Mega-CHAIN Cast Stainless Steel Chain

In a chain-and-flight collector, a grit collector, a headworks screen, a scum removal system, or a flocculator, the chain is often one of the highest-wear components in the system. Conventional cast-iron and fabricated chains stretch, wear, and corrode. Tension adjustments and full replacements mean taking the basin out of service, again and again, over the life of the plant.

Mega-CHAIN is JMS’s cast stainless steel chain, made in the USA and built on DuraMax® investment-cast technology. JMS is the exclusive provider of DuraMax products in the water and wastewater market. Mega-CHAIN combines DuraMax cast stainless technology with JMS application engineering, equipment integration and aftermarket support. Made in the USA with domestic sourcing and documentation to support BABA, AIS, Buy American, and other domestic sourcing requirements.

Each link is investment cast from aerospace-grade, precipitation-hardening stainless steel, roughly twice as hard as conventional cast steel chain, with a full-length reinforcing rib that carries higher pull and shock loads without the stress risers that crack cast and fabricated links. An install-by-hand, non-rotating pin lets one person assemble the chain without pressing, and precise cast tolerances help reduce grit entry into the joint so wear stays low.

When paired with properly selected sprockets, Mega-CHAIN is engineered for a 20-year design life in continuous-duty water and wastewater service. Its long-term durability can help reduce maintenance and replacement frequency across flocculators, scum removal systems, chain-and-flight collectors, grit collectors, elevators, and headworks screens. Mega-CHAIN is backed by a warranty of up to 10 years on qualified applications, five years full and five pro-rated, conditional on documented annual inspection, properly selected sprockets, and correct tension and alignment.

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The CS720 link and pin, from the casting model. Drag to rotate, scroll to zoom, and tap a marker to see what each feature does.

Mega-CHAIN

CS720 cast stainless steel chain

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Full-length reinforcing rib Carries higher pull and shock loads without the stress risers that crack cast and fabricated links.
Install-by-hand, non-rotating pin Lets one person assemble the chain without pressing.
Precise cast tolerances Help reduce grit entry into the joint, so wear stays low.
Investment cast stainless Aerospace-grade, precipitation-hardening stainless steel at 375 to 415 BHN, roughly twice as hard as conventional cast steel chain.
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Mega-CHAIN installed on a chain-and-flight collector, running on a sprocket with flights attached

Mega-CHAIN in service on a chain-and-flight collector.

Specifications

20 yr
Design life
Continuous duty
10 yr
Warranty
Qualified applications
375–415 BHN
Hardness
~2× conventional cast steel
Ultimate strength
CS72078,000 lb
CS71548,000 lb
H8253,000 lb
H7840,000 lb
Max working load
CS7207,800 lb
CS7154,000 lb
H826,200 lb
H785,000 lb
17-4 / 15-5 PH
Material
Precipitation-hardening stainless
Made in the USA
Origin
Supports BABA, AIS, Buy American and other domestic sourcing requirements
Standards
Collector chain, 700-classASME B29.21M
Drive chain H82ASME B29.400
Drive chain H78ASME B29.400
Meets or exceeds the applicable standard for each chain type.

Key features

  • Investment-cast, aerospace-grade stainless steel links and pins
  • 20-year design life; warranty up to 10 years on qualified applications, conditions apply
  • Roughly twice the hardness of conventional cast steel chain
  • Full-length reinforcing rib for greater pull and shock-load strength
  • Install-by-hand, non-rotating chain pin (one person, no press)
  • Designed to run on properly selected sprockets with low wear
  • Precise cast tolerances that help reduce grit entry into the joint
  • High-hardness stainless construction for improved wear and abrasion resistance
  • Made in the USA, supporting BABA, AIS, Buy American and other domestic sourcing requirements
  • Fully recyclable stainless steel

Built for the long run

Field wear studies on installed chain support the 20-year design life.

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Mega-CHAIN Cast Stainless Steel Chain

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Mega-CHAIN is JMS’s brand for cast stainless steel chain built on DuraMax® investment-cast technology. DuraMax® is a registered trademark of its respective owner. The warranty runs up to 10 years (5 years full plus 5 years pro-rated) on qualified applications and is conditional on documented annual inspection, properly selected sprockets, correct tension and alignment, and operation within design ratings; see the full warranty for coverage and limitations. Specifications are subject to change.