The 40EC-Pro PT 55 8B 10 is a 40mm diameter brushless DC slotless motor with an integrated fan for active cooling, designed for high-power handheld tools. It operates at a maximum continuous mechanical power of 425 W with a nominal voltage of 18 V, achieving a no-load speed of 18,000 rpm and a maximum continuous torque of 150.2 mNm. The motor has a phase-to-phase resistance of 0.052 ohms, a thermal resistance of 2.3 °C/W, and a maximum winding temperature of 125 °C. It weighs 240 g and has a rotor inertia of 66 g·cm². The motor supports ambient operating temperatures from -30 °C to +100 °C and is equipped with Hall sensors for commutation. The package size is 40 mm in diameter and 55 mm in length, with mounting via four M3 through holes.
EC-Pro PowerTool with Integrated Fan
40EC-Pro PT 55
The 40EC-Pro PT 55 brushless DC slotless motor is an optimal choice for high speed & peak torque applications. In addition to multiple brushless benefits (longer lifetime & higher peak torque), the slotless design allows for higher speed (30,000 rpm). This makes the 40EC-Pro PT 55 a great alternative to brushed DC and slotted BLDC motors thanks to an innovative assembly process and cost optimized design. The integrated fan provides active cooling during the motor’s operation, for continuous operation up to 0.15Nm at 30,000rpm (425 W), and achieving 1.1Nm peak torque during 2 seconds. This 40mm BLDC motor is also available without a fan (40EC-Pro PT 44).
Product Highlights
Applications
| Portescap | |
|---|---|
| Product Category | DC Motors |
| Product Number | 40EC-Pro PT 55 8B 10 |
| Product Name | EC-Pro PowerTool with Integrated Fan |
| DC Voltage Range | 18.0 VDC |
| Torque Constant | 1.29 in-oz/amp (9.11 mN-m/amp) |
| Continuous Current | 16.5 amps |
| Continuous Torque | 1.3 In-lbs (1.53 kg-cm) |
| Rotor Inertia | 9.35E-4 oz-in-sec² (0.0066 kg-cm²) |
