IROCK Crushers’ Magnum primary crusher is a high-performance four-bar impactor with heavy-duty components for reliability, increased efficiency and precision.

IROCK offers the Magnum in three sizes — the Magnum 15, Magnum 20 and Magnum 30 — all of which perform well in quarry rock, demolition debris or recyclable material. The Magnum impact crusher is ideal for operators who require a primary crusher or for those who run a screening and crushing operation and need the flexibility to perform two separate jobs simultaneously, according to the manufacturer.

The Magnum 15, 20 and 30 are equipped with Cat ACERT Tier III engines and feature 350-, 440- and 550-hp (261, 328 and 410 kW) respectively. The Magnum 15 is capable of processing up to 350 tph (317.5 t), the Magnum 20 up to 500 tph (453 t) and the Magnum 30 up to 650 tph (589 t). Each unit includes three auxiliary outlets for the operation of transfer or stacking conveyors. Additionally, each unit is equipped with a P.T. Tech clutch, which decreases power loss and increases fuel efficiency.

Magnum crushers are highly portable, and operators can enhance the ease of transport with IROCK’s optional Hydraset hopper. The Hydraset hopper operates from an internal power pack, which allows the hopper to be easily detached and placed on a trailer in a matter of minutes without a lifting device. This is crucial with the Magnum 30, which cannot be transported without the removal of the hopper because of weight limitations. After relocating, the hydraulic outriggers make for fast and easy set-up.

A vibrating feeder with a heavy-duty, two-step tapered grizzly removes fines and allows only large materials into the crusher. The feed openings vary in size with each model, ranging from 40 by 32 in. (101.6 by 81 cm) to 56 by 43 in. (142 by 109 cm).

Hydraulically adjustable aprons with three-stage crushing on IROCK’s impactor crushers allow better control over sizing. The four-bar impactor design offers maximum material reduction that minimizes wear and enhances performance and production.

The mobile crusher features IROCK’s rock box, an alternative to discharge chutes found on similar units. The rock box uses a shelf system with abrasion-resistant wear bars that allow crushed material to build up and act as a wear liner, effectively reducing maintenance. It also incorporates specialized AR-400 steel plate liners for each material transfer point, which provides better durability compared to rubber liners used by other crusher manufacturers.

Finally, an optional in-line discharge belt reaches a discharge height of 10 ft. 11 in. (3.3 m) for higher stockpiling and the ability to pair Magnum crushers with screening units.

For more information, call 866/240-0201 or visit www.irockcrushers.com.

This story also appears on Aggregate Equipment Guide.

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