PressFit Rotary Encoders

New PressFit rotary encoders offered by HEIDENHAIN (Schaumburg, IL) feature a compact design that allows fast and simple mounting by press-fitting into a motor housing while still allowing surrounding space for cables and seals. The PressFit encoders are made for integration into motors with a flange size as small as 40 mm × 40 mm or an axis height of only 20 mm. Developed in collaboration with global motor manufacturers, PressFit encoders include a “PressFit” flange that can be secured in a motor housing through a frictional connection, using a specially designed tolerance sleeve. This innovative system promises to support automation efforts by easing mounting requirements, leading to less mounting time.

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Pneumatic Actuator and Positioner

GF Piping Systems (Wood Dale, IL) has released the Pneumatic Actuator and Positioner that offer a pneumatic valve pack with a lifetime as long as the entire piping system. The lightweight, non-corrosive, plastic Pneumatic Actuator type PPA, made from glass-fibre-reinforced polypropylene (PP-GF), offers optimal application fit for high chemical resistance, covering the whole ball valve range from DN10/15 (½") to DN 100 (4"). The PPA is available in two versions: compact double-acting or spring-loaded fail-safe open and fail-safe close. The spring technology adds application flexibility at the 4.2 bar standard range. A new feature is the integrated NAMUR interface for pilot valves, allowing decentralized supply and eliminating the need for special adapters. The Positioner offers an optimized application range for GF linear stroke, rotary actuators, and functionality expansion options.

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Economy and Precision Gearboxes

Axially space-saving, economical, IP65-compliant and designed for high radial and axial forces at the output, the WPLHE by Neugart GmbH (Kippenheim, Denmark) combines all the advantages of the successful PLHE, a unique combination of Economy and Precision gearboxes, as a right-angle variant. Specifically, the WPLHE features both the gearing of a proven economy gearbox and a high-performance output bearing with preloaded tapered roller bearings, which are otherwise commonly used in precision gearboxes. This means that the new right-angle gearbox tolerates high radial and axial forces of up to 8,000 N at the output. Compared to the coaxial PLHE the motor is rotated by 90° in this case, the WPLHE offers the ideal solution in confined spaces, for example in packaging and other special machines. The new WPLHE is now available in the three sizes 060/080/120, either as a single-stage version (in the ratio range 3 to 10) or as a two-stage version (ratios 9 to 100).

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Brushless Servo Motors

The new Hudson™ brushless servo motor models from Teknic (Rochester, NY) are rated for washdown applications per IP66K / IP67. These motors can withstand high pressure sprays (IP66K) and short periods of submersion up to 1 meter (IP67). The Hudson motors are thoughtfully designed for efficient manufacturability. This design combined with a high investment in automation equipment allows Teknic to cost-effectively build and test Teknic servo components in Upstate New York using skilled technicians. The Hudson motor non-proprietary, open-standard communication design allows the servo motors to be used with virtually any brushless servo drive regardless of protocol. Fast electrical time constants and high torque-to-inertia ratios provide responsive, accurate dynamic performance. Industry leading innovations such as harmonically pure windings, helically skewed stator laminations, and custom-balanced EPM rotors provide exceptionally smooth, quiet motion.

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Mobile Robotic Solution

Kuka (Augsburg, Germany) unveiled its mobile robotic solution developed in partnership with the world’s largest semiconductor fabricators that reliably transfers materials in areas unsuitable for traditional automated material handling systems. KUKA’s mobile robotic wafer-handling system for human/machine collaboration offers an ideal solution for material transport of 200 mm or 300 mm wafer boxes and SMIF boxes, open cassette machine loading and unloading. The system combines a KUKA LBR iiwa 14 R820 CR robot mounted on one of the company‘s KMP 200 CR automated mobile platforms. Both the robot and mobile platform are cleanroom class ISO 3 rated and feature advanced safety and navigational functionality. As a seven-axis robot, the LBR iiwa 14 R820 CR handles payloads up to 14 kg and has no external cabling for obstruction-free operation.

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Ultrasonic Collision Avoidance Sensor

Toposens (Munich, Germany) has launched its first commercial Toposens 3D COLLISION AVOIDANCE SYSTEM for mobile robots based on the proprietary Toposens 3D ultrasonic echolocation technology. Based on the principle of echolocation as seen in bats, the 3D Ultrasonic Echolocation Sensor ECHO ONE® compensates the drawbacks of optical sensors through sound-based triangulation in combination with sophisticated noise-filtering software. This in turn delivers robust 3D data output in real-time for each obstacle detected within the fully adjustable warn and stop zones. The zones can both be set to dynamically follow a mobile robot taking a left or right turn and adjust to the speed of the vehicle. The sensor sends the obtained data in a 3D point cloud format to the Toposens PROCESSING UNIT, which is equipped with an easy-to-configure advanced 3D collision avoidance software.

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Linear Voice Coil Motor

Moticont (Van Nuys, CA) has added a 0.750 in. (19.1 mm) diameter (smaller than a US Quarter) Linear Voice Coil Motor, to their expanding line of voice coil or moving coil motors. The LVCM-019-048-02 Linear Voice Coil Motor is a true servo motor featuring zero cogging, high accuracy, and high repeatability when operated in a closed position loop. Voice Coil Motors are clean, quiet, efficient, brushless high-speed linear servo motors. This small LVCM-019-048-02 diameter actuator has a 1.500 in (38.1 mm) stroke length and a high-force-to-size ratio of 7.4 oz (2.1 N) and a peak force of 23.5 oz. (6.5 N) at 10 percent duty cycle. This efficient, low inertia, high acceleration, brushless, high-speed linear motor has zero cogging and features high accuracy, and high repeatability. The motor features an 8-32 UNC-2B threaded mounting hole in the center of the housing and on the coil end to easily integrate into new or existing applications.

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Jet Pump Motors

AutomationDirect (Cumming, GA) has added the new IronHorse MTRJ series of jet pump motors to its AC motor lineup. The MTRJ centrifugal jet pump motors offer an economical motor solution and come in a TEFC enclosure with a 56J frame that has a threaded shaft for direct connection to a jet pump. These jet pump motors are available in 120/230 VAC from 1/3 to 2hp and in 208-230/460 VAC from 1/3 to 3hp at 3600rpm. They have a bolt-on – bolt-off base and single-phase models that in-clude built-in thermal protection. AutomationDirect has also added the MTS series of IronHorse motors, which offer premium efficiency motors and come with a IP69K-rated stainless steel construction that can survive the harshest of environments. They are available in sizes from 1/3 to 20hp in 208-230/480VAC 3-phase and in speeds of 1200, 1800, and 3600 rpm.

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Miniature Metric Ball Screw

PBC Linear (Roscoe, IL) has expanded its comprehensive portfolio to include Miniature Metric Ball Screw Assemblies. Building on the success of their lead screw technology, this combination of precision-rolled screw and compact nut is driving exceptional performance from an economical package. As with lead screws, ball screw assemblies are used to convert rotational motion to linear motion. PBC Linear currently offers miniature ball screws in diameter sizes of 6 mm, 8 mm, and 10 mm, with options for lead length and nut type. In addition, standard and special machined journals can be provided for unique customer requirements. Other options include fixed or floating end blocks. Dynamic load ratings are an important factor when determining the correct miniature ball screw for an application. PBC Linear will provide conservative dynamic load rating values within this product family, based on 1,000,000 Rev (N).

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LogiDrive System

The LogiDrive System from NORD DRIVESYSTEMS (Waunakee, WI) is engineered to be maintenance-friendly, cost-effective, and energy-efficient even with partial load ranges and low speeds. The DuoDrive integrated gear unit and motor combine with the total LogiDrive package to form a high-efficiency solution capable of high-power density, quiet operation, and simple Plug-and-Play commissioning. NORD’s LogiDrive® complete drive solution reduces planning and commissioning efforts by offering an energy efficient, standardized, and service-friendly system that is Industry 4.0 Ready. Permanent Magnet Synchronous Motor (PMSM) technology enables the LogiDrive system to maintain high efficiency even in partial load ranges and low speeds. This solution reduces system variants through standardized geared motor selections tailored specifically to application needs and a large operable speed range via variable frequency drive technology.

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Bush and Shaft Assemblies

NB Corporation’s (Hanover Park, IL) FIT Series of slide bush and shaft assemblies optimize clearance between shaft and bush. NB’s precision manufacturing assures customers the best clearance for their needs. There is no need to accept maximum clearances of + 17 microns when NB’s FIT series offers just + 4 microns. Shaft end placement deviation is reduced 70 percent from the standard 0.046mm when compared with the FIT Series which is only 0.011mm. Because NB achieves a perfect ‘fit’, you can take advantage of the cost savings afforded by specifying a standard slide bush, slide rotary bush or stroke bush rather than designing in clearance adjustable housings and trying to make do.

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Motion Design Magazine

This article first appeared in the October, 2022 issue of Motion Design Magazine.

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