About ECM-E3M-E21320SSE Delta Servo Motor + B 2000W M , Torque Nm - 9.55 , RPM - 2000
The ECM-E3M-E21320SSE is the
2000W (2.0kW) Medium Inertia version of Delta's ASDA-E3 series motors, featuring a built-in
electromagnetic holding brake. It is designed to handle high-torque demands with the added safety of a physical locking mechanism. [
1,
2]
Physical Dimensions & Weight
This motor utilizes a standard
130mm frame. The addition of the brake increases the length and weight compared to the standard model. [
1,
2]
| Dimension [1, 2, 4] |
Metric (mm) |
Imperial (Inches) |
| Width (Frame) |
130 mm |
5.12 in |
| Height (Frame) |
130 mm |
5.12 in |
| Body Length (L) |
223 mm |
8.78 in |
| Shaft Length (LR) |
55 mm |
2.17 in |
| Shaft Diameter (S) |
22 mm |
0.87 in |
| Total Weight |
10.1 kg |
22.27 lbs |
Note: Dimensions are estimated based on standard E3 2kW frame increments. [
1]
Key Functions
- Static Holding: The internal 24VDC electromagnetic brake is specifically designed for holding the shaft in place when power is removed. It provides a holding torque equal to or greater than the motor's rated torque to prevent vertical (Z-axis) loads from slipping.
- Massive Continuous Force: Delivering a constant 9.55 N-m of torque, it is functional for heavy-duty applications where significant "pushing" power is required.
- High-Resolution Precision: Features a 24-bit resolution encoder, providing over 16.7 million pulses per revolution for ultra-smooth rotation and micron-level accuracy.
- Stability for Heavy Loads: The medium inertia design acts as a mechanical buffer, preventing vibrations when coupled to heavy mechanical loads like massive ball screws or gantry systems. [1, 2, 4]
Technical Summary
- Rated Torque: 9.55 N-m (Peak: 28.65 N-m).
- Rated Speed: 2000 RPM (Max: 3000 RPM).
- Voltage: 220V AC (3-Phase).
- Protection: Rated IP65/IP67 for durability in dusty or oily environments.
The Delta ECM-E3M-E21320SSE functions as a high-torque, industrial-grade actuator designed for heavy mechanical loads, providing precise motion control with an integrated safety holding mechanism. [
1,
2]
Core Operations
- Static Holding (Safety): The "SSE" designation indicates a built-in electromagnetic holding brake. Its primary function is to lock the motor shaft when power is removed, preventing heavy vertical (Z-axis) loads from dropping due to gravity during an emergency stop or power failure.
- Precision Positioning: Equipped with a 24-bit resolution encoder (delivering over 16.7 million pulses per revolution), the motor provides ultra-smooth motion and sub-micron positioning accuracy.
- High Force Delivery: It provides a massive continuous rated torque of 9.55 N-m, with the ability to handle peak loads up to 28.6 N-m during rapid acceleration.
- Medium Inertia Stability: The heavier internal rotor acts as a mechanical buffer. It is specifically designed to handle systems where the mechanical load is significantly heavier than the motor, reducing vibration and "jitter" common in lighter motors. [1, 2, 3, 4, 5]
Industrial Applications
This motor is the "heavy-lifter" for several specific industries: [
1,
2]
- Large CNC Machining: Driving heavy X, Y, or Z axes on large-format milling, stone cutting, or metal machining centers where high cutting forces are present.
- Robotics & Material Handling: Powering primary joints of large industrial robotic arms or high-capacity "pick-and-place" systems.
- Textile & Printing: Managing high-tension winding and unwinding processes where constant torque is critical for product quality.
- Packaging Machinery: Operating heavy-duty palletizers, conveyors, and wrapping systems. [1, 2, 3]
Functional Summary
| Feature [1, 2, 3] |
Function / Advantage |
| 2000W Power |
High-capacity output for demanding mechanical tasks. |
| 9.55 N-m Torque |
Strong continuous force for moving heavy loads. |
| Response Bandwidth |
2.5 kHz for ultra-fast reaction and correction. |
| Protection Rating |
Typically IP67 for durability in dusty or wet environments. |