When a jaw crusher is made of medium manganese steel, the jaw plates are more suitable for crushing granite, quartz stone, and concrete. This material has a high hardening ability and self-protection mechanism, reducing the rate of wear of jaw plates. High-carbon-low-alloy steel is the most suitable material for a lower-impact condition, such as crushing rocks.
Before choosing jaw crusher plates, it is important to consider the feed material. Feed material must fit in the chamber. It should be about 80% of the nominal feed opening. Thick liners will take up more space, so you should consider this when choosing the type of material. Feed arrangement is also important. Ideally, the feed chamber should be full at all times for optimal operation. If there is no room for more material, you can choose a coarser jaw profile.
The angle between the fixed jaw and swing jaw is typically less than 26 degrees. The bigger the angle, the more particles will slip between the jaws, reducing capacity and wear. Choosing the right material for jaw crusher plates is critical when it comes to maximizing production capacity. A slight wave shape helps prevent this issue. If your jaws are worn, your finished product may be of a lower quality.
Jaw plates should be checked regularly, and especially before each new job, to check for heavy wear. Checking for signs of heavy wear will allow you to spot problems in advance. If the jaw plates are cracked or chipped, or even have excessive nicks and dents, you may need to replace them. The sooner you do this, the better. If you do not replace the jaw plates regularly, you might end up wasting money on unnecessary repairs.
When choosing the material for jaw crusher plates, it is important to consider the size and feed. Choosing the wrong material can result in a reduced capacity, lower efficiency, and even breakage of the jaw crusher. While a high-quality jaw crusher with an optimal jaw profile can make the work easier, choosing the wrong one can result in more downtime. Consider the size of the feed material and the opening of the jaw, along with the feed material’s properties.
A jaw crusher is a type of machine that features a stationary or moving pitman. The pitman squeezes material as it enters the crusher and moves between the stationary and moving plates. The lower third of the chamber is the output gap and dictates the size of the crushed product. If the material is too large, it will stay in the jaws and remain there until it is small enough to pass through the gap.
Jaw crushers are designed to protect the toggle plate from damage caused by uncrushable materials. Most jaw crushers are protected with a weak line of rivets in the toggle plate. Automatic overload protection is also possible in certain designs. Hydraulic cylinders are located between the fixed jaw and frame. When a blockage occurs, the jaw will open to clear the obstruction and return to normal gap conditions.
Manganese steel has a high carbon content and improves wear resistance. Hardness increases with Crusherparts carbon content. Medium manganese steel has good hardening and deformation hardening properties and improves service life by 20%. Hardening followed by tempering is not recommended for lower carbon content steel. Moreover, it increases the rate of corrosion and premature failure, which can lead to 15% more expense than expected.
The material to be crushed will determine the type of crusher that’s necessary. Before choosing the material, make sure you know its abrasiveness and difficulty to crush. Certain materials, such as sandstone, are harder and more abrasive than others. On the other hand, marine limestone does not contain much silica and is less abrasive. When choosing jaw crusher plates, keep in mind that the gap size determines the particle size.