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vertical shaft impactor

Cone crushers have been around for more than a century, with models like the Nordberg Gyradisc among those commonly used in the mid-20th century. Photo: P&Q Staff

Crushing & Hydraulic Breaking | P&Q University Handbook

P&Q spotlights crushing and hydraulic breaking from the 2025 edition of the Pit & Quarry University Handbook. Keep Reading

Fred Weber crushes granite on a contract job near Loveland, Colorado, with a custom portable spread from Superior Industries. Photo: Superior Industries

Contract crusher utilizing custom portable spread in Colorado

Fred Weber is tackling a three-year-long job with a custom plant from a single source: Superior Industries. Keep Reading

Neil Hise (pictured far left) grew up around construction. When his father bought Crusher Service Co. – which eventually became Cemco – joining the family business was a no-brainer. Photo: Neil Hise

P&Q Hall of Fame Profile: Neil R. Hise

Cemco’s VSI crusher was born of necessity, but it did not come about overnight. Neil Hise manufactured his first VSI crusher in 1967. Keep Reading

Photo: Superior Industries

Superior Industries impact crushers

When utilized correctly, horizontal shaft impactors and vertical shaft impactors produce some of the highest value, highest quality material. Keep Reading

According to Stedman, its anvil ring can be repositioned with common hand tools in half the time previously required. Photo courtesy of Stedman Machine Co.

Stedman releases anvil ring for vertical shaft impactors

Stedman Machine Co. debuted an anvil ring for its vertical shaft impactors. Keep Reading

Superior Industries Valor VSI

The patent-pending Valor Vertical Shaft Impactor (VSI) shapes aggregate, generates fines and eliminates unsound material. Keep Reading

Stedman showcases VSI tube-style rotor, cage mill

Stedman Machine Co. featured some of the company's developments at ConExpo-Con/Agg 2017, including its vertical shaft impactor (VSI) tube-style metal rotor. Keep Reading

Superior debuts vertical shaft impactor

Superior Industries released its patent-pending Valor Vertical Shaft Impactor. Keep Reading

VSI crushers maximize first-pass yields, lower operating costs

All roads, you might say, lead to the vertical shaft impactor (VSI) because these crushers make it possible to create roadways and just about everything else. Francis E. Agnew of California patented one of the first VSIs in 1927. His… Keep Reading

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