Coreless motors, also known as hollow cup motor, are a specialized type of DC motor that offer several advantages over traditional brushed motors. These motors are characterized by their unique design, which eliminates the iron core in the rotor, resulting in a lightweight, high-efficiency, and low-inertia motor. This makes them ideal for applications requiring rapid acceleration, precise control, and compact size. Below, we will explore some of the common models and series of coreless motors available in the market.
---
### **1. FAULHABER Series**
FAULHABER is a renowned manufacturer of high-precision coreless motors. Their motors are widely used in medical devices, robotics, and aerospace applications. Some popular models include:
- **FAULHABER 2224 SR Series**: This series features a compact design with a diameter of 22 mm and a length of 24 mm. It offers high torque and efficiency, making it suitable for applications like drones and miniature robotics.
- **FAULHABER 3257 CR Series**: With a larger diameter of 32 mm and a length of 57 mm, this model provides higher power output and is often used in industrial automation and medical equipment.
---
### **2. MAXON Motors**
MAXON is another leading brand in the coreless motor industry. Their motors are known for their precision and reliability. Key models include:
- **MAXON RE Series**: The RE series includes a range of coreless motors with diameters from 6 mm to 35 mm. These motors are widely used in robotics, prosthetics, and optical devices.
- **MAXON EC Series**: This series features brushless coreless motors, offering even higher efficiency and longer lifespan. They are commonly used in high-performance applications like drones and electric vehicles.
---
### **3. NANOTEC Series**
NANOTEC specializes in compact and cost-effective coreless motors. Their models are popular in consumer electronics and small-scale automation. Examples include:
- **NANOTEC DB Series**: This series offers motors with diameters ranging from 12 mm to 36 mm. They are known for their smooth operation and low noise, making them ideal for camera systems and small robotic arms.
- **NANOTEC CL Series**: These motors are designed for high-speed applications, such as CNC machines and 3D printers.
---
### **4. Portescap Series**
Portescap is a global leader in miniature coreless motors. Their products are widely used in medical and industrial applications. Notable models include:
- **Portescap 16DCT Series**: With a diameter of 16 mm, this series is designed for high-speed and high-efficiency applications, such as surgical tools and laboratory equipment.
- **Portescap 22N Series**: This series features a 22 mm diameter and is known for its high torque density, making it suitable for robotics and automation systems.
---
### **5. MABUCHI Motors**
MABUCHI is a well-known manufacturer of small coreless motors, particularly for consumer electronics. Their models include:
- **MABUCHI RF-500TB Series**: This series is widely used in toys, cameras, and small appliances due to its compact size and low cost.
- **MABUCHI RE-280 Series**: With a slightly larger size, this series is suitable for applications requiring moderate power, such as power tools and automotive accessories.
---
### **6. CORELESS MOTOR Custom Models**
In addition to standard models, many manufacturers offer custom coreless motors tailored to specific applications. These motors can be designed with unique dimensions, voltage ratings, and performance characteristics to meet the needs of specialized industries.
---
### **Advantages of Coreless Motors**
- **High Efficiency**: The absence of an iron core reduces energy losses, resulting in higher efficiency.
- **Low Inertia**: The lightweight rotor allows for rapid acceleration and deceleration.
- **Compact Size**: Coreless motors are often smaller and lighter than traditional motors, making them ideal for portable devices.
- **Smooth Operation**: The design minimizes vibration and noise, ensuring smooth performance.
---
### **Applications of Coreless Motors**
Coreless motors are used in a wide range of industries, including:
- **Medical Devices**: Surgical tools, infusion pumps, and diagnostic equipment.
- **Robotics**: Robotic arms, drones, and autonomous vehicles.
- **Consumer Electronics**: Cameras, smartphones, and wearable devices.
- **Aerospace**: Satellite systems and UAVs (Unmanned Aerial Vehicles).
---
### **Conclusion**
Coreless motors are a versatile and efficient solution for many modern applications. With a variety of models available from leading manufacturers like FAULHABER, MAXON, NANOTEC, Portescap, and MABUCHI, engineers and designers can choose the perfect motor to meet their specific needs. Whether for high-speed, high-precision, or compact applications, coreless motors continue to play a critical role in advancing technology across industries.
