop Cycles
Linear Stepper Motor adopts full‑copper winding with high insulation class and excellent thermal resistance. It supports long‑time repeated reciprocating operation for non‑stop factory automation production.
| Linear Stepper Motor | |
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Dimensions |
Nema 8(20mm), 11(28mm), 14(35mm), 16(39mm), 17(42mm), 23(57mm), 24(60mm), 34(86mm) |
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Step Angle |
Degree 0.9, 1.2, 1.8(Optional or Customized) |
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Torque |
Up to 350mNm without gearbox |
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Rated Current |
0.1A~10A (A/Phase) |
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Gear type |
Planetary gear motor, worm gear motor, helical gear motor |
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Can be used with |
Planetary gearbox, worm gearbox, helical gearbox |
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Package |
carton/wooden box |
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HS codes |
8501109190 |
Q: What main structure types does Linear Stepper Motor have?
A: Linear Stepper Motor includes Non‑Captive, Captive and External drive types. Please select according to your mechanical mounting layout.
Q: Can Linear Stepper Motor maintain thrust after power‑off?
A: Holding thrust of Linear Stepper Motor exists only under power‑on condition. No self‑locking after power loss. External mechanical lock is recommended for vertical push‑pull loads.
Q: What kind of driver works with Linear Stepper Motor?
A: Linear Stepper Motor is compatible with standard 2‑phase stepper drivers. High‑current driver is suggested for heavy‑load ball‑screw models to fully utilize thrust output of the Linear Stepper Motor.
Q: Can the screw shaft of Linear Stepper Motor bear large radial side force?
A: Linear Stepper Motor is designed mainly for axial push‑pull load. Large radial force is not allowed. External guide mechanism is required to protect screw and motor bearings when side load cannot be avoided.
Q: What repeat positioning accuracy can Linear Stepper Motor reach?
A: Standard trapezoidal‑screw Linear Stepper Motor achieves ±0.05 mm repeat positioning. Ball‑screw version with pre‑loaded nut reaches ±0.02 mm for high‑precision instrument applications.
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