Product news

Latest and greatest offerings in the engineering marketplace

By Design News Staff -- Design News, December 15, 1997

Inverters

MasterDrives® family of ac inverters are for motion-control and closed-loop applications. The MC version of the Micro/MidiMaster ac inverters are for motion control in the 0.5 to 200 hp power range. Users can upgrade existing MasterDrives hardware with the MC technology, or opt for a compact MC form factor. The size of MasterDrives option boards has been cut in half, permitting installation of two boards in all three standard slots. The boards include various protocols for network or peer-to-peer communications, absolute encoder, and resolver interface.
Siemens Energy and Automation Inc., 3333 Old Milton Pkwy., Apharetta, GA 30202.

Sensor

The E3T photoelectric sensor features a built-in amplifier. The flat-pack model measures 24 × 12 × 3.7 mm, and the side-view version 18.5 × 7 × 9 mm. The sensor is available in both side-view and flat housing configurations, as well as through-beam, retroreflective, and diffuse models. The through-beam model can be used to detect lead frames, IC chips, or any object that requires high-precision positioning. Limited reflective applications include detection of carrier trays and dark opaque objects.
Omron Electronics Inc., 1 E. Commerce Dr., Schaumburg, IL 60173, FAX (847) 843-8081.

Gearhead

Harmonic drive gearhead is available in 50:1, 80:1, and 100:1 reduction ratios, targeting the precision reducer for applications where higher speed or resolution are required. Measuring 20 mm in diameter, these zero-backlash gears deliver rated torques up to 2.6 inches-lb and peak torque ratings of 9.1 inches-lb with input speeds up to 10,000 rpm. Gearheads are available either with an input shaft or as a close-couple unit for direct mounting to a servo or stepper motor.
HD Systems Inc., 89 Cabot Ct., Hauppauge, NY 11788, FAX (516) 231-6803.

Transducer

The PS-10,000 silicon pressure transducer features a pressure range to 10,000 psi, a static error band as small as 0.05%, FS (non-linearity, hysteresis, and non-repeatability), and pressure ranges from 0-5 to 10,000 psi. The signal conditioner inside each PS-10,000 compensates for linearity and thermal error. Each unit is conditioned and burned-in during extensive pressure and temperature cycling to enable a frequency response of 3,000 Hz. The circuit bypasses the need for A/D and D/A converters, allowing the PS-10,000 to set the "zero and span" within tolerances of ±0.3%. The PS-10,000 provides interchangability and easy installation. Lucas Control Systems Products, 1000 Lucas Way, Hampton, VA 23666, FAX (757) 766-4297.

Interface panels

The OptiMate^TM Series includes the 600-Series of operator interface panels, which features user-configurable function keys with LED indicators; a two-line, 20-character display for up to 160 user-defined messages; annunciator lamps available in various colors; and setpoint display capability. With the use of the OP-9001 communications master and RS-422 protocol, up to 31 600- or 1000-Series panels can be daisy-chained over a maximum distance of 4,000 feet. All 600-Series devices require OP-WINEDIT Version 2.0 software to configure user-defined push buttons, display data, and messages.
PLCDirect, 3505 Hutchinson Rd., Cumming, GA 30040, FAX (770) 889-7876.

Motors

Stepper motors are used in the data processing, optics, measuring, physical and medical instrumentation, and machine tools fields. Motor versions include a stepper motor with a size of 11 mm and a resolution of 120 full steps per revolution for medical applications. Other motor sizes include 19, 25, and 32 mm diameter motors used in the medical and optical fields, laser technologies, semiconductor processing machines, and other micropositioning tasks. Size 42 and 52 mm diameter motors are targeted for small carriages and coordinate tables, while size 57 to 107 mm motors and above with torque values ranging from 65 to 2,430 inch-oz are for positioning tasks in handling applications.
Phytron Inc., 1345 Main St., Waltham, MA 02154, FAX (781) 647-3526.

Headers and board stackers

Common pin lengths are available for 0.10-inch-pitch (2,54-mm-pitch) headers for the BHT Series, and 2-mm-pitch (0.079-inch-pitch) headers for the BTT Series. Board stackers on 0.10-inch (2.54-mm) pitch for the BHB Series and 2-mm (0.079-inch) pitch for the BTB Series provide a large cross-section of common board spaces in 0.005-inch (0.12-mm) increments. The "Cool Cat" units are available in flash gold or tin plating and surface-mount and right-angle termination designs.
Samtec Inc., Box 1147, New Albany, IN 47151, FAX (812) 948-5047.

Valve

8M compact ^1/4 valve is used to control compressed air and is 1 × 6 × 11/2 inches. The valve is manifold mountable, which allows electrical connection to solenoids. Solenoid coil wattage is 1W.
Watts FluidAir, 9 Cutts Rd., Kittery, ME 03904, FAX (207) 475-4004.

Servomotor

AC servomotor allows the user to choose the optimal feedback device best suited to the application. Options include a resolver, an incremental encoder, or a SinCos resolver for absolute position. Features include; small size, long life, high temperature operation, and operational safety features. System cables with plug-in connectors enable quick and easy connection and security of set up. This servometer can be coupled to the UL, Canadian UL, and VDE-approved 9300 Series digital ac servo drive, with its digital servo loops, motion control, and auto tuning features in a MS Window^TM environment for optimum drive performance.
Global Servo Drives, Div. of Lenze, Box 167, Montvale, NJ 07645, FAX (914) 627-0546.

Gearheads

DuraTRUE^TM planetary gearheads are a possible replacement for hybrid planetary/spur gearheads and provide a peak torque of 7,377 inches-lb with a standard backlash of 8 arc-minutes. Ratios between 3:1 and 100:1 are available in 60, 90, 115, and 142 mm² frame sizes. The precision steel gears are hardened to HRC 60 minimum for long life, and the self-aligning RediMount^TM system simplifies mounting to motors.
Thomson Micron, LLC, 50 Alexander Ct., Ronkonkoma, NY 11779, FAX (516) 467-9814.

Vision system

CV Series compact vision system provides a processing time of 1/60 second, high resolution of 240,000 pixels, and a 10,000 second synchronizing shutter. Other features include illumination adjustment, auto tracking, and pattern making. A 256-level gray search function improves the reliability of positioning and shape differentiation. Four imaging processing modes are offered: area detection, pattern matching, absolute position detection, and relative position detection. Use of a PC is not required. All the settings and detection conditions can be checked by accessing one screen.
Keyence Corp. of America, 50 Tice Blvd., Woodcliff Lake, NJ 07675, FAX (201) 782-0848.

Laser triangulation system

NAiS® brand LM10 Series offers precision control for various industries including web and textile manufacturing, lumber milling and processing, and baking. This single-channel processing technology reduces the number of circuit paths down to one processing chip from the two used in conventional systems. Features include a visible red laser beam, controllers that can be matched or calibrated with any sensor head, immunity to color changes, and surface roughness. The elimination of crosstalk allows heads to be mounted closely together without mutual interference.
Aromat Corp., New Providence, NJ 07974.

Peristaltic pumps

Peristaltic pumps are available for registered medical products manufacturers who have or are developing products for angioscopy, arthroscopy, endoscopy, laparoscopy, irrigation, waste removal, or other surgical/patient care procedures. Fluids or media move only through the disposable, medical-grade tubing; no pump part wetted. Features include selectable or preset flow rates. Fluids can be moved in fractions of milliliters up to 24l per minute. The pumps can also handle viscous or particulate-laden fluids, can run dry without damage, and have reversible flow direction.
Barnant Co., 28W092 Commercial Ave., Barrington, IL 60010, FAX (708) 381-7053.

Inlets

The 700W and 771W Series power entry inlets are for 2.5A/250V ac applications. Various European-, British-, and domestic-style cords can be used as a result of the figure-eight thermoplastic construction. The 700W Series is screw-mountable and can be pc-board-mounted or have 1.5 × 2.3 solder tabs. Snap-in mounting along with the same pc- board and solder tab options are featured in the 771W Series. Both series are UL, CSA, SEMKO, DEMKO, NEMKO, and SETI approved.
Qualtek Electronics Corp., 7675 Jenther Dr., Mentor, OH 44060, FAX (216) 951-7252.

Spring clamp

The AWAB Radial^TM spring clamp provides constant tension force to compensate for hose expansion and contraction during hot/cold cycles. An 180-degree stainless-steel spring liner is attached inside the band. As the hose expands under hot cycles, the expanded hose material pushes the spring back and into the concave liner. Conversely, as the hose cools off the liner springs back to provide the same uniformed clamping force as before the expansion. The concave liner provides a 2-mm radial movement which corresponds to 1/4-inch tightening at the gear housing.
ABA of America, 4004 Auburn St., Rockford, IL 61101, FAX (800) 965-5904.

Encoders

Modular absolute encoders are for severe electrical (EMI) and physical environments. These units convert any shaft input to BCD or binary information corresponding directly to the shaft angle with an accuracy of ±1 point in 1,000. They consist of a 1.1-inch diameter transducer and a 2.6 × 3.1 × 0.6 inch pc-mounting module. The shaft transducer used keeps the units free from deficiencies such as limited life brushes, light sources, brush noise, ambiguities, and limited resolution. The zero point can be reset to any value by an available offset adjustment.
Computer Conversions Corp., 6 Dunton St., East Northport, NY, 11731, FAX (516) 261-3308.

Motors

CE Series motors feature a pressure-compensated balance plate to provide volumetric efficiency at startup and high torque during running conditions. Additional features include dual-roller bearings and a high-pressure Viton® shaft seal which is positioned to minimize the effects of shaft deflection on the seal. The Roller Stator® motor design offers low-speed performance down to 1 gpm and 3,000 psi. Displacements are available from 7.4 to 45.6 inches³.
White Hydraulics Inc., Box 1127, Hopkinsville, KY 42241, FAX (800) 544-2627.

Flow controller

The Series TSP liquid-flow controller line combines a liquid-flow switch with a failsafe relay-type controller to constantly monitor the presence or absence of flow and initiate direct control or alarm when necessary. These full-featured devices include adjustable time delay from 0.15 to 60 seconds and LED indication of sensor, relay, and power status. Models are available with an integral 50,000 candlepower Xenon tube strobe light which operates at one flash per second to assure response when abnormal flow conditions occur. The enclosure can be rotated 300 degrees for optimum visibility.
Dwyer Instruments Inc., Box 373, Michigan City, IN 46361, FAX (219) 872-9057.

Microstepping driver

IM481H microstepping driver measures 1.1 × 2.7 × 0.17 inches. With the ability to drive stepping motors up to size 23, the IM481H features short-circuit and thermal protection, adjustable automatic-current reduction, single supply at full step, and fault outputs. This ultra-miniature 96W bipolar drive accepts an input voltage of 12 to 48V. Advanced ASIC technology reduces motor heating and allows low-inductance stepper motors to help increase high-speed performance and efficiency. Fourteen built-in microstep resolutions, from 400 to 51,200 steps/revolution in binary and decimal, can be changed at any time without resetting the driver.
Intelligent Motion Systems Inc., Box 457, Marlborough, CT 06447, FAX (860) 295-6107.

Switches

MJTP Series of tact switches includes three sub-families of products: 12-mm square models, 6-mm thru-hole models, and 6- and 4-mm surface-mounting models. These single-pole momentary switches use a snap-dome construction that provides electrical life to 100,000 cycles of operation minimum. The contact rating for these models is 50 mA at 12V dc and the initial contact resistance is 100 m{OMEGA} maximum at 5V dc, 10 mA. All models have a dielectric withstanding voltage rating of 250V ac. These switch models are for applications in computers and peripherals, miniature and hand-held equipment, communications and telecommunications equipment, and others.
APEM Components Inc., Box 544, Wakefield, MA 01880, FAX (617) 245-4531.

Motion controller

The DMC-1700 Series of ISA bus motion-control cards provide one to eight axes of motion control on a single card. Each card allows any combination of axes using step motors, servo-motors, and hydraulics, with each axis configurable for flexibility. The series features two communications channels, including a high-speed FIFO for sending and receiving commands, and a DMA channel that places a record directly into PC memory and provides instant access to status and parameters. A 2 Mbyte Flash EEPROM provides enough non-volatile memory for storing applications programs, parameters, arrays, and firmware.
Galil Motion Control Inc., 203 Ravendale Dr., Mountain View, CA 94043, FAX (650) 967-1751.

Transmitter

The "49'' Series is a compact, highly accurate pressure transmitter for severe environments found in aerospace and automotive applications. Features include 2,000 to 100,000 psi, stainless-steel construction, and internal shunt calibration. Typical applications include internal combustion, jet, and rocket-engine testing, as well as airbag tests. A silicon piezoresistive sensor provides accurate readings and high overpressure protection.
Viatran Corp., 300 Industrial Dr., Grand Island, NY 14072, FAX (716) 773-2488.

Thermocouples

Tungsten-coated thermocouples are for measuring temperatures in graphite and carbon atmospheres. The coating is applied onto a molybdenum- or tantalum-sheathed thermocouple. This coating extends the life of the thermocouple from a few hours to over two months at temperatures of more than 2,000C. The thermal elements consist of ANSI-Type C and the internal insulation can be MgO, BeO, or HfO₂. Units are available with sheath diameters from 1/8 to 1/4 OD and lengths to more than 24 inches.
Nanmac Corp., 9-11 Mayhew St., Framingham, MA 01701, FAX (800) 927-3357.

Paste solder

EFD SolderPlus is a dispensable-grade paste solder for use with air-powered dispensing equipment. Produced in a variety of alloy/flux combinations, the homogeneous blend eliminates flux oils that can lead to cold solder joins. SolderPlus is available in ten packs in 35, 75, and 150 g syringes. Features include precise, repeatable solder deposits for improved process control.
EFD, 977 Waterman Ave., East Providence, RI 02914, FAX (401) 431-0237.

Valve

Mini-proportional valve features a 250Hz frequency response and less than 3% hysteresis. This valve is targeted for medical, industrial controls, and alternative-fuels applications. An isolation diaphragm separates the working fluid from the coil and armature, thereby limiting the fluid path exclusively to the poppet area. The standard valve is made of stainless steel with viton elastomeric components. This valve is suitable for both gases and liquids. With no rubbing contact surfaces, this 2-way poppet valve creates no sliding friction, resulting in operation on a straight, dc electrical signal with no dithering required.
Teknocraft Inc., 425 West Dr., Melbourne, FL 32904, FAX (407) 768-8732.

Gearheads

Gearheads are for the semiconductor industry and operate in vacuum environments. The gearheads are self-contained, with Viton seals, eliminating the potential for particulate generation or contamination. A vacuum-rated grease, resistant to high temperatures, and a low-pressure value are used to lubricate the gearhead. In ultra-high vacuums of 10^-4 Torr or greater, all plastic materials are eliminated. Gearboxes are available without seals while maintaining vacuum-compatible lubrication.
Bayside Controls Inc., 27 Seaview Blvd., Port Washington, NY 11050, FAX (516) 484-5496.

Actuator

The LA34 actuator features 2,200 lbs push/1,300 lbs pull, a 0.276 inch/sec speed at 1,750 lbs load, a safety factor of 4 according to EN60601-1, and a safety nut push/pull. The LA34 also offers a patented quick-release system that makes stepless retraction of the actuator under load possible. Applications include industrial and medical.
Linak U.S. Inc., 11001 Bluegrass Pkwy., Suite 300, Louisville, KY 40299, FAX (502) 267-9911.

Chain tensioner

Chain tensioner is a toothed ring made from a recyclable elastic material. The ring is placed between two strands of the chain where, because of its elastic nature, it deforms to an elliptical shape as a result of the compression between the strands. In turn, the ring absorbs any of the slack within the system. This chain tensioner is free-standing, effective in vertical and diagonal drives, maintenance-free, and self-lubricating. It performs the job of a tensioner and damper and can be used in dusty and dirty environments. The chain tensioner is targeted for applications where maintenance schedules are a restraining factor on in-process time scales and where vibration may have detrimental effects.
Renold Chain, UK Sales, Horninglow Rd., Burton upon Trent, Staffordshire, England, FAX +44 1283 512628.

Air compressors and vacuum pumps

2650 series twin-piston air compressors and vacuum pumps are oil-less, Wob-l® piston models with permanently lubricated bearings and lightweight die-cast aluminum components. The series has an open flow rate from 2.80 to 5.60 CFM (79.3 to 158.6 LPM), with a maximum intermittent pressure of up to 50 PSIG (3.4 bar), maximum continuous pressure of up to 40 PSIG (2.8 bar), and maximum vacuum of up to 27 inches Hg. (912 mbar).
Thomas Industries, Box 29, Sheboygan, WI 53082, FAX (414) 451-4276.

Sensors

Series 300 line of thin-film RTD temperature sensors and transmitters are available with a Windows-based software allowing the user to configure their own RTD assemblies and is for industrial applications. Series 300 is an "off-the-shelf" RTD that meets the conditions of industrial environments. A thin-film platinum RTD element is encapsulated with a potting material for protection from shock, vibration, moisture, and lead-wire breakage. A seal around the thin-film element and its lead-wire junctions seals out moisture and adds mechanical protection to the lead-wire element connections.
Burns Engineering Inc., 10201 Bren Rd. E., Minnetonka, MN 55343, FAX (612) 935-8782.

Components

Components for vacuum system control include vacuum switches, available in inductive universal, electromechanical, and pneumatic designs. The adjustable vacuum switches can be set anywhere in the range of 1.5 to 28.5 inches Hg. The pre-set vacuum switches simplify control of the vacuum system. Energy-saving (ES) systems control the incoming compressed-air flow to multi-ejector air-driven vacuum pumps. The way the ES system works can be compared to that of a thermostat in a heating system.
PIAB Vacuum Products, 55 Accord Park Dr. Rockland, MA 02370, FAX (781) 792-0574.

Transducer

LDT100 Series of ultrasonic linear-displacement transducers offer direct-displacement measurement and control in a 2- to 36-inch and longer stroke range with a ±0.007 resolution and a ±1% accuracy over temperature. Features include 12-bit D/A analog output, a 30 measurement-per-second sample rate, and optional serial outputs, all in a corrosion-resistant housing. The LDT100 is targeted for real-time linear displacement measurements of machine members, structural joints, suspension components, and other linear- and rotary-position control jobs ranging from automotive to mining applications.
Contaq Technologies Corp., 15 Main St., Bristol, VT 05443, FAX (802) 453-4250.

Connector system

The Mini-Fit®, HCS^TM high-current connector system features a 4.2 mm-centerline power connector that can carry up to 12A per circuit, depending on housing configuration. Applications for the connector include computers and computer peripherals, modems, cellular phones, and power supplies. The connectors use standard Mini-Fit housing configurations and can be designed into wire-to-wire, wire-to-board, and board-to-board applications.
Molex Inc., 2222 Wellington Ct., Lisle, IL 60532, FAX (630) 969-1352.

Enclosure

PS+PLUS modular enclosures for multi-bay applications feature heavy-gauge walls and a roof that enables the enclosure to be laid on its back for mounting panel installation and transport. Included in the PS+PLUS modular enclosures are multiple removable doors and mullions, as well as an integrated wire tub for storage or future expansion. An integrated modular plinth allows for easier transportation and system expansion. These enclosures can be configured from 1 to 6 doors in flange-mounted disconnect (FMDC) and non-FMDC versions.
Rittal Corp., 1 Rittal Pl., Springfield, OH 45504, FAX (513) 390-5599.

Seat-testing system

The USTM-3000 robotic seat-testing system features a 3-axis load cell for measuring actual seat loads and generating real-time feedback signals. A 6-axis with an end effector duplicates human contours. USTM-3000 machines are available in configurations ranging from a basic system on a 6 × 8-ft baseplate to a large unit able to handle multiple seats mounted in a full circle around the robot. All systems feature industrial-rated continuous-duty robots and controls, and a full-perimeter safety fence for operator safety.
Control Power-Reliance, 310 Executive Dr., Troy, MI 48083.

Leveling device

The LMS vibration and shock-control swivel leveling device provides low-frequency vibration isolation, leveling, and shock attenuation for sensitive electronic and industrial manufacturing equipment. The LMS leveler features more than 1/2 inch of black neoprene elastomer permanently bonded to the leveler base, and its wide 3-inch radial ring neoprene pad isolates loads at low frequencies while maintaining a high degree of stability.
Vlier, 40 Guest St., Brighton, MA 02135, FAX (617) 254-0541.

Pulse tools

Pistol-grip pneumatic pulse tools are for use in industrial assembly. Available with 3/8- and 1/2-inch square drives, as well as 1/4 and 7/16 quick-change bit-holders, this pulse tool line features a torque control system with auto shut-off. This allows precisely tightened connections and increased efficiency through reduced air use.
Bosch Automation Products, 816 East Third St., Buchanan, MI 49107, FAX (616) 695-5363.

Terminal block

The MKDS 3-B internally bridged PCB terminal block eliminates the need for labor-intensive wire jumpers on a PCB board. The block is and can be wired directly from the pc-board to the closest piece of equipment.
Phoenix Contact Inc., Technical Service Dept., Box 4100, Harrisburg, PA 17111, FAX (717) 944-1625.

Test system products

HP VXI products feature a mainframe family, mezzanine modules, and C- and B-size cards. All are VXI plug-and-play compliant, and each instrument comes with a VXI plug-and-play instrument driver for the Windows 95 and NT framework. The HP E8400 13-slot, C-size mainframe cardcage for manufacturing environments is equipped with a cooling system. Monitor lights on the front panel provide system status while the auxiliary connector offers access to diagnostic information.
Hewlett-Packard Co., Test and Measurement Organization, Box 50637, Palo Alto, CA 94303.

Valve

The Model 780S precision spray valve lubricates coil stock, 4 inches or less and dies used in high-speed punching and stamping operations without drips or overspray. Simple design and precision-machined components ensure high reliability and millions of cycles without maintenance. The valve employs two separate air inputs. Actuating air from one input opens the valve, and the other input uses low-volume low-pressure (LVLP) air to atomize lubricant without overspray. LVLP air briefly continues at the end of the cycle to atomize any remaining fluid and eliminates drips that can cause localized over-lubrication which leads to slug pulling.
EFD Dispense Valve Systems, 977 Waterman Ave., East Providence, RI 02914, FAX (401) 431-0237.

Vacuum pumps

TC600 turbo-drag vacuum pumps feature an integrated turbo controller and an all-encompassing design that features a simple plug-and-play principle. One TC600 unit controls all standard and corrosive pumps from 70-2,200l/sec. The TC600 unit has built-in connectors for adding on peripherals, and with the plug-and-play principle, the integrated pump controller can be customized to meet individual vacuum applications. Peripherals including venting, interlocking backing pump control, heaters, and air cooling can be connected to the basic unit.
Pfeiffer Vacuum Technology Inc., 24 Trafalgar Sq., Nashua, NH 03063, FAX (603) 578-6550.

Digital control system

The SYNAX digital control system is for highly flexible, accurate electronic control of "shaftless" commercial and publication printing. The SYNAX system eliminates the need for a mechanical line shaft, gearboxes, and cams. With SYNAX, a machine is sectionalized into separate stand-alone sections, each powered by its own high-performance digital drive. A master control with SYNAX firmware electronically synchronizes all machine operations. Using the SERCOS digital communications standard, a daisy-chained fiber-optic cable provides real-time communication between the master control and all drives on the machine.
Indramat, 5150 Prairie Stone Pkwy., Hoffman Estates, IL 60192, FAX (847) 645-6201.

Spray machines

The 310940 Series of spray machines is computer-controlled with memory capability for the automatic control of all spraying variables. This 3-axis machine features spray equipment traversed horizontally and panels indexed for lapping strokes, or moved constantly to simulate production-line spraying. The distance between the spray gun and panel can be programmed to move when required. All types of spray equipment can be used, including conventional air atomized, airless, electrostatic, HVLP, and power, with computer control over air and fluid pressures.
Spraymation Inc., 5320 N.W. 35^th Ave., Fort Lauderdale, FL 33309, FAX (954) 484-9778.

Surge-protection modules

The SD Series of surge-protection modules are 7 mm wide and feature high packing densities. The module can be installed onto a standard DIN rail by a manual operation that automatically makes the ground connection. Built-in loop disconnect and fusing eliminate wiring accessories and allow for maintenance without additional disconnect terminals. The series is available in a range of voltage ratings for processes using RTDs, thermocouples, 4-20 mA loops, digital signals, shutdown systems, and fire and gas detection systems.
MTL Inc., 9 Merrill Industrial Dr., Hampton, NH 03842, FAX (603) 926-1899.

Insulation

Marinite 2200 high-density millboard insulation can withstand temperatures to 2,200F and meets the IARC Group 3 health classification. Features include 1,000 × 1,000-mm² boards that range in thickness from 2 to 10 mm and a dimension shrinkage of 1,832F. Insulation is useful for applications involving Lehr rolls, high-temperature gaskets and seals, and furnace hot-face linings; as well as for insulating barriers in appliances; fire protection and efficient refractory backup.
BNZ Materials Inc., 6901 S. Pierce St., Suite 260, Littleton, CO 80123, FAX (303) 978-0308.

Semiconductor

TSE transformer soft starter is an electronic semiconductor with a microprocessor-controlled patented switch-on procedure. A short pre-magnetization of the transformer core results in a smooth power-on without any spikes. If operated for more than 2 sec, the internal electronic switch will be bridged by built-in bypass relays. Thus, the integrated heat sink in the transformer can be kept small. The usual type-B circuit breaker is used as a cut-out for the transformer and there is no need for a secondary fuse. Normally configured as a compact device for a nominal current of 16A, the TSE transformer can be combined for up to 63A using an external thyristor module.
Carlo Gavazzi AG, CH-6312 Steinhausen, Switzerland, FAX +41 41 740 45 40.

Software

Release 3.0 of PDEase2D^TM finite-element analysis (FEA) software is Windows 95- and NT-compatible. A scientific notebook interface includes interactive animated graphics, a DataViewer^TM for displaying and editing numerical data, text processing, hypertext links, and a filter for importing drawings from major CAD packages such as AutoCAD®. This software is targeted for solving problems in heat transfer, solid mechanics, and other fields.
Macsyma Inc., 20 Academy St., Arlington, MA 02174, FAX (781) 646-3161.

Lifters

Standardized electro-mechanical lifters are for welding and assembly operations. A scotch-yoke drive provides true harmonic motion and a stabilized tool-mounting platform. Anti-friction linear guides are used to constrain both horizontal and linear motions of the scotch yokes and moving lifter parts. Lifters are for use at automotive body assembly plants in conjunction with robotic spot-welding applications, and can handle up to 2,000 lbs of tooling with a 3-hp motor.
DCT Inc., 20101 Hoover Rd., Detroit, MI 48205, FAX (313) 839-1486.

Motors and gearmotors

Electromagnetic interference (EMI) suppression options are available for dc motor and gearmotor assemblies. Motors and gearmotors can be customized with passive components, such as capacitors and inductive ferrite beads, to filter EMI. For low-frequency EMI below 30 MHz, capacitors are installed inside the motor frame. For high-frequency noise above 30 MHz, ferrite beads reduce EMI and are added to customer-specified wire and cable harnesses.
Pittman, 343 Godshall Dr., Harleysville, PA 19438.

Servomotors

Brushless dc servomotors are for applications where service life, reliability, compactness, and the capability of operating in extreme environments are decisive factors. These dc servomotors are based on the System Faulhaber® principle. Hall-effect sensors are built into the motor to provide electronic commutation of the three phases.
Minimotor SA, CH-6980 Croglio, Switzerland, FAX +41 091 611 31 10.

Hose wrap

SpiralGuard^TM free-form spiral hose wrap can be placed around a single hose or bundle of hoses to protect against abrasion and/or crushing. Applications include equipment and machines in factories or in the field. Manufactured from a high molecular weight high-density polyethylene (HDPE), SpiralGuard provides high-impact hose protection. The beveled edge design prevents the wrap from snagging or cutting, allowing installation either before or after the hose is in service.
Alliance Plastics, Box 7284, Erie, PA 16510, FAX (814) 898-1638.

Valves

Series "FC" thermoplastic flow-regulating valves are for control applications and maintain a constant rate of flow of corrosive or ultra-pure liquids in a process system. The valves feature a special diaphragm which changes shape with inlet pressure changes. As a result, the valves will automatically maintain a steady pre-determined rate of flow in the process system despite inlet pressure changes of between 15 and 120 psi. Normally used to replace more complex flow-control devices, these valves have only one moving part.
Plast-O-Matic Valves Inc., 1384 Pompton Ave., Cedar Grove, NJ 07009, FAX (973) 256-4745.

Software

ModelServer Publisher^TM is based on Netscape Communications Corp.'s Enterprise Server^TM award-winning web server software and converts and publishes engineering drawings and models on demand to web browsers so users get accurate and up-to-date information. To view engineering drawings, maps, or models over the web, users are not required to have MicroStation or AutoCAD. By simply using a common web browser, users can view the engineering work in progress.
Bentley Systems Inc., 690 Pennsylvania Dr., Exton, PA 19341, FAX (610) 458-1060.

Sliders and thrusters

Sliders and thrusters feature four precision- adjustable hard stops which provide absolute stability and repeatability in the stopped position. These devices feature permanently lubricated linear ball bearings and steel endplates, rather than composite bearings and aluminum endplates, for reliable performance and longer life.
PROMEC, 90 South Park St., Willimantic, CT 06226, FAX (860) 423-9936.

Lamp pulsator

The STOP-ALERT^TM automotive lamp pulsator increases the visual effectiveness of automotive lamps in headlight, taillight, stoplight, and backup-light applications. This 100% solid-state device is connected in series with one or more lamps to cause a pulsating or "glimmering" effect and is engineered for all 12V vehicular electrical systems. The STOP-ALERT possesses an incandescent power rating of 60W continuous, 120W intermittent, and a maximum surge current of 160A.
Amperite Co. Inc., 600 Palisade Ave., Union City, NJ 07087, FAX (201) 864-3955.

Ribbon slitter

Ultrasonic multi-cut slitter system provides noiseless, continuous slitting and sealing of ribbons in a variety of widths and cuts through synthetic materials without knives or hot wire. The fabric passes between multiple ultrasonic power heads called horns and a pressure-controlled anvil. The horns, which are mounted side by side, can be positioned to produce various ribbon widths, as narrow as 1/4 inch or as wide as the application may require. The cutting tools are dove-tailed and gib-mounted to permit adjustment for different applications.
Sonobond Ultrasonics, 887 South Matlack St., West Chester, PA 19382, FAX (610) 692-0674.

Monitor system

Model 156A charged-plate monitor system provides quantitative measurements of the effectiveness of air ionization systems. The unit employs a charged-plate monitor design that uses an ultra-high-impedance, high-voltage follower circuit to monitor the ion collecting plate voltage.
Trek Inc., Box 728, Medina, NY 14103, FAX (716) 798-3106.

Motors

The A-Series of encoder-based motors are part of the Delta Series^TM drive line and complement the existing resolver-based motor choices. The motors are rated at 1,500 rpm and are available over a power range from 400W to 11 kW to correspond to the ratings of the Delta Drivers. The motors incorporate a precision 2048 line encoder, creating a 8192 pulse/revolution system, and have higher rotor inertia than standard Delta motors. Motors are targeted for direct-drive applications.
Industrial Indexing Systems, 626 Fishers Run, Victor, NY 14564, FAX (716) 924-2169.

Molded rubber seals

Molded rubber seals solve problems in central vacuum cleaner systems and applications involving air flow and requiring a seal around a motor. The seals slip onto the base of an electric motor and replace a flat die-cut part, needing no adhesive to hold them in place. They provide a vacuum seal between the motor and the housing, reducing motor noise while dampening vibrations. The seals are made from ethylene propylene with a 60 durometer hardness, and can also be supplied in neoprene, nitrile, or silicone.
PressCut Industries, 2828 Nagle St., Dallas, TX 75220, FAX (214) 350-4713.

Switch

CompuSwitch controls up to four PCs (any combination of PS/2 and AT systems) from a single keyboard, monitor, and mouse. The 4-channel unit dedicates individual keyboard and mouse emulators to each PC so that every connected PC "sees" its own keyboard and mouse all the time to preserve system booting and operation. Features include a 1.75 inch desktop chassis, a optional rackmount kit, and hot-key commands.
Raritan Computer Inc., 400 Cottontail Ln., Somerset, NJ 08873, FAX (908) 874-5274.

Springs

HELI-CAL Flexure technology is applied to the design and manufacture of precision-machined springs and can precisely match the workload and dimensional requirement for a variety of applications. Machined springs can be manufactured to close dimensional tolerances. When used as a coupling or u-joint, the HELI-CAL Flexure employs a curved beam to transmit torque while compensating for lateral, axial, and angular misalignments.
Helical Products Co. Inc., Box 1069, Santa Maria, CA 93456, FAX (805) 928-2369.

Power factor monitor relay

Model LWN is a compact, 45-mm wide, rail-mounted unit that monitors asynchronous motors, operating under varying loads, connected to single- or three-phase ac power lines. The measuring principle is based on evaluation of phase displacement between current and voltage of a phase. Currents up to 20A can be monitored directly without a current transformer, and the monitored voltage can range from 110 to 500V ac and 15 to 400Hz. The unit is for applications involving inductive loads for power factor conditions.
Entrelec, 1950 Hurd Dr., Irving, TX 75038, FAX (800) 862-5066.

Aluminum profile systems

Aluminum extrusions and assemblies increase efficiency in high-speed conveyors used in automated assembly operations. The units are prepared with back-end setup services that include pinning, drilling, and mounting slots. They are offered in custom configurations and can be fitted with friction-reducing UHMW or "S" wear strips in ready-to-attach assemblies that come in standard lengths of 120 to 240 inches.
Nolu Plastics Inc., 900 C Tryens Rd., Aston, PA 19014.

Stamping simulation software

HyperForm^TM metal-stamping simulation software contains the technology of HyperMesh®, a high-performance finite element pre- and post-processor, and Simex®, the advanced finite-element code for sheet-metal forming. These tools together create HyperForm, the "one-step" finite-element sheet-metal forming code. HyperForm's technology is based on the inverse approach, which begins with a part geometry.
Altair Computing Inc., 1757 Maplelawn Dr., Troy, MI 48084, FAX (810) 614-2411.