Miniature Frameless Rotary Motor
Product Description
As a high-tech motor manufacturer specializing in precision motion control solutions, we have focused on the development and manufacturing of compact direct-drive motors since 1987. The Miniature Frameless Rotary Motor is specially designed for equipment with limited installation space, providing stable torque output while significantly reducing motor size.
Unlike traditional rotary motors with bulky housings, this compact frameless motor adopts a lightweight and integrated design. The reduced stator outer diameter allows easy installation into small automation equipment, while the hollow through-hole structure provides convenient space for cable routing and internal mechanical design optimization.

Our 16,000㎡ standardized production facility is equipped with fully automated stator winding, assembly, and precision inspection equipment. With 125 professional employees covering R&D, manufacturing, and quality control, every Miniature Frameless Rotary Motor undergoes 100% inspection before shipment to ensure stable performance and reliability.
With a monthly production capacity of 30,000 units, we provide consistent supply capability for overseas distributors, small automation equipment manufacturers, and robotic system integrators. The motor adopts lightweight silicon steel materials to reduce overall system weight, while the low cogging torque design ensures smooth operation at low speeds with minimal vibration.
The Miniature Frameless Rotary Motor is covered by an 18-month warranty covering all major components. We provide remote technical support for electrical selection, motor integration, and communication protocol matching. Standard models can be delivered within 7-14 days, while customized samples can be developed within 15-45 days.
We support OEM/ODM customization and mixed model orders starting from 50 units. Different sizes and specifications can be combined in one order, helping overseas customers reduce initial inventory pressure. Our miniature frameless motors have been exported in batches to medical equipment manufacturers, small robotic companies, and precision automation enterprises in Japan, South Korea, Southeast Asia, and other markets.
Specifications
|
Parameter |
Standard Specification |
|
Product Model |
Miniature Frameless Rotary Motor 40/52/60/70 Series |
|
Outer Diameter |
40mm~70mm Compact Design |
|
Continuous Torque Range |
0.2~5Nm |
|
Rated Voltage |
24V Low Voltage Standard |
|
Inner Diameter |
12~30mm Hollow Through Hole |
|
Cogging Torque |
≤1% Rated Torque |
Applications
- Miniature collaborative robotic arms
- Portable medical inspection equipment
- Laboratory precision rotary instruments
- Small humanoid robot wrist joints
- 3C precision assembly fixtures
- Desktop CNC engraving machines
- Miniature automated inspection platforms

Customization
We provide OEM and ODM customization services for Miniature Frameless Rotary Motor solutions.
According to customers' installation requirements and technical drawings, we can customize:
- Motor outer diameter
- Hollow shaft diameter
- Winding parameters
- Torque output
- Voltage requirements
- Low-power operating characteristics
Customized sample development takes 15-45 days. A 50-unit MOQ supports mixed models and different sizes within one order.
We can also develop matching miniature driver boards and control solutions according to customers' equipment requirements.
Packaging & Shipping
Each miniature motor is individually packed with moisture-proof bubble protection and standard export cartons.
For large-volume shipments, fumigation-free wooden cases can be provided for additional protection.
All shipments are covered by international transportation insurance. In case of logistics damage, claims can be processed according to transportation documents.
Supported trade terms:
- EXW
- FOB
- DDP
Payment currency: USD.
Standard orders require 30% advance payment, while customized motors require 50% advance payment. The balance is paid against the bill of lading copy.
FAQ
Q: 1. What is the lead time for standard Miniature Frameless Rotary Motor?
A: Standard miniature frameless motors can be delivered within 7 to 14 working days.
Q: 2.How do you control the quality of Miniature Frameless Rotary Motor products?
A: Our technical and quality teams establish product quality responsibility records for each model, and every motor undergoes complete inspection before shipment.
Q: 3. What happens if the Miniature Frameless Rotary Motor is damaged during transportation?
A: All shipments are covered by international transportation insurance, and compensation can be claimed according to shipping terms.
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