Crushing & Milling Circuits
Location:New Mexico,California,Nevada, Arizona
- Primary Gyratory Crushers
- Secondary & Tertiary Crushers
- Ball, Rod, Sag Mill Comminution
- Wet & Dry Dust Collection Systems
- Converying & Stacking Systems
- Reclaim Tunnels
Sundt has built over a dozen crushing and milling circuit projects for various mining clients. The projects vary from "grassroots" installations at new mines to retro-fitting and upgrading existing operating facilities. Project work includes installing crushers, conveying and material handling systems; civil excavations, placement of structural steel and concrete, mechanical/piping installations, and complete E&IC.
Cyprus Primary Crusher - Sundt constructed the primary crushing, conveying, and material stockpiling systems. The project included installation of two gyratory crushers, and 2.8 miles of 60-inch belt conveyors from the in-pit primary crushers to the mill feed area. The work involved civil excavations, placement of 800 tons of reinforcing steel, 9,000 cubic yards of concrete, 460 tons of structural plate and steel members, and setting two 84-inch gyratory crushers. The ore reclaim tunnel was constructed to handle 6,450 tons per hour. An additional 1.7 miles of 70-inch belt conveyor was installed for waste rock handling.
Southwest Copper Producer (Company Name Confidential) - Sundt rebuilt three tertiary crushers, three Ludowici screens, and design/built the primary crusher dust collection system. We also removed and replaced two tertiary crushers, one secondary crusher (Sandvick CH880s), two single-deck discharge screens, one double-deck secondary discharge screen (Ludowici discharge screens). We removed the old wet dust scrubbing systems and replaced them with nine new dry dust collection systems. Project scope included installation of all associated mechanical, piping, and E&IC. Work was conducted during three separate 7-10 day plant outages.
Cresson Gold Mine - Sundt installed a new primary crusher with an 85-foot-tall retaining wall, a secondary crusher, and new leach pads with the associated overland conveying systems. We also constructed a carbon absorption process facility to process gold-bearing cyanide solutions, and provided a temporary man-camp to house craft workforce personnel.
Anamax Crusher/Mill - Sundt constructed a three-part project that included the crushing and mill facility and a pit extension to the Eisenhower Mine. Sundt also installed the reclaim tunnel and associated conveying systems.
Phelps – Sag Mill - Sundt installed the new recycle sag mill, crushing plant and concentrator.