Koford Engineering has introduced a new 2.36 in. (60 mm) diameter x 4.327 in. (110 mm) long, high power density four pole slotless hall sensor brushless motor.  It features a cog-free non-saturating design with linear behavior and sine back EMF suitable for precision motion.  The motor produces a rated continuous output of 927 watts at…

Koford Engineering introduces a 42 mm diameter x 65 mm long, high power density two pole slotless hall sensor brushless motor. Itfeatures a cog-free non saturating design with linear behavior and sine back EMF suitable for precision motion. The motor produces an output of 569 watts at 16,278 rpm and weighs only 425 g and…

Koford Engineering LLC has introduced a 36 mm diameter x 43.6 mm long, high power density four pole slotless hall sensor brushlessmotor.  The motor produces an output of 260 watts at 6,753 rpm, weighs 198 g, and has a peak efficiency of 87%. Typical applications include surgical power tools or aerospace applications. The motor can…

Koford Engineering has introduced a new 36-mm diameter x 43.6-mm long, high power density four pole slotless hall sensor brushless motor. The motor produces an output of 301 watts at 13,300 rpm. weighs only 198 g, and has a peak efficiency of 88%. Typical applications include surgical power tools or aerospace applications. The motor can…

Koford Engineering introduces a new line of .400-in. bore hollow shaft motors with up to 21,336 rpm, 92% peak efficiency, and up to 1,066-watt continuous power with heat sinking. The motor is 2.36-in. diameter x 3.07 long with a .500-in. OD shaft and weighs 2.2 lb.  It is available either with hall sensors or sensorless.…

Koford Engineering has introduced a new family of motors with rpm up to 12,728, 91% peak efficiency, and up to 1,239 watts continuous with no heat sinking or fan cooling required. The motor is 3.5-in. diameter x 2.950 long with a .5-in. shaft and weighs 3 lb, 13 oz (89 mm x 75 mm x…

Koford Engineering LLC has introduced a line of outer rotor 40mm diameter brushless motors with exceptional power to weight and size. Weighing only 203 grams they provide a peak output of 900 watts and a continuous output without external cooling or heatsinking of 499 watts. Available input voltages range from 12v to 48 volts and […]

Koford Engineering LLC has introduced a new 45 amp 48 volt sensorless drive with unique characteristics. This drive can operate over a 80:1 speed range, mush broader then the usual 3:1 to 5:1. It also features ultra low EMI. It has a 99% efficiency and operation up to 200,000 rpm with a two pole motor […]

Koford Engineering LLC has introduced a new series of 40 amp 48 volt sensorless drives. These drives feature 99% efficiency, compact size and high performance. Operation up to 80,000 rpm with a 2 pole motor is possible. The design feature operation at 100% duty cycle compared to many other drives that are limited to 95% […]

Koford Engineering LLC has introduced a new brushless, slotless hall sensor motor featuring speeds to 81,408 rpm and 153 W of power in a 22mm diameter. It features ceramic hybrid bearings with machined Torlon retainers and ultra low loss laminations. The slotless construction is free of cog. The motor has a hardened and precision ground 440C shaft […]

Brushless generators from Koford Engineering components are now possible. The motion-component supplier now sells regulated three-phase rectifier boards (for up to 5 V and 20 A) that combine with any three phase sensorless brushless motor to serve as brushless generators.   Product information can be found at koford.com/Generators.pdf. Recall that when driven by a power […]

Now Koford Engineering sells two new 10-pole  motors. These high-performance motors are 5.07-in. (129-mm) brushless motors with no-load speeds to: • 2,866 rpm at 24 V • 5,760 rpm at 48 V Both hall sensor and sensorless versions are available.  Winding temperature sensors are offered.  Peak power is 2,502 watts for the 48-Volt unit and […]

Koford Engineering LLC has introduced a new 40-mm (OD) outer rotor sensorless brushless motor with a built-in internal fan. The motor produces a peak output is 900 watts with a weight of only 203 g for a power to weight ratio of 4.4 watts per gram.  Continuous  power is 498 watts at 10,826 rpm with […]

Koford Engineering has introduced a new 40-mm OD outer rotor sensor-less brushless motor with a built-in internal fan. The motor produces a peak output of 900 W with a weight of only 203 g for a power-to-weight ratio of 4.4 W/g. Continuous power is 498 W at 10,826 rpm with no heat sinking and peak […]

Koford Engineering now sells a new series of 60-A 24-V digital sensorless drives. These drives feature 99% efficiency, compact size, and high performance. They run motors to 80,000 rpm and can run two-pole motors. The design can run at 100% duty cycle compared to many other drives that are limited to 95% duty cycle. This […]

In a recent video recorded at the Design World studios, I teamed up with my colleague Paul Heney to review the features of a brushless-motor drive from Koford Engineering in Winchester, Ohio. Consider some examples from Koford Engineering, which sells a full line of compact 5, 10, 15, 20, 30, and 40-A brushless motor drives. […]

In a recent video recorded at the Design World studios, I teamed up with my colleague Paul Heney to review the features of three motors (including slotless brushless motor options) from Koford Engineering in Winchester, Ohio.  Related article: What are the differences between slotted and slotless motors? Brushless motors are like brush motors but use electronic […]

Koford Engineering LLC has introduced a line of compact 48-V, 40-A brushless motor drives. These drives require no external inductors for slotless or other low inductance motors. They are preprogramed and require no user set up, adjustments or programing. Unlike most drives they can operate at 100% duty cycle. Most brushless drives are limited to […]

Motion Control Tips

Koford Engineering’s new line of 12 to 24 V, 48 mm diameter slotless brushless hall sensor motors feature a 10 mm hole through the center of the motor shaft. The motor features a free running temperature rise as low as 3°C which can be helpful for optical and scientific instrument applications. Ceramic hybrid bearings are…