EC-Pro PowerTool
40EC-Pro PT 44
The 40EC-Pro PT 44 brushless DC slotless motor combines numerous brushless technology benefits (longer lifetime & higher peak torque) with slotless technology benefits (higher speed – 30,000 rpm, no cogging). This makes the 40EC-Pro PT 44 a great alternative to brushed DC and slotted BLDC motors thanks to an innovative assembly process and cost optimized design. The 40EC-Pro PT 44 motor can sustain peak torque during 2s up to 1.1Nm and up to 150W continuous power. This 40mm BLDC motor is also available with an integrated cooling fan (40EC-Pro PT 55).
Product Highlights
- Compact 40mm diameter by 44mm length
- 4 poles for higher torque
- Speeds up to 30,000 rpm
- Lower power losses results in higher efficiency
- No cogging torque for smooth rotation
- Maximized performance/price ratio
- Peak torque 1.1Nm during 2 seconds
Customization Available
- Coil modifications - resistance and inductance
- Connectors
- Custom shafts - flats, knurling, diameter, length
- Dust protection sealing of cables output
- Embedded temperature sensor
- Special lubricants
- Without hall sensors
Applications
- Battery Operated Drills
- Nailers and Framing Systems
- Nutrunners
- Power Hand Tools
- Powered Screwdrivers
- Pruning Shears
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| Part Number | 40EC-Pro PT 44 8B 7 | 40EC-Pro PT 44 8B 10 |
|---|---|---|
| Motor Diameter (in) | 1.57 | 1.57 |
| Motor Diameter (mm) | 40 | 40 |
| Ambient Operating Temperature Range (°C) | -30 to +100 | -30 to +100 |
| Ambient Operating Temperature Range (°F) | -22 to +212 | -22 to +212 |
| Ambient Storage Temperature Range (°C) | -40 to +100 | -40 to +100 |
| Ambient Storage Temperature Range (°F) | -40 to +212 | -40 to +212 |
| Axial Static Force w/o Shaft Support, Max (lbs) | 30 | 30 |
| Axial Static Force w/o Shaft Support, Max (N) | 134 | 134 |
| Back EMF Constant (V/1000 rpm) | 0.67 | 0.95 |
| Ball Bearings Preload (N) | 16 | 16 |
| Continuous Current, Max (A) | 18.8 | 13.2 |
| Continuous Mechanical Power, Max (@25°C) (W) | 150 | 150 |
| Continuous Torque, Max (mNm) | 120 | 120 |
| Continuous Torque, Max (oz-in) | 17 | 17 |
| Electrical Time Constant (ms) | 0.2 | 0.2 |
| Housing Material | Stainless Steel, Aluminium, Plastic | Stainless Steel, Aluminium, Plastic |
| Hall Sensor Electrical Phasing (electrical °) | 120 | 120 |
| Inductance - Phase to Phase (mH) | 0.005 | 0.01 |
| Internal Resistance - Phase to Phase (Ohm) | 0.026 | 0.052 |
| Line to Line Resistance (Ohm) | 0.04 | 0.066 |
| Mechanical Time Constant (ms) | 4.1 | 4.1 |
| Motor Constant (mNm/W½) | 39.6 | 39.8 |
| Motor Regulation (10³/Nms) | 0.639 | 0.63 |
| Motor Speed, Max (rpm) | 30000 | 30000 |
| No-Load Current, Typical (mA) | 1410 | 770 |
| No-Load Speed (rpm) | 26500 | 18300 |
| Nominal Voltage (V) | 18 | 18 |
| Optimization Direction | Symmetrical | Symmetrical |
| Rotor Inertia (gcm²) | 64 | 64 |
| Rotor Inertia (oz-in-sec² 10ˉ⁶) | 906 | 906 |
| Thermal Resistance (Slotless) (°C/W) | 1 / 5.4 | 1 / 5.4 |
| Thermal Time Constant (s) | 1019 | 1019 |
| Torque Constant (mNm/A) | 6.38 | 9.11 |
| Torque Constant (oz-in/A) | 0.9 | 1.29 |
| Weight (g) | 230 | 230 |
| Weight (oz) | 8.11 | 8.11 |
| Winding Temperature, Max (°C) | 125 | 125 |
| Winding Temperature, Max (°F) | 257 | 257 |
| Length (in) | 1.74 | 1.74 |
| Length (mm) | 44.2 | 44.2 |
| Feedback Type | Hall Sensors | Hall Sensors |
| Number of Poles | 4 pole | 4 pole |
| Document | Document Type | Language | File Type |
|---|---|---|---|
| drawing_40ecp44.DXF | 2D Drawing |
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| pr_40ecp_brushless_slotless_motor_en.pdf | Press Release |
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| brochure_40ecp_brushless_slotted_motor_en.pdf | Brochure |
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| drawing_40ecp44.STEP | 3D Drawing |
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| specifications_40ecp44.pdf | Specification Page |
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