12mm dc micromotors

The series 1224 SR dc micromotors have an external motor diameter of only 12 mm and a length of 24 mm. A combination of the System Faulhaber ironless rotor and Neodymium rare earth magnets gives a stall torque of 5.43 mNm and speeds to 13,800 rpm. Precious metal commutation allows operation at low starting voltages because of inherent low contact resistance. The 1.5 mm diameter motor shaft ensures high rotational stability. The housing of the motor is black for optimal heat dissipation.

The Series 1224 SR dc micromotor can be combined with a gearhead and encoder for a complete miniature dc drive system. The planetary, spur, and zero-backlash gearheads are available in both 10 and 12 mm diameters with various reduction ratios allowing an output torque up to 300 mNm. The two-channel magnetic encoders allow for precise control of speed and direction of rotation as well as the positioning of the drive shaft.

MicroMo Electronics Inc., 14881 Evergreen Ave., Clearwater, FL 33762, (800) 807-9166, info.ims.ca/6948-250
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Motor becomes a motion-control kit

The digital Pulse Width Modulation (PWM) controlled version of the Integramotor joins the line of standard products. Integramotors combine all four elements of a typical motion control system: a control, a brushless dc motor, a gearhead, and an optical encoder, in one compact package. The all-in-one design reduces wiring hassles, assembly time, and cost, as well as minimizes EMI.

Models combine a 24 Vdc brushless motor with a built-in open loop voltage mode PWM controller. Controls digitally encode analog signal levels with high-resolution counters. The counters convert the analog signal into a series of digital pulses of dc current. Compared to analog controls, digital PWM controls can significantly lower system costs and power consumption. The Bodine controls used in the type 22B/FV or 34B/FV Integramotors accept PWM input from an external motion controller or PLC. They feature amplifier enable, direction input, dynamic braking, and a 2-channel encoder.

Bodine Electric Company, 2500 West Bradley Pl, Chicago, IL 60618,(773) 478-3515, info.ims.ca/6948-251
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Step motors make more torque

CT series step motors use less power to provide more torque than comparable standard hybrid step motors. This improves operating efficiency and increases machine throughput, while reducing machine size and operating costs. Standard and custom motors are available in NEMA 17, 23, and 34 frame sizes.

The CT Series has a patent-pending aluminum housing that improves heat dissipation and provides higher torque output. The step motors also feature large bearings to accommodate high thrust loads and high side loading. This lets the load mount directly to the motor shaft, and reduces mechanical system costs by eliminating the need for couplings and load support bearings. High-voltage insulation further increases reliability and allows using the motors with high voltage, high-performance drives.

Danaher Motion, 1500 Mittel Blvd, Wood Dale, IL 60191, (866) 993-2624, info.ims.ca/6948-252
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Online program helps spec step motors

Designer's Corner is a free online tool for choosing step motors. There is no software to download though registration is required. Start the process by entering max operating speeds, max current, max voltage, or max dynamic torque. After the motor is selected, you can request a quote. For a limited time, the first motor selected using Designer's Corner can be requested at no charge.

Lin Engineering, 1990 Russell Ave., Santa Clara, CA 95054, (408) 919-0200, info.ims.ca/6948-253
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Small motor includes protective circuits

EC-max 2-wire motors have ironless windings and turn detent-free. A stainless-steel motor housing combined with metal flanges provides good temperature stability, heat elimination, and shielding against electrical fields. Automated production means the motors have an excellent price-to-performance ratio. The integrated electronics allow direct control with an operating voltage between 5 and 15 V. Motor speed is proportional to the applied voltage with the relevant speed in a given direction. Protective circuits guard the motor against polarity reversal, overheating, axle blocking, and under-voltage.

With a nominal output of 5 Watts, the motor generates continuous torque to 3.4 mNm. A 16-mm diameter planetary gearhead can be added to increase inertia up to a maximum of 0.3 Nm. The motor is useful in applications that call for long service life, and simple and compact controls.

Maxon Precision Motors, 101 Waldron Rd, Fall River, MA 02720, (508) 677 0520, info.ims.ca/6948-254
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