Mobile impact crusher proves itself in real time
Construction companies don’t handle just one or two tons of material at a time.
In any job, they may be required to move or process hundreds, or even thousands, of tons of material.
This year, for example, in just three workdays, Larsen Dirtworks of Foreston, Minnesota, crushed 780 tons of concrete curb and sidewalk, plus a little asphalt, for reuse as base material.
It turned out to be a two-man job, although the two men – Larsen Dirtworks President Mark Larsen and his brother, Vice President Rich Larsen – multiplied their strength through the use of a Cat 908M loader, a Case 160B excavator, a Case 55B excavator with a hammer attachment, and their brand-new EvoQuip Cobra 230R mobile impact crusher.
“We went down to Kentucky to EvoQuip’s facility to demo this new Cobra 230R onsite mobile crusher,” Rich says. “We knew this would be a perfect fit for what we wanted to do.”
On the job
The sidewalk crushing job, part of a larger effort to replace water and sewer lines in a seven-block area of Anoka, Minnesota, represented Larsen’s first opportunity to use the Cobra.
According to the brothers, everything went smoothly on the Cobra’s first job. Mark and Rich began crushing on a Wednesday and wrapped up on a Friday, allowing other contractors to move in and complete the rest of the project on schedule.
The crushed material produced by the Cobra 230R was stored on a city lot provided for the project. The material was reused when the streets were repaved.
“It saves on trucking costs, material disposal and having to rebuy the same material needed later on in the project,” says Travis Neyssen, president of Kamke Construction, which was a subcontractor on the project. “It saves cost and time all across the board.”
According to EvoQuip, which is a Terex brand, the Cobra features a transport length of 43.7 ft. and an 8 ft. width. The machine is a versatile, mobile impact crusher that can handle applications such as reinforced concrete, recycled asphalt, construction and demolition waste, and natural rock.
The Cobra’s 33-in. x 34-in. rotor diameter gives the crusher an output potential of 275 tph, and its integrated after-screen system ensures the required product specification is achieved, with oversize material either stockpiled or recirculated back into the crusher.
Larsen acquired its Cobra from the Ruffridge-Johnson Equipment Co., which became part of EvoQuip’s U.S. dealership network earlier this year. Doug McDonald was the lead sales representa-tive and contact for Larsen Dirtworks at Ruffridge-Johnson, helping the brothers get their new unit up and running.
Information for this article courtesy of EvoQuip.