Positive Displacement Blowers

Applications

The simplest and most efficient method of pneumatic conveying is a positive pressure system. Positive displacement blowers are critical components of our pneumatic conveying designs, which use air to move dry bulk material ranging from wood chips to coffee grounds. In a positive pressure system, you can install diverter valves to add pickup points for transporting material to different destinations. Extensive testing shows that Kice PD blowers run more efficiently and consume less energy than other blowers available.

Standard features

• Slower speed. While each model is capable of running over 3000 rpm, Kice designed each unit to run significantly slower. Most blowers are limited in this area due to heat. In general, a blower must run at a minimum speed to move enough air to cool itself. However, the Kice PD blower is designed to run cooler and slower than all other blowers. Due to the slower speeds, the bearing life for Kice PD blowers is estimated at 150,000 hours. Noise levels are also greatly reduced.
• Heavy-duty construction. Kice PD blowers use heavy, cast-iron bodies and rotors. The quality of castings is key to blower performance, and Kice is able to strictly monitor casting quality because we own the foundry that pours them. CFM Corporation is a wholly owned subsidiary of Kice Industries and provides all the castings for the entire lineup of Kice PD blowers.
• Sanitary housing. Our unique rotor-tip design reduces slip by 5%-13% when compared to other blowers. Slip is a measure of air that passes through the clearances from the outlet to the inlet, and it is the major cause of heat gain within the blower. Reduced slip comes with lower operating temperatures, which reduce the need for exterior cooling ribs and allow the Kice PD blower to have a perfectly smooth external geometry.
• Oversized shaft. The Kice PD blower comes with an oversized shaft that reduces the chance of damage or breakage from the over-tensioning of belts.
• Oversized extra bearings. Kice PD Blowers have an additional bearing on the outboard side of the drive shaft. The extra bearing reduces the overhung load felt by the drive shaft and the internal bearings. Internal bearings are oversized like everything else on the blower. Expected bearing life is 50%-100% higher than all other blowers.
• Leakproof operation. With its unique oil seals, the Kice PD blower is virtually leakproof, and breathers are not required. It is not uncommon for oil to escape other blowers through their breathers. The state-of-the-art seals used with Kice PD blowers eliminate oil leaks and keep everything contained inside the unit.
• Unmatched efficiency. Extensive testing shows that Kice PD blowers run more efficiently and consume less energy than other blowers available. For detailed test results and statistics, please contact us directly.