Miniature Linear Translation Stages

PI, L.P. (Auburn, MA) offers the L-505 miniature linear translation stages for precision motion, alignment, and positioning applications where space is limited. They are available with integrated linear encoders providing 0.05-micron and 0.005-micron resolution. The new design allows for compact, multi-axis assemblies. Two basic layouts are offered: a shorter, lower-profile version with a folded drive train (motor side-by-side with the platform) and a longer, narrow inline version. Both come in two travel ranges of ½" (13 mm) and 1" (26 mm). XY and XYZ combinations are also available. Motor options are servo and stepper motors in direct drive or gearhead configurations. The direct drive versions can achieve velocities up to 15 mm/second; the gear-motor versions up to 1 mm/second.

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Stainless Steel Gearboxes

ATLANTA Drive Systems (Farmingdale, NJ) released stainless steel gearboxes for applications that require washdown under high pressure. They are offered in three levels of corrosion protection, depending on the environment: Stainless Steel Shielded (L-Series), Coated Aluminum (Z-Series), and Stainless Steel (I-Series). The gearboxes are available in reduction ratios from 5:1 to 102:1, with output torque capacities up to 480 lb.ft. and input powers up to 5.4 hp. Features include housings with smooth surfaces, stainless steel 316L output shafts, viton seals with stainless steel 316L shield, hardened and ground gearing, all stainless steel 316L hardware, closed stainless steel 316L protection cap with o-ring, and fully modular IEC and NEMA C motor flanges.

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Gearboxes

IronHorse® cast iron worm gearboxes from AutomationDirect (Cumming, GA) feature 3.25" input to output shaft distance in ratios of 10:1, 15:1, 20:1, 30:1, 40:1, and 60:1 with outputs in left-hand shaft, right-hand shaft, dual shaft, and hollow shaft. The gearbox C-face interfaces match NEMA 56C, 145TC, and 182/4TC motor frame sizes. Constructed of cast iron one-piece housings, the gearboxes are designed to change drive direction by 90 degrees, drive a load at a reduced fixed ratio of the motor speed, and increase output torque by the same ratio. They are mountable in any direction except motor-up.

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Robot Hand

THK America (Schaumburg, IL) introduced the Type TRX robot hand three-finger linkage system that enables the grasping of objects of various sizes and shapes. The hand integrates fingers, actuator, and a driver controller. The robot is available in compact and large models. The compact Type TRX-S weighs 320 g and allows for the transfer of a heavier object when attached to a robot arm. The maximum gripping diameter is 100 mm. The large Type TRX-L weighs 1,200 g and features a maximum gripping diameter of 150 mm.

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Diaphragm Pump

KNF Neuberger (Trenton, NJ) offers the FP 400 diaphragm pump that combines self-priming, the ability to run dry, and maintenance-free operation with a pulsation level comparable to gear pumps. Pulsation is less than 150 mbar and the pump delivers up to 5 L/min of liquid at back pressures to 15 psi, with complete linear control of flow between 10% and 100% of the nominal flow rate. Pump flow is fully stable with fluid viscosities ranging between 1 and 150 cSt; it handles viscosities up to 500 cSt with some flow rate reduction. The pump provides low-shear conveyance of sensitive media, low vibration, noise level below 55 dBA, a chemically resistant flow path material options for use with aggressive media, and an IP65 protection rating.

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Rotary Shaft Encoder

Advanced Micro Controls (Terryville, CT) released the DC60 absolute multi-turn analog rotary shaft encoder in a 60-mm package. The encoder offers analog current or analog voltage output and can be ordered with a full-scale output over any number of turns between 1 and 1,024. The analog output has 16-bit resolution regardless of the number of turns encoded. It features resolver-based technology for durability, comes standard with IP67 protection rating, and is available with aluminum or full stainless steel housing. It is available with either 2.65" flange or 58-mm servo mounting styles. The units come with an industry-standard M12 connector and are available with either an end or side connect option.

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Gripper

Festo Corp. (Islandia, NY) announced the DHEF adaptive-shape gripper that automatically grips mixed objects with multiple shapes, unaligned objects, and numerous objects at once. The gripper gently forms around an object and can grip fragile items. It is suitable for human/machine interaction. The gripper uses a flexible silicone cap to draw an object in and capture it. Also available are DHAS adaptive gripper fingers for transferring or sorting fragile, oddly shaped, or tightly packed products that rigid grippers or vacuum cups cannot easily handle. Applications include transferring parts from tight packaging, handling sensitive parts, and moving parts to humans at manual assembly stations.

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Hexapod

The Hybrid Hexapod® from ALIO Industries (Arvada, CO) combines serial and parallel kinematic 6-D Nano Precision® stages to provide improved path performance, speed, stiffness, and a large work envelope with virtually unlimited XY travel as well as fully programmable tool-center point locations. The hexapod has less than 100-nm, three-dimensional, 6-axis Point Precision® repeatability for mission-critical applications in optical inspection, photonics, semiconductor, metrology, and medical device sectors.

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Machining Center

Mitsui Seiki (Franklin Lakes, NJ) offers the HU100-TS 100 tilt-spindle, 5-axis, horizontal machining center for large, hard-metal workpieces that are better suited for tilt-spindle processing than trunnion table operations. The machine’s fixed table and tilting head arrangement facilitates production of heavier and larger parts and can permit use of shorter, more rigid tooling. It can machine tough materials such as titanium and Inconel that are common in aerospace, power generation, and other high-value applications. The horizontal table can accommodate workpieces up to 1,900 mm (76") long and 1,250 mm (50") in diameter, weighing up to 2,000 kg (4,400 lbs.).

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Servo Drive

ADVANCED Motion Controls® (Camarillo, CA) introduced the FE060-25-EM–Flex-Pro™ digital servo drive that measures 1.5 × 1 × 0.6" (38 × 25 × 16 mm) for use in tight spaces. The drive can supply brushed, brushless, stepper, and linear servo motors with up to 25 amps continuous current and 50 amps peak current. Features include 10-55 VDC supply voltage, EtherCAT communication, incremental encoder and BISS C-mode feedback, configuration and full loop tuning, and torque, velocity, and position operating modes.

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Motor Starters

Crydom DRMS Series hybrid motor starters from Sensata Technologies (Swindon, UK) integrate the benefits of both solid-state and electromechanical relay technologies to produce a compact device that can control electrical power delivery to motors as large as 4kW. Suitable applications include packaging equipment, industrial process controls, and machine tooling systems. The starters include soft start, soft stop, and an internal mains disconnect relay in case of a fault. The soft start/soft stop function allows for the gradual increase or decrease of power control. Built-in overload protection eliminates an additional overload relay. Other features include forward/reverse, adjustable settings for starting/deceleration torque, starting/deceleration ramp, nominal motor current, and a reset button on the front of the unit for external manual reset. The 22-mm-wide DIN rail-mount motor starter package features an output rating of 9 Amps at 480 VAC, 24 VDC control voltage, and four LED status indicators.

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Long-Travel Stages

piezosystem jena (Hopedale, MA) introduced the SCANIUStwo XY piezo-based long-travel stage based on piezoelectric ultrasonic motors that provide permanent frictional connection between drive and output. The movements of the table are consistent, while the moving axis is prevented from slipping. The table does not create any electromagnetic fields. The table offers travel speed of up to 160 mm/s with a resolution of 40 nm, and travel range of 150 mm in the X-axis and 72 mm in the Y-axis. The overall height is less than 35 mm. Loads of up to 3 kg are handled by the cross XY table.

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Position Sensor

The posichron® PCFP25 from ASM Sensors (Elmhurst, IL) is a non-contact, ultra-flat magnetostrictive position sensor for space-restricted applications such as in mobile machines. The wear-free sensor has measurement ranges from 100 mm to 5,750 mm and consists of a magnetostrictive waveguide and a moveable position magnet. The sensor is resistant to dirt, moisture, and dust and resists shocks up to 50 g with IP67 protection. Analog and digital outputs are available. The sensor reaches a linearity up to ±0.02% f.s. For safety applications, the sensor can be mounted in redundant design.

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Rotary Encoders

The ENI58PL series incremental rotary encoders from Pepperl+Fuchs (Twinsburg, OH) offers IO-Link that enables custom configuration. IO-Link allows users to adjust the device according to the application and reconfigure it if there are changes to production and process flows. A variety of shaft, flange, and output options are available. It can be configured via Pepperl+Fuchs SmartBridge®, IO-Link master, or offline via PACTware. Existing hardware and software can be used to define voltage output level for short and long cable lengths with high or low frequencies. The encoder offers resolution of up to 16,384 pulses per rotation, temperature range of -40 to +85 °C, IP65/67 protection, and resistance to shock and vibration.

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Speed Reducers

Rolling Motion Industries (North Babylon, NY) offers the two-way MAR-17-2-3:1 and MAR-23-2-3:1 speed reducers using Traction Drive Technology. The MAR17-2-3:1 is designed for input speeds up to 3600 rpm with 10 to 20 in/lbs of torque; the MAR-23-2-3:1 is also rated for speeds to 3600 rpm with an input of 20 to 30 in/lbs of torque. The propriety engineered traction fluid with a coefficient of friction of 0.1 to 0.12 transmits torque among the four driving and driven elements. The traction fluid changes continuously from liquid to solid and back to liquid in the microscopic spaces between the driving and driven elements. Features include low vibration and no torque losses from 10 to 3000 rpm.

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Brushless DC Motor

Allied Motion Technologies (Amherst, NY) introduced the EnduraMax 75i Series 75-mm-diameter brushless DC motor with an all-digital integrated drive. The compact, high-power-density motor is capable of controlling torque, speed, and position in a range of applications including AGV vehicle traction or steering, medical patient-handling equipment, rotary/linear actuators, pumps, and material handling systems. Three standard stack lengths are available with continuous rated power up to 370W, continuous rated torque up to 1.3 Nm (190 oz-in), and rated speed of up to 5150 RPM. The 12, 24, or 48 VDC winding voltage choices make the motor suited for battery-powered applications.

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Shaft Bushings

Zero-Max (Plymouth, MN) announced Posi-Lok® keyless shaft bushings that secure shaft-mounted components into position. They eliminate keyways that can weaken or cause excess wear to shaft components. Nine different models in a range of sizes are available as well as various material choices to meet specific application requirements such as corrosion protection and environmental considerations. The bushings slide onto a shaft and provide zero-backlash performance with minimal radial and axial runout. Available models include stainless steel, electroless nickel-plated, and standard alloy steel.

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Motor Controls

American Control Electronics (South Beloit, IL) introduced the DCL series of low-voltage, brushless motor controls that operate in the 12-48 VDC power bandwidth with up to 30 amps peak (1 minute) or 15 amps continuously. The design removes many of the trim pots and jumpers associated with typical motor controls. Base units are Modbus-capable and come with one trim pot for calibrating maximum speed and two DIP switches for closed/open loop operation. Features include voltage output to energize the field winding of a shunt-wound motor, 1.37 form factor, 60:1 speed range, and diagnostic LEDs.

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Motion Design Magazine

This article first appeared in the August, 2019 issue of Motion Design Magazine.

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