About ECM-E3M-E21320RSE Delta Servo Motor 2000W M , Torque Nm - 9.55 , RPM - 2000
The Delta ECM-E3M-E21320RSE is a high-torque
2.0kW (2000W) Medium Inertia servo motor. This is the top-tier motor in the 130mm frame class, offering maximum "pushing power" for heavy-duty industrial machinery. [
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Core Specifications
- Rated Power: 2000W (2.0 kW)
- Rated Torque: 9.55 N-m (Continuous)
- Max (Peak) Torque: 28.65 N-m (Massive short-term force)
- Rated Speed: 2000 RPM
- Maximum Speed: 3000 RPM
- Inertia Type: Medium Inertia (15.53 10 kgm)
- Encoder: 24-bit high-resolution (16.7M pulses/rev) [1, 2, 3, 4, 5]
Physical Dimensions (Inches)
Despite the jump in power, it maintains the
130mm frame standard but is the longest motor in this category. [
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| Dimension [1, 2] |
Metric (mm) |
Imperial (Inches) |
| Width (Frame) |
130 mm |
5.12 in |
| Height (Frame) |
130 mm |
5.12 in |
| Body Length (L) |
187 mm |
7.36 in |
| Shaft Length (LR) |
55 mm |
2.17 in |
| Shaft Diameter (S) |
22 mm |
0.87 in |
Weight
- Net Weight: Approximately 8.2 kg (18.08 lbs). [1]
Key Functions
- Maximum Power Density: Delivers nearly 10 N-m of constant torque. It is designed for the most demanding mechanical loads, such as large CNC gantries, heavy-duty industrial mixers, and high-capacity winding machines.
- Superior Load Handling: The medium inertia design functions as a critical buffer, allowing the motor to maintain perfectly smooth motion even when the mechanical load is significantly heavier than the motor itself.
- High IP Rating: Usually rated IP67, ensuring it functions reliably in harsh industrial environments with dust, oil, or water spray.
The Delta ECM-E3M-E21320RSE functions as a high-torque, industrial-grade actuator designed to handle massive mechanical loads with absolute precision. As a
2000W (2.0kW) Medium Inertia motor, its primary role is to bridge the gap between high-speed movement and heavy-duty force. [
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Core Operations
- Massive Torque Delivery: It provides a continuous rated torque of 9.55 N-m, with the ability to surge to a peak torque of 28.65 N-m. This allows it to initiate movement in heavy, static mechanical systems that would stall smaller motors.
- Inertia Buffering: The "Medium Inertia" rotor acts as a mechanical flywheel. Its function is to stabilize the system when coupled to large, heavy loads (like massive ball screws or gantry arms), preventing the high-frequency vibrations or "jitter" that can occur with low-inertia motors.
- Precision Control: Despite its high power, it functions with micron-level accuracy. Its 24-bit optical encoder feeds back over 16.7 million pulses per revolution to the drive, ensuring the motor stays exactly on its commanded path.
- High-Bandwidth Response: When paired with an E3 Series Drive, it features a 2.5 kHz response bandwidth. This allows the motor to correct its position or speed 2,500 times per second, which is essential for maintaining accuracy during high-speed industrial cycles. [1, 2]
Primary Industrial Applications
This motor is the "heavy-lifter" for several specific industries: [
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- Large CNC Machining: Driving the heavy X or Y axis of large-scale milling, stone cutting, or metal machining centers where high cutting forces are present.
- Robotics & Material Handling: Powering the primary joints of large industrial robotic arms or high-capacity "pick-and-place" systems.
- Textile & Printing: Managing high-tension winding and unwinding processes where maintaining constant torque is critical for product quality.
- Packaging Machinery: Operating heavy-duty palletizers, conveyors, and wrapping systems. [1, 2]
Functional Summary
| Feature [1, 2, 3, 4, 5] |
Function / Advantage |
| 2.0kW Power |
High-capacity output for demanding mechanical tasks. |
| 9.55 N-m Torque |
Strong continuous force for moving heavy loads. |
| 24-bit Encoder |
Ultra-fine positioning with 16.7M pulses/rev. |
| IP67 Rating |
Durable enough for environments with dust, oil, and moisture |