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Showing posts from 2007

Single-Component Epoxy Is Easy To Handle

Polymer System EP11HT is a single-component epoxy resin system from Master Bond for high-temperature bonding applications up to 205C. Master Bond EP11HT is a heat-curing, structural epoxy adhesive featuring high shear strength and easy handling. It is formulated to cure at elevated temperatures, for example 110min at 120C or 75min at 150C.

EP11HT attains tensile shear strengths in excess of 22.75MPa and forms rigid and dimensionally stable bonds. The service temperature range is -50 to +205C. As a one-part system, it does not require mixing prior to use and has an 'unlimited' working life at room temperature.

EP11HT bonds well to a wide variety of substrates including metals, glass, ceramics and most plastics. It has excellent resistance to a wide range of chemicals including acids, bases, oils, salts and many solvents. A nondrip version called EP11HTND-2 is also available. The cured adhesive fully meets the requirements of MIL-MMM-A-132. It is available in pint, quart, gallon…

Monitor Keeps Watch Over Chain Systems

Renold has launched a new version of Smartlink, the innovative chain monitoring technology that can be installed and operated either by maintenance engineers or OEMs. Previous versions of Smartlink have had to be installed and monitored by Renold's own engineers limiting its use to larger projects.

Now Smartlink can be owned and operated by anyone, bringing the benefits of chain monitoring to a much wider range of applications. The new Smartlink devices are supplied already fitted to a section of chain; users simply install the new chain link and Smartlink is ready to go. The new Smarlink units are available for operation on 1, 1.25 and 1.5in pitch chains. They are remotely controlled with a choice of two handheld devices, providing users with two levels of sophistication.

The simpler of the two handheld controllers is no bigger than a keyfob and enables Smartlink to be operated as an overload detector. In this instance Smartlink will provide a warning when chain exceeds a predete…

High-Speed Camera Captures Crisp Images

Dalsa has released the Falcon 1.4M100 1.4 megapixel, high-speed camera from Firstsight Vision. The new camera delivers 100 frames a second at full 1400 x 1024 pixel resolution. Even faster frame rates can be achieved through vertical windowing. The dynamic range of 57dB ensures excellent image quality.

Housed in a compact body, the new camera is ideally suited to applications in electronics manufacturing and semiconductor inspection. These include wire and die bonding, flat panel display inspection and pick and place. The high-speed capabilities also make it suitable for use in industrial metrology and general machine vision applications such as print registration and pharmaceutical inspection. The sensor provides global shuttering, global reset and concurrent integration and readout.

True global shuttering is suited to imaging fast-moving objects. It captures crisp images without smear or distortion by electronically shuttering all pixels simultaneously, even at short exposure times.…

ABB Installation Contactors

ABB Low Voltage Installation Contactors are designed according to international standards (IEC), European standards (EN) and French standards (NF CUTE, DIN-VDE, BS).
We consider 2 types of "Installation Contactors" for different applications : "Normal " Installation and "Day-Night" Installation. They are essentially used in automated building equipment, industry and offices for terminal circuit controlling less than 40 kW AC-1 (incandescent lamps, fluorescent lamps, convectors heating, batteries, regulation systems, ovens, drying systems), small motors controlling less than 15 kW AC-3 (ventilation, air conditioning, pumping, watering, automatic systems) and unbalasting systems in energy management (possibly enslavement from clocks, unballasting relays, telebreakers, thermostats). Mounting Mounting on rail DIN 35 mm (EN 50022) for switchboard.Mounting depth: 58 mmWidth included from 1 to 3 modules (1 module = 17.5 mm)The magnetic circuit design ensures a com…

Flowmeters Monitor Waste Water

The Wells Sanitary District waste water treatment facility has installed four Optiflux electromagnetic flowmeters to monitor the flow of sludge at the treatment plant. The newly refurbished plant on the southern coast of Maine, USA treats up to 7.5 million litres of waste water per day. Engineering consultants redesigned many of the systems and processes at the facility and replaced all the existing electromagnetic flowmeters with Krohne's Optiflux instruments.

The Optiflux incorporates advanced measurement technology, which is highly accurate even when measuring substances with a high bubble or solid content or where there is turbulent flow. The flowmeters installed at Wells Sanitary District are being used to measure sludge recirculation and monitor the amount of effluent that is treated.

In the sludge recirculation area, which forms part of the of the facility's in-line waste activated sludge process, two Optiflux flowmeters are being used to measure the throughput of sludg…

Guide Helps Users Cut Compressed Air Costs

EnergAir has released a free guide to reducing costs in compressed air systems. Challenge Convention in Compressed Air details several ways to improve the energy efficiency of compressed air systems. Aimed at plant managers, site maintenance managers and energy managers the intention is to help address preconceived ideas about compressed air generation (one of the major energy costs to industry) that are currently the cause of huge amounts of energy waste, the alternatives can add literally tens of thousands on the bottom line.

'The industry needs to challenge convention on compressed air in order to realise the savings that can be made', according to Peter Tomlins of EnergAir UK. EnergAir believes that it can provide vital knowledge regarding the purchasing and integration of variable speed compressors, compressor sizing, balancing system pressure, providing visibility of actual energy consumption, and monitoring saving when changes are made, information that would not normal…

Bearings Cut Stress On Ship Structure

Bearings from Trelleborg Bakker improve FPSO manoeuvreability and safety. One of company's most complex projects was the supply of 42 specially designed bearings for the Sea Rose. Constructed of steel and rubber, these compensated for the flexing of the hull, lowering the stresses on the ship's structure.

As floating production storage offloading (FPSO) vessels travel further offshore to extract oil and gas, the demands on them become greater. They need to house more large pieces of machinery such as compressors and pumps. Weighing considerable amounts, these can create significant stresses on the vessel, affecting manoeuvreability and safety.

This effect is intensified by the potential severe weather conditions of deeper waters, with increased forces from waves and wind. Another complication is that the tonnage of the ship constantly changes as oil is pumped in and then offloaded to tankers. Trelleborg Bakker, an operating unit of Trelleborg Engineered Systems, has worked wit…

Addon Expands Servo Controller I/O

QuickSilver Controls has developed a simple 24V breakout that can be attached directly to the SMI port of a SilverDust MG, IG, IGF, IGC or IG8 servomotor controller, providing access to power, communications (RS232/485) and I/O. The breakout also converts the controller's TTL level I/O to five 24V isolated inputs and two 24V open collector outputs.

With a list price of US $75, this breakout is an easy way of adding extra 24V I/O to a SilverDust controller.

Connector Offers Performance/Price Compromise

Hansford Sensors has selected an alternative 12mm connector style, the M12, as offering the best combination of performance and price. The result - today, you can specify either the standard MS series or the M12 Connector on most of their range of vibration sensors. The main advantages of the M12 connector are its smaller size and the fact that its associated cable assemblies have a tighter bend radius.

It is a well accepted and proven connector used across many industries including process control, automation and sensing. They are particularly suitable for use in vibration monitoring equipment, the IP67/68 sealing making them usable in difficult environmental conditions often found in maintenance condition monitoring applications. With its wide use in industrial electronic equipment, the cost-effective connectors and numerous cable assemblies are readily available from electrical distributors worldwide making off the shelf delivery a reality.

Hansford Sensors has applied the connecto…

Gearbox Range Extended

Following last year's distribution agreement with Chiaravalli Trasmissioni, Transdev is now able to offer form-fit equivalents of Motorvario and Bonfiglioli worm gearboxes and geared motors at competitive prices. The CHM (Motorvario) and CHB (Bonfiglioli) series provide industry standard interchangeability covering a comprehensive range of aluminium and cast iron CNC machined housings with RAL 9022 powder coated epoxy protective finish.

With power ratings from 90W to 7.5kW, they are available in a wide choice of foot, flange and face mounting options with selectable motor position, single or double shafts, connection flanges for multiple mounting and a range of accessories including pre-stage gear reducers and torque arms.

The CHM range covers nine models with ratios from 7.5:1 to 100:1 and single or double solid input shafts on 25 to 130mm centre distances.

Nominal torque ratings are up to 14nm for the smallest frame model unit and are up to 650nm for the largest.

The CHB range c…

Brushless DC motors work smoothly and quietly

Servotechnic has released the Lin Engineering NEMA 17 Brushless DC (BLDC) motors. These motors are ideally suited for applications where high speed and high dynamic torque are a must for the user's application. The NEMA 17 BLDC's provide extremely quiet and smooth operation regardless of speed range, although the optimal performance speed range is 300rev/min to 3000rev/min.

These precision motors are also suitable for those who prefer velocity control with an analogue input, do not need holding torque and may be having reliability issues with an existing brushed DC motor.

BLDC's are also a good choice for applications that do not have a lot of power and require a higher efficiency motor.

The motors are available in four stack lengths: 40.894, 60.96, 81.026, and 100.076mm.

Depending upon the stack length, these motors are able to produce up to 0.7485243Nm of peak torque.

Applications for these motors include office equipment, packing machines, laboratory automation, robotic…

Hinges Allow Temporary Positioning

Elesa has taken a new look at the humble hinge and now have a patent pending on the CFP hinge which has three pre-determined settings to allow fixed but temporary positioning of guards, doors, flaps or panels at 80, 120 or 170 degrees.

Each position is held by a simple click spring mechanism, ensuring that one-handed operation is easily achieved, keeping the panel in position for ease of access in installation or maintenance.
The 50mm CFP is manufactured in resistant technopolymer resin featuring front mounting bolt or screw fixing with clip on covers to provide a clean appearance and prevent build up of material in the bolt/screw heads.

Lenze Three-Phase Electric AC Motors

Lenze's Robust Three-Phase Asynchronous Motor with integrated motec frequency inverter can be conveniently matched to the required machine or process parameters. The compact motor, which features a high degree of protection, can be networked via a fieldbus and the digital and analog I/Os used for open-loop or closed-loop control.As a result, it offers a wider range of potential applications. Lenze takes care of the cabling for you by installing the inverter at the Lenze factory. The decentralised concept minimises the need for shielded cables and saves your money. Many applications of Lenze three-phase AC motors require extra terminals in addition to the power connections of the motor, e.g. for the separate fan, thermal contacts, brake, etc.

The universal terminal box of Lenze three-phase AC motors offers a very convenient solution without intricate lamp-wire connectors. The terminal box has been expanded to include a small mounting rail. Up to 18 terminals can be connected to thi…

Swivel Clamp Connectors Come In Metric Sizes

JW Winco has expanded its line of metric aluminium swivel clamp connectors. The clamping bores of the swivel clamp connectors are machined and designed for construction tubings GN990 or DIN2391, DIN2395 and DIN2462, respectively. They are made of aluminium with matte shot-blasted finish or black powder coat finish.

Other surface finishes are available on request with minimum quantities. The hexagon nuts are either zinc plated or in stainless steel to suit the screws. The clamps are available with a variety of round metric bores. They may be ordered with socket cap screws, hex cap screws or adjustable clamping levers.