The Compound Crusher HPC is used as a primary crusher in the cement industry. This double-rotor crusher generates a material suitable as feed material for ball mills in raw cement meal production.
Two-stage crushing within a single housing by two co-rotating rotors operating in tandem. The 1st rotor crushes the feed rocks of up to 3 m³ in volume; the 2nd rotor, which runs at a higher speed, reduces the feed material to product size. The HPC crusher has 2 or 3 impact aprons and a grinding path; the settings are controlled either by spindles and/or hydraulics, therefore allowing for optimum control of the end product granulometry. The grinding path restricts the amount of oversize.
The rotor is the key component in the crushing process. Its body together with shaft and bearings forms the "heart" of the impact crusher.
This patent rotor is HAZEMAG's own design and is a cast and welded steel construction, with individually cast rotor discs welded to the rotor body to accommodate the proprietary blow bars as primary crushing implements. The blow bars are locked in position in the holders by means of wedges, which can be easily removed for blow bar changing.
For the protection of the rotor body and blow bars, the impact aprons retract under excessive load. Two versions are available:
In the cement industry the grinding path is the decisive assembly group for reducing the oversize in the field of primary crushing. The grinding path of the HAZEMAG HPC series has been significantly improved: a technically mature system of hydraulics and mechanics permits the retraction in case of an overload. This patented solution increases the operational safety and availability and potential damages due to foreign particles and resulting downtimes are reduced. With this HAZEMAG once more demonstrates its distinct market competence.
The exclusive and unique computer-controlled hydraulic adjustment system for the impact aprons (and grinding path) allows for quick gap adjustments, optimum control over the product size, smoother crusher operation, tramp iron protection, reduced downtime and reduced operating costs. In our technically advanced HAZtronic system, the impactor performance can be optimized with recipes or pre-programmed apron settings, which further enhance the quality and consistency of the product.