The New Generation MINYU MSC/F200/300/400 *SUPERCONE* AUTO-HYDRAULIC NITROGEN CONE CRUSHER SERIES

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The New Generation MINYU MSC/F200/300/400 *SUPERCONE* AUTO-HYDRAULIC NITROGEN CONE CRUSHER SERIES

According to a Rock Products January, 2001 report: ............... "In the late 1980s, engineers at Nordberg's Milwaukee Test Center had nearly wrapped up a round of full-scale tests to determine the optimum configuration for a new cone crusher line. The full-scale tests were done with limestone, gravel and trap rock. Each of the many crusher design variables had been changed, one at a time, and operated through an allowable range to find the optimized steepness of the head angle, oscillation speed of the cone, operating horsepower and throw of the cone. While optimizing capacity was the major goal, they were also trying to improve particle shape.

"We thought we had optimized all the variables," said Scot Szalanski, now general manager for the central region of Nordberg Sales Corp. During the test program, Nordberg decided to experiment with changing two variables at once. Increased speed was operated with increased throw. "During this test, the product produced looked like little dice, and we had an increased capacity we'd never before experienced," said Szalanski.

"What we found out," Szalanski explained, "was that changing these two variables at the same time opened up a new horizon in development of cone crushers, as far as significantly improving product cubicity and significantly increasing capacity.

"No longer would we get bad particle shape if we increased the throw; and no longer were we restricted by a certain speed to give us the optimized capacity," said Szalanski. "We were not only able to greatly increase the capacity of a machine by significantly increasing the speed and the throw but we got a major improvement in particle shape."

Through the 1990s, other leading manufacturers of cone crushers adopted steeper crushing chambers, longer strokes, higher speeds and higher horsepower. The ultimate goal, of course, is increased production. "As a result of our work at our test center, we now have a cone with increased power, speed and throw," said Szalanski.

Nordberg introduced this new process with the 1990 release of its HP300, and continued to expand the production of its HP line through the 1990s (HP stands for high performance). The HP800, an 800-hp machine, was introduced in 2000.

In 1998, Cedarapids Inc. unveiled its Rollercone MVP machines. They run at speeds to 1,000 rpm on the pinion shaft, whereas the Rollercone II, the previous version, was limited to 950 rpm on the pinion shaft. Rollercone II is a series of high-speed cone crushers first introduced in 1993. At the 54-in. cone size, the Rollercone MVP has 400 hp, compared to 300 hp on the 54-in. Rollercone II................."

Well! Enough for this history!

The latest MINYU cone crusher technology may best be manifested by the new MINYU MCN400 "SUPERCONE" AUTO-HYDRAULIC NITROGEN CONE CRUSHER rolled out in late 2003. The MINYU MCN400, not only perfects further the speed/throw/capacity increase as well as the product cubicity improvement (which has long being well displayed by MINYU's line of Short-Head and Sand Cone designs), but most importantly, it's now field proven after one year that we may comfortably say it'll outperform Norberg's and Cedarapids' for one of the most important considerations, a stronger and much more rugged structural design like MINYU MCN400 leads to stronger and longer life-expectancy of the cone crusher. period!

Check it out below some of the photos taken onsite in 2004: