DURAMAX FEATURES & BENEFITS

Investment-cast aerospace-grade stainless steel chain links and pins

Benefit: Higher strength and longer life in corrosive/abrasive environments than conventional cast, welded, fabricated, or plastic chains.

  • Wear resistance: Heat-treated PHM stainless provides high hardness and abrasion resistance.
  • Corrosion resistance: Suitable for typical water/wastewater exposure (e.g., chlorides, HS, variable pH, dilute acids/caustics).
  • One-piece cast links: Eliminates weld-related weak points and corrosion at welds.
  • Dimensional consistency: Typical link uniformity within .010" supports alignment and reduces match-marking.
  • Cleaner joints: Tight pin/barrel fit helps limit grit ingress; smooth casting can reduce sprocket wear.
  • Material options: Specialty alloys available for severe-duty service.
  • Technical note: Heat-treated PHM stainless is typically ~425 BHN vs. ~200 BHN for conventional cast steel/304/316 fabricated chain materials.

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Full-length lateral reinforcing rib (3/8" x 3/8")

Benefit: Uniform cross-section strength along the full link length for improved load handling and reduced stress concentrations.

  • Continuous reinforcement: Rib runs from pin bosses to barrel for consistent mass in both axes.
  • Fewer stress risers: Helps reduce premature failures under high or shock loads.
  • Higher pull strength: Designed to increase ultimate strength versus conventional cast/fabricated designs.

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Install-by-Hand

Benefit: Faster, easier assembly—pins can be inserted by hand in tight spaces.

  • No press-fit requirement: Avoids heavy mechanical force during installation.
  • Reduced labor/time: Simplifies assembly compared with locking T-head pin designs.

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20-year design life and 10-year warranty (certified applications)

Benefit: Long service life with reduced maintenance when paired with appropriate sprocket materials.

  • Recommended pairings: High-grade polymeric sprockets (e.g., 70–75 Shore D polyurethane, Nylon-6/6) or heat-treated stainless steel sprockets.
  • Lower lifecycle cost: Reduced replacement frequency and installation labor over long service intervals.
  • Warranty: Standard 10-year warranty when applied/installed/maintained within design parameters on qualified sprockets.

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Recyclable (“Green World”) technology

Benefit: Supports waste reduction and recyclability over the chain life cycle.

  • Recyclable materials: Cast stainless alloys are recyclable and retain value at end of life.
  • Less landfill waste: Long service life reduces replacement frequency versus cast iron systems.
  • Lower operational disruption: Reduced maintenance can lower energy use associated with frequent de-watering and repair cycles.

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