Engineering Design & Systems International

Electricity metering solutions for the world of tomorrow

current transformers from VAC

VAC current transformers for automatic electricity meters & smart meters are shielded against tampering from an external magnetic field. Their compact design exhibits High Linearity Performance with excellent DC tolerance & low load characteristics.

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FM Broadcast transmitters & translators from 30 watt to 10 kW

Crown FM Transmitters Crown Broadcast have the most versatile, cost effective, FM transmitters available today.

Whatever your requirement:

full featured commercial RF transmitter power levels from 30 watts - 10 kW
optional audio processor and stereo generator built-in
backup transmitter for commercial broadcast (DC powered)
nearcast devices for stadiums and other venues
translator, repeater, booster to extend broadcast coverage
satellator with FSK IDer to extend data coverage
high reliability weather radio transmitters with dual redundancy

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RF & MICROWAVE AMPLIFIER SOLUTIONS.

From 1 MHz to 40 GHz with Power Levels from 0.1 milliwatt to 2.5 Kilowatt

If you require an RF amplifier chances are we have it or can get it. Our supplier has been in the RF Microwave amplifier business since 1976. They offer an extensive range of both commercial and military RF & microwave amplifiers. If you cannot find the amplifier that you are looking for on our web site, please call or email us. Pickup a brochure here.

Class A Linear Amplifiers 1-2000 MHz 1 watt to 50 watts

RF Amplfier These amplifiers are suitable for ultra broadband and band specific high power linear applications. This amplifier utilises Silicon MOSFET power devices that provide high gain, wide dynamic range, low distortions, and good linearity. Exceptional performance, long term reliability and high efficiency are achieved by employing advanced broadband RF matching networks and combining techniques, EMI/RFI filters, machined housings and qualified components.

Low Noise, ultrawide band, RF, microwave & broadband bipolar amplifiers 0.01MHz to 20GHz

More than 80 different specifications available to suit your exact requirements. Choose from wide band, ultra wide band, RF or microwave all with very low noise. Frequency range covers everything from 0.01 MHz to 20 GHz. Ideal for fibre optic & telecomm applications.

Travelling Wave Tube Microwave Amplifiers

Millimetre TWT microwave amplifiers 18.0 to 40 GHz - 5-150 watts CW 1 MHz to 18 GHz. TWT microwave amplifiers high power 200 - 500 watt - low power to 60 watts. These TWT microwave amplifiers are built to Military Specifications & feature:

Digital Display Monitors: Collector Current, Collector Voltage, Forward RF Power, Reflected RF Power, Filament Hours, Beam Hours.
Status Indictors: Power On, Standby, RF On/Operate.
Fault indicators: Helix Over current, VSWR Overload, Thermal Overload, Air Flow, Collector Over Current.
Safety: Designed To meet the safety requirements of IEC-348 and Underwriters Laboratory of broadband standards.

RF Amplifiers for Cellular Phone Networks, Wi-LAN & Scientific Research - RF & Microwave Accessories, including antennas, attenuators, cables & adaptors.

VAC Magnetic Systems, Cores & Inductive components.

VACUUMSCHMELZE GmbH & Co. is a leading global manufacturer of advanced magnetic materials and related products. In 1914, the first vacuum melting furnace laid the foundation for today's VACUUMSCHMELZE. In 1923, melting alloys in a vacuum went into production on an industrial scale. VAC Cores

VAC's expertise with magnetic materials has led to a range of advanced products including current transformers for use in electronic metering systems that have integrated shielding against external magnetic forces. This means that the entire meter no longer needs shielding. This makes for a more compact, accurate and cost effective meter. To find out more about VACUUMSCHMELZE products select here.

Willi Wader Blast Furnace Tap Hole Drilling Tools

"The costs of opening a tap hole with Wader patented tools will be significantly less than with drilling tools of other suppliers." That's the claim of Willi Wader and when you use these tap hole drilling tools we're sure you'll agree. "Copy Cat" tools of poor quality will undoubtedly result in poor performance. Willi Wader Blast Furnace Tap Hole Drilling Tools

The range of drilling tools includes:

Drill Rods with rope threads, wedge connections & different slots upon request.
Hammer shafts.
Range of rod adaptors.
Various drill bits including, turbo button, rapid & razor, tungsten, milling cutters & high speed.
Soaking bars & water mist adaptors.
Clay gun nozzles.

As it is very difficult to project the adequacy of a particular type of drill bit for each individual blast furnace we recommend that you conduct extensive trials with the range before you decide on tools for your operation.

Grate Bars for sinter plants Willi Wader also produce grate bars for sintering, pellet & incinerator plants together with a range of conveyor chains and parts to suit the steel industry, coke oven plants, coal-fired generator plants & incinerator plants.

COMET AG - Vacuum Capacitors

COMET capacitors are used for many unique applications world-wide, e.g.

Plasma deposition and etching equipment for semiconductor, flat panel display (LCD) and data storage (HDD, DVD) manufacturing
Antenna tuning units or couplers in avionics and mobile equipment
High frequency industrial generators for drying, sealing etc.
Plasma fusion and high energy particle accelerators
Nuclear magnetic resonance imaging systems

The design, construction and processing of COMET vacuum capacitors combined with decades of experience in precision manufacturing assure outstanding quality standards. The unique modular design of the capacitors allows a high degree of flexibility in production and guarantees delivery of special types on very short notice.
The superior performance and reliability of the products have been proven by hundreds of thousands of units in operation. Vacuum capacitors are components that give excellent long lasting service, provided their specifications are carefully respected.

Today, COMET manufactures more than 500 basic types of vacuum capacitors:

Capacitance ranges from 3 to 6,600 pF
Current ratings up to 1,000 Amperes
Peak test voltages up to 90,000 Volts

Weinhold Hose & Pipe Fitting

Founded in 1953, Weinhold develops fittings for hoses and pipes that do not require any tools or hose bindings for their attachment. Weinhold Hose Attachment
Gas, Compressed air, water & steam are all serviced by Weinhold fittings. Clients include mining, petrochemical and construction industries.

Product Features
The WE-ER® hose fittings, once mounted, will not move again. The entire unit is firm on the pipe system or device, presenting a significant safety factor in comparison to other coupling systems: Even if the connection tears or comes undone suddenly, no injuries will be caused by any iron parts stuck on the hoses.
The WE-ER® connection system deliberately does without front-end seals which, subjected to friction, frequently cause leaks. In case of the WE-ER® hose fittings the hose itself functions as a seal; clamped correctly, tight between the inner parts as well as upper and lower parts of the coupling, a leak-proof fit is guaranteed. The spring tension has been calculated to prevent the coupling from re-opening, once the tension lever has been engaged.
Easy and quick assembly and operation of the WE-ER® hose fittings, perfect leak-proof connections that avoid costly losses of compressed air leads to significant savings in time, labour and cost.

For a better understanding of the Weinhold product range and to see why it should be used in your organisation please watch the movie below or ask us to send you a copy:

Weinhold Movie - Windows WMV Format (10MB)

Send Me A Copy of the Movie or make a Weinhold enquiry

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Kissling Relays & Switches

Kissling Cut Off Switch For over 50 years, Kissling have been manufacturing robust switches & relays for the transportation industry including automotive, passenger, trucking & military vehicles. Kissling products are also widely used in aerospace, aircraft and watercraft. They have an extensive range of switches & low voltage relays suited to varied applications. All Kissling products carry a 2 year warranty & are sealed to IP67 standards.