Turbocharger turbine shaft wheel impeller

CD Centrifugal Impeller   Turbocharger turbine shaft wheel impeller   If you’ve ever had to explain to the plant manager why a six-figure genset is down because of a cracked turbine shaft wheel, you already know this is not just another commodity part. The turbocharger turbine shaft wheel and compressor impeller live at the sharp […]

How to machine wicked impeller using a 5-axis CNC lathe?

CD Centrifugal Impeller   How to machine wicked impeller using a 5-axis CNC lathe?   The phone rang at 9:02 on a Tuesday. On the line was a procurement manager I’d known for years — let’s call him Dan. He’d been tasked with sourcing a new supplier for a “wicked impeller,” a semi-open centrifugal impeller […]

Wicked wheel 7.3

CD Centrifugal Impeller Wicked wheel 7.3 Internal Service Directive — Pull Up a Stool, This One’s for the Parts Desk and the Shop Floor   Last Tuesday, a ’99 F-350 dually hobbled into bay three sounding like it was trying to inhale a goose. The owner, a hotshot driver who puts 200,000 miles a year […]

How to forge centrifugal impellers specifically for air compressors?

CD Centrifugal Impeller   How to forge centrifugal impellers specifically for air compressors?   If you're sourcing or maintaining centrifugal impellers for high-speed air compressors, you’ve probably spent plenty of time poring over material certs, vibration spectra, or price sheets. But here’s a question most people never ask: How exactly is that impeller forged, and why […]

Impeller in compressor

CD Centrifugal Impeller   Impeller in compressor   If you have ever been handed a purchase requisition for a compressor impeller and told to “just match the part number and get the best price,” you already know that approach can backfire—badly. Whether you are on the procurement side managing RFQs and delivery schedules, or inside […]

Deeply scalloped radial turbine rotors

CD Centrifugal Impeller   Deeply scalloped radial turbine rotors   A few summers back, a trawler repair dock in the Gulf of Mexico called our shop in a flat panic. They’d swapped in a new set of aftermarket radial turbine rotors on a pair of medium-speed turbochargers, and within 60 hours one unit threw a […]

Centrifugal compressor liquid carryover impeller damage

CD Centrifugal Impeller   Centrifugal compressor liquid carryover impeller damage   The phone call usually starts the same way. A plant’s main air compressor trips on high vibration, and the maintenance crew finds the first-stage impeller looking more like a piece of driftwood than a precision rotating component. The leading edges are scalloped, the inducer […]

What is compressor exducer? The difference between compressor inducer and compressor exducer

CD Centrifugal Impeller   What Is Compressor Exducer? The Difference Between Compressor Inducer and Compressor Exducer   If you’ve ever held a high-speed centrifugal air compressor impeller in your hands—maybe after a bearing failure or a particularly nasty surge event—you’ve probably noticed that it’s not just a simple fan wheel. One side seems to twist […]