WATER EATER SLASHES COOLANT DISPOSAL COSTS ZERO BACKLASH BRUSHLESS DC MOTOR New levels of torque and position capability are now possible with the development of adaptive hardware for maxon low profile brushless DC motors and harmonic planetary gearheads. The maxon brushless DC 70W 24V motor, 2048 counts per turn internally integrated encoder and the new harmonic light weight low profile zero backlash gearhead are now available. The gearmotor assembly increases the torque and reduces the size of previous solutions using planetary gearbox technology. The output capability is 19Nm repeated and 31Nm intermittently, which is groundbreaking for a combination just 55mm diameter and 59mm long for all three components. Having an internal encoder and a zero backlash gear makes the unit ideal for robotic joint and positioning applications in industrial automation, process control and also for precision laboratory and scientific equipment. www.maxonmotor.com.au www.engineeringnews.co.nz 77 The Euchner transponder coded safety switch CTP with guard locking available from Treotham New Zealand Ltd has been modified and approved for use in potentially explosive atmospheres according to the ATEX directive. The safety switch CTP EX can be used in gas (code 2) and dust (code 22) environment applications. The CTP EX has been designed to meet the high requirements for usage in potentially explosive atmospheres and the requirements of the ATEX directive. For example, measures have been taken to prevent the formation of sparks and an additional protective enclosure is provided. The safety switch has a locking force of 2600N and it can have up to 20 devices connected in the series. In addition to compliance for use in Atex zone 2 and zone 22 environments, the CTP EX meets the requirements of the standards EN ISO 13849-1 as well as EN ISO 14119 for a type 2 switch with a high coding level. www.treotham.co.nz For smaller manufacturing companies the cost and hassle of disposing coolant is an expensive exercise. Unlike larger companies they frequently lack the space, the capital or the technical personnel to utilise the exotic recycling or treatment capabilities. However, a piece of equipment known as the Water Eater provides an innovative and effective solution to the issue. Designed on the principal that only a tiny proportion of the waste product is actual coolant, the Water Eater uses evaporation to remove the water component from the coolant thereby drastically reducing the amount of waste product that needs to be disposed of. “Typically used coolants are normally 95% water, meaning that all you are left with is a mere 3 to 5% of the original volume. Efficient, environmentally friendly and compact the Water Eater is an ideal solution for smaller manufacturing companies,” says Dimac managing director, Paul Fowler. Made by EMC in Santa Fe Springs California, the unit is available in both gas and electric heated models with evaporation rates ranging from 19 to 208 litres per hour. An optional Auto Fill system automates the process and allows for 24 hour operation. www.dimac.com.au SWITCHING ON WITH CTP EX
EN-May17-eMag
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