Sentry® Horizontal Shaft Impactor (HSI)

Sentry HSI 51x65 by Superior Industries 400px

Sustainable Material Recycling

Horizontal Shaft Impactors (HSI) are widely used in demolition, aggregate recycling, or operations producing road base material.

That’s because they typically handle a wider range of material and produce less fines than VSI crushers– two features important for concrete and asphalt recycling or crushing glass and bricks.

Superior’s Sentry HSI is a rugged and resilient horizontal impact crusher capable of processing large feed sizes from dirtier conditions.


Clay & Brick Crushing

Quarried Stone

Recycle Concrete

Cubical Products

Recycled Asphalt



Spacious Chamber

Designed with proper spacing inside the chamber for processing larger feed sizes (up to 40”/1,000mm).


High-Powered Rotor

A cast closed design creates the highest possible inertia producing a maximum crushing force.


Convenient Hydraulic functions

Hydraulically-designed components include curtain adjustments and opening/closing of the chamber.

Feature - Sentry HSI -univeral side liners

Universal Side LIners

Mix and match these commonly-shaped liners to prolong wear life and decrease replacement costs.

How An HSI Works

Upon entry, 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) causing the material to break. Eventually, newly shaped rock exits the opening at the bottom of the HSI.

Local Stock. Local Support. Local Experts!

Impact Crushers

benefits of impact crushing

When utilized correctly, impact crushers are absolute rockstars! They produce some of the highest value, highest quality material in the aggregates industry.


Animated Features: Sentry® Horizontal Shaft Impact Crusher

Animated overview of Sentry HSI Crusher features.

Sentry® HSI Closed Circuit Plant | CONEXPO-CON/AGG 2023 Product Display

New HSI Closed Circuit Plant displayed at CONEXPO-CON/AGG.

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Compare Sentry HSI’s

ModelRotor Size (D x W) (in)Max Feed Size (in)Feed Opening (in)Capacity (stph)Power (hp)
SP515551″ x 55″35.4″52″ x 59″275 – 385350
SP556555″ x 65″31.5″45″ x 62″390 – 550500
SP638463″ x 84″39.4″63″ x 85″770 – 990700
SS393639″ x 36″15.7″26″ x 37″90 – 165150
SS435543″ x 55″17.7″28″ x 57″165 – 275250
SS516551″ x 65″19.7″29.5″ x 65″275 – 440500
SS558355″ x 83″23.6″33″ x 85″330 – 550800
SS4355G43″ x 55″17.7″28″ x 57″165 – 275250
SS5165G51″ x 65″19.7″30″ x 67″275 – 484500
SS5583G55″ x 83″23.6″33″ x 85″330 – 550800
SR393639″ x 36″19.7″27″ x 37″90 – 165150
SR425042″ x 50″19.7″33″ x 51″130-220250
SR516551″ x 65″23.6″48″  x 65″275 – 440400
ModelRotor Size (D x W) (mm)Max Feed Size (mm)Feed Opening (mm)Capacity (mtph)Power (kW)
SP51551,300 x 1,4009001,325 x 1,512250 – 350250
SP55651,400 x 1,6508001,150 x 1,570355 – 500350
SP63841,600 x 2,1301,0001,600 x 2,150700 – 900500
SS39361,000 x 900400650 x 95080 – 150110
SS43551,100 x 1,400450700 x 1,450150 – 250185
SS51651,300 x 1,650500770 x 1,650250-400350
SS55831,400 x 2,100600850 x 2,150300 – 500600
SS4355G1,100 x 1,400450700 x 1,450150 – 250185
SS5165G1,300 x 1,650500750 x 1,700250 – 440350
SS5583G1,400 x 2,100600850 x 2,150300 – 500600
SR39361,000 x 900500700 x 95080 – 150110
SR42501,070 x 1,270500834 x 1,300120-200185
SR51651,300 x 1,6506001,200 x 1,650250-400315
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Sentry HSI Literature

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Crushing & Screening Handbook

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Crusher Wear Parts Guide

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