A hollow shaft stepper motor is a specialized type of stepper motor characterized by a central hole in its shaft. This design allows various components, like cables and other mechanical elements, to traverse through the motor’s center, making it particularly useful in applications that prioritize space efficiency and seamless integration in industrial and robotic environments.
In contrast to conventional stepper motors, which feature a solid shaft, hollow shaft motors facilitate direct coupling with other components and can seamlessly integrate into complex systems without requiring extra adapters or connectors. The defining aspect of these motors is their hollow shaft, which promotes a more streamlined and effective setup.
Constructed as a hollow metal tube, the shaft is lighter than its solid counterparts, contributing to reduced overall weight. Hollow shaft stepper motors are versatile and find applications across a variety of fields. Their advantages include minimized size and noise, multipurpose capability, cost-effectiveness, straightforward manufacturing, and ease of use.
Model | Step Angle | Phase | Shaft | Wires | Body Length | Current | Resistance | Inductance | Holding Torque | Leads No | Rotor Inertia | Weight |
(°) | / | / | / | (L)mm | A | Ω | h | N.cm | No. | g.cm2 | Kg | |
JK20HSH30-0604 | 1.8 | 2 | hollow shaft | Connector | 30 | 0.6 | 6.5 | 1.7 | 1.8 | 4 | 2 | 0.05 |
JK20HSH38-0604 | 1.8 | 2 | hollow shaft | Connector | 38 | 0.6 | 9 | 3 | 2.2 | 4 | 3 | 0.08 |
Model | Step Angle | Phase | Shaft | Wires | Body Length | Current | Resistance | Inductance | Holding Torque | Leads No. | Rotor Inertia | Weight |
(°) | / | / | / | (L) mm | A | Ω | h | N.cm | No. | g.cm2 | Kg | |
JK28HSH32-0674 | 1.8 | 2 | hollow shaft | Lead wire | 32 | 0.67 | 5.6 | 3.4 | 6 | 4 | 9 | 0.11 |
JK28HSH45-0674 | 1.8 | 2 | hollow shaft | Lead wire | 45 | 0.67 | 6.8 | 4.9 | 9.5 | 4 | 12 | 0.14 |
JK28HSH51-0674 | 1.8 | 2 | hollow shaft | Lead wire | 51 | 0.67 | 9.2 | 7.2 | 12 | 4 | 18 | 0.2 |
Model | Step Angle | Phase | Shaft | Wires | Body Length | Current | Resistance | Inductance | Holding Torque | Leads No. | Rotor Inertia | Weight |
(°) | / | / | / | (L)mm | A | Ω | h | N.cm | No. | g.cm2 | Kg | |
JK35HSH28-0504 | 1.8 | 2 | hollow shaft | Lead wire | 28 | 0.5 | 20 | 14 | 10 | 4 | 11 | 0.13 |
JK35HSH34-1004 | 1.8 | 2 | hollow shaft | Lead wire | 34 | 1 | 2.7 | 4.3 | 14 | 4 | 13 | 0.17 |
JK35HSH42-1004 | 1.8 | 2 | hollow shaft | Lead wire | 42 | 1 | 3.8 | 3.5 | 20 | 4 | 23 | 0.22 |
Model | Step Angle | Phase | Shaft | Wires | Body Length | Current | Resistance | Inductance | Holding Torque | Leads No. | Rotor Inertia | Weight |
(°) | / | / | / | (L)mm | A | Ω | h | N.cm | No. | g.cm2 | Kg | |
JK42HSH34-1334 | 1.8 | 2 | hollow shaft | Lead wire | 34 | 1.33 | 2.1 | 2.5 | 26 | 4 | 34 | 0.22 |
JK42HSH40-1704 | 1.8 | 2 | hollow shaft | Lead wire | 40 | 1.7 | 1.5 | 2.3 | 42 | 4 | 54 | 0.28 |
JK42HSH48-1684 | 1.8 | 2 | hollow shaft | Lead wire | 48 | 1.68 | 1.65 | 2.8 | 44 | 4 | 68 | 0.35 |
JK42HSH60-1704 | 1.8 | 2 | hollow shaft | Connector | 60 | 1.7 | 3 | 6.2 | 7.3 | 4 | 102 | 0.55 |
Model | Step Angle | Phase | Shaft | Wires | Body Length | Current | Resistance | Inductance | Holding Torque | Leads No. | Rotor Inertia | Weight |
(°) | / | / | / | (L)mm | A | Ω | hh | Nm | No. | g.cm2 | Kg | |
JK57HSH41-2804 | 1.8 | 2 | hollow shaft | Lead wire | 41 | 2.8 | 0.7 | 1.4 | 0.55 | 4 | 150 | 0.47 |
JK57HSH51-2804 | 1.8 | 2 | hollow shaft | Lead wire | 51 | 2.8 | 0.83 | 2.2 | 1.01 | 4 | 230 | 0.59 |
JK57HSH56-2804 | 1.8 | 2 | hollow shaft | Lead wire | 56 | 2.8 | 0.9 | 2.5 | 1.26 | 4 | 280 | 0.68 |
JK57HSH76-2804 | 1.8 | 2 | hollow shaft | Lead wire | 76 | 2.8 | 1.1 | 3.6 | 1.89 | 4 | 440 | 1.1 |
JK57HSH82-3004 | 1.8 | 2 | hollow shaft | Lead wire | 82 | 3.0 | 1.2 | 4.0 | 2.1 | 4 | 600 | 1.2 |
JK57HSH100-3004 | 1.8 | 2 | hollow shaft | Lead wire | 100 | 3.0 | 0.75 | 3.0 | 3.0 | 4 | 700 | 1.3 |
JK57HSH112-3004 | 1.8 | 2 | hollow shaft | Lead wire | 112 | 3.0 | 1.6 | 7.5 | 3.0 | 4 | 800 | 1.4 |
Model | Step Angle | Phase | Shaft | Wires | Body Length | Current | Resistance | Inductance | Holding Torque | Leads No. | Rotor Inertia | Weight |
(°) | / | / | / | (L)mm | A | Ω | hh | Nm | No. | g.cm2 | Kg | |
JK86HSH78-6004 | 1.8 | 2 | hollow shaft | Lead wire | 78 | 6.0 | 0.37 | 3.4 | 4.6 | 4 | 1400 | 2.3 |
JK86HSH115-6004 | 1.8 | 2 | hollow shaft | Lead wire | 115 | 6.0 | 0.6 | 6.5 | 8.7 | 4 | 2700 | 3.8 |
JK86HSH126-6004 | 1.8 | 2 | hollow shaft | Lead wire | 126 | 6.0 | 0.58 | 6.5 | 9.5 | 4 | 3200 | 4.5 |
JK86HSH155-6004 | 1.8 | 2 | hollow shaft | Lead wire | 155 | 6.0 | 0.68 | 9.0 | 13.0 | 4 | 4000 | 5.4 |
The standout feature of hollow shaft stepper motors is their hollow center, which allows for easy routing of cables and other mechanical components. This design reduces clutter and saves valuable space.
Despite the hollow shaft, these motors retain a compact profile, delivering high torque and performance while minimizing their footprint in the system.
The hollow design enables direct coupling with various mechanical elements, such as gearboxes and actuators, streamlining integration and enhancing operational efficiency.
These motors are ideal for setups where other components, like wiring or optical systems, need to pass through the center. This ensures a more organized and cleaner design.
Hollow shaft stepper motors offer precise and smooth step-by-step motion control, making them suitable for applications requiring high accuracy and reliability.
How Hollow Shaft Stepper Motors Work
Hollow shaft stepper motors operate similarly to traditional stepper motors, but they benefit from their unique shaft design. Here’s a breakdown of their operation:
The motor receives control signals that dictate movement, whether it be position or speed.
Inside the motor, a configuration of permanent magnets and windings generates torque, enabling the rotor to rotate in precise steps.
The rotor features a hollow shaft that allows for the passage of additional components, like cables or other mechanical systems. This design simplifies integration into confined spaces.
The motor rotates incrementally, with each step correlating to a specific mechanical increment, allowing for precise control of both position and speed without interference from passing components.
The central hollow area allows other components to pass through, minimizing the space required for installation and facilitating compact system designs.
The unique design reduces the need for additional adapters or connectors, making integration into complex mechanical systems straightforward.
Hollow shaft stepper motors can deliver impressive torque levels comparable to solid shaft motors, making them suitable for high-performance applications.
By eliminating the need for extra couplings, these motors simplify mechanical designs, resulting in fewer parts and enhanced reliability.
The capability to route cables through the hollow shaft maintains an organized setup, which is critical for efficient operation and minimal maintenance in automated environments.
Hollow shaft stepper motors are versatile and find use in a variety of industries, especially where compactness and high performance are necessary:
Used in robotic arms and grippers, their hollow design integrates sensors and cables, simplifying complexity and contributing to compactness.
These motors power tools and axes in CNC setups, facilitating cleaner installations and reducing the need for additional components.
Commonly employed to control the movement of print heads or build platforms, the compact design ensures an organized system crucial for successful 3D printing.
They drive belts and components in conveyor systems, with the hollow shaft enabling effective routing of power and control cables.
Essential in devices like MRI machines and surgical robots, their precision and compactness allow for efficient and clean setups in sensitive environments.
Used to drive lenses and mirrors, the hollow shaft allows routing of optical fibers or cables, simplifying designs and maintaining system efficiency.
Hollow shaft stepper motors stand out in applications that require compactness, high torque, and effortless integration. Their design not only simplifies mechanical setups but also enhances performance across various sectors, from robotics to medical equipment. Understanding these capabilities enables businesses to leverage this technology for optimized systems in modern automation demands.
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