About ECM-E3M-E21310SSE Delta Servo Motor + B 1000W M , Torque Nm - 4.77 , RPM - 2000
The ECM-E3M-E21310SSE is the 1000W (1kW) Medium Inertia version of the Delta E3 series, featuring a built-in electromagnetic holding brake ("S" suffix). It is designed for heavy-duty applications, particularly those involving vertical loads.
1. Physical Dimensions (Inches)
The 1kW motor uses a large 130mm frame. The addition of the brake makes this unit significantly longer and heavier than the standard version.
| Dimension |
Metric (mm) |
Imperial (Inches) |
| Width (Frame) |
130 mm |
5.12 in |
| Height (Frame) |
130 mm |
5.12 in |
| Body Length (L) |
183 mm |
7.20 in |
| Shaft Length (LR) |
55 mm |
2.17 in |
| Shaft Diameter (S) |
22 mm |
0.87 in |
2. Weight
- Net Weight: Approximately 7.5 kg (16.53 lbs).
- Note: The brake adds about 2.2 kg (4.8 lbs) compared to the non-brake model.
3. Key Functions
- Vertical Axis Safety: This motor is the standard choice for heavy Z-axis applications. The internal brake provides 10 N-m of holding torque (over double the motor's rated torque), ensuring that heavy spindles or tool heads do not drop during a power failure.
- High-Torque Performance: It delivers a constant 4.77 N-m of torque, specifically optimized for a rated speed of 2000 RPM, providing more "pushing power" at lower speeds.
- Inertia Buffering: The medium-inertia rotor makes it much easier to tune when connected to heavy mechanical loads, preventing the vibrations or high-frequency humming often found in low-inertia systems.
4. Technical Specifications
- Rated Power: 1000 W (1.0 kW)
- Peak Torque: 14.31 N-m
- Encoder: 24-bit resolution (16.7 million pulses/rev)
- Protection: IP67 (dust-tight and water-resistant)
- Brake Power: Requires a 24VDC power supply (approx. 19W consumption).
The Delta ECM-E3M-E21310SSE is a heavy-duty 1000W (1kW) medium-inertia servo motor. Its primary function is to provide high-torque motion control with an integrated safety system for heavy industrial loads.
Core Functions
- Safety Holding (Vertical Axis): The "SSE" designation indicates a built-in electromagnetic holding brake. Its most critical function is to lock the motor shaft when power is removed, preventing heavy vertical loads (like a Z-axis milling head) from crashing down due to gravity during an emergency stop or power failure.
- High Torque Delivery: It functions as a "powerhouse," delivering a continuous 4.77 N-m of torque. It is specifically designed to move heavy mechanical partssuch as large ball screws or high-capacity conveyorsthat require more force than standard 400W or 750W motors.
- Low-Speed Stability: While most smaller motors are rated for 3000 RPM, this motor is optimized for 2000 RPM. This allows it to provide more stable, consistent torque at lower speeds, which is ideal for heavy-duty cutting, grinding, or lifting.
- Medium Inertia Smoothing: The heavier internal rotor functions as a mechanical stabilizer. It is designed to handle systems where the mechanical load is much heavier than the motor itself, reducing the vibrations and "jitter" often seen in high-speed, low-inertia motors.
- Closed-Loop Precision: Despite its size and power, it uses a 24-bit encoder (16.7 million pulses/rev). This ensures that even a 100kg load can be positioned with micron-level accuracy.
Functional Specifications Summary
| Feature |
Function/Value |
| Rated Power |
1000W (High-power actuator) |
| Rated Torque |
4.77 N-m (Continuous force) |
| Brake Torque |
10.0 N-m (Holds >2x the rated load) |
| Response |
2.5 kHz (Ultra-fast error correction) |
| Protection |
IP67 (Operates in dusty or wet environments) |
Common Applications
- Large CNC Machines: Driving the Z-axis of heavy milling or stone-cutting machines.
- Industrial Lifts: Operating automated storage and retrieval systems (ASRS).
- Heavy Packaging: Managing the main drives of palletizers and baling presses.