Sentry Horizontal
Shaft Impactor (HSI)

Sentry HSI 51x65 Superior Industries


A Horizontal Shaft Impact (HSI) crusher is one of the most popular tools for producing cube-shaped products.

Feed material quickly contacts a series of blow bars spinning rapidly on a rotor. These blow bars (hammers) violently toss the rocks against steel curtains (aprons). Eventually, newly shaped rock exits the opening at the bottom of the HSI.

Compared to compression crushers like jaws and cones, horizontal shaft impactors will accept larger feed sizes, process a higher tonnage and allow excellent control of particle shape and size by simply adjusting the spacing of its internal components.

Superior builds more than a dozen HSI models:

  • Maximum feed size up to 31″ (800mm)
  • Product size of 10″ – 1″ (254 – 25mm)
  • Maximum tonnage rate of 990 STPH (900 MTPH)

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Features & Benefits

Sentry HSI - CONEXPO 2020_Booth_ by Superior Industries
Sentry HSI on display at Superior’s CONEXPO/CONAGG 2020 booth.


opening & closing

Access to cavity is controlled hydraulically for safe and consistent entry to internals.


inspection doors

Multiple chamber access points at the top, side and back of the crusher.


blow bars

Two, three or four bar options with multiple material options improves application flexibility.


side liners

Mix and match these universally-sized liners to prolong wear life and decrease replacement costs.


rotor design

Open rotor design generates high inertia for lower cost of ownership.


curtain adjustment

Easy hydraulic adjustment of the crusher’s closed side setting (CSS).

Sentry HSI Videos

At CONEXPO/CONAGG 2020, Jason Adams introduces the 5054 model in this video.

Mike Schultz provides a pre-CONEXPO overview for a crusher useful to quarry or recycle applications.

Animation showing the features of the Sentry HSI Horizontal Shaft Impactor crusher.


2-Year / 6,000 Hour

The Sentry HSI comes backed by a rock-solid 2-year / 6,000-hour warranty against manufacturer defects.

man arms crossed 400h

Related Products

Valor® VSI

Patriot® Cone Crusher

Liberty® Jaw Crusher

stock inventory mockup laptop - front page

Stock Inventory

While our dealers are the best source, we often carry a limited amount of equipment in inventory. These will be processed through a dealer if there is coverage in your region.

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