McLanahan designs Universal Primary and Secondary Horizontal Shaft Impact (HSI) Crushers that can be used in the reduction of semi-abrasive minerals and are useful in processing deleterious material. Universal Impactors provide higher capacities than compressive crushers for a lower capital investment and can be used for processing quarried stone and a variety of minerals, as well as recycling C&D materials and more.These high capacity machines are commonly used in both portable and stationary installations. Weighing less than compressive crushers, they are uniquely suited for highly portable and mobile platforms. McLanahan Universal Impact Crushers offer a higher level of material control through the crushing chamber with fewer moving parts.
All McLanahan Universal Impact Crushers are designed for simplicity and safety. Each Universal Impactor features multiple access doors for easy inspection and maintenance, with each point locked and keyed for additional safety. All Universal HSI Crushers are engineered to minimize fly rock, with a chain and rubber curtain at the feed opening to help eliminate rock ejection.
McLanahan Universal Impactors also feature optional PLC automated adjustments. Automation in McLanahan’s Universal Horizontal Shaft Impact Crushers increases efficiency and lowers the cost per ton of producing materials.
More information about specific models of both Universal Primary and Secondary HSI Crushers for all industries can be found in the Equipment Models section.
A reduction ratio of 20:1 allows the New Holland Primary Impact Crusher to reduce even the largest pieces of material to product size. Its free-flow design combines a large expansion crushing chamber; a large, solid, fabricated rotor; upper deflector screen gate with vertical openings; and lower adjustable screen gate for precise product control with maximum output.
Safety, as well as simplified maintenance and operation, are key in the New Holland Impactor design. A heavy chain and rubber curtain reduces material from rebounding out of the crushing chamber, while also keeping dust to a minimum. Replaceable, abrasion-resistant steel liners are drilled and tapped, and bolted to the crusher housing from the outside, providing 50 percent longer liner life and eliminating the danger of retaining bolts wearing and dropping into the crushing chamber.
One of the first Andreas Impact Crushers manufactured in the USA, the McLanahan line was originally designed by Universal Engineering Corp. and is capable of withstanding the rigors of accepting boulder-sized feed material.
A heavy-duty rotor generates a high-inertia impact force capable of a 12:1 average reduction ratio and provides recesses between the extra-thick rotor discs for tramp iron production. C-shaped hammers provide a more consistent gradation throughout the life of the hammer and can be vertically lifted from the rotor for reversing or replacement, resulting in more product with less downtime. Reinforced steel curtains provide controlled material flow through the crusher, and allow for quick, simple adjustments to maintain product quality.
MaxCap Primary Impact Crushers combine features of the traditional Andreas and New Holland style of impactors. With the MaxCap, producers get a large expansion area above the rotor, along with the simple operation and maintenance of the Andreas. Maximum capacity of a high-quality, cubical product at a lower cost-per-ton can be achieved with the MaxCap.
A crusher hood opens hydraulically, providing safe access to the machine’s interior. The MaxCap also comes with reversible and interchangeable cast manganese wear plates to protect the feed plate and lower breaker plate. Hammers are vertically installed with a protruding leading edge for optimum capacity and greater utilization. A 20:1 reduction ratio can be enhanced by an optional third stage attachment that can be installed to reduce top size output even further.
VersaCap Primary Impact Crushers feature interchangeable components that can be custom-fit to each customer’s specific application. Standard two-curtain designs can be field modified to a three-curtain design, and rotor assemblies are available in three or four bar designs. Each VersaCap housing and rotor assembly has a heavy-duty construction and provides unmatched durability, while minimizing downtime and increasing profitability.
VersaCap Impactors are engineered with a simple hydraulic-shim adjustment to minimize downtime while keeping the crusher operating at optimum capacity. They are also designed with more curtain retraction than competitive designs, providing more tramp iron protection. Adjust-on-the-fly technology allows producers to hydraulically adjust the system with push-button controls. The optional automation package with PLC curtain adjustment controls and a touchscreen display provides a smarter, yet for simpler and safer operation method.
The Next Generation Secondary (NGS) Impact Crusher is engineered to bring more profitability to aggregate and mineral processing operations by providing a superior, highly cubical product while reducing operating expenses. This Impactor reduces downtime for adjustments, requires fewer wear parts to inventory, and can be modified in the field to accommodate changes in application and product requirements.
The NGS Impact Crusher features a hydraulic-shim adjustment on each impact curtain for simplified operation. An optional third curtain can be installed in the field and allows for further reduction. Other design features include interchangeable liners, extra-large inspection doors, various shaft devices, and a single hydraulic power unit. The disc type rotor is equipped with an S-shaped hammer for maximum sustained productivity. The NGS line of Impactors is available with adjust-on-the-fly capabilities as an option with a complete automation package and is available in seven model sizes.
Dozens of contractors, businesses, municipalities, and state and federal agencies count on the crushed limestone aggregate produced at the APAC-Kansas City quarry. The facility produces more than 400,000 tons of crushed limestone each year for concrete and asphalt aggregate used for projects throughout the Kansas City area. READ MORE