Profile: Hultgren & Strutzel, Inc. supplies vacuum & blower systems. Our blower systems are used for pneumatic conveying, chemical processing, gas moving, vacuum boosters or exhausting, food processing, waste treatment aeration, elevated pressures and complete package systems. Vacuum boosters provide high-capacity gas volumes at high vacuums (50 torr to micron range) and may be used in conjunction with all types of vacuum pumps. All units are dynamically balanced and leak tested. Dry screw vacuum pumps operate without oil or water in the pumping chamber. These pumps eliminate the problem of waste disposal, process contamination and environmental pollution. Rotary vane vacuum pumps are used in relatively clean & dry applications such as hospitals, labs, and gas cylinder evacuation. It is available in single and two stage design.