Products

Hydraulic Cylinders

J.H. Williams Tool Group, a unit of Snap-on Industrial (Kenosha, WI), offers single-acting lock nut cylinders in diameter sizes from 2 to 12". Units are designed to support loads for extended periods without hydraulic pressure; an overflow port prevents cylinders from travel. Units are 10,000 psi/700 bar with weight capacity ranges to 100 tons. Lightweight aluminum cylinders in diameters from 2 to 12" and double-acting cylinders from 6 to 20" also are available. The double-acting cylinders include rod wipers to seal dirt and other contaminants.

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Triaxial Accelerometer

Dytran Instruments (Chatsworth, CA) has released the 3363AT series miniature triaxial accelerometers for modal analysis testing and environmental stress screening. The IEPE-type piezoelectric sensors have a laser-welded titanium design that includes ceramic sensing elements coupled to ultra-low-noise JFET electronics. The accelerometers feature frequency response down to 0.3 Hz, and are available in sensitivities of 10mV/g, 50mV/g, and 100mV/g. They have a 10-32 stud mount, 4-pin radial connector, and are hermetically sealed for normal operation in high-humidity and dirty environments.

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High-Pressure Valve

The Model 795 pneumatic dispensing valve from Tridak (Torrington, CT) dispenses very high-viscosity fluids, gels, and pastes that require high pressure to achieve suitable material flow. The valve can be used for silicone gels, greases, adhesives, and sealants. The valve features an adjustable flow control and repeatable fluid dispense cycles. The spool valve is designed to operate with fluid pressure to 2,000 psi (138 bar).

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Brushed DC Motors

Maxon Motor (Fall River, MA) offers two new motor sizes with IP54 protection rating and mounting brakes. The commutated DC motors, with output power of 200 and 250W, 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 for IP54 rating on the flange side. The motors have diameters of 50 and 65 mm, and 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 more than 90%.

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Linear Actuator Drive

Haydon Kerk Motion Solutions (Hollis, NH) offers the PCM4806 IDEA™ programmable linear actuator drive that is RoHS compliant and optimized to regulate a low-current power stage suitable for controller can-stack linear actuators. The compact electronic drive and fully programmable control unit feature a graphic user interface. Programming the drive is through the use of onscreen buttons instead of command sets or proprietary programming languages. The user interface features automatic population of the motor and drive parameters. Default values can be adjusted as long as they remain within the safe range calculated by the software. Other features include programmable current control, a single supply voltage of 12 to 48 VDC, 0.6Arms max rated current per phase, and 8 opto-isolated general-purpose I/O. The inputs are rated for 5 to 24 VDC, 4mA max per input.

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DC Motors

Pittman® Series 8690™ brush-commutated DC motors from AMETEK Technical & Industrial Products (Kent, OH) are 26-mm motors for data storage, medical, semiconductor processing, automation, and other high-performance applications. The iron core DC motors incorporate bonded neodymium iron boron magnets, and include 7-slot skewed armatures, resin-impregnated windings, and diamond-turned commutators. The motors are available in lengths of 1.798", 1.923", and 2.173". They provide continuous torque output up to 3.17 oz-in, peak torque to 20 oz-in, and speeds to 9,000 RPM.

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Piezo Driver

Newport Corp. (Irvine, CA) offers the XPSDRVP1, an XPS-compatible driver card for the piezoelectric stack-based NanoPositioning line of sub-nanometer-resolution stages. The driver eliminates the need for either an XPS pass-through card or an independent piezostack driver. An erasable programmable readonly memory (EPROM) stores the stage parameters in the connector, which also has embedded ESP plug-and-play technology that auto-uploads the stage ID and all necessary stage settings to the XPS. The single-axis driver features 60mA peak current, with an internal loop rate of 4 kHz. It can drive both open loop and closed loop NanoPositioning stages equipped with strain gage position sensors.

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