By Plant Engineering Staff
Variable-speed air compressor
The Quantima variable-speed centrifugal air compressor features oil-free operation and magnetic bearings. The motor and direct-drive compression assembly incorporate the magnetic bearings to provide control both axially and radially of the rotor shaft. Its patented Q-drive compression and motor assembly has just one moving part; it operates with the rotor spinning in a magnetic field at up to 60,000 rpm. Other features include a high-frequency inverter variable-speed drive, high-efficiency inlet air filtration and an acoustic canopy for low noise levels.
CompAir USA : www.compair.com
Compressed air nozzle
The 1construction makes it suitable for industrial applications, and its 2-inch hex body facilitates installation with a standard wrench or socket. Applications include ejection of heavy parts and drying, among others.
Exair Corp. : www.exair.com
The DRYCAP dewpoint transmitter DMT152 measures dewpoint in OEM applications down to -112 F. Suitable for use in harsh environments, the compact unit features a polymer sensing technology and comes with a NIST-traceable calibration certificate. Its AUTO-CALIBRATION feature provides dry end accuracy and durability. Applications include air and plastics dryers, dry chambers, pure gases and high-voltage circuit breakers.
Vaisala Inc. : www.vaisala.com
Rotary-screw air compressors
The 7500 S-energy Series of lubricated rotary-screw air compressors features energy efficiency system heat recovery. Available in both constant- and variable-speed drive models, the 100-hp compressors offer capacities of 369 to 493 acfm and pressures ranging from 100 to 175 psig. Their air-end design includes a low-restriction air inlet valve, a low-pressure drop air-fluid separation system and a high-efficiency fan. The EES recovers the heat of compression and converts it to recirculating air for comfort.
Sullair Corp. : www.sullair.com
The GA range of oil-injected air compressors is equipped with compression elements based on asymmetric rotor profiles to reduce volumetric losses. Radial fans with variable-speed drive regulation, high-efficiency motors and no-loss drains are included in the design to reduce energy consumption. Two elements facilitate air quality: an oil removal system that provides minimum residual oil content in outlet air, and refrigerant dryers, which are available in both integrated and standalone versions.
Atlas Copco : www.atlascopco.com
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2012 Salary Survey
In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.
Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.