About MSI Mining

Providing industry leading manufacturing, design, and engineering support.

Madden Steel Inc has been providing high quality manufacturing, professional design, and engineering support since establishing in 1978. We operate on a five acre complex located in Brighton, Colorado and approach 80,000 man hours of fabrication per year. We strive to maintain and exceed AMSE, AWS, DOT, ANSI, MSHA, and OSHA standards for quality and safety.

We have designed and built thousands of projects for the mining and aggregate industries. All expertise is in-house, so we can help you custom design a gold recovery plant to fit your exacting needs by leveraging our industry leading computer modeling and engineering support.

We have taken the knowledge and technology from our equipment manufacturing of large aggregate and mining producing plants and formed strategic partnerships with leading gold recovery companies to develop some of the finest recovery units on the market.

We truly value our relationships with recovery companies. We strive to work side-by-side in sharing technology and experience. One of our most valued partnerships is with Placer Recoveries Inc, who has over two decades of recovery experience, with over 40 recovery sites, which range from 50 tons per hour to 1,500 tons per hour.

All equipment is tested and operated before sending to customers. We also offer complementary training at our USA facility with the purchase of any mining equipment.

Other Mining Equipment Samples

A small sample of our recent other custom designed equipment.

A complete plant located in Northern Colorado.

A complete plant located in Northern Colorado

Twin 8 x 20 screens with triple de-watering screens

Twin 8 x 20 screens with triple de-watering screens.


6 x 20 screen with log washer.

6 x 20 screen with log washer

Nordberg 300 cone crusher chassis

Nordberg 300 cone crusher chassis.


Nordberg 105 portable jaw crusher with 20 foot vibratory grizzly feeder.

Nordberg 105 portable jaw crusher with 20 foot vibratory grizzly feeder

VSI with feed hopper

VSI with feed hopper.


Nordberg 400 portable cone crusher chassis.

Nordberg 400 portable cone crusher chassis

25 foot hopper with 24 foot vibratory grizzly feeder in the final phase of construction

25 foot hopper with 24 foot vibratory grizzly feeder in the final phase of construction.


Twin 500 ton feed hoppers with a 24 foot vibrating grizzly feeder.

Twin 500 ton feed hoppers with a 24 foot vibrating grizzly feeder

Twin 7 x 20 screens

Twin 7 x 20 screens.


Twin 7 x 20 screen platform under construction.

Twin 7 x 20 screen platform under construction

Nordberg C140 jaw feed hopper with 24 foot vibratory grizzly feeder

Nordberg C140 jaw feed hopper with 24 foot vibratory grizzly feeder.


Sand processing tower.

Sand processing tower

Nordberg C140 jaw with twin 24 foot grizzly feeders

Nordberg C140 jaw with twin 24 foot grizzly feeders.


Track hoe boom and stick

Track hoe boom and stick.

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