African Fusion November 2018

be adjusted based on a one-dial-control principle. Step 1 is to select the mate- rial, gas and process for the weld. Then the correct current and corresponding voltage ratio is set for the weld. Once programmed, the machine can be ad- justed up or down for thicker or thinner materials, with the voltage and current automatically adjusting in the ratio established,” Naude explains. “This helps to address the skill short- age plaguing the welding industry, as many of our welders are struggling to set machine parameters to weld opti- mally. Synergic control makes this very easy, taking all of the frustration and uncertainty out of setting up thewelding machine.” This is further aided by the memory saving functions that allows between 50 and 100 weld settings to be saved, dependingon themodel,”he says. At the high-end of the TIG range is the ATIG400, a DC-TIG system that offers all of the modern features associated with digital technology. For aluminium and/or pulse TIG, the new AC/DC315 ST inverter offers square, triangular, or sine wave current outputs, ac balance offset, 50 memory settings and more. Inkeepingwith its rental focus,White-

irrespective of their chosen equipment brand,” says Naude. Whitehead adds: “We recently won a tender for 50 of our ARC 201PFCs to replace those originally sold by an in- ternational OEM that had all failed the validation test. Because of our quality and design ethos – based on South Af- rican conditions – our equipment met the validation requirements both dur- ing the tests in-house and when tested on-site,” he says. The new range Two newpulsedMIG options are includ- ed in the new range: the AMIG500pm at the top of the range and the PULSE300 COMPACT, which offers better portabil- ity and flexibility for site work. “Both of these machines offer pulse and double pulse welding options, which enable open arc welding at lower current levels for thinner materials or out-of-position welding; and the double pulse option, which enables awelder to set a comfort- able pulse frequency tomatch his or her hand speed,” Naude explains. Also neware the 300 A and 500 A syn- ergicMIGmachines. “Synergic functions enable all of the welding parameters to

EMA visitors were invited to try out Renttech’s new range of UNIarc welding equipment. heads adds that, as with all Renttech offerings, these advanced machines are sold“ready toweld”,withall of theneces- sary torch consumables andaccessories. “UNIarc has a substantial fleet of rental machines that have been main- taining sites across the country for years. Rental is a gruelling testing ground for our equipment and we are happy to include the likes of our newAMIG500pm as well as the Synergic 500 in this fleet. “This gives customers access to latest technologies to realise the technical and economic benefits of the newprocesses for short or medium-term projects where the scope or conditions of a proj- ect donot justify buying the equipment,” Whitehead concludes.

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November 2018

AFRICAN FUSION