Motor Mania

When it comes to motors for motion control, engineers face the happy dilemma of having to choose from many different options. Now, their options have expanded.

Baldor Electric recently expanded its BSMC-series brushless motor line, and showcased its additions at the National Design Engineering Show in Chicago the week of February 23, 2004. The C-series is now available in three frame sizes-BSMC80C, BSM90C, and BSM100C. Baldor says they provide up to 780 lb-in of peak torque and 260 lb-in continuous stall torque. The company adds that speeds of up to 6000 rpm are standard.

Applications for the series include packaging, material handling, registration, labeling, and factory automation, among others. The motors are available with either resolver or encoder feedback, and operate with a wide variety of controls, including 115, 230, or 460 Vac.

Meanwhile, ThinGap Motor Technologies debuted its TG2300 series NEMA 23 brushless dc servo motor. The company says it features real-time errors of less than five counts per 81,920 counts.

The motors are for factory automation applications. ThinGap reports that the peak torque is 574 oz-in for quick acceleration and deceleration of heavy loads at up to 7,200 rpm. Enabling that feature: patented high-efficiency electromotive coil technology that can eliminate the need for gearbox reduction.

Among things the ThinGap motor doesn't have: cogging or histeresis torque, or torque-constant roll-off due to saturation.