MechChem Africa July 2019

⎪ Products and industry news ⎪

Everising’s cutting edge of world steel processing technology

A pre-set counter shuts the S Series bandsaws off at a given number of items cut, while an idler-wheel motion- detector also shuts the machine down should the blade stall or break. In addition, the saws detectwhen stock has runout and shut themselves down. InitscolumntypeHSeries bandsaw range, Everising of- fers 11 different models. These range from the H-250HA with a 250 mm cutting capacity to the large H-1100HANC capable of cutting workpieces of 1000 mm x 1100 mm di- mension. The machines at the larger end of the range have progressively more fea- tures, such as the ability to use tungsten-carbide tipped blades. However, all of the H series bandsaws arewell-suited for heavy duty cutting applications as their column type design allows for maximum cutting stability. www.everising.com

In any manufacturing environment, the bandsaw is the productionmanager’s best friend. Fully automated bandsaws can have a significant effect on the productiv- ity of fabrication businesses or steel mer- chants,forexample.Toassist,theEverising Machine Company produces a range of fully automated bandsaws, of both pivot, and column types. Everisinghas four pivot-typebandsaws in its S-250HB–S460HBrange. Theband- saws feature full PLC control of all electri- cal and hydraulic functions. Raising and lowering of the cutting head is controlled by a single lifting cylinderwhichmakes for quick, efficient operation.Workpieces are secured during cutting by an hydraulically controlled dual-vice clamping system. Blade tension, a factor that can extend the life of a blade, on Everising’s S ma- chines is controlled hydraulically for op- timal blade life. Blade speed is controlled by an inverter giving infinitely variable speeds of between20and100m/min. The machines also feature automatic shuttle- type feeding systems. Vacuum and gas management expert Leybold offers a wide range of highly innovative, already proven vacuum solu- tions for vacuum systems, which are an elementary component in heat treatment plants and metallurgical processes. This against the backdrop of an in- crease in the need for energy-efficient, sustainable processes owing to high energy prices, increasing global warming, and scarce resources. Pump systems consisting of dry-com- pressing screw vacuum pumps of the DRYVACtype combinedwithRUVACWH Roots pumps have proven themselves in use on secondary metallurgical VD, VOD or RH degassers. By using these standard pumps, even the highest demands on pumping speed can bemetwith reliability at competitive prices. The new compact DRYVAC models DV 200 & DV 300 are designed for mod- ern, intelligent production. They offer

Everising’s H series bandsaws are well- suited to heavy duty cutting applications as their column-type design allows for maximum cutting stability.

Vacuum solutions for metallurgy Leybold supplies maximum energy ef- ficiency, durability and future-proof network integration. Owing to optimised rotor geometryand innova- tivemotor designwith efficiency class IE3,

these pump types minimise power consumption and CO 2 emissions. The bottom line is that DRYVAC pumps are cheaper and more environmentally friendly than comparable models. In order to achieve high vacuum in VIM or VAR installations, Leybold offers themostmodern oil booster pumps avail- able on the market which, in combination with dry compressing DRYVAC screw pumps and RUVAC Roots pumps, ensure maximum system availability at lowest operating costs. Leybold has an even larger product

DRYVAC DV 200 and DV 300 – innovative dry pumps.

portfolio for use invacuumheat treatment furnaces. Oil-sealed SOGEVAC rotary vane pumps have proven themselves in clean processes such as hardening or tempering.Formoredemandingprocesses such as soldering, sintering or carburising, dry-compressing screw pumps are avail- able – depending on size and process, pumps of the DRYVAC, SCREWLINE or VARODRY series can be used. www.leybold.com

July 2019 • MechChem Africa ¦ 31