Sprint Electric’s high power field controller optimizes DC drive capabilities

Sprint Electric (www.sprint-electric.com) has expanded its range of DC drives for control of DC motor’s high current excitation fields, with the addition of QLX, a three phase field controller that feature fieldbus options such as DeviceNet, Profibus, ModBus TCP/IP, CanOpen and Ethernet.

The QLX controller works with the armature controller to deliver the required field control functions including field reversal. With currents ranging between 12 Amps and 2250 Amps, the new product utilizes three phase power supply to offer a controlled DC field current. Featuring full digital control and the usual communications facilities, QLX is ideally suited for use in various applications such as in steel handling and hot rolling mill.

With digital functions similar to the company’s PLX range of DC drives, the QLX 3 phase field controller comprise five frame sizes, with up to 2250 Amps current capability. It also offers Field Reversal as well as Auto Field Weakening for high power fields. It also features an integrated Standby Field mode. The QLX interfaces directly with the main armature controller for start and stop functions. The controller cost-effectively includes reversing to big DC motors where the facility exists only with contractors, or when it no longer exists.

Offering a vast array of DC motor control, Sprint Electric has more than 150 models covering both three phase and one phase, non-regenerative and regenerative DC motor applications, which come with digital slip ring motor controllers.

DC Motors

A direct current – dc  motor is an electric machine that converts electrical energy to mechanical energy. DC motors are one of two general types of motors, the other being the alternating current – ac motor. DC motors have a few basic components including the commutator, armature, a stator and a rotor.

All dc motors generate a magnetic field, either via electromagnetic windings or permanent magnets. An armature, which is often a coil of wires, is placed between the north and south poles of a magnet. When current flows through the armature, the field produced by the armature interacts with the magnetic field from the magnets and eventually generates a torque and thereby motion. Part of the simplicity and attractiveness of dc motors is that they operate at a constant speed for a fixed voltage.

DC motors are available in a few basic configurations; the basic brushed dc motor, brushless motor, permanent magnet motor and wound-field motors.

In a brushed dc motor, the magnet acts as the stator. The armature is integrated onto the rotor and a commutator switches the current flow. The commutator’s function is to transfer current from a fixed point to the rotating shaft. Brushed dc motors generate torque straight from the dc power supplied to the motor by using internal commutation, fixed permanent magnets, and rotating electromagnets.

Brushed dc motors have the advantage of generally low initial cost and simple control of the motor speed. However, there are some drawbacks. At certain periods during the dc motor rotation, the commutator must reverse the current, causing reduced motor life due to arcing and friction. Consequently, brushed dc motors require more maintenance such as frequently replacing the springs and brushes which carry the electrical current, as well as replacing or cleaning the commutator. These components are important for transferring electrical power from outside the motor to the spinning coil windings of the rotor inside the motor.

Brushless dc (BLDC) motors, on the other hand, do away with mechanical commutation in favor of electronic commutation, which eliminates the mechanical wear and tear involved with brushed dc motors. In BLDC motors, the permanent magnet is housed in the rotor and the coils are placed in the stator. The coil windings produce a rotating magnetic field because they’re separated from each other electrically, which enables them to be turned on and off. The BLDC’s commutator does not bring the current to the rotor. Instead, the rotor’s permanent magnet field trails the rotating stator field, producing the rotor field.

Field-wound dc motors use a coil to generate a magnetic field and are used where high power and constant horsepower is required. Among the field-wound motors there are series-wound, shunt-wound, and compound-wound configurations. The armature and the field coils in a shunt-wound motor are connected in a parallel formation that causes the field current to be proportional to the load on the motor, while in series-wound motors, the armature and field coils are placed in series and the current passes only through the field coils. The compound-wound configuration combines both the series-wound and shunt-wound types and uses both configurations.

Lastly, the permanent magnet (or PM) motor uses permanent magnets such as high-energy neodymium to generate a magnetic field. These motors tend to be smaller and weigh less than the other common types of dc motors and so are well suited for applications where size and weight are important factors. One limitation of PM motors is that they cannot be speed controlled because the magnetic field is fixed.

Crouzet’s Brushless DC Motor delivers high speed and torque

Crouzet (www.crouzet.com), a world manufacturer of automation control components such as pneumatics, micro motor and micro control products, solid-state relays and sensors, has announced the release of the second generation 150 Watt Brushless DC Motor, which is durable enough to support high loads without operation interruption.

Featuring 150 Watt power, the new three-stage planetary gearbox provides expanded capabilities for applications demanding high torque and speed.

The company’s Model 80199701 gear motor offers variable torques and speeds, as well as maintains a quiet, smooth operation. A part of the 801997 series, the motor improves the company’s output torque to 120 Nm from 25 Nm. With 200 N axial and 1000 N radial, the robust motor easily handles high side loads and lends itself to long life and controllability.

Measuring just 229 mm in length and 81 mm in diameter, the compact motor integrates a shaft extension on the motor’s rear, enabling for brake or encoder. It is offered with one, two or three stage gearboxes, can operate with voltages from six to 75 VDC, and utilizes industry-standard eight-wire connection scheme and hall sensors.

“The use of this brushless DC motors is a logical choice where long life is a concern,” said Jim McNamara, Applications Engineer at Crouzet.

“That combined with the long life gear motor, makes it an excellent solution for many applications,” he added. “Other benefits include reduced noise, increased efficiency and the elimination of brush dust.”

PCC offers new brushless DC motors and drives

PCC (www.process-control.com) has announced the launch of its latest gearmotor/drive package for its auger based, continuous loss-in-weight blenders and feeders. To rotate the metering auger, the AFG/PF feeders and X-Series blenders previously integrated a permanent DC gearmotor and a PWM drive. The company has developed a new breed of motor drives that would control its previous permanent magnet motors and its latest generation of brushless DC motors.

Encoderless and brushless, the new gearmotors offers far more superior performance, reliability and a longer service life as against the old model. Unlike the eight gear/power ratio combinations of the previous permanent magnet gearmotors, the new gearmotors only needs two gear/power ratio combinations to cover the required range of the RPM for the feeders and blenders. The company’s latest gearmotor/drive is 100 percent compatible with PCC feeders and blenders already in service and has already started shipping new systems in April.

PCC General Manager, Dana Darley, said that the company’s new auger drive package represents a significant advancement in the reliability and performance of PCC’s premium line of gravimetric feeders and blenders.

He added that the company is so confident of this latest system that it is considering giving three-year warranty on both the gearmotor and the drive, whether it was purchased as a spare part, an upgrade or on a new feeder or blender.

New Micro Motor Product Line from Johnson Electric

Johnson Electric announces its new Compact DC motor product line which delivers the industry’s highest power density. This innovation is based on Johnson Electric’s proprietary Curve Technology. Curve technology is deployed within a DC motor platform with a unique 4-pole magnetic design in a curved package which reduces motor size by 25% and weight by 35%. This power density improvement is perfect for automotive applications where low weight and compact size are required. Overall vehicle weight is a key driver of fuel economy, and the new motors from Johnson Electric help make cars more fuel efficient.

Compact DC motors can be custom engineered to address multiple automotive applications including window lifts, sunroofs, steering wheel locks, door locks, HVAC actuators and most other functions in the car that require DC motors.

For more information on the new Compact DC motors, e-mail sales@johnsonelectric.com.

www.johnsonelectric.com

Dunkermotoren USA Inc Launches New e-Shop

Dunkermotoren USA has launched its new e-Shop, making ordering from its extensive Stock Program of sub-fractional integral brushless and brushed DC motors a snap.

More than 400 motion solutions can be delivered in 2 weeks, and soon, Dunkermotoren will make most of those available for same-day shipping. The new e-Shop answers OEMs short time to market constraints for designing and delivering their machines.

Dunkermotoren
www.dunkermotoren.com

TI introduces new DRV8412 evaluation kit

Texas Instruments Incorporated (www.ti.com) is pleased to introduce its all-new DRV8412 evaluation kit (DRV8412-C2-KIT) – a new line of scalable evaluation platforms intended for spinning motors. The kit includes all of the software and hardware needed to spin a single stepper motor or two brushed DC motors out of the box. It also speeds up development time for stepper and brushed DC motors running up to 6A continuous/12A peak at 50V. Applications include gate openers, medical pumps, textile manufacturing tools, stage lighting, and consumer or industrial robotics.

Among the kit’s features are out-of-the-box motor control and driver solution, which includes motors, the DRV8412-C2-KIT, a quick-start GUI, full development source code, Code Composer Studio (CCStudio) fitted with development environment (IDE), and a real-time control C2000 Piccolo microcontroller (MCU) controlCARD module. Modular control architecture provides flexibility to choose the suitable level of processing performance for the application. Additional TI MCU options will also be available next year.

The DRV8412 motor with integrated MOSFETs offers up to three times lower Rdson than other solutions, allowing up to 97% efficient operation, and delivers 6A continuous/12A peak current at 50V, eliminating the need for a costly heat sink. The motor driver also incorporates advanced on-chip protection such as under-voltage protection, over-temperature, and cycle-by-cycle over-current, to reduce design board space and complexity and ensure higher system reliability.

C2000 Piccolo MCU can perform communications, debug and control. The 32-bit C2000 MCU incorporates the most advanced CPU capability and control peripherals in an embedded MCU device family. This includes open-tooled reference designs through free controlSUITE software, real-time debug capabilities and access to the most systematic set of motor control software modules.

Easy-to-use GUI and C source code demonstrate current and voltage control of one or two brushed DC motors, as well as index and speed, which include up to 128 microsteps, of a stepper motor.

MicroMo’s 8mm family of DC motors, encoders, gearheads

MicroMo Electronics, Inc. (www.micromo.com) has unveiled a new family of mini-drives with an outer diameter of only 8mm, providing maximum power. This family of drives is an impressive solution with several possible combinations using DC-Micromotors, with micro-encoders and precision gearheads.

The DC-Micromotors series 0816 is available in 3V, 6V and 8V versions, which have an outstanding power-to-volume ratio. The System FAULHABER, a patented ironless rotor, is truly remarkable with its extremely low inertia and low inductivity. Specifications include a no-load speed of up to 17 1000rpm, output power of 0.18W and stall torque of 0.41mNm.

A two-phase Stepper Motor with permanent magnets, the AM0820 is available in 2V, 3V, 5V and has a holding torque of 0.65mNm and 20 full steps per revolution. NdFeB is used as a magnet material to guarantee an excellent size to power ratio. The AM0820 also features two shaft bearings types: preloaded ball and sintered bronze sleeve bearings.

Also available are three all-metal precision gearheads of 08/1, 08/2 and 08/3. The 08/1 planetary gearhead offers user maximum drive torque of 120mNm in intermittent operations and 60mNm in continuous operation. The two additional 08/2 and 08/3 series spur gearheads are available in two executions, convinced with positioning control applications.

The company redefines miniature magnetic encoders with the HEM3-256, providing new possibilities for applications that require miniature motors with encoders. Also available are four resolutions that provide precise positional accuracy and stability control. The encoder is allowed to work with 3V or 5V power sources for low-voltage battery applications. It is also designed for robust reliability with an operating temperature range of -30°C to +85°C, allowing use in extreme applications.

maxon motor Expands Line of Industrial Type Brushed DC Motors

maxon motor is expanding its existing range of industrial type versions with the addition of two new motor sizes with IP54 protection rating as well as mounting brakes. The two powerful and mechanically commutated DC motors, with output powers of 200 and 250 watts are protected on the commutation side with sealed aluminum housing. The cable outputs are sealed with PG cable fittings, and the shaft is secured with a radial shaft seal to guarantee IP54 rating on the flange side.

These two industrial versions, with diameters of 50 and 65 mm, are available as standard with various winding options. They achieve nominal torque of up to 0.9 Nm, nominal speeds of up to 5,500 rpm and an efficiency level of over 90%.

Low nominal voltage, high power density, a flexible combination range and IP54 protection rating make both power packages the ideal choice for use in industrial equipment, such as automatic dispensing machines, handling and packaging machinery, as well as in battery-operated applications such as electric vehicles, transport and logistics facilities.

maxon motor
www.maxonmotorusa.com

Bodine Electric introduces Permanent Magnet DC Motors & Gearmotors

Bodine Electric Co. (www.bodine-electric.com) is proud to announce the latest brush-wear monitoring system developed for its popular line of 42-frame permanent magnet DC (PMDC) motors and gearmotors. The OEM versions of the type 42A products are equipped with built-in electronic brush-wear sensors, which are fully integrated into the motor housing. These special sensors signal when one of the brushes is nearing the end of its useful life.

The unique sensor system permits OEMs to monitor brush wear electronically in order to maintain uninterrupted operation of the PMDC motors or gearmotors. It also removes the guesswork in brush inspection and maintenance. Motors and gearmotors that are equipped with this feature can accommodate built-in EMI filtering and built-in magnetic encoder. The company is already in the process of searching for patent protection for this latest technology. PMDC gearmotors and motors that feature the proprietary design are exclusively available from Bodine Electric Company.

“This is the sort of value-added and innovative design engineering that sets Bodine apart. One of our customers approached us with the challenge of monitoring brush-wear and motor life in a battery- and solar-powered application. We took care of the motor solution with this new technology, and the customer integrated the sensor feedback into his control system,” said Terry Auchstetter Manager of Custom Solutions and Business Development of Bodine Electric.

The sensor system is best suited for remote monitoring of PMDC motors or gearmotors, especially when nobody is standing next to a machine all day.

Compact Pittman DC Motors for Medical Device Apps

The expanded family of compact Pittman® slotless brushless DC motors has been engineered to outperform traditional motors in medical device applications requiring high efficiency and power with minimal heat, EMI, vibration, and noise. They are sized ideally to serve as high-performance power solutions in medical instruments, dental drills, and other handheld or small medical devices.

This family of small motors introduces a wide variety of power solutions for device applications with tight design envelopes. Motor diameters range from 0.375 in. / 9.53mm to 1.1 in. / 28mm and, depending on model, the motors can develop speeds up to 70,000 RPM under varying loads. Achievable continuous torque ratings approach 15 oz-in for the larger diameter series.

All models incorporate patented “Parallex” winding geometry promoting high efficiency by delivering more power using less energy. They additionally feature high-energy neodymium magnets for enhanced performance, robust construction with stainless steel housings for durability and corrosion-resistance, and precision and shielded ABEC bearings and balanced rotors contributing to smooth and quiet operation. Autoclavable versions are also available and capable of realizing extremely high cycle count.

Other standard features include 2- or 4-pole rotor, 3-phase stator, and Hall sensors. The motors can be customized with planetary gearboxes, optical encoders, and controllers, among other options, to tailor motor to application.

AMETEK Technical & Industrial Products, Inc.
www.ametektechnicalproducts.com

New DC Motors from AutomationDirect

Cumming, GA — AutomationDirect’s new IronHorse™ permanent magnet DC 56C-frame motor line features totally enclosed non-vented (TENV) and totally enclosed fan-cooled (TEFC) models. The motors are constructed of a rolled steel frame with cast aluminum end bell, and are available in sizes ranging from .33 to 2HP. IronHorse DC motors are ideal for applications such as conveyors, turntables, and whenever adjustable speed, constant torque, dynamic braking and reversing capabilities are needed.

IronHorse DC motors, with a base 1800 RPM, are designed for use on unfiltered SCR (Thyristor) type 115 or 230V rectified AC inputs, when used with an appropriate SCR drive. They may also be used with PWM (pulse width modulated) type DC adjustable speed drives.

Other features include linear speed/torque characteristics over the entire speed range, high starting torques for heavy load applications, reversible rotation, and dynamic braking capability for faster stops. Large brushes provide for longer brush life. All IronHorse DC motors are shipped with a set of brushes in the motor, with an extra set of brushes included in the box

IronHorse DC motors can be mounted to the Stable™ motor slide bases for accurate and easy motor positioning. Available in sizes from NEMA 56C- NEMA 449T, these motor bases start at $8.

IronHorse permanent magnet DC motors start at $119, are available for same-day shipping, and are backed by a two-year warranty. View the complete line of IronHorse permanent magnet DC motors at www.automationdirect.com/dc-motors.

AutomationDirect
www.automationdirect.com

RE50 Brushed DC Motor from maxon

Maxon’s RE 50′s “heart” is, as with all mechanically commutated maxon motor drives, the ironless rotor, which results in detent-free running and minimized mass inertia. The combination of a two-pole Neodymium permanent magnet with the patented maxon winding technology results in high torque and remarkable acceleration.

The drive measures Ø50 x 108 mm and is available with four different windings. It reaches a nominal torque of up to 0.38 Nm, a nominal speed of 2800 to 5700 rpm and an efficiency of more than 90%. Low nominal voltage (24.70 VDC) and high power density make the RE 50 an excellent choice for the use in battery-powered applications, such as electric vehicles, transport and logistics equipment, mobile systems, robots, etc.

Pre-loaded bearings contribute to low-vibration and quieter running and an extensive life span. The well proven maxon modular system offers matching planetary gearheads, encoders and control systems. Look for more information soon on a dust and splash water protected RE 50 version, which will be available with an optional brake.

maxon motor
www.maxonmotorusa.com

Pittman 30mm Brush DC Motor

New Pittman® brand 30mm brush-commutated DC motors integrate high-energy bonded neodymium magnets for maximized power density and an optimized magnetic field profile and 7-slot straight armature to minimize cogging. The motors additionally feature a large diamond-turned commutator and copper-graphite brushes to deliver high current capacity and long-life operation.

These Series 8540 brush DC motors offering high torque-to-size performance provide ideal solutions to power data storage and medical equipment and business machines, among other industry applications.

The motors (1.181 in. diameter) are available in three standard lengths (2.080 in., 2.552 in., and 3.025 in.). They can achieve continuous torque up to 9.3 oz-in. and continuous power up to 43W, depending on model, and peak torque up to 78.7 oz-in and speeds up to 6440 rpm at continuous torque for standard motors at rated voltages.

Their balanced armature minimizes noise and vibration; large pre-loaded and heavy-duty ball bearings and supports promote high shaft-load capability; PC board brush card with integral surface mount components easily incorporates electrical noise suppression; and an integral connector header allows for custom leadwire configurations.

A modular design for these motors accommodates gearboxes, encoders, and brakes using adapter plates and shaft extension modifications. Motors can further be customized to satisfy particular application requirements.

AMETEK Technical & Industrial Products
www.ametektechnicalproducts.com

Lin Engineering NEMA 23 Brushless DC Motors

Santa Clara, CA — Lin Engineering announces the release of their new line of NEMA 23 Brushless DC (BLDC) motors.  These motors are best for applications where high speed and high dynamic torque are a must for the user’s application.

Lin’s NEMA 23 BLDC’s provide extremely quiet and smooth operation regardless of speed range, although the optimal performance speed range is 300RPM to 4000RPM.  These are also great for those who prefer velocity control with an analog input, do not need holding torque and may be having reliability issues with an existing Brush DC motor.  BLDC’s are also a good choice for applications that do not have a lot of power and require a higher efficiency motor.

Lin Engineering’s NEMA 23 BLDC’s are available in four stack lengths: 2.00”, 2.80”, 3.60”, and 4.53”.  Depending upon the stack length, these motors are able to produce up to 190 oz-in of peak torque.

Lin Engineering
www.linengineering.com

Rotron Brushless DC Motors

Rotron® brushless DC motors specially engineered for applications onboard heavy-duty transit buses, coaches, and other transportation vehicles deliver long-life power solutions serving up to 60,000 hours. These motors in two standard frame sizes (47 and 64) employ electronic commutation to operate virtually maintenance free and can outlive conventional brush-commutated motor products prone to failure from brush wear.

Applications include fans, blowers, pumps, and compressors from 0.5 HP to 2.25 HP, depending on model. Both motor types integrate rare-earth magnets for high torque/weight ratio, accept a wide range of voltage inputs (12, 24, 37, 74, 90, and 110 VDC), and offer protections against reverse polarity and voltage surges.

The 47 Frame motor series (in lengths 6.08 in. and 6.68 in.) incorporate integral electronics enabling simple 2-wire DC operation. They can achieve continuous torque up to 50 oz-in and speeds up to 4,425 RPM with optional accelerated speed capabilities up to 10,000 RPM. Other options include MS connectors, O-ring sealing for harsh environments, and bi-directional operation.

The 64 Frame motor series (in lengths 7.08 in., 10.125 in., 10.36 in., and 13.34 in.) can achieve continuous torque up to 800 oz-in and speeds up to 3,900 RPM. The motors are sealed with O-rings as standard. Drop-in replacement motor designs can be developed for existing brush motors to accommodate OEM or retrofit applications.

Both motor types can additionally be ordered with custom shaft and mounting configurations (foot and face), winding variations to meet exact speed/torque/voltage point, and otherwise customized to satisfy particular application requirements.

Complete blower, fan, and pump systems equipped with these durable motors can be supplied as total system solutions.

AMETEK Technical & Industrial Products
www.ametektechnicalproducts.com

maxon Brushless High Speed DC Motor

Maxon motor introduces the brushless EC 25. Designed for high speed applications of up to 70,000 rpm and has an extremely low vibration characteristic and minimized scale. The motor is equipped with preloaded ball bearings and a two pole Neodymium permanent magnet.

The motor measures at Ø25 x 84 mm and is rated for nominal voltage of 36 VDC and reaches a nominal torque of up to 42.2 mNm, nominal speed 61,600 rpm with efficiency above 93%. The motor-specific speed/torque gradient amounts to 44.9 rpm/mNm. This EC25 motor is particularly suitable for high speed spindle-driven applications, as required in medical technology (surgical power tools, dental drills, etc.) or machine tools (manufacture of optical lenses, fabrication of printed circuit boards, etc.).

For fast-rotating applications, a friction-reduced, low-vibration operation over the entire speed range is necessary. This can only be achieved with high-precision balancing and preloaded ball bearings.

maxon motor
www.maxonmotorusa.com

Pittman® I Series’ Brushless DC Servo Motors

KENT, OH — Pittman® brand “I Series” brushless motors equip machine designers with a family of motor solutions created for commercial and light-industrial OEM applications. Motors are available in various sizes offering a wide range of performance capability from 40 Watts to 1700 Watts continuous. Brushless technology delivers extended service life, efficiency, improved performance, and superior machine control.

The I Series motors were developed using the latest magnetic tools and materials. Their magnetic core is optimized to favor power density and efficiency while minimizing cost. The winding system allows for a wide range of operation on machine bus voltages from 12 VDC to 325 VDC. The choice of materials, including bearings, Hall devices, and insulation promote extended service life.

These small and powerful motors are available in NEMA frame sizes 17, 23, 34, and 56 and in multiple lengths for each. Depending on model, they can provide continuous stall torque from 0.117 Nm to 6.6 Nm (1 lb-in to 58 lb-in) and peak torque from 0.35 Nm to 19.7 Nm (3.1 lb-in to 174 lb-in). Rated speeds for this family of motors range from 3000 RPM to 12000 RPM.

AMETEK Technical & Industrial Products
www.ametektechnicalproducts.com

Maxon Motor EC 9.2 Flat DC Motor

Maxon motor launches its flat motor measuring Ø10 x 12.5 mm offering a high nominal torque of up to 0.83 mNm and a stall torque of up to 1.29 mNm. Its outer diameter of 10 mm includes a protective cover that serves as protection against contact and as mounting aid during installation of the motor. It is equipped with an 8-pole Neodymium permanent magnet and preloaded ball bearings.

An ideal motor drive for medical technology applications where space limitations may be a concern. Other features include high nominal torque and lifespan-optimized bearings. Also available with or without Hall sensors. The drive meets medical technology’s quality standard ISO 13485 meaning it conforms to the rigid quality requirements and guaranteed traceability of individual components.

maxon motor
www.maxonmotorusa.com

CUI’s AMT Encoder to be Paired with DC Motors from MicroMo

CUI Inc announces that their AMT Series modular encoder is now being carried by MicroMo Electronics, Inc., the North American distributor for the Faulhaber Group. The AMT utilizes CUI’s proprietary capacitive technology, which holds numerous advantages over the optical technology typically used in today’s modular encoders. The AMT’s design allows users to select from a range of resolutions via an on-board dip switch, creating flexibility for companies utilizing multiple encoders in their applications. Additionally, common problems associated with optical encoders, including fragility of the optical disk, led burn-out, limited temperature range, and high current consumption are eliminated by capacitive technology.

The AMT has been paired with several MicroMo DC motors ranging from 22 to 32 mm diameters and is being sold as a value added package. Dodd Disler, MicroMo’s Vice President and COO observes, “CUI provides a competitive encoder solution using unique technology. This provides another great tool for MicroMo to integrate into our custom motion solutions and value added drive systems.” The combination of the AMT and the MicroMo DC motor is ideal for indication and control of shaft velocity and direction of rotation as well as for positioning. The AMT102 is configured with a side or radial exit connector and the AMT103 is configured with a top or axial connector. The supply voltage for the encoder and the DC motor, as well as the output signals, are interfaced with separate cables for connection.

Matt McKenzie CUI’s President states, “MicroMo is an industry leader in its space and CUI greatly values their partnership.”

CUI
www.amtencoder.com

MicroMo
www.micromo.com

MicroMo Brushless DC Servomotors

MicroMo’s introduction of the BX4 series of brushless DC servomotors emphasizes its position as an innovative market leader in highly integrated miniature drive systems. Using the latest production methods, some specially developed by MicroMo, the company has come up with a modular design that is limited to just a few components and entirely eliminates the need for adhesive-bonded joints. Despite the compact dimensions, the new four-pole concept of the series ensures a high continuous torque of up to 12 mNm, with a flat gradient of the n/M aspect curve.

Notable features are the smooth running operation and the particularly low noise level. Thanks to its electronic commutation, the brushless servo motor series is characterized by a much longer service life than mechanically commutated drives. In the basic version the commutation is provided by an external control, the flexible motor concept of the BX4 series also offers versions with integrated speed controller or integrated encoder. The encoder version is available in four different preset resolutions: 32, 64, 128, or 256 quadrature impulses per revolution. It is available with an optional line driver and differential output signal. In addition to mechanical speed adjustment, the new planetary gearheads of the 22F series also allow a temporary torque increase up to 1500 mNm. Designed with one to four stages, the precision gearhead in steel 21 offers finely graduated reduction ratios, and the diameters can be combined in conformity with the BX4 drives.

www.micromo.com

Pittman Series 6000 Brush DC Motors

Pittman® brand “Series 6000” brush-commutated DC servo motors have been engineered to deliver more power than most other DC motors of similar size. These 22mm-diameter motors available in three standard lengths feature a skewed 5-slot armature design and bonded neodymium iron boron magnets to contribute optimized performance in a cost-effective package.

The longest model (1.901” in length) can provide up to 40% more continuous torque (2 oz-in) compared with shorter 22mm-diameter electric motor products. Other motors in this series are offered in shorter lengths of 1.256” and 1.556” with the capability to achieve continuous torque up to 0.80 oz-in and 1.3 oz-in, respectively.

Depending on model, these motors can generate maximum peak torques up to 10.2 oz-in and nominal no-load speeds up to 8720 rpm.

Key features include sintered bronze bearings, 2-pole stators, heavy-gauge steel housing, silicon steel laminations, and copper graphite brushes. Standard available options include ball bearings, EMI/RFI filter networks, and leadwire or terminal connection configurations.

Planetary gearboxes can be specified to meet demanding speed and torque requirements and optical encoders with several choices of resolution can be added for position, velocity, and direction feedback necessary in precision motion control applications. Custom motors can be developed to suit particular application requirements.

www.ametektechnicalproducts.com

ThinGap’s TGB1710 Brush Motor

VENTURA, CALIFORNIA – ThinGap LLC announces the TGB1710 brush motor for industrial handheld/portable tools. The small size, high torque, and low power consumption of the TGB1710 provide an excellent solution for heavy-duty battery powered applications.

The 1.7” diameter by 3.3” long TGB1710 brush motor delivers 160 oz-in. peak torque and 183 watts continuous power, yet weighs only 22 oz. The ruggedized brush configuration design withstands the high vibration of portable tools. Brush life is longer than conventional motors because of the unique design and the inherent low inductance architecture of the motor coil. The TGB1710 motor also features smooth, controllable power due to its zero cogging and hysteresis torque. For a data sheet on the TGB1710, please visit http://www.thingap.com/pdf/tgb1710ss.pdf

www.thingap.com