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A double toggle jaw crusher has two shafts, an eccentric shaft and a support shaft. It is an important engineering rock crushing machine. The double toggle jaw crushers are used for primary crushing and secondary crushing. The heavy flywheels and eccentric shafts grant high stability and uniformity to the crushed material.
In contrast to single toggle jaw crushers, which only have one shaft and crush at a faster rate, double toggle crushers feature an additional swing jaw that provides greater control over the size of the material being crushed. This results in a slower crushing process but with a more consistent final product. Moreover, they can handle much larger rocks than their single toggle counterparts due to the extra force provided by the two shafts working together to break down tougher materials.
Double toggle jaw crushers are capable of producing a finer aggregate by performing a secondary reduction within the same machine, which leads to more crushed stages. They also come in smaller sizes than single toggles and generally have lower power requirements thanks to the multiple stages of crushing. Industrial-grade double toggle jaw crushers, such as those used in cement plants, are bigger machines that provide constant operation over long periods with less downtime for maintenance compared to single toggles.
Classic Multi Toggle Jaw Crusher:
The classic jaw toggle crusher with a flywheel. Typically, a C-1 to C-3 jaw toggle has an electric motor driving the flywheel, which, when rotated, moves the jaw back and forth to crush rock. This jaw crusher machine can be mounted to a trailer to make it portable, but it will not crush rock as small as some of the other portable models.
Tandem Axle Trailer-Mounted Jaw Crusher:
This type of jaw crusher is mounted on a tandem axle trailer, making it easier to transport. It has two conveyors, one for the material being fed into the chamber and another for the material that has already been crushed and is ready for use. The size of this type of jaw crusher usually makes it necessary to have two different trailers, one for transporting the crusher and the other for transporting the first conveyor.
Single vs. Double Toggle Jaw Crusher:
Generally, jaw crushers use an eccentric shaft to move the swing jaw. In a single toggle jaw crusher, an eccentric reef drives the swing jaw directly through a rod. In contrast, in a double toggle jaw crusher, an eccentric shaft drives two toggle plates that indirectly move the swing jaw. Single toggle crushers typically have a lighter, more modern design and crush at a faster rate than double toggle versions. Additionally, single toggles only provide one direction of swing, whereas double toggles have a more complex mechanism with two toggles that allow for more swings in both directions. This results in greater crushing power but also increased size and weight compared to single models.
The performance of a double toggle jaw crusher can be judged by looking at some specifications. The feeding capacity of a double toggle jaw crusher is the first specification that buyers look at. Jaw crushers with the double toggle system can crush materials of varying sizes. The average feeding capacity ranges from 1,400 x 1,100 mm to 3,000 x 1,800 mm.
The average output of a double toggle jaw crusher is another important specification. Bigger crushers have a higher output. Small to medium-sized crushers have an output of 100 to 1,500 tons per hour. Larger models can crush anywhere between 2,200 and 5,600 tons of granite per hour.
The input power shows how much energy is needed to crush different kinds of materials. Smaller double toggle jaw crushers need 75 to 160 kW of energy. Medium-sized crushers need anywhere between 225 to 400 kW. Bigger models require anything between 1,000 to 1,500 kW of energy.
In addition to the above specifications, the weight of a double toggle jaw crusher also plays a crucial role. The average weight of smaller crushers is around 50,000 to 60,000 kg. Medium to large models weigh much more. Bigger double toggle crushers can weigh anywhere between 90,000 to 110,000 kg or more.
Crushing large boulders takes a lot of energy. So, the movable and static plates are regularly lubricated by pumps. Chains and belts are routinely checked for signs of wear and tear and replaced when necessary. Most wearing parts are pre-inspected before the crusher is installed to reduce downtime during their operation.
Two toggle bearings support the entire weight and work done by the crusher. These are periodically inspected, and the areas where grease is applied are marked. Double toggle jaw crushers are securely mounted on a concrete or steel frame. The mounting mechanism should be regularly inspected to avoid any crushing mishaps.
Double toggle jaw crushers are commonly used in mining and quarrying industries to crush large rocks and stones into smaller, manageable sizes. The strong crushing capacity and greater throughput of double toggle jaw crushers make them suitable for handling hard materials like basalt and granite, which are typically used in construction projects.
Double toggle jaw crushers are frequently used as primary crushers in production lines for various materials, including cement and glass. They help break down large raw materials into smaller pieces that can be further processed by other crushers and equipment. After the initial crushing, secondary and tertiary crushers take over. These machines further reduce the size of the material to meet specific requirements, feeding smaller output material.
Double toggle jaw crushers are indispensable in recycling facilities, where they efficiently process construction and demolition waste. These crushers tackle concrete, bricks, asphalt, and other recyclable materials, transforming them into valuable aggregates for reuse in new constructions.
In the small-scale mining industry, double toggle jaw crushers play a vital role in extracting valuable minerals and ores. These crushers help break open mineral-rich rocks, making it possible to access precious metals like gold, silver, and copper for extraction and processing.
The robust construction and high productivity of double toggle jaw crushers make them adaptable to various applications. Their capacity to handle diverse materials and immense volumes makes them a preferred choice in many industries.
Consider the feed size and capacity:
When choosing a double toggle jaw crusher, it's crucial to think about the maximum feed size and required processing capacity. Businesses should evaluate the dimensions of materials they plan to crush and the quantities they need to handle to determine what size and capabilities of a crusher are appropriate for their operations.
Assess material hardness:
It's essential to consider the hardness and abrasiveness of the materials that will be crushed by the double toggle jaw crusher. These characteristics can affect the choice of design features, such as the type of jaw plates used. For instance, if extremely hard and abrasive materials require crushing, a more robust jaw plate material may be needed for optimal performance.
Evaluate power requirements:
The power needs of a double toggle jaw crusher should be carefully considered. This includes assessing the motor power required to drive the crusher effectively. Businesses should evaluate their available power supply and determine the appropriate motor power to ensure adequate functioning and performance of the crushing equipment.
Examine lubrication system:
When selecting a double toggle jaw crusher, it is important to check and consider the lubrication system it has. Proper lubrication plays a crucial role in ensuring the smooth operation and longevity of the crusher by reducing friction and wear. Businesses should evaluate the effectiveness of the lubrication system provided with the crusher to maintain optimal performance over time.
Review maintenance accessibility:
When choosing a double toggle jaw crusher, it's important to consider the accessibility for maintenance tasks. Regular maintenance is crucial for the proper functioning and longevity of the equipment, so selecting a crusher model that allows easy access to components and parts needed for maintenance is essential.
Q: What is unique about the double toggle jaw crusher?
A: The double toggle jaw crusher has two shafts that drive it. In most jaw crushers, a single shaft does the driving.
Q: Is the double toggle jaw crusher bigger than other crushers?
A: No. The double toggle jaw crusher is one of the bigger types. It is bigger than the single toggle, overhead eccentric, and compact mobile crushers.
Q: What are the smaller types of jaw crushers?
A: Other smaller types include the single toggle, inline, and universal design. The single inline design is one of the most common.
Q: Is the double toggle jaw crusher and the single toggle jaw crusher the same size?
A: No, the single toggle jaw crusher is more common and larger than the double toggle type.
