Products

DC Brushed Motor

The RE 30 EB precious metal brushed motor from maxon precision motors (Fall River, MA) features a low startup voltage and a rated torque of 53 mNm. Other features include minimal highfrequency interference, ironless windings, and precious metal brushes. The motor is designed for haptic applications such as surgical robots. The motor can also be used as a sensor, acting as the sense of touch for registering mechanical resistance.

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Drive Module

ACS Motion Con - trol (Eden Prairie, MN) offers SPiiPlusUDMlc compact EtherCAT dual/quad-axis drive for equipment utilizing small motors such as pick/place machines, tabletop motion platforms, and wide-format inspection/ assembly equipment. The universal drives can run servo, stepper, and voice coil motors with a power range of 10W to 200W. The type of motor is selected by the user, and can be set differently for each drive axis. It is available in three current levels (cont./peak per axis): 1.25/2.5A, 2.5/5A, or 5/10A (dual-axis version only); supports motor bus voltages from 15-48Vdc; and has inputs for four digital incremental and up to two absolute encoders.

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Axis Calibrator

The XR20-W calibration system from Renishaw (Hoffman Estates, IL) wirelessly measures the an gular position of rotary axes to within ±1 arc second for testing the accuracy of lathes, multi-axis ma chine tools, mill-turn machines, trunnion tables, and spindles. It works in conjunction with XL-80 or ML10 laser interferometers, and combines the readings of the rotary calibrator and laser to determine positioning errors in axes under test. Off-axis rotary software allows it to be used even when it cannot be positioned directly on the rotary axis under test. The software calculates true position and records axis performance and errors when compared to the intended target. It attaches to a rotary axis via a flexible mounting ring assembly, and is centered within ±1 mm (0.04") using a visual aid. Flexible mounting options include an adapter plate for rotary tables with unsuitable center recesses, and a chuck adapter for lathes.

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Motor Cables

HELUKABEL® (Elgin, IL) offers the TOPSERV® Hybrid PVC and TOPSERV® Hybrid PUR cables that allow machine end-users, OEM machine builders, and drive system manufacturers to combine the existing power and feedback cables into a single cable in order to connect the frequency inverter to the motor’s feedback system. The cables combine the existing structure of power conductors and break pairs with an encoder cable element. The encoder element serves as the central communication interface between the frequency inverter and the motor-feedback system. The use of an encoder cable allows for enhanced transmission of motor position data and feedback, such as operating temperature. Combining both the power and data transmission elements into one cable allows a minimal amount of cabling to be used.

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Linear Guide Rails

Sterling Instrument (New Hyde Park, NY) has introduced the S99GWRM40 and S99GWRM80 series linear guide rail systems. The sliding element is a specially formulated polymer material suited for hard-anodized aluminum rails. The combination of the two yields low abrasion. The carriage and rail combination is a compact design, and the low, wide profile withstands high torque. They are stocked in lengths of 1,000, 2,000, and 3,000 mm. Both the size 40 and size 80 series rails are made of hard anodized aluminum. The carriage assembly for both series consists of an aluminum plate, die cast zinc blocks, and J® Polymer bearings. The overall height of both series is 24 mm.

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Integrated Motors and Drives

Schneider Electric Motion USA (Marlborough, CT) has introduced Lexium MDrive integrated motors and drives in two motor sizes, NEMA 23 & 34, and two product versions. The Pulse/Direction version is a motor and drive with 4 control modes: torque, speed, velocity, and step clock direction. The Motion Control version is a motor, drive, and controller for direct programming with 11,120 bytes of flash memory.

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Piston Pump

HAWE Hydraulics (Charlotte, NC) offers the V40M axial piston pump for open circuits in mobile machines. It has a displacement volume of 2.75 in3/rev, and its swash plate design allows for fine-tuning of the flow rate. With a self-priming speed of 2,900 rpm, it is suitable for applications that require operating pressures up to 3,625 psi, but can handle pressure spikes up to 4,600 psi. The pump is connected to the PTO or directly to the motor by an SAE-B flange. It is available with load-sensing and electric proportional controllers. Options include a thru-shaft with radial suction and pressure ports for mounting additional variable displacement pumps or auxiliary pumps. The pump has a length of 8.2", making it suitable for applications where a tandem pump is needed.

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