Since FLSmidth first launched the EVhammer impact crusher in the mid fifties, design improvements have continuously been introduced. The EV crusher retrofit is the preferred solution when upgrading EV crushers from before 1987.
The new hammer rotor consists of a heavy, forged, square cross-section shaft fitted with cast steel rotor discs. The special "sandwich" assembly of the discs is a robust construction, preventing distortion and crack formation. The closed surface of the rotor eliminates the risk of rocks getting stuck and causing operational disturbances. The hammer rows are displaced in relation to each other and cover thereby the entire width and area, increasing the overall efficiency of the crusher.
The MHC Twin shaft breaker requires no supervision during operation. A speed monitor on the rotor shafts will stop the main motor and send a signal to the central control room if the machine is overloaded or if a non-breakable piece of material gets trapped between the rotors.
The Twin shaft breaker has four bearings that are continuously lubricated by a grease pump placed in a cabinet. The grease barrel contains grease for several months and the system is monitored by sensors that trigger an alarm if a malfunction occurs or the barrel is empty. Tools and lifting yoke are supplied together with the breaker to facilitate quick and trouble-free maintenance, including replacement of wear parts.
The EVhammer impact crusher reduces quarry size limestone boulders to mill feed in only one reduction, giving a reduction ratio of 1:100. The hammer rows are fitted in a staggered arrangement to give complete coverage across the outlet grate. The hammer assembly provides several points of attack on the raw materials, increasing the overall efficiency of the impact crusher. The crushed product has a relatively high proportion of fines and more of the comminution work is therefore moved from the less energy efficient raw mill to the more energy efficient impactcrusher.
The EVhammer impact crusher accepts coarse feed blocks, as it incorporates two shock absorbing inlet rollers. The inlet rollers accurately control the feed to the crusher and ensure a smooth and even flow of material.
By using high intensity compressive forces, your materials can be broken down into much smaller particles. However, the process is incredibly wear intensive, and can easily take its toll on your equipment and your operation. High-quality compression crusher technology and products can not only extend life of your equipment, but also improve throughput and increase overall revenue.
Invest in a compression crusher solution you can trust. FLSmidth has over a century of experience in crushing. Our crushing equipment has its origins dating back to the Fuller Company, based in Bethlehem, Pennsylvania, USA. They have been a leading supplier of crushers under the Traylor brand name since 1905. As a world class supplier of crushing equipment for the mining, cement and aggregate industries, we offer crushing products and technology with proven names like Fuller-Traylor, ABON and Buffalo and and are supported by one of the worlds largest crusher reference lists, which includes many world firsts.
Maximise your performance and monitor and protect your equipment with our Automated Control Systems, designed to give you better results while reducing maintenance and repair costs. Incorporate our engineering expertise into any and all of your crushing systems, no matter the size, up to and including systems for total plant.
FLSmidth provides sustainable productivity to the global mining and cement industries. We deliver market-leading engineering, equipment and service solutions that enable our customers to improve performance, drive down costs and reduce environmental impact. Our operations span the globe and we are close to 10,200 employees, present in more than 60 countries. In 2020, FLSmidth generated revenue of DKK 16.4 billion. MissionZero is our sustainability ambition towards zero emissions in mining and cement by 2030.