81XHKD Chain

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Drives® 81XHKD chain is engineered to maximize performance on dryer or wallboard systems. This product has several key features that make 81XHKD ideal for use on kiln dryer equipment, such as:

  • Increased transverse clearance between sidebars prevents stiff joints under elevated temperatures.
  • Nominal lateral plate clearance provides tolerance for heat expansion and contraction, accommodating for misalignment of the hangers.
  • Delivers non-binding chain operations in higher temperature or longer cycle board systems.
  • Includes through-hardened pins manufactured from high-quality alloy steel.
  • Built with solid rollers for smooth engagement with sprockets.
  • Features heavy inner link plate for applications with higher working loads.
  • Supplied in suitable lengths for handling.

If 81XHKD isn’t what you’re looking for, 81XKD and 3000KD are also available for kiln dryer applications. 81X, 81XH, 81XHH are part of the 81X portfolio as well.

Features & Benefits

  • Materials

    Starting with the best materials leads to higher strength and better wear life. Our manufacturing process begins with raw materials that meet exacting standards for metal grade, mechanical properties, carbon and alloy content to ensure minimization of impurities that impact tensile and fatigue strength.

  • Fabrication

    Drives designs each component to exacting dimensional standards for optimal performance. Through-hardened pins, solid rollers and heavy inner link plates are used to create Drives® 81XHKD chain. CHP pins can be added as an upgrade to decrease wear between the pin and bushing, reducing elongation and increasing wear life.

  • Heat Treatment

    Strict control of atmosphere, time and temperature optimize the material properties – increasing strength, durability and wear resistance.

  • Shot Peening

    We shot peen our roller and link plates for greater fatigue strength. This adds a layer of compressive stress that helps components resist failure when exposed to repeated high loads. In addition, we press steel balls through the pitch holes in a process called ballizing – effectively optimizing bearing contact between pins, bushings and linkplates to increase chain fatigue resistance and pin retention.

  • Lubrication

    We use a proprietary lubrication process on all lubricated chains for enhanced corrosion protection and extended wear life.

  • Preloading

    Following assembly, all chains are preloaded to firmly seat the pins and bushings. This is to reduce initial run-in and extend the wear life of the chain.



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Forestry & Paper

General Industry

Choosing the Chain for Your Application

Use our Chain Configurator or Chain Engineer Mobile Web App for assistance selecting the right chain for your application. If you have a challenging demand beyond the scope of a standard Drives® chain, we would be excited to partner with you to provide custom-manufactured solutions to meet your specific needs.

Chain Configurator

Build and download a custom chain within a full 3D window with this state-of-the-art web app.

Chain Engineer

Explore our suite of mobile-friendly tools to help in the maintenance and selection of chain driven applications.