Torque Motors
| Category | Description |
|---|---|
| Company Name | AMIT ELECTRICALS |
| Product | Torque Motors |
| Range of Production | 0.25 to 15 Hp (0.18 to 11 KW), Frame 63 to 180L in 2, 4, 6, 8, 10 & 12 Pole |
| Frame | Robust, rugged cast iron frame with integral feet. Aluminum body available up to 100 L frame on request. |
| Insulation | Class F insulation as standard. Class H available on request. |
| Duty | S1 Continuous |
| Voltage and Frequency | 415 ± 5%, 50 Hz ± 3%. Other voltages (220, 380, 460, 525) and frequencies (50 or 60 Hz) available on request. |
| Shaft & Rotor | Positive locking rotor with joint, EN-8 material. Dynamically balanced rotor for low vibration and noise. |
| Protection | Ingress Protection IP44 (IS: 4691). Available with IP-54 and IP-55 on request. |
| Enclosure | T.E.F.C. (Totally Enclosed Fan Cooled) and T.E.S.C. (Totally Enclosed Self Cooled). Forced cooling available for extended life and lower RPM operation. |
| Thermal Over Protection | Available on demand for overload protection (T.O.P Switch). |
| Bearings & Lubrication | C3 ball bearings, lithium-based grease for high temperature lubrication up to 150°C. |
| Terminal Box | Terminal box on top for Foot mounted (B3). Other positions (left or right) available on request. |
| Earthing Terminals | Minimum two earthing terminals (one in terminal box and one at foot). |
| Application | Used in textile industries, wire/cable winding machines, plastic industries, paper mills, steel rolling industries, machine tools, etc. |
| Features | High efficiency Noise-free Vibration-free Durable Smooth finishing Cost-effective Precision design Accurate winding design |
Stall Torque Motor – Delivering Maximum Force When It Matters Most
A Stall Torque Motor is designed to deliver maximum torque when the output shaft is at rest — making it a reliable force in applications that demand immediate power and control. Whether in robotics, electric grippers, or motion control systems, these motors bring unmatched torque performance exactly when and where it’s needed.
What Is Stall Torque?
Stall torque is the amount of torque a motor produces when it’s operating at zero rotational speed. In high-precision environments, this is a critical performance metric — it ensures that the motor can hold or grip with full force at standstill, offering complete control and responsiveness.
Stall torque is especially useful in applications where holding position under load is essential, such as in robotic arms, actuators, and industrial automation systems.
How Stall Torque Is Calculated
In brushless DC (BLDC) motors, the stall torque is determined by understanding the relationship between the torque constant, supply voltage, and phase resistance. The stall torque is directly proportional to the torque constant of the motor and the ratio of the supply voltage to the motor’s internal phase resistance. Mathematically, it is expressed as:
Tstall = kt × (U / R)
Where kt represents the torque constant — a measure of how effectively the motor converts current into torque. The term U refers to the applied supply voltage, and R denotes the phase resistance, which influences the amount of current flowing through the motor.
This theoretical relationship showcases how electrical input is translated into mechanical holding force. Our motors are precisely engineered to optimize this conversion, ensuring that maximum stall torque is available the moment it’s needed — with efficiency, responsiveness, and control at the core of every design.
Why Stall Torque Motors Stand Out
Maximum Torque at Zero Speed
Our motors offer immediate and consistent torque at standstill, ideal for holding, gripping, and starting under load.
Smooth Performance
Designed with optimized phase control and magnetic alignment, these motors provide stable operation without vibration, even at zero speed.
Efficiency-Driven Engineering
By using high-quality winding and magnetic materials, our stall torque motors operate with minimal losses and high thermal stability, ensuring long-term durability.
Applications That Demand Stall Torque Motors
- Robotic Grippers: Secure grip without motion
- Linear Actuators: Controlled start with holding force
- Industrial Automation: Reliable stall performance during press or hold sequences
- Medical Equipment: Quiet, high-precision torque for static load systems
- Smart Material Handling: Stop-and-hold with exact positioning
Every application that needs force without speed benefits from a high-stall torque design.
Advanced Control. Uninterrupted Power.
Our stall torque motors can be paired with both traditional 6-step commutation or field-oriented control (FOC). For users who prioritize smooth operation and maximum efficiency, FOC offers:
- Continuous sinusoidal current
- Stable torque across all rotor positions
- Enhanced low-speed precision
- Quieter performance
This ensures you get optimized torque output and full control, no matter how the motor is driven.
Built to Perform. Built to Last.
With a focus on precision design and thermal performance, our motors are crafted to deliver stall torque with consistency, reliability, and endurance. Key features include:
- High-grade permanent magnets
- Precision-balanced rotors
- Thermally optimized windings
- Compact, rugged housings
Choose Confidence. Choose Control.
A stall torque motor isn’t just about holding power — it’s about the confidence to build better machines. When your application requires zero-speed force, exact positioning, and silent strength, our motors are the solution that empowers innovation.
Why Choose Atlas Electrical?
At Atlas Electrical, we engineer solutions that meet real-world demands. Our stall torque motors are:
- Customizable to your voltage, torque, and size needs
- Tested for reliability across applications and environments
- Supported by engineers who understand precision motion
Ready to find the perfect Stall Torque Motor for your system?
Contact Us today to speak with our application experts.