Modern Mining April 2015

PRODUCT News

Locally designed luminaire offers optimal performance security lighting applications, deliver- ing instant white light with a high colour rendering index and 100 % light output. The slim and unique design optimises the thermal operating environment around the LEDs, enabling a long useful lifetime and low maintenance. The BEKA LEDnova is designed to accommodate various mounting options, as well as hazardous (Zone 2 & 21/22) and emergency lighting applications. The locally designed and manufactured BEKA LEDnova luminaire.

The intelligent design of the BEKA LEDnova makes LED luminaires particu- larly suitable for the challenging African environments. Electronic temperature monitoring prevents overheating of the LEDs and the power supply within the LED compartment (ThermiX®). To maximise the reliability of the LEDs, the photometric engine and con- trol gear compartment are completely sealed to IP 66. This ensures that the photometric performance is maintained over time (LEDSafe). The BEKA LEDnova offers flexible combinations of LED arrays, combined with various photometric distri- butions (LensoFlex2®) and dimming control options, to further maximise energy sav- ings and reduce maintenance costs. Phillip Vermeulen, Beka Schréder, tel (+27 11) 238-0016, e-mail: p.vermeulen@beka-schreder.co.za heat dissipation and product longevity. This series is designed for applications that include low speed shafts of machin- ery driven by electric motors – even in harsh environments – and is available with customisable options to meet the require- ments of restricted applications. These compact couplings allow for compensating axial, radial and angular misalignments and also protect the drivetrain from shock loads. Flexible Flexomax GSND couplings have design features that eliminate the need for lubrication and allow radial removal of elements without moving machinery. Furthermore, the design incorporates air circulation slits to allow for a cooler ele- ment and thus a longer life of the product. Vulkan’s wide range of highly engi- neered fixed speed and variable speed fluid couplings has been designed for reli- able functionality and is optimised around specific application requirements. For more demanding applications, Vulkan shaft-to-shaft solenoid activated PSV–SP variable speed drain type fluid couplings are recommended. These cou- plings allow for larger heat dissipation in aggressive climate conditions. Vulkan industrial braking systems, now available from BMG, encompass rail clamps, electromagnetic brakes and indus- trial emergency brakes. Carlo Beukes, BMG’s Power Transmission Division, tel (+27 31) 576-6200

The BEKA LEDnova is claimed to set a new benchmark in lighting for industrial applications. This locally designed and manufactured luminaire offers optimal photometric performance and high reli- ability to reduce energy consumption and maintenance in all types of light- ing applications. It is designed to replace conventional light sources of up to 100 W HPS and MH lamps whilst achieving great energy savings and a long useful lifetime even in environments with high vibration. This luminaire is said to be ideal for BMG has been appointed distributor in Southern Africa for the Vulkan Drive Tech products range, which includes couplings and braking systems. “With the introduction of Vulkan’s fluid and engineered flexible couplings, BMG’s coupling offering is now complete,” says Carlo Beukes, BMG’s Power Transmission Product Manager. “BMG, which now car- ries a vast stockholding of standard Vulkan couplings, also has access to the complete range of Vulkan braking systems. “With Vulkan’s compact fluid coupling

The unit has been designed to operate LED light sources of up to 80W in an ambi- ent temperature environment of at least 35 deg C, without reducing the LED life- time of 15 years, at a lumen depreciation of not more than 20 % (L80). The correlated colour temperature (CCT) of the LEDs is neutral white (4 000 K), also available with a warm white CCT.

BMG appointed to distributeVulkan range design, it is possible to replace existing applications, without the need for any modifications to the existing layout, there- fore ensuring ease of replacement and reduced project costs.”

communication protocol used is Profinet. At Finsch, where capacity is currently being expanded., JB Switchgear has sup- plied five Eagle series MCCs which include over 70 DOL starters between 0,37 kW and 200 kW, as well as a variety of variable speed drives (VSDs) and soft starters ranging between 30 kW and 220 kW. Incomers are rated at 1 600 A. Here also, the client chose Profinet as the communication protocol. The Eagle series of assemblies carries type test certification for compliance with IEC 61439/SANS 1973-1 and IEC 61641 standards. Johan Basson, JB Switchgear Solutions, tel (+27 11) 027-5804 Important components for BMG in the Vulkan range are Flexomax GBN mainte- nance-free couplings, with a maximum torque of 1 288 kNM and shaft diameters up to 600 mm. These torsional flexible cou- plings are equippedwith specially designed elastic elements which work in compres- sion, allowing for maximum torque transfer,

MCCs supplied to two Petra diamond mines Leading panelbuilder JB Switchgear Solutions was recently awarded two mul- timillion rand contracts by Petra Diamonds for the design, manufacture and supply of motor control centres (MCCs) for Cullinan and Finsch mines respectively.

At Cullinan, where the C-Cut Phase 1 project is underway, JB Switchgear’s scope of work included ten Eagle series MCCs containing over two hundred DOL start- ers ranging between 10 kW and 200 kW. In addition, a number of variable speed drives (VSDs) between 18,5 kW and 160 kW were installed, as well as soft starters rang- ing from 160 kW to 200 kW. Incomers up to 2 500 A were provided and the

52  MODERN MINING  April 2015