Fans and Fan Liners

Fan Blades with Conforma Clad offer…

  • Superior Weight-to-Erosion Resistance Ratio
    It would take an inch of chrome carbide weld overlay or three inches of plain carbon steel to equal the erosion resistance provided by 1/16" (1.5mm) of Kennametal's Conforma Clad cladding.
  • Resists Chipping and Spalling
    Improve fan efficiency, reduce costly downtime and avoid catastrophic blade detachment.
  • Protect Your Entire Fan
    Protect the leading and trailing edges, centerplate weldment areas and fan inlet hubs.

Superior Bolt Cap Design

Conforma Clad bolt caps do not "pop off" in operation, ensuring consistent wear protection across the full surface of the fan blade. Flush mounting of bolt head cap with fan surface means even wear patterns.

Proven Results

A Northeastern coal-fired power plant experienced induced draft fan and scrubber booster failures as a result of hot fly ash erosion. The plant protected these components with chrome carbide weld overlay liners, with failures occurring every six to nine months. Due to the unpredictable wear characteristics of chrome carbide weld overlays, liner failure represented an extreme risk during the peak summer production season. 

The failure of a 640MW unit occurred during the late summer months, causing an unscheduled outage that lasted 96 hours. In order to meet its committed power supply, the facility was forced to wheel 61GW-hour at a cost of $60/MW-hour. This unplanned outage cost the facility around $3.7M in lost generation.

By replacing chrome carbide weld overlay liners with Conforma Clad blade and wheel hub liners, the plant extended run times of their hot gas fans from 9 months to 36 months, without the fear of unplanned failures between scheduled outages.




See the difference Between Conforma Clad and Other Wear Protection Methods Below

blade protection

Fly Ash Erosion Test and Resistance

Kennametal's Conforma Clad tungsten carbide cladding provides unmatched resistance against abrasion, impact, erosion and corrosion. Other types of protection may guard against one form of wear, but only Conforma Clad protects fan components from multiple modes of wear. Our cladding's high metallurgical bond strength, combined with its ability to withstand continuous operation at elevated temperatures, makes Conforma Clad the premium wear protection for fan applications. 

EPRI conducted laboratory testing on power boiler fan blades to determine the best erosion protection from highvelocity bituminous coal fly ash. Testing was conducted at a 40 degree impingement angle with a particle velocity of 550 ft/sec for 30 minutes. Conforma Clad WC 210 cladding provided top wear protection while retaining critical component geometries.

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